ActivityManager.java revision 388945c01d4e00701e0157c96390eeac4b307b8a
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.WINDOWING_MODE_SPLIT_SCREEN_PRIMARY; 20import static android.app.WindowConfiguration.WINDOWING_MODE_FREEFORM; 21import static android.app.WindowConfiguration.WINDOWING_MODE_FULLSCREEN; 22import static android.app.WindowConfiguration.WINDOWING_MODE_PINNED; 23import static android.app.WindowConfiguration.WINDOWING_MODE_SPLIT_SCREEN_SECONDARY; 24import static android.app.WindowConfiguration.WINDOWING_MODE_UNDEFINED; 25 26import android.Manifest; 27import android.annotation.IntDef; 28import android.annotation.NonNull; 29import android.annotation.Nullable; 30import android.annotation.RequiresPermission; 31import android.annotation.SystemApi; 32import android.annotation.SystemService; 33import android.annotation.TestApi; 34import android.content.ComponentName; 35import android.content.Context; 36import android.content.Intent; 37import android.content.UriPermission; 38import android.content.pm.ActivityInfo; 39import android.content.pm.ApplicationInfo; 40import android.content.pm.ConfigurationInfo; 41import android.content.pm.IPackageDataObserver; 42import android.content.pm.PackageManager; 43import android.content.pm.ParceledListSlice; 44import android.content.pm.UserInfo; 45import android.content.res.Configuration; 46import android.content.res.Resources; 47import android.graphics.Bitmap; 48import android.graphics.Canvas; 49import android.graphics.Color; 50import android.graphics.GraphicBuffer; 51import android.graphics.Matrix; 52import android.graphics.Point; 53import android.graphics.Rect; 54import android.os.BatteryStats; 55import android.os.Build; 56import android.os.Build.VERSION_CODES; 57import android.os.Bundle; 58import android.os.Debug; 59import android.os.Handler; 60import android.os.IBinder; 61import android.os.Parcel; 62import android.os.Parcelable; 63import android.os.Process; 64import android.os.RemoteException; 65import android.os.ServiceManager; 66import android.os.SystemProperties; 67import android.os.UserHandle; 68import android.text.TextUtils; 69import android.util.ArrayMap; 70import android.util.DisplayMetrics; 71import android.util.Singleton; 72import android.util.Size; 73 74import com.android.internal.app.procstats.ProcessStats; 75import com.android.internal.os.RoSystemProperties; 76import com.android.internal.os.TransferPipe; 77import com.android.internal.util.FastPrintWriter; 78import com.android.server.LocalServices; 79 80import org.xmlpull.v1.XmlSerializer; 81 82import java.io.FileDescriptor; 83import java.io.FileOutputStream; 84import java.io.IOException; 85import java.io.PrintWriter; 86import java.lang.annotation.Retention; 87import java.lang.annotation.RetentionPolicy; 88import java.util.ArrayList; 89import java.util.List; 90 91/** 92 * <p> 93 * This class gives information about, and interacts 94 * with, activities, services, and the containing 95 * process. 96 * </p> 97 * 98 * <p> 99 * A number of the methods in this class are for 100 * debugging or informational purposes and they should 101 * not be used to affect any runtime behavior of 102 * your app. These methods are called out as such in 103 * the method level documentation. 104 * </p> 105 * 106 *<p> 107 * Most application developers should not have the need to 108 * use this class, most of whose methods are for specialized 109 * use cases. However, a few methods are more broadly applicable. 110 * For instance, {@link android.app.ActivityManager#isLowRamDevice() isLowRamDevice()} 111 * enables your app to detect whether it is running on a low-memory device, 112 * and behave accordingly. 113 * {@link android.app.ActivityManager#clearApplicationUserData() clearApplicationUserData()} 114 * is for apps with reset-data functionality. 115 * </p> 116 * 117 * <p> 118 * In some special use cases, where an app interacts with 119 * its Task stack, the app may use the 120 * {@link android.app.ActivityManager.AppTask} and 121 * {@link android.app.ActivityManager.RecentTaskInfo} inner 122 * classes. However, in general, the methods in this class should 123 * be used for testing and debugging purposes only. 124 * </p> 125 */ 126@SystemService(Context.ACTIVITY_SERVICE) 127public class ActivityManager { 128 private static String TAG = "ActivityManager"; 129 130 private static int gMaxRecentTasks = -1; 131 132 private final Context mContext; 133 134 private static volatile boolean sSystemReady = false; 135 136 137 private static final int FIRST_START_FATAL_ERROR_CODE = -100; 138 private static final int LAST_START_FATAL_ERROR_CODE = -1; 139 private static final int FIRST_START_SUCCESS_CODE = 0; 140 private static final int LAST_START_SUCCESS_CODE = 99; 141 private static final int FIRST_START_NON_FATAL_ERROR_CODE = 100; 142 private static final int LAST_START_NON_FATAL_ERROR_CODE = 199; 143 144 static final class UidObserver extends IUidObserver.Stub { 145 final OnUidImportanceListener mListener; 146 final Context mContext; 147 148 UidObserver(OnUidImportanceListener listener, Context clientContext) { 149 mListener = listener; 150 mContext = clientContext; 151 } 152 153 @Override 154 public void onUidStateChanged(int uid, int procState, long procStateSeq) { 155 mListener.onUidImportance(uid, RunningAppProcessInfo.procStateToImportanceForClient( 156 procState, mContext)); 157 } 158 159 @Override 160 public void onUidGone(int uid, boolean disabled) { 161 mListener.onUidImportance(uid, RunningAppProcessInfo.IMPORTANCE_GONE); 162 } 163 164 @Override 165 public void onUidActive(int uid) { 166 } 167 168 @Override 169 public void onUidIdle(int uid, boolean disabled) { 170 } 171 172 @Override public void onUidCachedChanged(int uid, boolean cached) { 173 } 174 } 175 176 final ArrayMap<OnUidImportanceListener, UidObserver> mImportanceListeners = new ArrayMap<>(); 177 178 /** 179 * Defines acceptable types of bugreports. 180 * @hide 181 */ 182 @Retention(RetentionPolicy.SOURCE) 183 @IntDef({ 184 BUGREPORT_OPTION_FULL, 185 BUGREPORT_OPTION_INTERACTIVE, 186 BUGREPORT_OPTION_REMOTE, 187 BUGREPORT_OPTION_WEAR, 188 BUGREPORT_OPTION_TELEPHONY 189 }) 190 public @interface BugreportMode {} 191 /** 192 * Takes a bugreport without user interference (and hence causing less 193 * interference to the system), but includes all sections. 194 * @hide 195 */ 196 public static final int BUGREPORT_OPTION_FULL = 0; 197 /** 198 * Allows user to monitor progress and enter additional data; might not include all 199 * sections. 200 * @hide 201 */ 202 public static final int BUGREPORT_OPTION_INTERACTIVE = 1; 203 /** 204 * Takes a bugreport requested remotely by administrator of the Device Owner app, 205 * not the device's user. 206 * @hide 207 */ 208 public static final int BUGREPORT_OPTION_REMOTE = 2; 209 /** 210 * Takes a bugreport on a wearable device. 211 * @hide 212 */ 213 public static final int BUGREPORT_OPTION_WEAR = 3; 214 215 /** 216 * Takes a lightweight version of bugreport that only includes a few, urgent sections 217 * used to report telephony bugs. 218 * @hide 219 */ 220 public static final int BUGREPORT_OPTION_TELEPHONY = 4; 221 222 /** 223 * <a href="{@docRoot}guide/topics/manifest/meta-data-element.html">{@code 224 * <meta-data>}</a> name for a 'home' Activity that declares a package that is to be 225 * uninstalled in lieu of the declaring one. The package named here must be 226 * signed with the same certificate as the one declaring the {@code <meta-data>}. 227 */ 228 public static final String META_HOME_ALTERNATE = "android.app.home.alternate"; 229 230 // NOTE: Before adding a new start result, please reference the defined ranges to ensure the 231 // result is properly categorized. 232 233 /** 234 * Result for IActivityManager.startVoiceActivity: active session is currently hidden. 235 * @hide 236 */ 237 public static final int START_VOICE_HIDDEN_SESSION = FIRST_START_FATAL_ERROR_CODE; 238 239 /** 240 * Result for IActivityManager.startVoiceActivity: active session does not match 241 * the requesting token. 242 * @hide 243 */ 244 public static final int START_VOICE_NOT_ACTIVE_SESSION = FIRST_START_FATAL_ERROR_CODE + 1; 245 246 /** 247 * Result for IActivityManager.startActivity: trying to start a background user 248 * activity that shouldn't be displayed for all users. 249 * @hide 250 */ 251 public static final int START_NOT_CURRENT_USER_ACTIVITY = FIRST_START_FATAL_ERROR_CODE + 2; 252 253 /** 254 * Result for IActivityManager.startActivity: trying to start an activity under voice 255 * control when that activity does not support the VOICE category. 256 * @hide 257 */ 258 public static final int START_NOT_VOICE_COMPATIBLE = FIRST_START_FATAL_ERROR_CODE + 3; 259 260 /** 261 * Result for IActivityManager.startActivity: an error where the 262 * start had to be canceled. 263 * @hide 264 */ 265 public static final int START_CANCELED = FIRST_START_FATAL_ERROR_CODE + 4; 266 267 /** 268 * Result for IActivityManager.startActivity: an error where the 269 * thing being started is not an activity. 270 * @hide 271 */ 272 public static final int START_NOT_ACTIVITY = FIRST_START_FATAL_ERROR_CODE + 5; 273 274 /** 275 * Result for IActivityManager.startActivity: an error where the 276 * caller does not have permission to start the activity. 277 * @hide 278 */ 279 public static final int START_PERMISSION_DENIED = FIRST_START_FATAL_ERROR_CODE + 6; 280 281 /** 282 * Result for IActivityManager.startActivity: an error where the 283 * caller has requested both to forward a result and to receive 284 * a result. 285 * @hide 286 */ 287 public static final int START_FORWARD_AND_REQUEST_CONFLICT = FIRST_START_FATAL_ERROR_CODE + 7; 288 289 /** 290 * Result for IActivityManager.startActivity: an error where the 291 * requested class is not found. 292 * @hide 293 */ 294 public static final int START_CLASS_NOT_FOUND = FIRST_START_FATAL_ERROR_CODE + 8; 295 296 /** 297 * Result for IActivityManager.startActivity: an error where the 298 * given Intent could not be resolved to an activity. 299 * @hide 300 */ 301 public static final int START_INTENT_NOT_RESOLVED = FIRST_START_FATAL_ERROR_CODE + 9; 302 303 /** 304 * Result for IActivityManager.startAssistantActivity: active session is currently hidden. 305 * @hide 306 */ 307 public static final int START_ASSISTANT_HIDDEN_SESSION = FIRST_START_FATAL_ERROR_CODE + 10; 308 309 /** 310 * Result for IActivityManager.startAssistantActivity: active session does not match 311 * the requesting token. 312 * @hide 313 */ 314 public static final int START_ASSISTANT_NOT_ACTIVE_SESSION = FIRST_START_FATAL_ERROR_CODE + 11; 315 316 /** 317 * Result for IActivityManaqer.startActivity: the activity was started 318 * successfully as normal. 319 * @hide 320 */ 321 public static final int START_SUCCESS = FIRST_START_SUCCESS_CODE; 322 323 /** 324 * Result for IActivityManaqer.startActivity: the caller asked that the Intent not 325 * be executed if it is the recipient, and that is indeed the case. 326 * @hide 327 */ 328 public static final int START_RETURN_INTENT_TO_CALLER = FIRST_START_SUCCESS_CODE + 1; 329 330 /** 331 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 332 * a task was simply brought to the foreground. 333 * @hide 334 */ 335 public static final int START_TASK_TO_FRONT = FIRST_START_SUCCESS_CODE + 2; 336 337 /** 338 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 339 * the given Intent was given to the existing top activity. 340 * @hide 341 */ 342 public static final int START_DELIVERED_TO_TOP = FIRST_START_SUCCESS_CODE + 3; 343 344 /** 345 * Result for IActivityManaqer.startActivity: request was canceled because 346 * app switches are temporarily canceled to ensure the user's last request 347 * (such as pressing home) is performed. 348 * @hide 349 */ 350 public static final int START_SWITCHES_CANCELED = FIRST_START_NON_FATAL_ERROR_CODE; 351 352 /** 353 * Result for IActivityManaqer.startActivity: a new activity was attempted to be started 354 * while in Lock Task Mode. 355 * @hide 356 */ 357 public static final int START_RETURN_LOCK_TASK_MODE_VIOLATION = 358 FIRST_START_NON_FATAL_ERROR_CODE + 1; 359 360 /** 361 * Result for IActivityManaqer.startActivity: a new activity start was aborted. Never returned 362 * externally. 363 * @hide 364 */ 365 public static final int START_ABORTED = FIRST_START_NON_FATAL_ERROR_CODE + 2; 366 367 /** 368 * Flag for IActivityManaqer.startActivity: do special start mode where 369 * a new activity is launched only if it is needed. 370 * @hide 371 */ 372 public static final int START_FLAG_ONLY_IF_NEEDED = 1<<0; 373 374 /** 375 * Flag for IActivityManaqer.startActivity: launch the app for 376 * debugging. 377 * @hide 378 */ 379 public static final int START_FLAG_DEBUG = 1<<1; 380 381 /** 382 * Flag for IActivityManaqer.startActivity: launch the app for 383 * allocation tracking. 384 * @hide 385 */ 386 public static final int START_FLAG_TRACK_ALLOCATION = 1<<2; 387 388 /** 389 * Flag for IActivityManaqer.startActivity: launch the app with 390 * native debugging support. 391 * @hide 392 */ 393 public static final int START_FLAG_NATIVE_DEBUGGING = 1<<3; 394 395 /** 396 * Result for IActivityManaqer.broadcastIntent: success! 397 * @hide 398 */ 399 public static final int BROADCAST_SUCCESS = 0; 400 401 /** 402 * Result for IActivityManaqer.broadcastIntent: attempt to broadcast 403 * a sticky intent without appropriate permission. 404 * @hide 405 */ 406 public static final int BROADCAST_STICKY_CANT_HAVE_PERMISSION = -1; 407 408 /** 409 * Result for IActivityManager.broadcastIntent: trying to send a broadcast 410 * to a stopped user. Fail. 411 * @hide 412 */ 413 public static final int BROADCAST_FAILED_USER_STOPPED = -2; 414 415 /** 416 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 417 * for a sendBroadcast operation. 418 * @hide 419 */ 420 public static final int INTENT_SENDER_BROADCAST = 1; 421 422 /** 423 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 424 * for a startActivity operation. 425 * @hide 426 */ 427 public static final int INTENT_SENDER_ACTIVITY = 2; 428 429 /** 430 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 431 * for an activity result operation. 432 * @hide 433 */ 434 public static final int INTENT_SENDER_ACTIVITY_RESULT = 3; 435 436 /** 437 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 438 * for a startService operation. 439 * @hide 440 */ 441 public static final int INTENT_SENDER_SERVICE = 4; 442 443 /** 444 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 445 * for a startForegroundService operation. 446 * @hide 447 */ 448 public static final int INTENT_SENDER_FOREGROUND_SERVICE = 5; 449 450 /** @hide User operation call: success! */ 451 public static final int USER_OP_SUCCESS = 0; 452 453 /** @hide User operation call: given user id is not known. */ 454 public static final int USER_OP_UNKNOWN_USER = -1; 455 456 /** @hide User operation call: given user id is the current user, can't be stopped. */ 457 public static final int USER_OP_IS_CURRENT = -2; 458 459 /** @hide User operation call: system user can't be stopped. */ 460 public static final int USER_OP_ERROR_IS_SYSTEM = -3; 461 462 /** @hide User operation call: one of related users cannot be stopped. */ 463 public static final int USER_OP_ERROR_RELATED_USERS_CANNOT_STOP = -4; 464 465 /** @hide Not a real process state. */ 466 public static final int PROCESS_STATE_UNKNOWN = -1; 467 468 /** @hide Process is a persistent system process. */ 469 public static final int PROCESS_STATE_PERSISTENT = 0; 470 471 /** @hide Process is a persistent system process and is doing UI. */ 472 public static final int PROCESS_STATE_PERSISTENT_UI = 1; 473 474 /** @hide Process is hosting the current top activities. Note that this covers 475 * all activities that are visible to the user. */ 476 public static final int PROCESS_STATE_TOP = 2; 477 478 /** @hide Process is hosting a foreground service due to a system binding. */ 479 public static final int PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 3; 480 481 /** @hide Process is hosting a foreground service. */ 482 public static final int PROCESS_STATE_FOREGROUND_SERVICE = 4; 483 484 /** @hide Same as {@link #PROCESS_STATE_TOP} but while device is sleeping. */ 485 public static final int PROCESS_STATE_TOP_SLEEPING = 5; 486 487 /** @hide Process is important to the user, and something they are aware of. */ 488 public static final int PROCESS_STATE_IMPORTANT_FOREGROUND = 6; 489 490 /** @hide Process is important to the user, but not something they are aware of. */ 491 public static final int PROCESS_STATE_IMPORTANT_BACKGROUND = 7; 492 493 /** @hide Process is in the background transient so we will try to keep running. */ 494 public static final int PROCESS_STATE_TRANSIENT_BACKGROUND = 8; 495 496 /** @hide Process is in the background running a backup/restore operation. */ 497 public static final int PROCESS_STATE_BACKUP = 9; 498 499 /** @hide Process is in the background, but it can't restore its state so we want 500 * to try to avoid killing it. */ 501 public static final int PROCESS_STATE_HEAVY_WEIGHT = 10; 502 503 /** @hide Process is in the background running a service. Unlike oom_adj, this level 504 * is used for both the normal running in background state and the executing 505 * operations state. */ 506 public static final int PROCESS_STATE_SERVICE = 11; 507 508 /** @hide Process is in the background running a receiver. Note that from the 509 * perspective of oom_adj receivers run at a higher foreground level, but for our 510 * prioritization here that is not necessary and putting them below services means 511 * many fewer changes in some process states as they receive broadcasts. */ 512 public static final int PROCESS_STATE_RECEIVER = 12; 513 514 /** @hide Process is in the background but hosts