ActivityManager.java revision 89be5761bcacfb27bbc63d0e94a86b666f52f294
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_FREEFORM; 20import static android.app.WindowConfiguration.WINDOWING_MODE_FULLSCREEN; 21import static android.app.WindowConfiguration.WINDOWING_MODE_PINNED; 22import static android.app.WindowConfiguration.WINDOWING_MODE_SPLIT_SCREEN_PRIMARY; 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 /** 1539 * The current configuration this task is in. 1540 * @hide 1541 */ 1542 final public Configuration configuration = new Configuration(); 1543 1544 public RecentTaskInfo() { 1545 } 1546 1547 @Override 1548 public int describeContents() { 1549 return 0; 1550 } 1551 1552 @Override 1553 public void writeToParcel(Parcel dest, int flags) { 1554 dest.writeInt(id); 1555 dest.writeInt(persistentId); 1556 if (baseIntent != null) { 1557 dest.writeInt(1); 1558 baseIntent.writeToParcel(dest, 0); 1559 } else { 1560 dest.writeInt(0); 1561 } 1562 ComponentName.writeToParcel(origActivity, dest); 1563 ComponentName.writeToParcel(realActivity, dest); 1564 TextUtils.writeToParcel(description, dest, 1565 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1566 if (taskDescription != null) { 1567 dest.writeInt(1); 1568 taskDescription.writeToParcel(dest, 0); 1569 } else { 1570 dest.writeInt(0); 1571 } 1572 dest.writeInt(stackId); 1573 dest.writeInt(userId); 1574 dest.writeLong(firstActiveTime); 1575 dest.writeLong(lastActiveTime); 1576 dest.writeInt(affiliatedTaskId); 1577 dest.writeInt(affiliatedTaskColor); 1578 ComponentName.writeToParcel(baseActivity, dest); 1579 ComponentName.writeToParcel(topActivity, dest); 1580 dest.writeInt(numActivities); 1581 if (bounds != null) { 1582 dest.writeInt(1); 1583 bounds.writeToParcel(dest, 0); 1584 } else { 1585 dest.writeInt(0); 1586 } 1587 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1588 dest.writeInt(resizeMode); 1589 configuration.writeToParcel(dest, flags); 1590 } 1591 1592 public void readFromParcel(Parcel source) { 1593 id = source.readInt(); 1594 persistentId = source.readInt(); 1595 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1596 origActivity = ComponentName.readFromParcel(source); 1597 realActivity = ComponentName.readFromParcel(source); 1598 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1599 taskDescription = source.readInt() > 0 ? 1600 TaskDescription.CREATOR.createFromParcel(source) : null; 1601 stackId = source.readInt(); 1602 userId = source.readInt(); 1603 firstActiveTime = source.readLong(); 1604 lastActiveTime = source.readLong(); 1605 affiliatedTaskId = source.readInt(); 1606 affiliatedTaskColor = source.readInt(); 1607 baseActivity = ComponentName.readFromParcel(source); 1608 topActivity = ComponentName.readFromParcel(source); 1609 numActivities = source.readInt(); 1610 bounds = source.readInt() > 0 ? 1611 Rect.CREATOR.createFromParcel(source) : null; 1612 supportsSplitScreenMultiWindow = source.readInt() == 1; 1613 resizeMode = source.readInt(); 1614 configuration.readFromParcel(source); 1615 } 1616 1617 public static final Creator<RecentTaskInfo> CREATOR 1618 = new Creator<RecentTaskInfo>() { 1619 public RecentTaskInfo createFromParcel(Parcel source) { 1620 return new RecentTaskInfo(source); 1621 } 1622 public RecentTaskInfo[] newArray(int size) { 1623 return new RecentTaskInfo[size]; 1624 } 1625 }; 1626 1627 private RecentTaskInfo(Parcel source) { 1628 readFromParcel(source); 1629 } 1630 } 1631 1632 /** 1633 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1634 * that have set their 1635 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1636 */ 1637 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1638 1639 /** 1640 * Provides a list that does not contain any 1641 * recent tasks that currently are not available to the user. 1642 */ 1643 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1644 1645 /** 1646 * Provides a list that contains recent tasks for all 1647 * profiles of a user. 1648 * @hide 1649 */ 1650 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1651 1652 /** 1653 * Ignores all tasks that are on the home stack. 