the home activity. */ 515 public static final int PROCESS_STATE_HOME = 13; 516 517 /** @hide Process is in the background but hosts the last shown activity. */ 518 public static final int PROCESS_STATE_LAST_ACTIVITY = 14; 519 520 /** @hide Process is being cached for later use and contains activities. */ 521 public static final int PROCESS_STATE_CACHED_ACTIVITY = 15; 522 523 /** @hide Process is being cached for later use and is a client of another cached 524 * process that contains activities. */ 525 public static final int PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 16; 526 527 /** @hide Process is being cached for later use and is empty. */ 528 public static final int PROCESS_STATE_CACHED_EMPTY = 17; 529 530 /** @hide Process does not exist. */ 531 public static final int PROCESS_STATE_NONEXISTENT = 18; 532 533 /** @hide The lowest process state number */ 534 public static final int MIN_PROCESS_STATE = PROCESS_STATE_PERSISTENT; 535 536 /** @hide The highest process state number */ 537 public static final int MAX_PROCESS_STATE = PROCESS_STATE_NONEXISTENT; 538 539 /** @hide Should this process state be considered a background state? */ 540 public static final boolean isProcStateBackground(int procState) { 541 return procState >= PROCESS_STATE_TRANSIENT_BACKGROUND; 542 } 543 544 /** @hide requestType for assist context: only basic information. */ 545 public static final int ASSIST_CONTEXT_BASIC = 0; 546 547 /** @hide requestType for assist context: generate full AssistStructure. */ 548 public static final int ASSIST_CONTEXT_FULL = 1; 549 550 /** @hide requestType for assist context: generate full AssistStructure for autofill. */ 551 public static final int ASSIST_CONTEXT_AUTOFILL = 2; 552 553 /** @hide Flag for registerUidObserver: report changes in process state. */ 554 public static final int UID_OBSERVER_PROCSTATE = 1<<0; 555 556 /** @hide Flag for registerUidObserver: report uid gone. */ 557 public static final int UID_OBSERVER_GONE = 1<<1; 558 559 /** @hide Flag for registerUidObserver: report uid has become idle. */ 560 public static final int UID_OBSERVER_IDLE = 1<<2; 561 562 /** @hide Flag for registerUidObserver: report uid has become active. */ 563 public static final int UID_OBSERVER_ACTIVE = 1<<3; 564 565 /** @hide Flag for registerUidObserver: report uid cached state has changed. */ 566 public static final int UID_OBSERVER_CACHED = 1<<4; 567 568 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: normal free-to-run operation. */ 569 public static final int APP_START_MODE_NORMAL = 0; 570 571 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later. */ 572 public static final int APP_START_MODE_DELAYED = 1; 573 574 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later, with 575 * rigid errors (throwing exception). */ 576 public static final int APP_START_MODE_DELAYED_RIGID = 2; 577 578 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: disable/cancel pending 579 * launches; this is the mode for ephemeral apps. */ 580 public static final int APP_START_MODE_DISABLED = 3; 581 582 /** 583 * Lock task mode is not active. 584 */ 585 public static final int LOCK_TASK_MODE_NONE = 0; 586 587 /** 588 * Full lock task mode is active. 589 */ 590 public static final int LOCK_TASK_MODE_LOCKED = 1; 591 592 /** 593 * App pinning mode is active. 594 */ 595 public static final int LOCK_TASK_MODE_PINNED = 2; 596 597 Point mAppTaskThumbnailSize; 598 599 /*package*/ ActivityManager(Context context, Handler handler) { 600 mContext = context; 601 } 602 603 /** 604 * Returns whether the launch was successful. 605 * @hide 606 */ 607 public static final boolean isStartResultSuccessful(int result) { 608 return FIRST_START_SUCCESS_CODE <= result && result <= LAST_START_SUCCESS_CODE; 609 } 610 611 /** 612 * Returns whether the launch result was a fatal error. 613 * @hide 614 */ 615 public static final boolean isStartResultFatalError(int result) { 616 return FIRST_START_FATAL_ERROR_CODE <= result && result <= LAST_START_FATAL_ERROR_CODE; 617 } 618 619 /** 620 * Screen compatibility mode: the application most always run in 621 * compatibility mode. 622 * @hide 623 */ 624 public static final int COMPAT_MODE_ALWAYS = -1; 625 626 /** 627 * Screen compatibility mode: the application can never run in 628 * compatibility mode. 629 * @hide 630 */ 631 public static final int COMPAT_MODE_NEVER = -2; 632 633 /** 634 * Screen compatibility mode: unknown. 635 * @hide 636 */ 637 public static final int COMPAT_MODE_UNKNOWN = -3; 638 639 /** 640 * Screen compatibility mode: the application currently has compatibility 641 * mode disabled. 642 * @hide 643 */ 644 public static final int COMPAT_MODE_DISABLED = 0; 645 646 /** 647 * Screen compatibility mode: the application currently has compatibility 648 * mode enabled. 649 * @hide 650 */ 651 public static final int COMPAT_MODE_ENABLED = 1; 652 653 /** 654 * Screen compatibility mode: request to toggle the application's 655 * compatibility mode. 656 * @hide 657 */ 658 public static final int COMPAT_MODE_TOGGLE = 2; 659 660 private static final boolean DEVELOPMENT_FORCE_LOW_RAM = 661 SystemProperties.getBoolean("debug.force_low_ram", false); 662 663 /** @hide */ 664 @TestApi 665 public static class StackId { 666 667 private StackId() { 668 } 669 670 /** Invalid stack ID. */ 671 public static final int INVALID_STACK_ID = -1; 672 673 /** First static stack ID. 674 * @hide */ 675 private static final int FIRST_STATIC_STACK_ID = 0; 676 677 /** ID of stack where fullscreen activities are normally launched into. 678 * @hide */ 679 public static final int FULLSCREEN_WORKSPACE_STACK_ID = 1; 680 681 /** ID of stack where freeform/resized activities are normally launched into. 682 * @hide */ 683 public static final int FREEFORM_WORKSPACE_STACK_ID = FULLSCREEN_WORKSPACE_STACK_ID + 1; 684 685 /** ID of stack that occupies a dedicated region of the screen. 686 * @hide */ 687 public static final int DOCKED_STACK_ID = FREEFORM_WORKSPACE_STACK_ID + 1; 688 689 /** ID of stack that always on top (always visible) when it exist. 690 * @hide */ 691 public static final int PINNED_STACK_ID = DOCKED_STACK_ID + 1; 692 693 /** Last static stack stack ID. 694 * @hide */ 695 private static final int LAST_STATIC_STACK_ID = PINNED_STACK_ID; 696 697 /** Start of ID range used by stacks that are created dynamically. 698 * @hide */ 699 public static final int FIRST_DYNAMIC_STACK_ID = LAST_STATIC_STACK_ID + 1; 700 701 // TODO: Figure-out a way to remove this. 702 /** @hide */ 703 public static boolean isStaticStack(int stackId) { 704 return stackId >= FIRST_STATIC_STACK_ID && stackId <= LAST_STATIC_STACK_ID; 705 } 706 707 // TODO: It seems this mostly means a stack on a secondary display now. Need to see if 708 // there are other meanings. If not why not just use information from the display? 709 /** @hide */ 710 public static boolean isDynamicStack(int stackId) { 711 return stackId >= FIRST_DYNAMIC_STACK_ID; 712 } 713 714 /** 715 * Returns true if we try to maintain focus in the current stack when the top activity 716 * finishes. 717 * @hide 718 */ 719 // TODO: Figure-out a way to remove. Probably isn't needed in the new world... 720 public static boolean keepFocusInStackIfPossible(int stackId) { 721 return stackId == FREEFORM_WORKSPACE_STACK_ID 722 || stackId == DOCKED_STACK_ID || stackId == PINNED_STACK_ID; 723 } 724 725 /** 726 * Returns true if the windows of tasks being moved to the target stack from the source 727 * stack should be replaced, meaning that window manager will keep the old window around 728 * until the new is ready. 729 * @hide 730 */ 731 public static boolean replaceWindowsOnTaskMove(int sourceStackId, int targetStackId) { 732 return sourceStackId == FREEFORM_WORKSPACE_STACK_ID 733 || targetStackId == FREEFORM_WORKSPACE_STACK_ID; 734 } 735 736 /** 737 * Returns true if the top task in the task is allowed to return home when finished and 738 * there are other tasks in the stack. 739 * @hide 740 */ 741 public static boolean allowTopTaskToReturnHome(int stackId) { 742 return stackId != PINNED_STACK_ID; 743 } 744 745 /** 746 * Returns true if the stack should be resized to match the bounds specified by 747 * {@link ActivityOptions#setLaunchBounds} when launching an activity into the stack. 748 * @hide 749 */ 750 public static boolean resizeStackWithLaunchBounds(int stackId) { 751 return stackId == PINNED_STACK_ID; 752 } 753 754 /** 755 * Returns true if a window from the specified stack with {@param stackId} are normally 756 * fullscreen, i. e. they can become the top opaque fullscreen window, meaning that it 757 * controls system bars, lockscreen occluded/dismissing state, screen rotation animation, 758 * etc. 759 * @hide 760 */ 761 // TODO: What about the other side of docked stack if we move this to WindowConfiguration? 762 public static boolean normallyFullscreenWindows(int stackId) { 763 return stackId != PINNED_STACK_ID && stackId != FREEFORM_WORKSPACE_STACK_ID 764 && stackId != DOCKED_STACK_ID; 765 } 766 767 /** Returns the stack id for the input windowing mode. 768 * @hide */ 769 // TODO: To be removed once we are not using stack id for stuff... 770 public static int getStackIdForWindowingMode(int windowingMode) { 771 switch (windowingMode) { 772 case WINDOWING_MODE_PINNED: return PINNED_STACK_ID; 773 case WINDOWING_MODE_FREEFORM: return FREEFORM_WORKSPACE_STACK_ID; 774 case WINDOWING_MODE_SPLIT_SCREEN_PRIMARY: return DOCKED_STACK_ID; 775 case WINDOWING_MODE_SPLIT_SCREEN_SECONDARY: return FULLSCREEN_WORKSPACE_STACK_ID; 776 case WINDOWING_MODE_FULLSCREEN: return FULLSCREEN_WORKSPACE_STACK_ID; 777 default: return INVALID_STACK_ID; 778 } 779 } 780 781 /** Returns the windowing mode that should be used for this input stack id. 782 * @hide */ 783 // TODO: To be removed once we are not using stack id for stuff... 784 public static int getWindowingModeForStackId(int stackId, boolean inSplitScreenMode) { 785 final int windowingMode; 786 switch (stackId) { 787 case FULLSCREEN_WORKSPACE_STACK_ID: 788 windowingMode = inSplitScreenMode 789 ? WINDOWING_MODE_SPLIT_SCREEN_SECONDARY : WINDOWING_MODE_FULLSCREEN; 790 break; 791 case PINNED_STACK_ID: 792 windowingMode = WINDOWING_MODE_PINNED; 793 break; 794 case DOCKED_STACK_ID: 795 windowingMode = WINDOWING_MODE_SPLIT_SCREEN_PRIMARY; 796 break; 797 case FREEFORM_WORKSPACE_STACK_ID: 798 windowingMode = WINDOWING_MODE_FREEFORM; 799 break; 800 default : 801 windowingMode = WINDOWING_MODE_UNDEFINED; 802 } 803 return windowingMode; 804 } 805 } 806 807 /** 808 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 809 * specifies the position of the created docked stack at the top half of the screen if 810 * in portrait mode or at the left half of the screen if in landscape mode. 811 * @hide 812 */ 813 public static final int DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT = 0; 814 815 /** 816 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 817 * specifies the position of the created docked stack at the bottom half of the screen if 818 * in portrait mode or at the right half of the screen if in landscape mode. 819 * @hide 820 */ 821 public static final int DOCKED_STACK_CREATE_MODE_BOTTOM_OR_RIGHT = 1; 822 823 /** 824 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 825 * that the resize doesn't need to preserve the window, and can be skipped if bounds 826 * is unchanged. This mode is used by window manager in most cases. 827 * @hide 828 */ 829 public static final int RESIZE_MODE_SYSTEM = 0; 830 831 /** 832 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 833 * that the resize should preserve the window if possible. 834 * @hide 835 */ 836 public static final int RESIZE_MODE_PRESERVE_WINDOW = (0x1 << 0); 837 838 /** 839 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 840 * that the resize should be performed even if the bounds appears unchanged. 841 * @hide 842 */ 843 public static final int RESIZE_MODE_FORCED = (0x1 << 1); 844 845 /** 846 * Input parameter to {@link android.app.IActivityManager#resizeTask} used by window 847 * manager during a screen rotation. 848 * @hide 849 */ 850 public static final int RESIZE_MODE_SYSTEM_SCREEN_ROTATION = RESIZE_MODE_PRESERVE_WINDOW; 851 852 /** 853 * Input parameter to {@link android.app.IActivityManager#resizeTask} used when the 854 * resize is due to a drag action. 855 * @hide 856 */ 857 public static final int RESIZE_MODE_USER = RESIZE_MODE_PRESERVE_WINDOW; 858 859 /** 860 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 861 * that the resize should preserve the window if possible, and should not be skipped 862 * even if the bounds is unchanged. Usually used to force a resizing when a drag action 863 * is ending. 864 * @hide 865 */ 866 public static final int RESIZE_MODE_USER_FORCED = 867 RESIZE_MODE_PRESERVE_WINDOW | RESIZE_MODE_FORCED; 868 869 /** @hide */ 870 public int getFrontActivityScreenCompatMode() { 871 try { 872 return getService().getFrontActivityScreenCompatMode(); 873 } catch (RemoteException e) { 874 throw e.rethrowFromSystemServer(); 875 } 876 } 877 878 /** @hide */ 879 public void setFrontActivityScreenCompatMode(int mode) { 880 try { 881 getService().setFrontActivityScreenCompatMode(mode); 882 } catch (RemoteException e) { 883 throw e.rethrowFromSystemServer(); 884 } 885 } 886 887 /** @hide */ 888 public int getPackageScreenCompatMode(String packageName) { 889 try { 890 return getService().getPackageScreenCompatMode(packageName); 891 } catch (RemoteException e) { 892 throw e.rethrowFromSystemServer(); 893 } 894 } 895 896 /** @hide */ 897 public void setPackageScreenCompatMode(String packageName, int mode) { 898 try { 899 getService().setPackageScreenCompatMode(packageName, mode); 900 } catch (RemoteException e) { 901 throw e.rethrowFromSystemServer(); 902 } 903 } 904 905 /** @hide */ 906 public boolean getPackageAskScreenCompat(String packageName) { 907 try { 908 return getService().getPackageAskScreenCompat(packageName); 909 } catch (RemoteException e) { 910 throw e.rethrowFromSystemServer(); 911 } 912 } 913 914 /** @hide */ 915 public void setPackageAskScreenCompat(String packageName, boolean ask) { 916 try { 917 getService().setPackageAskScreenCompat(packageName, ask); 918 } catch (RemoteException e) { 919 throw e.rethrowFromSystemServer(); 920 } 921 } 922 923 /** 924 * Return the approximate per-application memory class of the current 925 * device. This gives you an idea of how hard a memory limit you should 926 * impose on your application to let the overall system work best. The 927 * returned value is in megabytes; the baseline Android memory class is 928 * 16 (which happens to be the Java heap limit of those devices); some 929 * device with more memory may return 24 or even higher numbers. 930 */ 931 public int getMemoryClass() { 932 return staticGetMemoryClass(); 933 } 934 935 /** @hide */ 936 static public int staticGetMemoryClass() { 937 // Really brain dead right now -- just take this from the configured 938 // vm heap size, and assume it is in megabytes and thus ends with "m". 939 String vmHeapSize = SystemProperties.get("dalvik.vm.heapgrowthlimit", ""); 940 if (vmHeapSize != null && !"".equals(vmHeapSize)) { 941 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1)); 942 } 943 return staticGetLargeMemoryClass(); 944 } 945 946 /** 947 * Return the approximate per-application memory class of the current 948 * device when an application is running with a large heap. This is the 949 * space available for memory-intensive applications; most applications 950 * should not need this amount of memory, and should instead stay with the 951 * {@link #getMemoryClass()} limit. The returned value is in megabytes. 952 * This may be the same size as {@link #getMemoryClass()} on memory 953 * constrained devices, or it may be significantly larger on devices with 954 * a large amount of available RAM. 955 * 956 * <p>The is the size of the application's Dalvik heap if it has 957 * specified <code>android:largeHeap="true"</code> in its manifest. 958 */ 959 public int getLargeMemoryClass() { 960 return staticGetLargeMemoryClass(); 961 } 962 963 /** @hide */ 964 static public int staticGetLargeMemoryClass() { 965 // Really brain dead right now -- just take this from the configured 966 // vm heap size, and assume it is in megabytes and thus ends with "m". 967 String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m"); 968 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1)); 969 } 970 971 /** 972 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 973 * is ultimately up to the device configuration, but currently it generally means 974 * something in the class of a 512MB device with about a 800x480 or less screen. 975 * This is mostly intended to be used by apps to determine whether they should turn 976 * off certain features that require more RAM. 977 */ 978 public boolean isLowRamDevice() { 979 return isLowRamDeviceStatic(); 980 } 981 982 /** @hide */ 983 public static boolean isLowRamDeviceStatic() { 984 return RoSystemProperties.CONFIG_LOW_RAM || 985 (Build.IS_DEBUGGABLE && DEVELOPMENT_FORCE_LOW_RAM); 986 } 987 988 /** 989 * Returns true if this is a small battery device. Exactly whether a device is considered to be 990 * small battery is ultimately up to the device configuration, but currently it generally means 991 * something in the class of a device with 1000 mAh or less. This is mostly intended to be used 992 * to determine whether certain features should be altered to account for a drastically smaller 993 * battery. 994 * @hide 995 */ 996 public static boolean isSmallBatteryDevice() { 997 return RoSystemProperties.CONFIG_SMALL_BATTERY; 998 } 999 1000 /** 1001 * Used by persistent processes to determine if they are running on a 1002 * higher-end device so should be okay using hardware drawing acceleration 1003 * (which tends to consume a lot more RAM). 