1654 * @hide 1655 */ 1656 public static final int RECENT_IGNORE_HOME_AND_RECENTS_STACK_TASKS = 0x0008; 1657 1658 /** 1659 * Ignores the top task in the docked stack. 1660 * @hide 1661 */ 1662 public static final int RECENT_INGORE_DOCKED_STACK_TOP_TASK = 0x0010; 1663 1664 /** 1665 * Ignores all tasks that are on the pinned stack. 1666 * @hide 1667 */ 1668 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1669 1670 /** 1671 * <p></p>Return a list of the tasks that the user has recently launched, with 1672 * the most recent being first and older ones after in order. 1673 * 1674 * <p><b>Note: this method is only intended for debugging and presenting 1675 * task management user interfaces</b>. This should never be used for 1676 * core logic in an application, such as deciding between different 1677 * behaviors based on the information found here. Such uses are 1678 * <em>not</em> supported, and will likely break in the future. For 1679 * example, if multiple applications can be actively running at the 1680 * same time, assumptions made about the meaning of the data here for 1681 * purposes of control flow will be incorrect.</p> 1682 * 1683 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1684 * no longer available to third party applications: the introduction of 1685 * document-centric recents means 1686 * it can leak personal information to the caller. For backwards compatibility, 1687 * it will still return a small subset of its data: at least the caller's 1688 * own tasks (though see {@link #getAppTasks()} for the correct supported 1689 * way to retrieve that information), and possibly some other tasks 1690 * such as home that are known to not be sensitive. 1691 * 1692 * @param maxNum The maximum number of entries to return in the list. The 1693 * actual number returned may be smaller, depending on how many tasks the 1694 * user has started and the maximum number the system can remember. 1695 * @param flags Information about what to return. May be any combination 1696 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1697 * 1698 * @return Returns a list of RecentTaskInfo records describing each of 1699 * the recent tasks. 1700 */ 1701 @Deprecated 1702 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1703 throws SecurityException { 1704 try { 1705 return getService().getRecentTasks(maxNum, 1706 flags, UserHandle.myUserId()).getList(); 1707 } catch (RemoteException e) { 1708 throw e.rethrowFromSystemServer(); 1709 } 1710 } 1711 1712 /** 1713 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1714 * specific user. It requires holding 1715 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1716 * @param maxNum The maximum number of entries to return in the list. The 1717 * actual number returned may be smaller, depending on how many tasks the 1718 * user has started and the maximum number the system can remember. 1719 * @param flags Information about what to return. May be any combination 1720 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1721 * 1722 * @return Returns a list of RecentTaskInfo records describing each of 1723 * the recent tasks. Most recently activated tasks go first. 1724 * 1725 * @hide 1726 */ 1727 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1728 throws SecurityException { 1729 try { 1730 return getService().getRecentTasks(maxNum, 1731 flags, userId).getList(); 1732 } catch (RemoteException e) { 1733 throw e.rethrowFromSystemServer(); 1734 } 1735 } 1736 1737 /** 1738 * Information you can retrieve about a particular task that is currently 1739 * "running" in the system. Note that a running task does not mean the 1740 * given task actually has a process it is actively running in; it simply 1741 * means that the user has gone to it and never closed it, but currently 1742 * the system may have killed its process and is only holding on to its 1743 * last state in order to restart it when the user returns. 