1004 * @hide 1005 */ 1006 static public boolean isHighEndGfx() { 1007 return !isLowRamDeviceStatic() && 1008 !Resources.getSystem().getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 1009 } 1010 1011 /** 1012 * Return the maximum number of recents entries that we will maintain and show. 1013 * @hide 1014 */ 1015 static public int getMaxRecentTasksStatic() { 1016 if (gMaxRecentTasks < 0) { 1017 return gMaxRecentTasks = isLowRamDeviceStatic() ? 36 : 48; 1018 } 1019 return gMaxRecentTasks; 1020 } 1021 1022 /** 1023 * Return the default limit on the number of recents that an app can make. 1024 * @hide 1025 */ 1026 static public int getDefaultAppRecentsLimitStatic() { 1027 return getMaxRecentTasksStatic() / 6; 1028 } 1029 1030 /** 1031 * Return the maximum limit on the number of recents that an app can make. 1032 * @hide 1033 */ 1034 static public int getMaxAppRecentsLimitStatic() { 1035 return getMaxRecentTasksStatic() / 2; 1036 } 1037 1038 /** 1039 * Returns true if the system supports at least one form of multi-window. 1040 * E.g. freeform, split-screen, picture-in-picture. 1041 * @hide 1042 */ 1043 @TestApi 1044 static public boolean supportsMultiWindow(Context context) { 1045 // On watches, multi-window is used to present essential system UI, and thus it must be 1046 // supported regardless of device memory characteristics. 1047 boolean isWatch = context.getPackageManager().hasSystemFeature( 1048 PackageManager.FEATURE_WATCH); 1049 return (!isLowRamDeviceStatic() || isWatch) 1050 && Resources.getSystem().getBoolean( 1051 com.android.internal.R.bool.config_supportsMultiWindow); 1052 } 1053 1054 /** 1055 * Returns true if the system supports split screen multi-window. 1056 * @hide 1057 */ 1058 @TestApi 1059 static public boolean supportsSplitScreenMultiWindow(Context context) { 1060 return supportsMultiWindow(context) 1061 && Resources.getSystem().getBoolean( 1062 com.android.internal.R.bool.config_supportsSplitScreenMultiWindow); 1063 } 1064 1065 /** @removed */ 1066 @Deprecated 1067 public static int getMaxNumPictureInPictureActions() { 1068 return 3; 1069 } 1070 1071 /** 1072 * Information you can set and retrieve about the current activity within the recent task list. 1073 */ 1074 public static class TaskDescription implements Parcelable { 1075 /** @hide */ 1076 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 1077 private static final String ATTR_TASKDESCRIPTIONLABEL = 1078 ATTR_TASKDESCRIPTION_PREFIX + "label"; 1079 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 1080 ATTR_TASKDESCRIPTION_PREFIX + "color"; 1081 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 1082 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 1083 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 1084 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 1085 1086 private String mLabel; 1087 private Bitmap mIcon; 1088 private String mIconFilename; 1089 private int mColorPrimary; 1090 private int mColorBackground; 1091 private int mStatusBarColor; 1092 private int mNavigationBarColor; 1093 1094 /** 1095 * Creates the TaskDescription to the specified values. 1096 * 1097 * @param label A label and description of the current state of this task. 1098 * @param icon An icon that represents the current state of this task. 1099 * @param colorPrimary A color to override the theme's primary color. This color must be 1100 * opaque. 1101 */ 1102 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 1103 this(label, icon, null, colorPrimary, 0, 0, 0); 1104 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1105 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1106 } 1107 } 1108 1109 /** 1110 * Creates the TaskDescription to the specified values. 1111 * 1112 * @param label A label and description of the current state of this activity. 1113 * @param icon An icon that represents the current state of this activity. 1114 */ 1115 public TaskDescription(String label, Bitmap icon) { 1116 this(label, icon, null, 0, 0, 0, 0); 1117 } 1118 1119 /** 1120 * Creates the TaskDescription to the specified values. 1121 * 1122 * @param label A label and description of the current state of this activity. 1123 */ 1124 public TaskDescription(String label) { 1125 this(label, null, null, 0, 0, 0, 0); 1126 } 1127 1128 /** 1129 * Creates an empty TaskDescription. 1130 */ 1131 public TaskDescription() { 1132 this(null, null, null, 0, 0, 0, 0); 1133 } 1134 1135 /** @hide */ 1136 public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary, 1137 int colorBackground, int statusBarColor, int navigationBarColor) { 1138 mLabel = label; 1139 mIcon = icon; 1140 mIconFilename = iconFilename; 1141 mColorPrimary = colorPrimary; 1142 mColorBackground = colorBackground; 1143 mStatusBarColor = statusBarColor; 1144 mNavigationBarColor = navigationBarColor; 1145 } 1146 1147 /** 1148 * Creates a copy of another TaskDescription. 1149 */ 1150 public TaskDescription(TaskDescription td) { 1151 copyFrom(td); 1152 } 1153 1154 /** 1155 * Copies this the values from another TaskDescription. 1156 * @hide 1157 */ 1158 public void copyFrom(TaskDescription other) { 1159 mLabel = other.mLabel; 1160 mIcon = other.mIcon; 1161 mIconFilename = other.mIconFilename; 1162 mColorPrimary = other.mColorPrimary; 1163 mColorBackground = other.mColorBackground; 1164 mStatusBarColor = other.mStatusBarColor; 1165 mNavigationBarColor = other.mNavigationBarColor; 1166 } 1167 1168 /** 1169 * Copies this the values from another TaskDescription, but preserves the hidden fields 1170 * if they weren't set on {@code other} 1171 * @hide 1172 */ 1173 public void copyFromPreserveHiddenFields(TaskDescription other) { 1174 mLabel = other.mLabel; 1175 mIcon = other.mIcon; 1176 mIconFilename = other.mIconFilename; 1177 mColorPrimary = other.mColorPrimary; 1178 if (other.mColorBackground != 0) { 1179 mColorBackground = other.mColorBackground; 1180 } 1181 if (other.mStatusBarColor != 0) { 1182 mStatusBarColor = other.mStatusBarColor; 1183 } 1184 if (other.mNavigationBarColor != 0) { 1185 mNavigationBarColor = other.mNavigationBarColor; 1186 } 1187 } 1188 1189 private TaskDescription(Parcel source) { 1190 readFromParcel(source); 1191 } 1192 1193 /** 1194 * Sets the label for this task description. 1195 * @hide 1196 */ 1197 public void setLabel(String label) { 1198 mLabel = label; 1199 } 1200 1201 /** 1202 * Sets the primary color for this task description. 1203 * @hide 1204 */ 1205 public void setPrimaryColor(int primaryColor) { 1206 // Ensure that the given color is valid 1207 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1208 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1209 } 1210 mColorPrimary = primaryColor; 1211 } 1212 1213 /** 1214 * Sets the background color for this task description. 1215 * @hide 1216 */ 1217 public void setBackgroundColor(int backgroundColor) { 1218 // Ensure that the given color is valid 1219 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1220 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1221 } 1222 mColorBackground = backgroundColor; 1223 } 1224 1225 /** 1226 * @hide 1227 */ 1228 public void setStatusBarColor(int statusBarColor) { 1229 mStatusBarColor = statusBarColor; 1230 } 1231 1232 /** 1233 * @hide 1234 */ 1235 public void setNavigationBarColor(int navigationBarColor) { 1236 mNavigationBarColor = navigationBarColor; 1237 } 1238 1239 /** 1240 * Sets the icon for this task description. 1241 * @hide 1242 */ 1243 public void setIcon(Bitmap icon) { 1244 mIcon = icon; 1245 } 1246 1247 /** 1248 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1249 * bitmap. 1250 * @hide 1251 */ 1252 public void setIconFilename(String iconFilename) { 1253 mIconFilename = iconFilename; 1254 mIcon = null; 1255 } 1256 1257 /** 1258 * @return The label and description of the current state of this task. 1259 */ 1260 public String getLabel() { 1261 return mLabel; 1262 } 1263 1264 /** 1265 * @return The icon that represents the current state of this task. 1266 */ 1267 public Bitmap getIcon() { 1268 if (mIcon != null) { 1269 return mIcon; 1270 } 1271 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1272 } 1273 1274 /** @hide */ 1275 public String getIconFilename() { 1276 return mIconFilename; 1277 } 1278 1279 /** @hide */ 1280 public Bitmap getInMemoryIcon() { 1281 return mIcon; 1282 } 1283 1284 /** @hide */ 1285 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1286 if (iconFilename != null) { 1287 try { 1288 return getService().getTaskDescriptionIcon(iconFilename, 1289 userId); 1290 } catch (RemoteException e) { 1291 throw e.rethrowFromSystemServer(); 1292 } 1293 } 1294 return null; 1295 } 1296 1297 /** 1298 * @return The color override on the theme's primary color. 1299 */ 1300 public int getPrimaryColor() { 1301 return mColorPrimary; 1302 } 1303 1304 /** 1305 * @return The background color. 1306 * @hide 1307 */ 1308 public int getBackgroundColor() { 1309 return mColorBackground; 1310 } 1311 1312 /** 1313 * @hide 1314 */ 1315 public int getStatusBarColor() { 1316 return mStatusBarColor; 1317 } 1318 1319 /** 1320 * @hide 1321 */ 1322 public int getNavigationBarColor() { 1323 return mNavigationBarColor; 1324 } 1325 1326 /** @hide */ 1327 public void saveToXml(XmlSerializer out) throws IOException { 1328 if (mLabel != null) { 1329 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1330 } 1331 if (mColorPrimary != 0) { 1332 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1333 Integer.toHexString(mColorPrimary)); 1334 } 1335 if (mColorBackground != 0) { 1336 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1337 Integer.toHexString(mColorBackground)); 1338 } 1339 if (mIconFilename != null) { 1340 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 1341 } 1342 } 1343 1344 /** @hide */ 1345 public void restoreFromXml(String attrName, String attrValue) { 1346 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1347 setLabel(attrValue); 1348 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1349 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1350 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1351 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1352 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 1353 setIconFilename(attrValue); 1354 } 1355 } 1356 1357 @Override 1358 public int describeContents() { 1359 return 0; 1360 } 1361 1362 @Override 1363 public void writeToParcel(Parcel dest, int flags) { 1364 if (mLabel == null) { 1365 dest.writeInt(0); 1366 } else { 1367 dest.writeInt(1); 1368 dest.writeString(mLabel); 1369 } 1370 if (mIcon == null) { 1371 dest.writeInt(0); 1372 } else { 1373 dest.writeInt(1); 1374 mIcon.writeToParcel(dest, 0); 1375 } 1376 dest.writeInt(mColorPrimary); 1377 dest.writeInt(mColorBackground); 1378 dest.writeInt(mStatusBarColor); 1379 dest.writeInt(mNavigationBarColor); 1380 if (mIconFilename == null) { 1381 dest.writeInt(0); 1382 } else { 1383 dest.writeInt(1); 1384 dest.writeString(mIconFilename); 1385 } 1386 } 1387 1388 public void readFromParcel(Parcel source) { 1389 mLabel = source.readInt() > 0 ? source.readString() : null; 1390 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1391 mColorPrimary = source.readInt(); 1392 mColorBackground = source.readInt(); 1393 mStatusBarColor = source.readInt(); 1394 mNavigationBarColor = source.readInt(); 1395 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1396 } 1397 1398 public static final Creator<TaskDescription> CREATOR 1399 = new Creator<TaskDescription>() { 1400 public TaskDescription createFromParcel(Parcel source) { 1401 return new TaskDescription(source); 1402 } 1403 public TaskDescription[] newArray(int size) { 1404 return new TaskDescription[size]; 1405 } 1406 }; 1407 1408 @Override 1409 public String toString() { 1410 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1411 " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary + 1412 " colorBackground: " + mColorBackground + 1413 " statusBarColor: " + mColorBackground + 1414 " navigationBarColor: " + mNavigationBarColor; 1415 } 1416 } 1417 1418 /** 1419 * Information you can retrieve about tasks that the user has most recently 1420 * started or visited. 1421 */ 1422 public static class RecentTaskInfo implements Parcelable { 1423 /** 1424 * If this task is currently running, this is the identifier for it. 1425 * If it is not running, this will be -1. 1426 */ 1427 public int id; 1428 1429 /** 1430 * The true identifier of this task, valid even if it is not running. 1431 */ 1432 public int persistentId; 1433 1434 /** 1435 * The original Intent used to launch the task. You can use this 1436 * Intent to re-launch the task (if it is no longer running) or bring 1437 * the current task to the front. 1438 */ 1439 public Intent baseIntent; 1440 1441 /** 1442 * If this task was started from an alias, this is the actual 1443 * activity component that was initially started; the component of 1444 * the baseIntent in this case is the name of the actual activity 1445 * implementation that the alias referred to. Otherwise, this is null. 1446 */ 1447 public ComponentName origActivity; 1448 1449 /** 1450 * The actual activity component that started the task. 1451 * @hide 1452 */ 1453 @Nullable 1454 public ComponentName realActivity; 1455 1456 /** 1457 * Description of the task's last state. 1458 */ 1459 public CharSequence description; 1460 1461 /** 1462 * The id of the ActivityStack this Task was on most recently. 1463 * @hide 1464 */ 1465 public int stackId; 1466 1467 /** 1468 * The id of the user the task was running as. 1469 * @hide 1470 */ 1471 public int userId; 1472 1473 /** 1474 * The first time this task was active. 1475 * @hide 1476 */ 1477 public long firstActiveTime; 1478 1479 /** 1480 * The last time this task was active. 1481 * @hide 1482 */ 1483 public long lastActiveTime; 1484 1485 /** 1486 * The recent activity values for the highest activity in the stack to have set the values. 1487 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1488 */ 1489 public TaskDescription taskDescription; 1490 1491 /** 1492 * Task affiliation for grouping with other tasks. 1493 */ 1494 public int affiliatedTaskId; 1495 1496 /** 1497 * Task affiliation color of the source task with the affiliated task id. 1498 * 1499 * @hide 1500 */ 1501 public int affiliatedTaskColor; 1502 1503 /** 1504 * The component launched as the first activity in the task. 1505 * This can be considered the "application" of this task. 1506 */ 1507 public ComponentName baseActivity; 1508 1509 /** 1510 * The activity component at the top of the history stack of the task. 1511 * This is what the user is currently doing. 1512 */ 1513 public ComponentName topActivity; 1514 1515 /** 1516 * Number of activities in this task. 1517 */ 1518 public int numActivities; 1519 1520 /** 1521 * The bounds of the task. 1522 * @hide 1523 */ 1524 public Rect bounds; 1525 1526 /** 1527 * True if the task can go in the docked stack. 1528 * @hide 1529 */ 1530 public boolean supportsSplitScreenMultiWindow; 1531 1532 /** 1533 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1534 * @hide 1535 */ 1536 public int resizeMode; 1537 1538 public RecentTaskInfo() { 1539 } 1540 1541 @Override 1542 public int describeContents() { 1543 return 0; 1544 } 1545 1546 @Override 1547 public void writeToParcel(Parcel dest, int flags) { 1548 dest.writeInt(id); 1549 dest.writeInt(persistentId); 1550 if (baseIntent != null) { 1551 dest.writeInt(1); 1552 baseIntent.writeToParcel(dest, 0); 1553 } else { 1554 dest.writeInt(0); 1555 } 1556 ComponentName.writeToParcel(origActivity, dest); 1557 ComponentName.writeToParcel(realActivity, dest); 1558 TextUtils.writeToParcel(description, dest, 1559 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1560 if (taskDescription != null) { 1561 dest.writeInt(1); 1562 taskDescription.writeToParcel(dest, 0); 1563 } else { 1564 dest.writeInt(0); 1565 } 1566 dest.writeInt(stackId); 1567 dest.writeInt(userId); 1568 dest.writeLong(firstActiveTime); 1569 dest.writeLong(lastActiveTime); 1570 dest.writeInt(affiliatedTaskId); 1571 dest.writeInt(affiliatedTaskColor); 1572 ComponentName.writeToParcel(baseActivity, dest); 1573 ComponentName.writeToParcel(topActivity, dest); 1574 dest.writeInt(numActivities); 1575 if (bounds != null) { 1576 dest.writeInt(1); 1577 bounds.writeToParcel(dest, 0); 1578 } else { 1579 dest.writeInt(0); 1580 } 1581 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1582 dest.writeInt(resizeMode); 1583 } 1584 1585 public void readFromParcel(Parcel source) { 1586 id = source.readInt(); 1587 persistentId = source.readInt(); 1588 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1589 origActivity = ComponentName.readFromParcel(source); 1590 realActivity = ComponentName.readFromParcel(source); 1591 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1592 taskDescription = source.readInt() > 0 ? 1593 TaskDescription.CREATOR.createFromParcel(source) : null; 1594 stackId = source.readInt(); 1595 userId = source.readInt(); 1596 firstActiveTime = source.readLong(); 1597 lastActiveTime = source.readLong(); 1598 affiliatedTaskId = source.readInt(); 1599 affiliatedTaskColor = source.readInt(); 1600 baseActivity = ComponentName.readFromParcel(source); 1601 topActivity = ComponentName.readFromParcel(source); 1602 numActivities = source.readInt(); 1603 bounds = source.readInt() > 0 ? 1604 Rect.CREATOR.createFromParcel(source) : null; 1605 supportsSplitScreenMultiWindow = source.readInt() == 1; 1606 resizeMode = source.readInt(); 1607 } 1608 1609 public static final Creator<RecentTaskInfo> CREATOR 1610 = new Creator<RecentTaskInfo>() { 1611 public RecentTaskInfo createFromParcel(Parcel source) { 1612 return new RecentTaskInfo(source); 1613 } 1614 public RecentTaskInfo[] newArray(int size) { 1615 return new RecentTaskInfo[size]; 1616 } 1617 }; 1618 1619 private RecentTaskInfo(Parcel source) { 1620 readFromParcel(source); 1621 } 1622 } 1623 1624 /** 1625 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1626 * that have set their 1627 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1628 */ 1629 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1630 1631 /** 1632 * Provides a list that does not contain any 1633 * recent tasks that currently are not available to the user. 1634 */ 1635 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1636 1637 /** 1638 * Provides a list that contains recent tasks for all 1639 * profiles of a user. 1640 * @hide 1641 */ 1642 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1643 1644 /** 1645 * Ignores all tasks that are on the home stack. 1646 * @hide 1647 */ 1648 public static final int RECENT_IGNORE_HOME_AND_RECENTS_STACK_TASKS = 0x0008; 1649 1650 /** 1651 * Ignores the top task in the docked stack. 1652 * @hide 1653 */ 1654 public static final int RECENT_INGORE_DOCKED_STACK_TOP_TASK = 0x0010; 1655 1656 /** 1657 * Ignores all tasks that are on the pinned stack. 1658 * @hide 1659 */ 1660 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1661 1662 /** 1663 * <p></p>Return a list of the tasks that the user has recently launched, with 1664 * the most recent being first and older ones after in order. 1665 * 1666 * <p><b>Note: this method is only intended for debugging and presenting 1667 * task management user interfaces</b>. This should never be used for 1668 * core logic in an application, such as deciding between different 1669 * behaviors based on the information found here. Such uses are 1670 * <em>not</em> supported, and will likely break in the future. For 1671 * example, if multiple applications can be actively running at the 1672 * same time, assumptions made about the meaning of the data here for 1673 * purposes of control flow will be incorrect.</p> 1674 * 1675 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1676 * no longer available to third party applications: the introduction of 1677 * document-centric recents means 1678 * it can leak personal information to the caller. For backwards compatibility, 1679 * it will still return a small subset of its data: at least the caller's 1680 * own tasks (though see {@link #getAppTasks()} for the correct supported 1681 * way to retrieve that information), and possibly some other tasks 1682 * such as home that are known to not be sensitive. 1683 * 1684 * @param maxNum The maximum number of entries to return in the list. The 1685 * actual number returned may be smaller, depending on how many tasks the 1686 * user has started and the maximum number the system can remember. 1687 * @param flags Information about what to return. May be any combination 1688 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1689 * 1690 * @return Returns a list of RecentTaskInfo records describing each of 1691 * the recent tasks. 1692 */ 1693 @Deprecated 1694 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1695 throws SecurityException { 1696 try { 1697 return getService().getRecentTasks(maxNum, 1698 flags, UserHandle.myUserId()).getList(); 1699 } catch (RemoteException e) { 1700 throw e.rethrowFromSystemServer(); 1701 } 1702 } 1703 1704 /** 1705 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1706 * specific user. It requires holding 1707 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1708 * @param maxNum The maximum number of entries to return in the list. The 1709 * actual number returned may be smaller, depending on how many tasks the 1710 * user has started and the maximum number the system can remember. 1711 * @param flags Information about what to return. May be any combination 1712 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1713 * 1714 * @return Returns a list of RecentTaskInfo records describing each of 1715 * the recent tasks. Most recently activated tasks go first. 1716 * 1717 * @hide 1718 */ 1719 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1720 throws SecurityException { 1721 try { 1722 return getService().getRecentTasks(maxNum, 1723 flags, userId).getList(); 1724 } catch (RemoteException e) { 1725 throw e.rethrowFromSystemServer(); 1726 } 1727 } 1728 1729 /** 1730 * Information you can retrieve about a particular task that is currently 1731 * "running" in the system. Note that a running task does not mean the 1732 * given task actually has a process it is actively running in; it simply 1733 * means that the user has gone to it and never closed it, but currently 1734 * the system may have killed its process and is only holding on to its 1735 * last state in order to restart it when the user returns. 1736 */ 1737 public static class RunningTaskInfo implements Parcelable { 1738 /** 1739 * A unique identifier for this task. 1740 */ 1741 public int id; 1742 1743 /** 1744 * The stack that currently contains this task. 1745 * @hide 1746 */ 1747 public int stackId; 1748 1749 /** 1750 * The component launched as the first activity in the task. This can 1751 * be considered the "application" of this task. 1752 */ 1753 public ComponentName baseActivity; 1754 1755 /** 1756 * The activity component at the top of the history stack of the task. 1757 * This is what the user is currently doing. 1758 */ 1759 public ComponentName topActivity; 1760 1761 /** 1762 * Thumbnail representation of the task's current state. Currently 1763 * always null. 1764 */ 1765 public Bitmap thumbnail; 1766 1767 /** 1768 * Description of the task's current state. 1769 */ 1770 public CharSequence description; 1771 1772 /** 1773 * Number of activities in this task. 1774 */ 1775 public int numActivities; 1776 1777 /** 1778 * Number of activities that are currently running (not stopped 1779 * and persisted) in this task. 1780 */ 1781 public int numRunning; 1782 1783 /** 1784 * Last time task was run. For sorting. 1785 * @hide 1786 */ 1787 public long lastActiveTime; 1788 1789 /** 1790 * True if the task can go in the docked stack. 1791 * @hide 1792 */ 1793 public boolean supportsSplitScreenMultiWindow; 1794 1795 /** 1796 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1797 * @hide 1798 */ 1799 public int resizeMode; 1800 1801 /** 1802 * The full configuration the task is currently running in. 1803 * @hide 1804 */ 1805 public Configuration configuration = new Configuration(); 1806 1807 public RunningTaskInfo() { 1808 } 1809 1810 public int describeContents() { 1811 return 0; 1812 } 1813 1814 public void writeToParcel(Parcel dest, int flags) { 1815 dest.writeInt(id); 1816 dest.writeInt(stackId); 1817 ComponentName.writeToParcel(baseActivity, dest); 1818 ComponentName.writeToParcel(topActivity, dest); 1819 if (thumbnail != null) { 1820 dest.writeInt(1); 1821 thumbnail.writeToParcel(dest, 0); 1822 } else { 1823 dest.writeInt(0); 1824 } 1825 TextUtils.writeToParcel(description, dest, 1826 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1827 dest.writeInt(numActivities); 1828 dest.writeInt(numRunning); 1829 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1830 dest.writeInt(resizeMode); 1831 configuration.writeToParcel(dest, flags); 1832 } 1833 1834 public void readFromParcel(Parcel source) { 1835 id = source.readInt(); 1836 stackId = source.readInt(); 1837 baseActivity = ComponentName.readFromParcel(source); 1838 topActivity = ComponentName.readFromParcel(source); 1839 if (source.readInt() != 0) { 1840 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1841 } else { 1842 thumbnail = null; 1843 } 1844 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1845 numActivities = source.readInt(); 1846 numRunning = source.readInt(); 1847 supportsSplitScreenMultiWindow = source.readInt() != 0; 1848 resizeMode = source.readInt(); 1849 configuration.readFromParcel(source); 1850 } 1851 1852 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1853 public RunningTaskInfo createFromParcel(Parcel source) { 1854 return new RunningTaskInfo(source); 1855 } 1856 public RunningTaskInfo[] newArray(int size) { 1857 return new RunningTaskInfo[size]; 1858 } 1859 }; 1860 1861 private RunningTaskInfo(Parcel source) { 1862 readFromParcel(source); 1863 } 1864 } 1865 1866 /** 1867 * Get the list of tasks associated with the calling application. 1868 * 1869 * @return The list of tasks associated with the application making this call. 1870 * @throws SecurityException 1871 */ 1872 public List<ActivityManager.AppTask> getAppTasks() { 1873 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1874 List<IBinder> appTasks; 1875 try { 1876 appTasks = getService().getAppTasks(mContext.getPackageName()); 1877 } catch (RemoteException e) { 1878 throw e.rethrowFromSystemServer(); 1879 } 1880 int numAppTasks = appTasks.size(); 1881 for (int i = 0; i < numAppTasks; i++) { 1882 tasks.add(new AppTask(IAppTask.Stub.asInterface(appTasks.get(i)))); 1883 } 1884 return tasks; 1885 } 1886 1887 /** 1888 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1889 * with {@link #addAppTask}. 1890 */ 1891 public Size getAppTaskThumbnailSize() { 1892 synchronized (this) { 1893 ensureAppTaskThumbnailSizeLocked(); 1894 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1895 } 1896 } 1897 1898 private void ensureAppTaskThumbnailSizeLocked() { 1899 if (mAppTaskThumbnailSize == null) { 1900 try { 1901 mAppTaskThumbnailSize = getService().getAppTaskThumbnailSize(); 1902 } catch (RemoteException e) { 1903 throw e.rethrowFromSystemServer(); 1904 } 1905 } 1906 } 1907 1908 /** 1909 * Add a new {@link AppTask} for the calling application. This will create a new 1910 * recents entry that is added to the <b>end</b> of all existing recents. 1911 * 1912 * @param activity The activity that is adding the entry. This is used to help determine 1913 * the context that the new recents entry will be in. 1914 * @param intent The Intent that describes the recents entry. This is the same Intent that 1915 * you would have used to launch the activity for it. In generally you will want to set 1916 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1917 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1918 * entry will exist without an activity, so it doesn't make sense to not retain it when 1919 * its activity disappears. The given Intent here also must have an explicit ComponentName 1920 * set on it. 1921 * @param description Optional additional description information. 1922 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1923 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1924 * recreated in your process, probably in a way you don't like, before the recents entry 1925 * is added. 1926 * 1927 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 1928 * most likely cause of failure is that there is no more room for more tasks for your app. 1929 */ 1930 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 1931 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 1932 Point size; 1933 synchronized (this) { 1934 ensureAppTaskThumbnailSizeLocked(); 1935 size = mAppTaskThumbnailSize; 1936 } 1937 final int tw = thumbnail.getWidth(); 1938 final int th = thumbnail.getHeight(); 1939 if (tw != size.x || th != size.y) { 1940 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 1941 1942 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 1943 float scale; 1944 float dx = 0, dy = 0; 1945 if (tw * size.x > size.y * th) { 1946 scale = (float) size.x / (float) th; 1947 dx = (size.y - tw * scale) * 0.5f; 1948 } else { 1949 scale = (float) size.y / (float) tw; 1950 dy = (size.x - th * scale) * 0.5f; 1951 } 1952 Matrix matrix = new Matrix(); 1953 matrix.setScale(scale, scale); 1954 matrix.postTranslate((int) (dx + 0.5f), 0); 1955 1956 Canvas canvas = new Canvas(bm); 1957 canvas.drawBitmap(thumbnail, matrix, null); 1958 canvas.setBitmap(null); 1959 1960 thumbnail = bm; 1961 } 1962 if (description == null) { 1963 description = new TaskDescription(); 1964 } 1965 try { 1966 return getService().addAppTask(activity.getActivityToken(), 1967 intent, description, thumbnail); 1968 } catch (RemoteException e) { 1969 throw e.rethrowFromSystemServer(); 1970 } 1971 } 1972 1973 /** 1974 * Return a list of the tasks that are currently running, with 1975 * the most recent being first and older ones after in order. Note that 1976 * "running" does not mean any of the task's code is currently loaded or 1977 * activity -- the task may have been frozen by the system, so that it 1978 * can be restarted in its previous state when next brought to the 1979 * foreground. 1980 * 1981 * <p><b>Note: this method is only intended for debugging and presenting 1982 * task management user interfaces</b>. This should never be used for 1983 * core logic in an application, such as deciding between different 1984 * behaviors based on the information found here. Such uses are 1985 * <em>not</em> supported, and will likely break in the future. For 1986 * example, if multiple applications can be actively running at the 1987 * same time, assumptions made about the meaning of the data here for 1988 * purposes of control flow will be incorrect.</p> 1989 * 1990 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 1991 * is no longer available to third party 1992 * applications: the introduction of document-centric recents means 1993 * it can leak person information to the caller. For backwards compatibility, 1994 * it will still return a small subset of its data: at least the caller's 1995 * own tasks, and possibly some other tasks 1996 * such as home that are known to not be sensitive. 1997 * 1998 * @param maxNum The maximum number of entries to return in the list. The 1999 * actual number returned may be smaller, depending on how many tasks the 2000 * user has started. 2001 * 2002 * @return Returns a list of RunningTaskInfo records describing each of 2003 * the running tasks. 2004 */ 2005 @Deprecated 2006 public List<RunningTaskInfo> getRunningTasks(int maxNum) 2007 throws SecurityException { 2008 try { 2009 return getService().getTasks(maxNum, 0); 2010 } catch (RemoteException e) { 2011 throw e.rethrowFromSystemServer(); 2012 } 2013 } 2014 2015 /** 2016 * Completely remove the given task. 2017 * 2018 * @param taskId Identifier of the task to be removed. 2019 * @return Returns true if the given task was found and removed. 2020 * 2021 * @hide 2022 */ 2023 public boolean removeTask(int taskId) throws SecurityException { 2024 try { 2025 return getService().removeTask(taskId); 2026 } catch (RemoteException e) { 2027 throw e.rethrowFromSystemServer(); 2028 } 2029 } 2030 2031 /** 2032 * Sets the windowing mode for a specific task. Only works on tasks of type 2033 * {@link WindowConfiguration#ACTIVITY_TYPE_STANDARD} 2034 * @param taskId The id of the task to set the windowing mode for. 2035 * @param windowingMode The windowing mode to set for the task. 2036 * @param toTop If the task should be moved to the top once the windowing mode changes. 2037 * @hide 2038 */ 2039 @TestApi 2040 @RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS) 2041 public void setTaskWindowingMode(int taskId, int windowingMode, boolean toTop) 2042 throws SecurityException { 2043 try { 2044 getService().setTaskWindowingMode(taskId, windowingMode, toTop); 2045 } catch (RemoteException e) { 2046 throw e.rethrowFromSystemServer(); 2047 } 2048 } 2049 2050 /** 2051 * Resizes the input stack id to the given bounds. 2052 * @param stackId Id of the stack to resize. 2053 * @param bounds Bounds to resize the stack to or {@code null} for fullscreen. 2054 * @hide 2055 */ 2056 @TestApi 2057 @RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS) 2058 public void resizeStack(int stackId, Rect bounds) throws SecurityException { 2059 try { 2060 getService().resizeStack(stackId, bounds, false /* allowResizeInDockedMode */, 2061 false /* preserveWindows */, false /* animate */, -1 /* animationDuration */); 2062 } catch (RemoteException e) { 2063 throw e.rethrowFromSystemServer(); 2064 } 2065 } 2066 2067 /** 2068 * Removes stacks in the windowing modes from the system if they are of activity type 2069 * ACTIVITY_TYPE_STANDARD or ACTIVITY_TYPE_UNDEFINED 2070 * 2071 * @hide 2072 */ 2073 @TestApi 2074 @RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS) 2075 public void removeStacksInWindowingModes(int[] windowingModes) throws SecurityException { 2076 try { 2077 getService().removeStacksInWindowingModes(windowingModes); 2078 } catch (RemoteException e) { 2079 throw e.rethrowFromSystemServer(); 2080 } 2081 } 2082 2083 /** 2084 * Removes stack of the activity types from the system. 2085 * 2086 * @hide 2087 */ 2088 @TestApi 2089 @RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS) 2090 public void removeStacksWithActivityTypes(int[] activityTypes) throws SecurityException { 2091 try { 2092 getService().removeStacksWithActivityTypes(activityTypes); 2093 } catch (RemoteException e) { 2094 throw e.rethrowFromSystemServer(); 2095 } 2096 } 2097 2098 /** 2099 * Represents a task snapshot. 2100 * @hide 2101 */ 2102 public static class TaskSnapshot implements Parcelable { 2103 2104 private final GraphicBuffer mSnapshot; 2105 private final int mOrientation; 2106 private final Rect mContentInsets; 2107 private final boolean mReducedResolution; 2108 private final float mScale; 2109 2110 public TaskSnapshot(GraphicBuffer snapshot, int orientation, Rect contentInsets, 2111 boolean reducedResolution, float scale) { 2112 mSnapshot = snapshot; 2113 mOrientation = orientation; 2114 mContentInsets = new Rect(contentInsets); 2115 mReducedResolution = reducedResolution; 2116 mScale = scale; 2117 } 2118 2119 private TaskSnapshot(Parcel source) { 2120 mSnapshot = source.readParcelable(null /* classLoader */); 2121 mOrientation = source.readInt(); 2122 mContentInsets = source.readParcelable(null /* classLoader */); 2123 mReducedResolution = source.readBoolean(); 2124 mScale = source.readFloat(); 2125 } 2126 2127 /** 2128 * @return The graphic buffer representing the screenshot. 