1744 */ 1745 public static class RunningTaskInfo implements Parcelable { 1746 /** 1747 * A unique identifier for this task. 1748 */ 1749 public int id; 1750 1751 /** 1752 * The stack that currently contains this task. 1753 * @hide 1754 */ 1755 public int stackId; 1756 1757 /** 1758 * The component launched as the first activity in the task. This can 1759 * be considered the "application" of this task. 1760 */ 1761 public ComponentName baseActivity; 1762 1763 /** 1764 * The activity component at the top of the history stack of the task. 1765 * This is what the user is currently doing. 1766 */ 1767 public ComponentName topActivity; 1768 1769 /** 1770 * Thumbnail representation of the task's current state. Currently 1771 * always null. 1772 */ 1773 public Bitmap thumbnail; 1774 1775 /** 1776 * Description of the task's current state. 1777 */ 1778 public CharSequence description; 1779 1780 /** 1781 * Number of activities in this task. 1782 */ 1783 public int numActivities; 1784 1785 /** 1786 * Number of activities that are currently running (not stopped 1787 * and persisted) in this task. 1788 */ 1789 public int numRunning; 1790 1791 /** 1792 * Last time task was run. For sorting. 1793 * @hide 1794 */ 1795 public long lastActiveTime; 1796 1797 /** 1798 * True if the task can go in the docked stack. 1799 * @hide 1800 */ 1801 public boolean supportsSplitScreenMultiWindow; 1802 1803 /** 1804 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1805 * @hide 1806 */ 1807 public int resizeMode; 1808 1809 /** 1810 * The full configuration the task is currently running in. 1811 * @hide 1812 */ 1813 final public Configuration configuration = new Configuration(); 1814 1815 public RunningTaskInfo() { 1816 } 1817 1818 public int describeContents() { 1819 return 0; 1820 } 1821 1822 public void writeToParcel(Parcel dest, int flags) { 1823 dest.writeInt(id); 1824 dest.writeInt(stackId); 1825 ComponentName.writeToParcel(baseActivity, dest); 1826 ComponentName.writeToParcel(topActivity, dest); 1827 if (thumbnail != null) { 1828 dest.writeInt(1); 1829 thumbnail.writeToParcel(dest, 0); 1830 } else { 1831 dest.writeInt(0); 1832 } 1833 TextUtils.writeToParcel(description, dest, 1834 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1835 dest.writeInt(numActivities); 1836 dest.writeInt(numRunning); 1837 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1838 dest.writeInt(resizeMode); 1839 configuration.writeToParcel(dest, flags); 1840 } 1841 1842 public void readFromParcel(Parcel source) { 1843 id = source.readInt(); 1844 stackId = source.readInt(); 1845 baseActivity = ComponentName.readFromParcel(source); 1846 topActivity = ComponentName.readFromParcel(source); 1847 if (source.readInt() != 0) { 1848 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1849 } else { 1850 thumbnail = null; 1851 } 1852 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1853 numActivities = source.readInt(); 1854 numRunning = source.readInt(); 1855 supportsSplitScreenMultiWindow = source.readInt() != 0; 1856 resizeMode = source.readInt(); 1857 configuration.readFromParcel(source); 1858 } 1859 1860 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1861 public RunningTaskInfo createFromParcel(Parcel source) { 1862 return new RunningTaskInfo(source); 1863 } 1864 public RunningTaskInfo[] newArray(int size) { 1865 return new RunningTaskInfo[size]; 1866 } 1867 }; 1868 1869 private RunningTaskInfo(Parcel source) { 1870 readFromParcel(source); 1871 } 1872 } 1873 1874 /** 1875 * Get the list of tasks associated with the calling application. 1876 * 1877 * @return The list of tasks associated with the application making this call. 1878 * @throws SecurityException 1879 */ 1880 public List<ActivityManager.AppTask> getAppTasks() { 1881 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1882 List<IBinder> appTasks; 1883 try { 1884 appTasks = getService().getAppTasks(mContext.getPackageName()); 1885 } catch (RemoteException e) { 1886 throw e.rethrowFromSystemServer(); 1887 } 1888 int numAppTasks = appTasks.size(); 1889 for (int i = 0; i < numAppTasks; i++) { 1890 tasks.add(new AppTask(IAppTask.Stub.asInterface(appTasks.get(i)))); 1891 } 1892 return tasks; 1893 } 1894 1895 /** 1896 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1897 * with {@link #addAppTask}. 