2129 */ 2130 public GraphicBuffer getSnapshot() { 2131 return mSnapshot; 2132 } 2133 2134 /** 2135 * @return The screen orientation the screenshot was taken in. 2136 */ 2137 public int getOrientation() { 2138 return mOrientation; 2139 } 2140 2141 /** 2142 * @return The system/content insets on the snapshot. These can be clipped off in order to 2143 * remove any areas behind system bars in the snapshot. 2144 */ 2145 public Rect getContentInsets() { 2146 return mContentInsets; 2147 } 2148 2149 /** 2150 * @return Whether this snapshot is a down-sampled version of the full resolution. 2151 */ 2152 public boolean isReducedResolution() { 2153 return mReducedResolution; 2154 } 2155 2156 /** 2157 * @return The scale this snapshot was taken in. 2158 */ 2159 public float getScale() { 2160 return mScale; 2161 } 2162 2163 @Override 2164 public int describeContents() { 2165 return 0; 2166 } 2167 2168 @Override 2169 public void writeToParcel(Parcel dest, int flags) { 2170 dest.writeParcelable(mSnapshot, 0); 2171 dest.writeInt(mOrientation); 2172 dest.writeParcelable(mContentInsets, 0); 2173 dest.writeBoolean(mReducedResolution); 2174 dest.writeFloat(mScale); 2175 } 2176 2177 @Override 2178 public String toString() { 2179 return "TaskSnapshot{mSnapshot=" + mSnapshot + " mOrientation=" + mOrientation 2180 + " mContentInsets=" + mContentInsets.toShortString() 2181 + " mReducedResolution=" + mReducedResolution + " mScale=" + mScale; 2182 } 2183 2184 public static final Creator<TaskSnapshot> CREATOR = new Creator<TaskSnapshot>() { 2185 public TaskSnapshot createFromParcel(Parcel source) { 2186 return new TaskSnapshot(source); 2187 } 2188 public TaskSnapshot[] newArray(int size) { 2189 return new TaskSnapshot[size]; 2190 } 2191 }; 2192 } 2193 2194 /** @hide */ 2195 @IntDef(flag = true, prefix = { "MOVE_TASK_" }, value = { 2196 MOVE_TASK_WITH_HOME, 2197 MOVE_TASK_NO_USER_ACTION, 2198 }) 2199 @Retention(RetentionPolicy.SOURCE) 2200 public @interface MoveTaskFlags {} 2201 2202 /** 2203 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2204 * activity along with the task, so it is positioned immediately behind 2205 * the task. 2206 */ 2207 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2208 2209 /** 2210 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2211 * user-instigated action, so the current activity will not receive a 2212 * hint that the user is leaving. 2213 */ 2214 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2215 2216 /** 2217 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2218 * with a null options argument. 2219 * 2220 * @param taskId The identifier of the task to be moved, as found in 2221 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2222 * @param flags Additional operational flags. 2223 */ 2224 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2225 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags) { 2226 moveTaskToFront(taskId, flags, null); 2227 } 2228 2229 /** 2230 * Ask that the task associated with a given task ID be moved to the 2231 * front of the stack, so it is now visible to the user. 2232 * 2233 * @param taskId The identifier of the task to be moved, as found in 2234 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2235 * @param flags Additional operational flags. 2236 * @param options Additional options for the operation, either null or 2237 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2238 * Context.startActivity(Intent, Bundle)}. 2239 */ 2240 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2241 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags, Bundle options) { 2242 try { 2243 getService().moveTaskToFront(taskId, flags, options); 2244 } catch (RemoteException e) { 2245 throw e.rethrowFromSystemServer(); 2246 } 2247 } 2248 2249 /** 2250 * Information you can retrieve about a particular Service that is 2251 * currently running in the system. 2252 */ 2253 public static class RunningServiceInfo implements Parcelable { 2254 /** 2255 * The service component. 2256 */ 2257 public ComponentName service; 2258 2259 /** 2260 * If non-zero, this is the process the service is running in. 2261 */ 2262 public int pid; 2263 2264 /** 2265 * The UID that owns this service. 2266 */ 2267 public int uid; 2268 2269 /** 2270 * The name of the process this service runs in. 2271 */ 2272 public String process; 2273 2274 /** 2275 * Set to true if the service has asked to run as a foreground process. 2276 */ 2277 public boolean foreground; 2278 2279 /** 2280 * The time when the service was first made active, either by someone 2281 * starting or binding to it. This 2282 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2283 */ 2284 public long activeSince; 2285 2286 /** 2287 * Set to true if this service has been explicitly started. 2288 */ 2289 public boolean started; 2290 2291 /** 2292 * Number of clients connected to the service. 2293 */ 2294 public int clientCount; 2295 2296 /** 2297 * Number of times the service's process has crashed while the service 2298 * is running. 2299 */ 2300 public int crashCount; 2301 2302 /** 2303 * The time when there was last activity in the service (either 2304 * explicit requests to start it or clients binding to it). This 2305 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2306 */ 2307 public long lastActivityTime; 2308 2309 /** 2310 * If non-zero, this service is not currently running, but scheduled to 2311 * restart at the given time. 2312 */ 2313 public long restarting; 2314 2315 /** 2316 * Bit for {@link #flags}: set if this service has been 2317 * explicitly started. 2318 */ 2319 public static final int FLAG_STARTED = 1<<0; 2320 2321 /** 2322 * Bit for {@link #flags}: set if the service has asked to 2323 * run as a foreground process. 2324 */ 2325 public static final int FLAG_FOREGROUND = 1<<1; 2326 2327 /** 2328 * Bit for {@link #flags}: set if the service is running in a 2329 * core system process. 2330 */ 2331 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2332 2333 /** 2334 * Bit for {@link #flags}: set if the service is running in a 2335 * persistent process. 2336 */ 2337 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2338 2339 /** 2340 * Running flags. 2341 */ 2342 public int flags; 2343 2344 /** 2345 * For special services that are bound to by system code, this is 2346 * the package that holds the binding. 2347 */ 2348 public String clientPackage; 2349 2350 /** 2351 * For special services that are bound to by system code, this is 2352 * a string resource providing a user-visible label for who the 2353 * client is. 2354 */ 2355 public int clientLabel; 2356 2357 public RunningServiceInfo() { 2358 } 2359 2360 public int describeContents() { 2361 return 0; 2362 } 2363 2364 public void writeToParcel(Parcel dest, int flags) { 2365 ComponentName.writeToParcel(service, dest); 2366 dest.writeInt(pid); 2367 dest.writeInt(uid); 2368 dest.writeString(process); 2369 dest.writeInt(foreground ? 1 : 0); 2370 dest.writeLong(activeSince); 2371 dest.writeInt(started ? 1 : 0); 2372 dest.writeInt(clientCount); 2373 dest.writeInt(crashCount); 2374 dest.writeLong(lastActivityTime); 2375 dest.writeLong(restarting); 2376 dest.writeInt(this.flags); 2377 dest.writeString(clientPackage); 2378 dest.writeInt(clientLabel); 2379 } 2380 2381 public void readFromParcel(Parcel source) { 2382 service = ComponentName.readFromParcel(source); 2383 pid = source.readInt(); 2384 uid = source.readInt(); 2385 process = source.readString(); 2386 foreground = source.readInt() != 0; 2387 activeSince = source.readLong(); 2388 started = source.readInt() != 0; 2389 clientCount = source.readInt(); 2390 crashCount = source.readInt(); 2391 lastActivityTime = source.readLong(); 2392 restarting = source.readLong(); 2393 flags = source.readInt(); 2394 clientPackage = source.readString(); 2395 clientLabel = source.readInt(); 2396 } 2397 2398 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2399 public RunningServiceInfo createFromParcel(Parcel source) { 2400 return new RunningServiceInfo(source); 2401 } 2402 public RunningServiceInfo[] newArray(int size) { 2403 return new RunningServiceInfo[size]; 2404 } 2405 }; 2406 2407 private RunningServiceInfo(Parcel source) { 2408 readFromParcel(source); 2409 } 2410 } 2411 2412 /** 2413 * Return a list of the services that are currently running. 2414 * 2415 * <p><b>Note: this method is only intended for debugging or implementing 2416 * service management type user interfaces.</b></p> 2417 * 2418 * @deprecated As of {@link android.os.Build.VERSION_CODES#O}, this method 2419 * is no longer available to third party applications. For backwards compatibility, 2420 * it will still return the caller's own services. 2421 * 2422 * @param maxNum The maximum number of entries to return in the list. The 2423 * actual number returned may be smaller, depending on how many services 2424 * are running. 2425 * 2426 * @return Returns a list of RunningServiceInfo records describing each of 2427 * the running tasks. 2428 */ 2429 @Deprecated 2430 public List<RunningServiceInfo> getRunningServices(int maxNum) 2431 throws SecurityException { 2432 try { 2433 return getService() 2434 .getServices(maxNum, 0); 2435 } catch (RemoteException e) { 2436 throw e.rethrowFromSystemServer(); 2437 } 2438 } 2439 2440 /** 2441 * Returns a PendingIntent you can start to show a control panel for the 2442 * given running service. If the service does not have a control panel, 2443 * null is returned. 2444 */ 2445 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2446 throws SecurityException { 2447 try { 2448 return getService() 2449 .getRunningServiceControlPanel(service); 2450 } catch (RemoteException e) { 2451 throw e.rethrowFromSystemServer(); 2452 } 2453 } 2454 2455 /** 2456 * Information you can retrieve about the available memory through 2457 * {@link ActivityManager#getMemoryInfo}. 2458 */ 2459 public static class MemoryInfo implements Parcelable { 2460 /** 2461 * The available memory on the system. This number should not 2462 * be considered absolute: due to the nature of the kernel, a significant 2463 * portion of this memory is actually in use and needed for the overall 2464 * system to run well. 2465 */ 2466 public long availMem; 2467 2468 /** 2469 * The total memory accessible by the kernel. This is basically the 2470 * RAM size of the device, not including below-kernel fixed allocations 2471 * like DMA buffers, RAM for the baseband CPU, etc. 2472 */ 2473 public long totalMem; 2474 2475 /** 2476 * The threshold of {@link #availMem} at which we consider memory to be 2477 * low and start killing background services and other non-extraneous 2478 * processes. 2479 */ 2480 public long threshold; 2481 2482 /** 2483 * Set to true if the system considers itself to currently be in a low 2484 * memory situation. 2485 */ 2486 public boolean lowMemory; 2487 2488 /** @hide */ 2489 public long hiddenAppThreshold; 2490 /** @hide */ 2491 public long secondaryServerThreshold; 2492 /** @hide */ 2493 public long visibleAppThreshold; 2494 /** @hide */ 2495 public long foregroundAppThreshold; 2496 2497 public MemoryInfo() { 2498 } 2499 2500 public int describeContents() { 2501 return 0; 2502 } 2503 2504 public void writeToParcel(Parcel dest, int flags) { 2505 dest.writeLong(availMem); 2506 dest.writeLong(totalMem); 2507 dest.writeLong(threshold); 2508 dest.writeInt(lowMemory ? 1 : 0); 2509 dest.writeLong(hiddenAppThreshold); 2510 dest.writeLong(secondaryServerThreshold); 2511 dest.writeLong(visibleAppThreshold); 2512 dest.writeLong(foregroundAppThreshold); 2513 } 2514 2515 public void readFromParcel(Parcel source) { 2516 availMem = source.readLong(); 2517 totalMem = source.readLong(); 2518 threshold = source.readLong(); 2519 lowMemory = source.readInt() != 0; 2520 hiddenAppThreshold = source.readLong(); 2521 secondaryServerThreshold = source.readLong(); 2522 visibleAppThreshold = source.readLong(); 2523 foregroundAppThreshold = source.readLong(); 2524 } 2525 2526 public static final Creator<MemoryInfo> CREATOR 2527 = new Creator<MemoryInfo>() { 2528 public MemoryInfo createFromParcel(Parcel source) { 2529 return new MemoryInfo(source); 2530 } 2531 public MemoryInfo[] newArray(int size) { 2532 return new MemoryInfo[size]; 2533 } 2534 }; 2535 2536 private MemoryInfo(Parcel source) { 2537 readFromParcel(source); 2538 } 2539 } 2540 2541 /** 2542 * Return general information about the memory state of the system. This 2543 * can be used to help decide how to manage your own memory, though note 2544 * that polling is not recommended and 2545 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2546 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2547 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2548 * level of your process as needed, which gives a better hint for how to 2549 * manage its memory. 2550 */ 2551 public void getMemoryInfo(MemoryInfo outInfo) { 2552 try { 2553 getService().getMemoryInfo(outInfo); 2554 } catch (RemoteException e) { 2555 throw e.rethrowFromSystemServer(); 2556 } 2557 } 2558 2559 /** 2560 * Information you can retrieve about an ActivityStack in the system. 2561 * @hide 2562 */ 2563 public static class StackInfo implements Parcelable { 2564 public int stackId; 2565 public Rect bounds = new Rect(); 2566 public int[] taskIds; 2567 public String[] taskNames; 2568 public Rect[] taskBounds; 2569 public int[] taskUserIds; 2570 public ComponentName topActivity; 2571 public int displayId; 2572 public int userId; 2573 public boolean visible; 2574 // Index of the stack in the display's stack list, can be used for comparison of stack order 2575 public int position; 2576 /** 2577 * The full configuration the stack is currently running in. 2578 * @hide 2579 */ 2580 public Configuration configuration = new Configuration(); 2581 2582 @Override 2583 public int describeContents() { 2584 return 0; 2585 } 2586 2587 @Override 2588 public void writeToParcel(Parcel dest, int flags) { 2589 dest.writeInt(stackId); 2590 dest.writeInt(bounds.left); 2591 dest.writeInt(bounds.top); 2592 dest.writeInt(bounds.right); 2593 dest.writeInt(bounds.bottom); 2594 dest.writeIntArray(taskIds); 2595 dest.writeStringArray(taskNames); 2596 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2597 dest.writeInt(boundsCount); 2598 for (int i = 0; i < boundsCount; i++) { 2599 dest.writeInt(taskBounds[i].left); 2600 dest.writeInt(taskBounds[i].top); 2601 dest.writeInt(taskBounds[i].right); 2602 dest.writeInt(taskBounds[i].bottom); 2603 } 2604 dest.writeIntArray(taskUserIds); 2605 dest.writeInt(displayId); 2606 dest.writeInt(userId); 2607 dest.writeInt(visible ? 1 : 0); 2608 dest.writeInt(position); 2609 if (topActivity != null) { 2610 dest.writeInt(1); 2611 topActivity.writeToParcel(dest, 0); 2612 } else { 2613 dest.writeInt(0); 2614 } 2615 configuration.writeToParcel(dest, flags); 2616 } 2617 2618 public void readFromParcel(Parcel source) { 2619 stackId = source.readInt(); 2620 bounds = new Rect( 2621 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2622 taskIds = source.createIntArray(); 2623 taskNames = source.createStringArray(); 2624 final int boundsCount = source.readInt(); 2625 if (boundsCount > 0) { 2626 taskBounds = new Rect[boundsCount]; 2627 for (int i = 0; i < boundsCount; i++) { 2628 taskBounds[i] = new Rect(); 2629 taskBounds[i].set( 2630 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2631 } 2632 } else { 2633 taskBounds = null; 2634 } 2635 taskUserIds = source.createIntArray(); 2636 displayId = source.readInt(); 2637 userId = source.readInt(); 2638 visible = source.readInt() > 0; 2639 position = source.readInt(); 2640 if (source.readInt() > 0) { 2641 topActivity = ComponentName.readFromParcel(source); 2642 } 2643 configuration.readFromParcel(source); 2644 } 2645 2646 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2647 @Override 2648 public StackInfo createFromParcel(Parcel source) { 2649 return new StackInfo(source); 2650 } 2651 @Override 2652 public StackInfo[] newArray(int size) { 2653 return new StackInfo[size]; 2654 } 2655 }; 2656 2657 public StackInfo() { 2658 } 2659 2660 private StackInfo(Parcel source) { 2661 readFromParcel(source); 2662 } 2663 2664 public String toString(String prefix) { 2665 StringBuilder sb = new StringBuilder(256); 2666 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2667 sb.append(" bounds="); sb.append(bounds.toShortString()); 2668 sb.append(" displayId="); sb.append(displayId); 2669 sb.append(" userId="); sb.append(userId); 2670 sb.append("\n"); 2671 sb.append(" configuration="); sb.append(configuration); 2672 sb.append("\n"); 2673 prefix = prefix + " "; 2674 for (int i = 0; i < taskIds.length; ++i) { 2675 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2676 sb.append(": "); sb.append(taskNames[i]); 2677 if (taskBounds != null) { 2678 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2679 } 2680 sb.append(" userId=").append(taskUserIds[i]); 2681 sb.append(" visible=").append(visible); 2682 if (topActivity != null) { 2683 sb.append(" topActivity=").append(topActivity); 2684 } 2685 sb.append("\n"); 2686 } 2687 return sb.toString(); 2688 } 2689 2690 @Override 2691 public String toString() { 2692 return toString(""); 2693 } 2694 } 2695 2696 /** 2697 * @hide 2698 */ 2699 @RequiresPermission(anyOf={Manifest.permission.CLEAR_APP_USER_DATA, 2700 Manifest.permission.ACCESS_INSTANT_APPS}) 2701 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2702 try { 2703 return getService().clearApplicationUserData(packageName, 2704 observer, UserHandle.myUserId()); 2705 } catch (RemoteException e) { 2706 throw e.rethrowFromSystemServer(); 2707 } 2708 } 2709 2710 /** 2711 * Permits an application to erase its own data from disk. This is equivalent to 2712 * the user choosing to clear the app's data from within the device settings UI. It 2713 * erases all dynamic data associated with the app -- its private data and data in its 2714 * private area on external storage -- but does not remove the installed application 2715 * itself, nor any OBB files. It also revokes all runtime permissions that the app has acquired, 2716 * clears all notifications and removes all Uri grants related to this application. 