1898 */ 1899 public Size getAppTaskThumbnailSize() { 1900 synchronized (this) { 1901 ensureAppTaskThumbnailSizeLocked(); 1902 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1903 } 1904 } 1905 1906 private void ensureAppTaskThumbnailSizeLocked() { 1907 if (mAppTaskThumbnailSize == null) { 1908 try { 1909 mAppTaskThumbnailSize = getService().getAppTaskThumbnailSize(); 1910 } catch (RemoteException e) { 1911 throw e.rethrowFromSystemServer(); 1912 } 1913 } 1914 } 1915 1916 /** 1917 * Add a new {@link AppTask} for the calling application. This will create a new 1918 * recents entry that is added to the <b>end</b> of all existing recents. 1919 * 1920 * @param activity The activity that is adding the entry. This is used to help determine 1921 * the context that the new recents entry will be in. 1922 * @param intent The Intent that describes the recents entry. This is the same Intent that 1923 * you would have used to launch the activity for it. In generally you will want to set 1924 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1925 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1926 * entry will exist without an activity, so it doesn't make sense to not retain it when 1927 * its activity disappears. The given Intent here also must have an explicit ComponentName 1928 * set on it. 1929 * @param description Optional additional description information. 1930 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1931 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1932 * recreated in your process, probably in a way you don't like, before the recents entry 1933 * is added. 1934 * 1935 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 1936 * most likely cause of failure is that there is no more room for more tasks for your app. 1937 */ 1938 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 1939 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 1940 Point size; 1941 synchronized (this) { 1942 ensureAppTaskThumbnailSizeLocked(); 1943 size = mAppTaskThumbnailSize; 1944 } 1945 final int tw = thumbnail.getWidth(); 1946 final int th = thumbnail.getHeight(); 1947 if (tw != size.x || th != size.y) { 1948 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 1949 1950 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 1951 float scale; 1952 float dx = 0, dy = 0; 1953 if (tw * size.x > size.y * th) { 1954 scale = (float) size.x / (float) th; 1955 dx = (size.y - tw * scale) * 0.5f; 1956 } else { 1957 scale = (float) size.y / (float) tw; 1958 dy = (size.x - th * scale) * 0.5f; 1959 } 1960 Matrix matrix = new Matrix(); 1961 matrix.setScale(scale, scale); 1962 matrix.postTranslate((int) (dx + 0.5f), 0); 1963 1964 Canvas canvas = new Canvas(bm); 1965 canvas.drawBitmap(thumbnail, matrix, null); 1966 canvas.setBitmap(null); 1967 1968 thumbnail = bm; 1969 } 1970 if (description == null) { 1971 description = new TaskDescription(); 1972 } 1973 try { 1974 return getService().addAppTask(activity.getActivityToken(), 1975 intent, description, thumbnail); 1976 } catch (RemoteException e) { 1977 throw e.rethrowFromSystemServer(); 1978 } 1979 } 1980 1981 /** 1982 * Return a list of the tasks that are currently running, with 1983 * the most recent being first and older ones after in order. Note that 1984 * "running" does not mean any of the task's code is currently loaded or 1985 * activity -- the task may have been frozen by the system, so that it 1986 * can be restarted in its previous state when next brought to the 1987 * foreground. 1988 * 1989 * <p><b>Note: this method is only intended for debugging and presenting 1990 * task management user interfaces</b>. This should never be used for 1991 * core logic in an application, such as deciding between different 1992 * behaviors based on the information found here. Such uses are 1993 * <em>not</em> supported, and will likely break in the future. For 1994 * example, if multiple applications can be actively running at the 1995 * same time, assumptions made about the meaning of the data here for 1996 * purposes of control flow will be incorrect.