2717 * 2718 * @return {@code true} if the application successfully requested that the application's 2719 * data be erased; {@code false} otherwise. 2720 */ 2721 public boolean clearApplicationUserData() { 2722 return clearApplicationUserData(mContext.getPackageName(), null); 2723 } 2724 2725 2726 /** 2727 * Permits an application to get the persistent URI permissions granted to another. 2728 * 2729 * <p>Typically called by Settings. 2730 * 2731 * @param packageName application to look for the granted permissions 2732 * @return list of granted URI permissions 2733 * 2734 * @hide 2735 */ 2736 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2737 try { 2738 return getService().getGrantedUriPermissions(packageName, 2739 UserHandle.myUserId()); 2740 } catch (RemoteException e) { 2741 throw e.rethrowFromSystemServer(); 2742 } 2743 } 2744 2745 /** 2746 * Permits an application to clear the persistent URI permissions granted to another. 2747 * 2748 * <p>Typically called by Settings. 2749 * 2750 * @param packageName application to clear its granted permissions 2751 * 2752 * @hide 2753 */ 2754 public void clearGrantedUriPermissions(String packageName) { 2755 try { 2756 getService().clearGrantedUriPermissions(packageName, 2757 UserHandle.myUserId()); 2758 } catch (RemoteException e) { 2759 throw e.rethrowFromSystemServer(); 2760 } 2761 } 2762 2763 /** 2764 * Information you can retrieve about any processes that are in an error condition. 2765 */ 2766 public static class ProcessErrorStateInfo implements Parcelable { 2767 /** 2768 * Condition codes 2769 */ 2770 public static final int NO_ERROR = 0; 2771 public static final int CRASHED = 1; 2772 public static final int NOT_RESPONDING = 2; 2773 2774 /** 2775 * The condition that the process is in. 2776 */ 2777 public int condition; 2778 2779 /** 2780 * The process name in which the crash or error occurred. 2781 */ 2782 public String processName; 2783 2784 /** 2785 * The pid of this process; 0 if none 2786 */ 2787 public int pid; 2788 2789 /** 2790 * The kernel user-ID that has been assigned to this process; 2791 * currently this is not a unique ID (multiple applications can have 2792 * the same uid). 2793 */ 2794 public int uid; 2795 2796 /** 2797 * The activity name associated with the error, if known. May be null. 2798 */ 2799 public String tag; 2800 2801 /** 2802 * A short message describing the error condition. 2803 */ 2804 public String shortMsg; 2805 2806 /** 2807 * A long message describing the error condition. 2808 */ 2809 public String longMsg; 2810 2811 /** 2812 * The stack trace where the error originated. May be null. 2813 */ 2814 public String stackTrace; 2815 2816 /** 2817 * to be deprecated: This value will always be null. 2818 */ 2819 public byte[] crashData = null; 2820 2821 public ProcessErrorStateInfo() { 2822 } 2823 2824 @Override 2825 public int describeContents() { 2826 return 0; 2827 } 2828 2829 @Override 2830 public void writeToParcel(Parcel dest, int flags) { 2831 dest.writeInt(condition); 2832 dest.writeString(processName); 2833 dest.writeInt(pid); 2834 dest.writeInt(uid); 2835 dest.writeString(tag); 2836 dest.writeString(shortMsg); 2837 dest.writeString(longMsg); 2838 dest.writeString(stackTrace); 2839 } 2840 2841 public void readFromParcel(Parcel source) { 2842 condition = source.readInt(); 2843 processName = source.readString(); 2844 pid = source.readInt(); 2845 uid = source.readInt(); 2846 tag = source.readString(); 2847 shortMsg = source.readString(); 2848 longMsg = source.readString(); 2849 stackTrace = source.readString(); 2850 } 2851 2852 public static final Creator<ProcessErrorStateInfo> CREATOR = 2853 new Creator<ProcessErrorStateInfo>() { 2854 public ProcessErrorStateInfo createFromParcel(Parcel source) { 2855 return new ProcessErrorStateInfo(source); 2856 } 2857 public ProcessErrorStateInfo[] newArray(int size) { 2858 return new ProcessErrorStateInfo[size]; 2859 } 2860 }; 2861 2862 private ProcessErrorStateInfo(Parcel source) { 2863 readFromParcel(source); 2864 } 2865 } 2866 2867 /** 2868 * Returns a list of any processes that are currently in an error condition. The result 2869 * will be null if all processes are running properly at this time. 2870 * 2871 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 2872 * current error conditions (it will not return an empty list). This list ordering is not 2873 * specified. 2874 */ 2875 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 2876 try { 2877 return getService().getProcessesInErrorState(); 2878 } catch (RemoteException e) { 2879 throw e.rethrowFromSystemServer(); 2880 } 2881 } 2882 2883 /** 2884 * Information you can retrieve about a running process. 2885 */ 2886 public static class RunningAppProcessInfo implements Parcelable { 2887 /** 2888 * The name of the process that this object is associated with 2889 */ 2890 public String processName; 2891 2892 /** 2893 * The pid of this process; 0 if none 2894 */ 2895 public int pid; 2896 2897 /** 2898 * The user id of this process. 2899 */ 2900 public int uid; 2901 2902 /** 2903 * All packages that have been loaded into the process. 2904 */ 2905 public String pkgList[]; 2906 2907 /** 2908 * Constant for {@link #flags}: this is an app that is unable to 2909 * correctly save its state when going to the background, 2910 * so it can not be killed while in the background. 2911 * @hide 2912 */ 2913 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 2914 2915 /** 2916 * Constant for {@link #flags}: this process is associated with a 2917 * persistent system app. 2918 * @hide 2919 */ 2920 public static final int FLAG_PERSISTENT = 1<<1; 2921 2922 /** 2923 * Constant for {@link #flags}: this process is associated with a 2924 * persistent system app. 2925 * @hide 2926 */ 2927 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 2928 2929 /** 2930 * Flags of information. May be any of 2931 * {@link #FLAG_CANT_SAVE_STATE}. 2932 * @hide 2933 */ 2934 public int flags; 2935 2936 /** 2937 * Last memory trim level reported to the process: corresponds to 2938 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2939 * ComponentCallbacks2.onTrimMemory(int)}. 2940 */ 2941 public int lastTrimLevel; 2942 2943 /** @hide */ 2944 @IntDef(prefix = { "IMPORTANCE_" }, value = { 2945 IMPORTANCE_FOREGROUND, 2946 IMPORTANCE_FOREGROUND_SERVICE, 2947 IMPORTANCE_TOP_SLEEPING, 2948 IMPORTANCE_VISIBLE, 2949 IMPORTANCE_PERCEPTIBLE, 2950 IMPORTANCE_CANT_SAVE_STATE, 2951 IMPORTANCE_SERVICE, 2952 IMPORTANCE_CACHED, 2953 IMPORTANCE_GONE, 2954 }) 2955 @Retention(RetentionPolicy.SOURCE) 2956 public @interface Importance {} 2957 2958 /** 2959 * Constant for {@link #importance}: This process is running the 2960 * foreground UI; that is, it is the thing currently at the top of the screen 2961 * that the user is interacting with. 2962 */ 2963 public static final int IMPORTANCE_FOREGROUND = 100; 2964 2965 /** 2966 * Constant for {@link #importance}: This process is running a foreground 2967 * service, for example to perform music playback even while the user is 2968 * not immediately in the app. This generally indicates that the process 2969 * is doing something the user actively cares about. 2970 */ 2971 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 2972 2973 /** 2974 * Constant for {@link #importance}: This process is running the foreground 2975 * UI, but the device is asleep so it is not visible to the user. This means 2976 * the user is not really aware of the process, because they can not see or 2977 * interact with it, but it is quite important because it what they expect to 2978 * return to once unlocking the device. 2979 */ 2980 public static final int IMPORTANCE_TOP_SLEEPING = 150; 2981 2982 /** 2983 * Constant for {@link #importance}: This process is running something 2984 * that is actively visible to the user, though not in the immediate 2985 * foreground. This may be running a window that is behind the current 2986 * foreground (so paused and with its state saved, not interacting with 2987 * the user, but visible to them to some degree); it may also be running 2988 * other services under the system's control that it inconsiders important. 2989 */ 2990 public static final int IMPORTANCE_VISIBLE = 200; 2991 2992 /** 2993 * Constant for {@link #importance}: {@link #IMPORTANCE_PERCEPTIBLE} had this wrong value 2994 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 2995 * the value of {@link #IMPORTANCE_PERCEPTIBLE} has been fixed. 2996 * 2997 * <p>The system will return this value instead of {@link #IMPORTANCE_PERCEPTIBLE} 2998 * on Android versions below {@link Build.VERSION_CODES#O}. 2999 * 3000 * <p>On Android version {@link Build.VERSION_CODES#O} and later, this value will still be 3001 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 3002 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 3003 * the correct value {@link #IMPORTANCE_PERCEPTIBLE} will be returned. 3004 */ 3005 public static final int IMPORTANCE_PERCEPTIBLE_PRE_26 = 130; 3006 3007 /** 3008 * Constant for {@link #importance}: This process is not something the user 3009 * is directly aware of, but is otherwise perceptible to them to some degree. 3010 */ 3011 public static final int IMPORTANCE_PERCEPTIBLE = 230; 3012 3013 /** 3014 * Constant for {@link #importance}: {@link #IMPORTANCE_CANT_SAVE_STATE} had 3015 * this wrong value 3016 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3017 * the value of {@link #IMPORTANCE_CANT_SAVE_STATE} has been fixed. 3018 * 3019 * <p>The system will return this value instead of {@link #IMPORTANCE_CANT_SAVE_STATE} 3020 * on Android versions below {@link Build.VERSION_CODES#O}. 3021 * 3022 * <p>On Android version {@link Build.VERSION_CODES#O} after, this value will still be 3023 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 3024 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 3025 * the correct value {@link #IMPORTANCE_CANT_SAVE_STATE} will be returned. 3026 * 3027 * @hide 3028 */ 3029 public static final int IMPORTANCE_CANT_SAVE_STATE_PRE_26 = 170; 3030 3031 /** 3032 * Constant for {@link #importance}: This process is running an 3033 * application that can not save its state, and thus can't be killed 3034 * while in the background. 3035 * @hide 3036 */ 3037 public static final int IMPORTANCE_CANT_SAVE_STATE= 270; 3038 3039 /** 3040 * Constant for {@link #importance}: This process is contains services 3041 * that should remain running. These are background services apps have 3042 * started, not something the user is aware of, so they may be killed by 3043 * the system relatively freely (though it is generally desired that they 3044 * stay running as long as they want to). 3045 */ 3046 public static final int IMPORTANCE_SERVICE = 300; 3047 3048 /** 3049 * Constant for {@link #importance}: This process process contains 3050 * cached code that is expendable, not actively running any app components 3051 * we care about. 3052 */ 3053 public static final int IMPORTANCE_CACHED = 400; 3054 3055 /** 3056 * @deprecated Renamed to {@link #IMPORTANCE_CACHED}. 3057 */ 3058 public static final int IMPORTANCE_BACKGROUND = IMPORTANCE_CACHED; 3059 3060 /** 3061 * Constant for {@link #importance}: This process is empty of any 3062 * actively running code. 3063 * @deprecated This value is no longer reported, use {@link #IMPORTANCE_CACHED} instead. 3064 */ 3065 @Deprecated 3066 public static final int IMPORTANCE_EMPTY = 500; 3067 3068 /** 3069 * Constant for {@link #importance}: This process does not exist. 3070 */ 3071 public static final int IMPORTANCE_GONE = 1000; 3072 3073 /** 3074 * Convert a proc state to the correspondent IMPORTANCE_* constant. If the return value 3075 * will be passed to a client, use {@link #procStateToImportanceForClient}. 3076 * @hide 3077 */ 3078 public static @Importance int procStateToImportance(int procState) { 3079 if (procState == PROCESS_STATE_NONEXISTENT) { 3080 return IMPORTANCE_GONE; 3081 } else if (procState >= PROCESS_STATE_HOME) { 3082 return IMPORTANCE_CACHED; 3083 } else if (procState >= PROCESS_STATE_SERVICE) { 3084 return IMPORTANCE_SERVICE; 3085 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 3086 return IMPORTANCE_CANT_SAVE_STATE; 3087 } else if (procState >= PROCESS_STATE_TRANSIENT_BACKGROUND) { 3088 return IMPORTANCE_PERCEPTIBLE; 3089 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 3090 return IMPORTANCE_VISIBLE; 3091 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 3092 return IMPORTANCE_TOP_SLEEPING; 3093 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 3094 return IMPORTANCE_FOREGROUND_SERVICE; 3095 } else { 3096 return IMPORTANCE_FOREGROUND; 3097 } 3098 } 3099 3100 /** 3101 * Convert a proc state to the correspondent IMPORTANCE_* constant for a client represented 3102 * by a given {@link Context}, with converting {@link #IMPORTANCE_PERCEPTIBLE} 3103 * and {@link #IMPORTANCE_CANT_SAVE_STATE} to the corresponding "wrong" value if the 3104 * client's target SDK < {@link VERSION_CODES#O}. 3105 * @hide 3106 */ 3107 public static @Importance int procStateToImportanceForClient(int procState, 3108 Context clientContext) { 3109 return procStateToImportanceForTargetSdk(procState, 3110 clientContext.getApplicationInfo().targetSdkVersion); 3111 } 3112 3113 /** 3114 * See {@link #procStateToImportanceForClient}. 3115 * @hide 3116 */ 3117 public static @Importance int procStateToImportanceForTargetSdk(int procState, 3118 int targetSdkVersion) { 3119 final int importance = procStateToImportance(procState); 3120 3121 // For pre O apps, convert to the old, wrong values. 3122 if (targetSdkVersion < VERSION_CODES.O) { 3123 switch (importance) { 3124 case IMPORTANCE_PERCEPTIBLE: 3125 return IMPORTANCE_PERCEPTIBLE_PRE_26; 3126 case IMPORTANCE_CANT_SAVE_STATE: 3127 return IMPORTANCE_CANT_SAVE_STATE_PRE_26; 3128 } 3129 } 3130 return importance; 3131 } 3132 3133 /** @hide */ 3134 public static int importanceToProcState(@Importance int importance) { 3135 if (importance == IMPORTANCE_GONE) { 3136 return PROCESS_STATE_NONEXISTENT; 3137 } else if (importance >= IMPORTANCE_CACHED) { 3138 return PROCESS_STATE_HOME; 3139 } else if (importance >= IMPORTANCE_SERVICE) { 3140 return PROCESS_STATE_SERVICE; 3141 } else if (importance > IMPORTANCE_CANT_SAVE_STATE) { 3142 return PROCESS_STATE_HEAVY_WEIGHT; 3143 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 3144 return PROCESS_STATE_TRANSIENT_BACKGROUND; 3145 } else if (importance >= IMPORTANCE_VISIBLE) { 3146 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3147 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 3148 return PROCESS_STATE_TOP_SLEEPING; 3149 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 3150 return PROCESS_STATE_FOREGROUND_SERVICE; 3151 } else { 3152 return PROCESS_STATE_BOUND_FOREGROUND_SERVICE; 3153 } 3154 } 3155 3156 /** 3157 * The relative importance level that the system places on this process. 3158 * These constants are numbered so that "more important" values are 3159 * always smaller than "less important" values. 3160 */ 3161 public @Importance int importance; 3162 3163 /** 3164 * An additional ordering within a particular {@link #importance} 3165 * category, providing finer-grained information about the relative 3166 * utility of processes within a category. This number means nothing 3167 * except that a smaller values are more recently used (and thus 3168 * more important). Currently an LRU value is only maintained for 3169 * the {@link #IMPORTANCE_CACHED} category, though others may 3170 * be maintained in the future. 3171 */ 3172 public int lru; 3173 3174 /** 3175 * Constant for {@link #importanceReasonCode}: nothing special has 3176 * been specified for the reason for this level. 3177 */ 3178 public static final int REASON_UNKNOWN = 0; 3179 3180 /** 3181 * Constant for {@link #importanceReasonCode}: one of the application's 3182 * content providers is being used by another process. The pid of 3183 * the client process is in {@link #importanceReasonPid} and the 3184 * target provider in this process is in 3185 * {@link #importanceReasonComponent}. 3186 */ 3187 public static final int REASON_PROVIDER_IN_USE = 1; 3188 3189 /** 3190 * Constant for {@link #importanceReasonCode}: one of the application's 3191 * content providers is being used by another process. The pid of 3192 * the client process is in {@link #importanceReasonPid} and the 3193 * target provider in this process is in 3194 * {@link #importanceReasonComponent}. 3195 */ 3196 public static final int REASON_SERVICE_IN_USE = 2; 3197 3198 /** 3199 * The reason for {@link #importance}, if any. 3200 */ 3201 public int importanceReasonCode; 3202 3203 /** 3204 * For the specified values of {@link #importanceReasonCode}, this 3205 * is the process ID of the other process that is a client of this 3206 * process. This will be 0 if no other process is using this one. 3207 */ 3208 public int importanceReasonPid; 3209 3210 /** 3211 * For the specified values of {@link #importanceReasonCode}, this 3212 * is the name of the component that is being used in this process. 3213 */ 3214 public ComponentName importanceReasonComponent; 3215 3216 /** 3217 * When {@link #importanceReasonPid} is non-0, this is the importance 3218 * of the other pid. @hide 3219 */ 3220 public int importanceReasonImportance; 3221 3222 /** 3223 * Current process state, as per PROCESS_STATE_* constants. 3224 * @hide 3225 */ 3226 public int processState; 3227 3228 public RunningAppProcessInfo() { 3229 importance = IMPORTANCE_FOREGROUND; 3230 importanceReasonCode = REASON_UNKNOWN; 3231 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 3232 } 3233 3234 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 3235 processName = pProcessName; 3236 pid = pPid; 3237 pkgList = pArr; 3238 } 3239 3240 public int describeContents() { 3241 return 0; 3242 } 3243 3244 public void writeToParcel(Parcel dest, int flags) { 3245 dest.writeString(processName); 3246 dest.writeInt(pid); 3247 dest.writeInt(uid); 3248 dest.writeStringArray(pkgList); 3249 dest.writeInt(this.flags); 3250 dest.writeInt(lastTrimLevel); 3251 dest.writeInt(importance); 3252 dest.writeInt(lru); 3253 dest.writeInt(importanceReasonCode); 3254 dest.writeInt(importanceReasonPid); 3255 ComponentName.writeToParcel(importanceReasonComponent, dest); 3256 dest.writeInt(importanceReasonImportance); 3257 dest.writeInt(processState); 3258 } 3259 3260 public void readFromParcel(Parcel source) { 3261 processName = source.readString(); 3262 pid = source.readInt(); 3263 uid = source.readInt(); 3264 pkgList = source.readStringArray(); 3265 flags = source.readInt(); 3266 lastTrimLevel = source.readInt(); 3267 importance = source.readInt(); 3268 lru = source.readInt(); 3269 importanceReasonCode = source.readInt(); 3270 importanceReasonPid = source.readInt(); 3271 importanceReasonComponent = ComponentName.readFromParcel(source); 3272 importanceReasonImportance = source.readInt(); 3273 processState = source.readInt(); 3274 } 3275 3276 public static final Creator<RunningAppProcessInfo> CREATOR = 3277 new Creator<RunningAppProcessInfo>() { 3278 public RunningAppProcessInfo createFromParcel(Parcel source) { 3279 return new RunningAppProcessInfo(source); 3280 } 3281 public RunningAppProcessInfo[] newArray(int size) { 3282 return new RunningAppProcessInfo[size]; 3283 } 3284 }; 3285 3286 private RunningAppProcessInfo(Parcel source) { 3287 readFromParcel(source); 3288 } 3289 } 3290 3291 /** 3292 * Returns a list of application processes installed on external media 3293 * that are running on the device. 3294 * 3295 * <p><b>Note: this method is only intended for debugging or building 3296 * a user-facing process management UI.</b></p> 3297 * 3298 * @return Returns a list of ApplicationInfo records, or null if none 3299 * This list ordering is not specified. 3300 * @hide 3301 */ 3302 public List<ApplicationInfo> getRunningExternalApplications() { 3303 try { 3304 return getService().getRunningExternalApplications(); 3305 } catch (RemoteException e) { 3306 throw e.rethrowFromSystemServer(); 3307 } 3308 } 3309 3310 /** 3311 * Sets the memory trim mode for a process and schedules a memory trim operation. 3312 * 3313 * <p><b>Note: this method is only intended for testing framework.</b></p> 3314 * 3315 * @return Returns true if successful. 3316 * @hide 3317 */ 3318 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3319 try { 3320 return getService().setProcessMemoryTrimLevel(process, userId, 3321 level); 3322 } catch (RemoteException e) { 3323 throw e.rethrowFromSystemServer(); 3324 } 3325 } 3326 3327 /** 3328 * Returns a list of application processes that are running on the device. 3329 * 3330 * <p><b>Note: this method is only intended for debugging or building 3331 * a user-facing process management UI.</b></p> 3332 * 3333 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3334 * running processes (it will not return an empty list). This list ordering is not 3335 * specified. 3336 */ 3337 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3338 try { 3339 return getService().getRunningAppProcesses(); 3340 } catch (RemoteException e) { 3341 throw e.rethrowFromSystemServer(); 3342 } 3343 } 3344 3345 /** 3346 * Return the importance of a given package name, based on the processes that are 3347 * currently running. The return value is one of the importance constants defined 3348 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3349 * processes that this package has code running inside of. If there are no processes 3350 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3351 * @hide 3352 */ 3353 @SystemApi @TestApi 3354 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3355 public @RunningAppProcessInfo.Importance int getPackageImportance(String packageName) { 3356 try { 3357 int procState = getService().getPackageProcessState(packageName, 3358 mContext.getOpPackageName()); 3359 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3360 } catch (RemoteException e) { 3361 throw e.rethrowFromSystemServer(); 3362 } 3363 } 3364 3365 /** 3366 * Return the importance of a given uid, based on the processes that are 3367 * currently running. The return value is one of the importance constants defined 3368 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3369 * processes that this uid has running. If there are no processes 3370 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3371 * @hide 3372 */ 3373 @SystemApi @TestApi 3374 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3375 public @RunningAppProcessInfo.Importance int getUidImportance(int uid) { 3376 try { 3377 int procState = getService().getUidProcessState(uid, 3378 mContext.getOpPackageName()); 3379 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3380 } catch (RemoteException e) { 3381 throw e.rethrowFromSystemServer(); 3382 } 3383 } 3384 3385 /** 3386 * Callback to get reports about changes to the importance of a uid. Use with 3387 * {@link #addOnUidImportanceListener}. 3388 * @hide 3389 */ 3390 @SystemApi @TestApi 3391 public interface OnUidImportanceListener { 3392 /** 3393 * The importance if a given uid has changed. Will be one of the importance 3394 * values in {@link RunningAppProcessInfo}; 3395 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3396 * when the uid is no longer running at all. This callback will happen on a thread 3397 * from a thread pool, not the main UI thread. 3398 * @param uid The uid whose importance has changed. 3399 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3400 */ 3401 void onUidImportance(int uid, @RunningAppProcessInfo.Importance int importance); 3402 } 3403 3404 /** 3405 * Start monitoring changes to the imoportance of uids running in the system. 3406 * @param listener The listener callback that will receive change reports. 3407 * @param importanceCutpoint The level of importance in which the caller is interested 3408 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3409 * is used here, you will receive a call each time a uids importance transitions between 3410 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3411 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3412 * 3413 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3414 * permission to use this feature.</p> 3415 * 3416 * @throws IllegalArgumentException If the listener is already registered. 3417 * @throws SecurityException If the caller does not hold 3418 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3419 * @hide 3420 */ 3421 @SystemApi @TestApi 3422 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3423 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3424 @RunningAppProcessInfo.Importance int importanceCutpoint) { 3425 synchronized (this) { 3426 if (mImportanceListeners.containsKey(listener)) { 3427 throw new IllegalArgumentException("Listener already registered: " + listener); 3428 } 3429 // TODO: implement the cut point in the system process to avoid IPCs. 3430 UidObserver observer = new UidObserver(listener, mContext); 3431 try { 3432 getService().registerUidObserver(observer, 3433 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3434 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3435 mContext.getOpPackageName()); 3436 } catch (RemoteException e) { 3437 throw e.rethrowFromSystemServer(); 3438 } 3439 mImportanceListeners.put(listener, observer); 3440 } 3441 } 3442 3443 /** 3444 * Remove an importance listener that was previously registered with 3445 * {@link #addOnUidImportanceListener}. 3446 * 3447 * @throws IllegalArgumentException If the listener is not registered. 3448 * @hide 3449 */ 3450 @SystemApi @TestApi 3451 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3452 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3453 synchronized (this) { 3454 UidObserver observer = mImportanceListeners.remove(listener); 3455 if (observer == null) { 3456 throw new IllegalArgumentException("Listener not registered: " + listener); 3457 } 3458 try { 3459 getService().unregisterUidObserver(observer); 3460 } catch (RemoteException e) { 3461 throw e.rethrowFromSystemServer(); 3462 } 3463 } 3464 } 3465 3466 /** 3467 * Return global memory state information for the calling process. This 3468 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3469 * only fields that will be filled in are 3470 * {@link RunningAppProcessInfo#pid}, 3471 * {@link RunningAppProcessInfo#uid}, 3472 * {@link RunningAppProcessInfo#lastTrimLevel}, 3473 * {@link RunningAppProcessInfo#importance}, 3474 * {@link RunningAppProcessInfo#lru}, and 3475 * {@link RunningAppProcessInfo#importanceReasonCode}. 3476 */ 3477 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3478 try { 3479 getService().getMyMemoryState(outState); 3480 } catch (RemoteException e) { 3481 throw e.rethrowFromSystemServer(); 3482 } 3483 } 3484 3485 /** 3486 * Return information about the memory usage of one or more processes. 3487 * 3488 * <p><b>Note: this method is only intended for debugging or building 3489 * a user-facing process management UI.</b></p> 3490 * 3491 * @param pids The pids of the processes whose memory usage is to be 3492 * retrieved. 3493 * @return Returns an array of memory information, one for each 3494 * requested pid. 3495 */ 3496 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3497 try { 3498 return getService().getProcessMemoryInfo(pids); 3499 } catch (RemoteException e) { 3500 throw e.rethrowFromSystemServer(); 3501 } 3502 } 3503 3504 /** 3505 * @deprecated This is now just a wrapper for 3506 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3507 * is no longer available to applications because it allows them to 3508 * break other applications by removing their alarms, stopping their 3509 * services, etc. 3510 */ 3511 @Deprecated 3512 public void restartPackage(String packageName) { 3513 killBackgroundProcesses(packageName); 3514 } 3515 3516 /** 3517 * Have the system immediately kill all background processes associated 3518 * with the given package. This is the same as the kernel killing those 3519 * processes to reclaim memory; the system will take care of restarting 3520 * these processes in the future as needed. 3521 * 3522 * @param packageName The name of the package whose processes are to 3523 * be killed. 3524 */ 3525 @RequiresPermission(Manifest.permission.KILL_BACKGROUND_PROCESSES) 3526 public void killBackgroundProcesses(String packageName) { 3527 try { 3528 getService().killBackgroundProcesses(packageName, 3529 UserHandle.myUserId()); 3530 } catch (RemoteException e) { 3531 throw e.rethrowFromSystemServer(); 3532 } 3533 } 3534 3535 /** 3536 * Kills the specified UID. 3537 * @param uid The UID to kill. 3538 * @param reason The reason for the kill. 3539 * 3540 * @hide 3541 */ 3542 @SystemApi 3543 @RequiresPermission(Manifest.permission.KILL_UID) 3544 public void killUid(int uid, String reason) { 3545 try { 3546 getService().killUid(UserHandle.getAppId(uid), 3547 UserHandle.getUserId(uid), reason); 3548 } catch (RemoteException e) { 3549 throw e.rethrowFromSystemServer(); 3550 } 3551 } 3552 3553 /** 3554 * Have the system perform a force stop of everything associated with 3555 * the given application package. All processes that share its uid 3556 * will be killed, all services it has running stopped, all activities 3557 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3558 * broadcast will be sent, so that any of its registered alarms can 3559 * be stopped, notifications removed, etc. 3560 * 3561 * <p>You must hold the permission 3562 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3563 * call this method. 3564 * 3565 * @param packageName The name of the package to be stopped. 3566 * @param userId The user for which the running package is to be stopped. 3567 * 3568 * @hide This is not available to third party applications due to 3569 * it allowing them to break other applications by stopping their 3570 * services, removing their alarms, etc. 3571 */ 3572 public void forceStopPackageAsUser(String packageName, int userId) { 3573 try { 3574 getService().forceStopPackage(packageName, userId); 3575 } catch (RemoteException e) { 3576 throw e.rethrowFromSystemServer(); 3577 } 3578 } 3579 3580 /** 3581 * @see #forceStopPackageAsUser(String, int) 3582 * @hide 3583 */ 3584 @SystemApi 3585 @RequiresPermission(Manifest.permission.FORCE_STOP_PACKAGES) 3586 public void forceStopPackage(String packageName) { 3587 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3588 } 3589 3590 /** 3591 * Get the device configuration attributes. 3592 */ 3593 public ConfigurationInfo getDeviceConfigurationInfo() { 3594 try { 3595 return getService().getDeviceConfigurationInfo(); 3596 } catch (RemoteException e) { 3597 throw e.rethrowFromSystemServer(); 3598 } 3599 } 3600 3601 /** 3602 * Get the preferred density of icons for the launcher. This is used when 3603 * custom drawables are created (e.g., for shortcuts). 3604 * 3605 * @return density in terms of DPI 3606 */ 3607 public int getLauncherLargeIconDensity() { 3608 final Resources res = mContext.getResources(); 3609 final int density = res.getDisplayMetrics().densityDpi; 3610 final int sw = res.getConfiguration().smallestScreenWidthDp; 3611 3612 if (sw < 600) { 3613 // Smaller than approx 7" tablets, use the regular icon size. 3614 return density; 3615 } 3616 3617 switch (density) { 3618 case DisplayMetrics.DENSITY_LOW: 3619 return DisplayMetrics.DENSITY_MEDIUM; 3620 case DisplayMetrics.DENSITY_MEDIUM: 3621 return DisplayMetrics.DENSITY_HIGH; 3622 case DisplayMetrics.DENSITY_TV: 3623 return DisplayMetrics.DENSITY_XHIGH; 3624 case DisplayMetrics.DENSITY_HIGH: 3625 return DisplayMetrics.DENSITY_XHIGH; 3626 case DisplayMetrics.DENSITY_XHIGH: 3627 return DisplayMetrics.DENSITY_XXHIGH; 3628 case DisplayMetrics.DENSITY_XXHIGH: 3629 return DisplayMetrics.DENSITY_XHIGH * 2; 3630 default: 3631 // The density is some abnormal value. Return some other 3632 // abnormal value that is a reasonable scaling of it. 3633 return (int)((density*1.5f)+.5f); 3634 } 3635 } 3636 3637 /** 3638 * Get the preferred launcher icon size. This is used when custom drawables 3639 * are created (e.g., for shortcuts). 3640 * 3641 * @return dimensions of square icons in terms of pixels 3642 */ 3643 public int getLauncherLargeIconSize() { 3644 return getLauncherLargeIconSizeInner(mContext); 3645 } 3646 3647 static int getLauncherLargeIconSizeInner(Context context) { 3648 final Resources res = context.getResources(); 3649 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3650 final int sw = res.getConfiguration().smallestScreenWidthDp; 3651 3652 if (sw < 600) { 3653 // Smaller than approx 7" tablets, use the regular icon size. 3654 return size; 3655 } 3656 3657 final int density = res.getDisplayMetrics().densityDpi; 3658 3659 switch (density) { 3660 case DisplayMetrics.DENSITY_LOW: 3661 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3662 case DisplayMetrics.DENSITY_MEDIUM: 3663 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3664 case DisplayMetrics.DENSITY_TV: 3665 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3666 case DisplayMetrics.DENSITY_HIGH: 3667 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3668 case DisplayMetrics.DENSITY_XHIGH: 3669 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3670 case DisplayMetrics.DENSITY_XXHIGH: 3671 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3672 default: 3673 // The density is some abnormal value. Return some other 3674 // abnormal value that is a reasonable scaling of it. 3675 return (int)((size*1.5f) + .5f); 3676 } 3677 } 3678 3679 /** 3680 * Returns "true" if the user interface is currently being messed with 3681 * by a monkey. 3682 */ 3683 public static boolean isUserAMonkey() { 3684 try { 3685 return getService().isUserAMonkey(); 3686 } catch (RemoteException e) { 3687 throw e.rethrowFromSystemServer(); 3688 } 3689 } 3690 3691 /** 3692 * Returns "true" if device is running in a test harness. 3693 */ 3694 public static boolean isRunningInTestHarness() { 3695 return SystemProperties.getBoolean("ro.test_harness", false); 3696 } 3697 3698 /** 3699 * Returns the launch count of each installed package. 3700 * 3701 * @hide 3702 */ 3703 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3704 try { 3705 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3706 ServiceManager.getService("usagestats")); 3707 if (usageStatsService == null) { 3708 return new HashMap<String, Integer>(); 3709 } 3710 3711 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3712 ActivityThread.currentPackageName()); 3713 if (allPkgUsageStats == null) { 3714 return new HashMap<String, Integer>(); 3715 } 3716 3717 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3718 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3719 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3720 } 3721 3722 return launchCounts; 3723 } catch (RemoteException e) { 3724 Log.w(TAG, "Could not query launch counts", e); 3725 return new HashMap<String, Integer>(); 3726 } 3727 }*/ 3728 3729 /** @hide */ 3730 public static int checkComponentPermission(String permission, int uid, 3731 int owningUid, boolean exported) { 3732 // Root, system server get to do everything. 3733 final int appId = UserHandle.getAppId(uid); 3734 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3735 return PackageManager.PERMISSION_GRANTED; 3736 } 3737 // Isolated processes don't get any permissions. 3738 if (UserHandle.isIsolated(uid)) { 3739 return PackageManager.PERMISSION_DENIED; 3740 } 3741 // If there is a uid that owns whatever is being accessed, it has 3742 // blanket access to it regardless of the permissions it requires. 3743 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3744 return PackageManager.PERMISSION_GRANTED; 3745 } 3746 // If the target is not exported, then nobody else can get to it. 3747 if (!exported) { 3748 /* 3749 RuntimeException here = new RuntimeException("here"); 3750 here.fillInStackTrace(); 3751 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3752 here); 3753 */ 3754 return PackageManager.PERMISSION_DENIED; 3755 } 3756 if (permission == null) { 3757 return PackageManager.PERMISSION_GRANTED; 3758 } 3759 try { 3760 return AppGlobals.getPackageManager() 3761 .checkUidPermission(permission, uid); 3762 } catch (RemoteException e) { 3763 throw e.rethrowFromSystemServer(); 3764 } 3765 } 3766 3767 /** @hide */ 3768 public static int checkUidPermission(String permission, int uid) { 3769 try { 3770 return AppGlobals.getPackageManager() 3771 .checkUidPermission(permission, uid); 3772 } catch (RemoteException e) { 3773 throw e.rethrowFromSystemServer(); 3774 } 3775 } 3776 3777 /** 3778 * @hide 3779 * Helper for dealing with incoming user arguments to system service calls. 3780 * Takes care of checking permissions and converting USER_CURRENT to the 3781 * actual current user. 3782 * 3783 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3784 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3785 * @param userId The user id argument supplied by the caller -- this is the user 3786 * they want to run as. 3787 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3788 * to get a USER_ALL returned and deal with it correctly. If false, 3789 * an exception will be thrown if USER_ALL is supplied. 3790 * @param requireFull If true, the caller must hold 3791 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3792 * different user than their current process; otherwise they must hold 3793 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3794 * @param name Optional textual name of the incoming call; only for generating error messages. 3795 * @param callerPackage Optional package name of caller; only for error messages. 3796 * 3797 * @return Returns the user ID that the call should run as. Will always be a concrete 3798 * user number, unless <var>allowAll</var> is true in which case it could also be 3799 * USER_ALL. 3800 */ 3801 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3802 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3803 if (UserHandle.getUserId(callingUid) == userId) { 3804 return userId; 3805 } 3806 try { 3807 return getService().handleIncomingUser(callingPid, 3808 callingUid, userId, allowAll, requireFull, name, callerPackage); 3809 } catch (RemoteException e) { 3810 throw e.rethrowFromSystemServer(); 3811 } 3812 } 3813 3814 /** 3815 * Gets the userId of the current foreground user. Requires system permissions. 3816 * @hide 3817 */ 3818 @SystemApi 3819 @RequiresPermission(anyOf = { 3820 "android.permission.INTERACT_ACROSS_USERS", 3821 "android.permission.INTERACT_ACROSS_USERS_FULL" 3822 }) 3823 public static int getCurrentUser() { 3824 UserInfo ui; 3825 try { 3826 ui = getService().getCurrentUser(); 3827 return ui != null ? ui.id : 0; 3828 } catch (RemoteException e) { 3829 throw e.rethrowFromSystemServer(); 3830 } 3831 } 3832 3833 /** 3834 * @param userid the user's id. Zero indicates the default user. 3835 * @hide 3836 */ 3837 public boolean switchUser(int userid) { 3838 try { 3839 return getService().switchUser(userid); 3840 } catch (RemoteException e) { 3841 throw e.rethrowFromSystemServer(); 3842 } 3843 } 3844 3845 /** 3846 * Logs out current current foreground user by switching to the system user and stopping the 3847 * user being switched from. 3848 * @hide 3849 */ 3850 public static void logoutCurrentUser() { 3851 int currentUser = ActivityManager.getCurrentUser(); 3852 if (currentUser != UserHandle.USER_SYSTEM) { 3853 try { 3854 getService().switchUser(UserHandle.USER_SYSTEM); 3855 getService().stopUser(currentUser, /* force= */ false, null); 3856 } catch (RemoteException e) { 3857 e.rethrowFromSystemServer(); 3858 } 3859 } 3860 } 3861 3862 /** {@hide} */ 3863 public static final int FLAG_OR_STOPPED = 1 << 0; 3864 /** {@hide} */ 3865 public static final int FLAG_AND_LOCKED = 1 << 1; 3866 /** {@hide} */ 3867 public static final int FLAG_AND_UNLOCKED = 1 << 2; 3868 /** {@hide} */ 3869 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 3870 3871 /** 3872 * Return whether the given user is actively running. This means that 3873 * the user is in the "started" state, not "stopped" -- it is currently 3874 * allowed to run code through scheduled alarms, receiving broadcasts, 3875 * etc. A started user may be either the current foreground user or a 3876 * background user; the result here does not distinguish between the two. 3877 * @param userId the user's id. Zero indicates the default user. 3878 * @hide 3879 */ 3880 public boolean isUserRunning(int userId) { 3881 try { 3882 return getService().isUserRunning(userId, 0); 3883 } catch (RemoteException e) { 3884 throw e.rethrowFromSystemServer(); 3885 } 3886 } 3887 3888 /** {@hide} */ 3889 public boolean isVrModePackageEnabled(ComponentName component) { 3890 try { 3891 return getService().isVrModePackageEnabled(component); 3892 } catch (RemoteException e) { 3893 throw e.rethrowFromSystemServer(); 3894 } 3895 } 3896 3897 /** 3898 * Perform a system dump of various state associated with the given application 3899 * package name. This call blocks while the dump is being performed, so should 3900 * not be done on a UI thread. The data will be written to the given file 3901 * descriptor as text. 3902 * @param fd The file descriptor that the dump should be written to. The file 3903 * descriptor is <em>not</em> closed by this function; the caller continues to 3904 * own it. 3905 * @param packageName The name of the package that is to be dumped. 3906 */ 3907 @RequiresPermission(Manifest.permission.DUMP) 3908 public void dumpPackageState(FileDescriptor fd, String packageName) { 3909 dumpPackageStateStatic(fd, packageName); 3910 } 3911 3912 /** 3913 * @hide 3914 */ 3915 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 3916 FileOutputStream fout = new FileOutputStream(fd); 3917 PrintWriter pw = new FastPrintWriter(fout); 3918 dumpService(pw, fd, "package", new String[] { packageName }); 3919 pw.println(); 3920 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 3921 "-a", "package", packageName }); 3922 pw.println(); 3923 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 3924 pw.println(); 3925 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 3926 pw.println(); 3927 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 3928 pw.println(); 3929 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 3930 pw.flush(); 3931 } 3932 3933 /** 3934 * @hide 3935 */ 3936 public static boolean isSystemReady() { 3937 if (!sSystemReady) { 3938 if (ActivityThread.isSystem()) { 3939 sSystemReady = 3940 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 3941 } else { 3942 // Since this is being called from outside system server, system should be 3943 // ready by now. 3944 sSystemReady = true; 3945 } 3946 } 3947 return sSystemReady; 3948 } 3949 3950 /** 3951 * @hide 3952 */ 3953 public static void broadcastStickyIntent(Intent intent, int userId) { 3954 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 3955 } 3956 3957 /** 3958 * Convenience for sending a sticky broadcast. For internal use only. 3959 * 3960 * @hide 3961 */ 3962 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 3963 try { 3964 getService().broadcastIntent( 3965 null, intent, null, null, Activity.RESULT_OK, null, null, 3966 null /*permission*/, appOp, null, false, true, userId); 3967 } catch (RemoteException ex) { 3968 } 3969 } 3970 3971 /** 3972 * @hide 3973 */ 3974 public static void noteWakeupAlarm(PendingIntent ps, int sourceUid, String sourcePkg, 3975 String tag) { 3976 try { 3977 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, 3978 sourceUid, sourcePkg, tag); 3979 } catch (RemoteException ex) { 3980 } 3981 } 3982 3983 /** 3984 * @hide 3985 */ 3986 public static void noteAlarmStart(PendingIntent ps, int sourceUid, String tag) { 3987 try { 3988 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, sourceUid, tag); 3989 } catch (RemoteException ex) { 3990 } 3991 } 3992 3993 /** 3994 * @hide 3995 */ 3996 public static void noteAlarmFinish(PendingIntent ps, int sourceUid, String tag) { 3997 try { 3998 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, sourceUid, tag); 3999 } catch (RemoteException ex) { 4000 } 4001 } 4002 4003 /** 4004 * @hide 4005 */ 4006 public static IActivityManager getService() { 4007 return IActivityManagerSingleton.get(); 4008 } 4009 4010 private static final Singleton<IActivityManager> IActivityManagerSingleton = 4011 new Singleton<IActivityManager>() { 4012 @Override 4013 protected IActivityManager create() { 4014 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 4015 final IActivityManager am = IActivityManager.Stub.asInterface(b); 4016 return am; 4017 } 4018 }; 4019 4020 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 4021 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 4022 IBinder service = ServiceManager.checkService(name); 4023 if (service == null) { 4024 pw.println(" (Service not found)"); 4025 return; 4026 } 4027 TransferPipe tp = null; 4028 try { 4029 pw.flush(); 4030 tp = new TransferPipe(); 4031 tp.setBufferPrefix(" "); 4032 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 4033 tp.go(fd, 10000); 4034 } catch (Throwable e) { 4035 if (tp != null) { 4036 tp.kill(); 4037 } 4038 pw.println("Failure dumping service:"); 4039 e.printStackTrace(pw); 4040 } 4041 } 4042 4043 /** 4044 * Request that the system start watching for the calling process to exceed a pss 4045 * size as given here. Once called, the system will look for any occasions where it 4046 * sees the associated process with a larger pss size and, when this happens, automatically 4047 * pull a heap dump from it and allow the user to share the data. Note that this request 4048 * continues running even if the process is killed and restarted. To remove the watch, 4049 * use {@link #clearWatchHeapLimit()}. 4050 * 4051 * <p>This API only work if the calling process has been marked as 4052 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 4053 * (userdebug or eng) build.</p> 4054 * 4055 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 4056 * handle heap limit reports themselves.</p> 4057 * 4058 * @param pssSize The size in bytes to set the limit at. 4059 */ 4060 public void setWatchHeapLimit(long pssSize) { 4061 try { 4062 getService().setDumpHeapDebugLimit(null, 0, pssSize, 4063 mContext.getPackageName()); 4064 } catch (RemoteException e) { 4065 throw e.rethrowFromSystemServer(); 4066 } 4067 } 4068 4069 /** 4070 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 4071 * If your package has an activity handling this action, it will be launched with the 4072 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 4073 * match the activty must support this action and a MIME type of "*/*". 4074 */ 4075 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 4076 4077 /** 4078 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 4079 */ 4080 public void clearWatchHeapLimit() { 4081 try { 4082 getService().setDumpHeapDebugLimit(null, 0, 0, null); 4083 } catch (RemoteException e) { 4084 throw e.rethrowFromSystemServer(); 4085 } 4086 } 4087 4088 /** 4089 * Return whether currently in lock task mode. When in this mode 4090 * no new tasks can be created or switched to. 4091 * 4092 * @see Activity#startLockTask() 4093 * 4094 * @deprecated Use {@link #getLockTaskModeState} instead. 4095 */ 4096 @Deprecated 4097 public boolean isInLockTaskMode() { 4098 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 4099 } 4100 4101 /** 4102 * Return the current state of task locking. The three possible outcomes 4103 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 4104 * and {@link #LOCK_TASK_MODE_PINNED}. 4105 * 4106 * @see Activity#startLockTask() 4107 */ 4108 public int getLockTaskModeState() { 4109 try { 4110 return getService().getLockTaskModeState(); 4111 } catch (RemoteException e) { 4112 throw e.rethrowFromSystemServer(); 4113 } 4114 } 4115 4116 /** 4117 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 4118 * thread can be a VR thread in a process at a time, and that thread may be subject to 4119 * restrictions on the amount of time it can run. 4120 * 4121 * If persistent VR mode is set, whatever thread has been granted aggressive scheduling via this 4122 * method will return to normal operation, and calling this method will do nothing while 4123 * persistent VR mode is enabled. 4124 * 4125 * To reset the VR thread for an application, a tid of 0 can be passed. 4126 * 4127 * @see android.os.Process#myTid() 4128 * @param tid tid of the VR thread 4129 */ 4130 public static void setVrThread(int tid) { 4131 try { 4132 getService().setVrThread(tid); 4133 } catch (RemoteException e) { 4134 // pass 4135 } 4136 } 4137 4138 /** 4139 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads that persist 4140 * beyond a single process. Only one thread can be a 4141 * persistent VR thread at a time, and that thread may be subject to restrictions on the amount 4142 * of time it can run. Calling this method will disable aggressive scheduling for non-persistent 4143 * VR threads set via {@link #setVrThread}. If persistent VR mode is disabled then the 4144 * persistent VR thread loses its new scheduling priority; this method must be called again to 4145 * set the persistent thread. 4146 * 4147 * To reset the persistent VR thread, a tid of 0 can be passed. 4148 * 4149 * @see android.os.Process#myTid() 4150 * @param tid tid of the VR thread 4151 * @hide 4152 */ 4153 @RequiresPermission(Manifest.permission.RESTRICTED_VR_ACCESS) 4154 public static void setPersistentVrThread(int tid) { 4155 try { 4156 getService().setPersistentVrThread(tid); 4157 } catch (RemoteException e) { 4158 // pass 4159 } 4160 } 4161 4162 /** 4163 * The AppTask allows you to manage your own application's tasks. 4164 * See {@link android.app.ActivityManager#getAppTasks()} 4165 */ 4166 public static class AppTask { 4167 private IAppTask mAppTaskImpl; 4168 4169 /** @hide */ 4170 public AppTask(IAppTask task) { 4171 mAppTaskImpl = task; 4172 } 4173 4174 /** 4175 * Finishes all activities in this task and removes it from the recent tasks list. 4176 */ 4177 public void finishAndRemoveTask() { 4178 try { 4179 mAppTaskImpl.finishAndRemoveTask(); 4180 } catch (RemoteException e) { 4181 throw e.rethrowFromSystemServer(); 4182 } 4183 } 4184 4185 /** 4186 * Get the RecentTaskInfo associated with this task. 4187 * 4188 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 4189 */ 4190 public RecentTaskInfo getTaskInfo() { 4191 try { 4192 return mAppTaskImpl.getTaskInfo(); 4193 } catch (RemoteException e) { 4194 throw e.rethrowFromSystemServer(); 4195 } 4196 } 4197 4198 /** 4199 * Bring this task to the foreground. If it contains activities, they will be 4200 * brought to the foreground with it and their instances re-created if needed. 4201 * If it doesn't contain activities, the root activity of the task will be 4202 * re-launched. 4203 */ 4204 public void moveToFront() { 4205 try { 4206 mAppTaskImpl.moveToFront(); 4207 } catch (RemoteException e) { 4208 throw e.rethrowFromSystemServer(); 4209 } 4210 } 4211 4212 /** 4213 * Start an activity in this task. Brings the task to the foreground. If this task 4214 * is not currently active (that is, its id < 0), then a new activity for the given 4215 * Intent will be launched as the root of the task and the task brought to the 4216 * foreground. Otherwise, if this task is currently active and the Intent does not specify 4217 * an activity to launch in a new task, then a new activity for the given Intent will 4218 * be launched on top of the task and the task brought to the foreground. If this 4219 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 4220 * or would otherwise be launched in to a new task, then the activity not launched but 4221 * this task be brought to the foreground and a new intent delivered to the top 4222 * activity if appropriate. 4223 * 4224 * <p>In other words, you generally want to use an Intent here that does not specify 4225 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 4226 * and let the system do the right thing.</p> 4227 * 4228 * @param intent The Intent describing the new activity to be launched on the task. 4229 * @param options Optional launch options. 4230 * 4231 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 4232 */ 4233 public void startActivity(Context context, Intent intent, Bundle options) { 4234 ActivityThread thread = ActivityThread.currentActivityThread(); 4235 thread.getInstrumentation().execStartActivityFromAppTask(context, 4236 thread.getApplicationThread(), mAppTaskImpl, intent, options); 4237 } 4238 4239 /** 4240 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 4241 * Intent of this AppTask. 4242 * 4243 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 4244 * be set; otherwise, it will be cleared. 4245 */ 4246 public void setExcludeFromRecents(boolean exclude) { 4247 try { 4248 mAppTaskImpl.setExcludeFromRecents(exclude); 4249 } catch (RemoteException e) { 4250 throw e.rethrowFromSystemServer(); 4251 } 4252 } 4253 } 4254} 4255