</p> 1997 * 1998 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 1999 * is no longer available to third party 2000 * applications: the introduction of document-centric recents means 2001 * it can leak person information to the caller. For backwards compatibility, 2002 * it will still return a small subset of its data: at least the caller's 2003 * own tasks, and possibly some other tasks 2004 * such as home that are known to not be sensitive. 2005 * 2006 * @param maxNum The maximum number of entries to return in the list. The 2007 * actual number returned may be smaller, depending on how many tasks the 2008 * user has started. 2009 * 2010 * @return Returns a list of RunningTaskInfo records describing each of 2011 * the running tasks. 2012 */ 2013 @Deprecated 2014 public List<RunningTaskInfo> getRunningTasks(int maxNum) 2015 throws SecurityException { 2016 try { 2017 return getService().getTasks(maxNum, 0); 2018 } catch (RemoteException e) { 2019 throw e.rethrowFromSystemServer(); 2020 } 2021 } 2022 2023 /** 2024 * Completely remove the given task. 2025 * 2026 * @param taskId Identifier of the task to be removed. 2027 * @return Returns true if the given task was found and removed. 2028 * 2029 * @hide 2030 */ 2031 public boolean removeTask(int taskId) throws SecurityException { 2032 try { 2033 return getService().removeTask(taskId); 2034 } catch (RemoteException e) { 2035 throw e.rethrowFromSystemServer(); 2036 } 2037 } 2038 2039 /** 2040 * Sets the windowing mode for a specific task. Only works on tasks of type 2041 * {@link WindowConfiguration#ACTIVITY_TYPE_STANDARD} 2042 * @param taskId The id of the task to set the windowing mode for. 2043 * @param windowingMode The windowing mode to set for the task. 2044 * @param toTop If the task should be moved to the top once the windowing mode changes. 2045 * @hide 2046 */ 2047 @TestApi 2048 @RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS) 2049 public void setTaskWindowingMode(int taskId, int windowingMode, boolean toTop) 2050 throws SecurityException { 2051 try { 2052 getService().setTaskWindowingMode(taskId, windowingMode, toTop); 2053 } catch (RemoteException e) { 2054 throw e.rethrowFromSystemServer(); 2055 } 2056 } 2057 2058 /** 2059 * Resizes the input stack id to the given bounds. 2060 * @param stackId Id of the stack to resize. 2061 * @param bounds Bounds to resize the stack to or {@code null} for fullscreen. 2062 * @hide 2063 */ 2064 @TestApi 2065 @RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS) 2066 public void resizeStack(int stackId, Rect bounds) throws SecurityException { 2067 try { 2068 getService().resizeStack(stackId, bounds, false /* allowResizeInDockedMode */, 2069 false /* preserveWindows */, false /* animate */, -1 /* animationDuration */); 2070 } catch (RemoteException e) { 2071 throw e.rethrowFromSystemServer(); 2072 } 2073 } 2074 2075 /** 2076 * Removes stacks in the windowing modes from the system if they are of activity type 2077 * ACTIVITY_TYPE_STANDARD or ACTIVITY_TYPE_UNDEFINED 2078 * 2079 * @hide 2080 */ 2081 @TestApi 2082 @RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS) 2083 public void removeStacksInWindowingModes(int[] windowingModes) throws SecurityException { 2084 try { 2085 getService().removeStacksInWindowingModes(windowingModes); 2086 } catch (RemoteException e) { 2087 throw e.rethrowFromSystemServer(); 2088 } 2089 } 2090 2091 /** 2092 * Removes stack of the activity types from the system. 2093 * 2094 * @hide 2095 */ 2096 @TestApi 2097 @RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS) 2098 public void removeStacksWithActivityTypes(int[] activityTypes) throws SecurityException { 2099 try { 2100 getService().removeStacksWithActivityTypes(activityTypes); 2101 } catch (RemoteException e) { 2102 throw e.rethrowFromSystemServer(); 2103 } 2104 } 2105 2106 /** 2107 * Represents a task snapshot. 2108 * @hide 2109 */ 2110 public static class TaskSnapshot implements Parcelable { 2111 2112 private final GraphicBuffer mSnapshot; 2113 private final int mOrientation; 2114 private final Rect mContentInsets; 2115 private final boolean mReducedResolution; 2116 private final float mScale; 2117 2118 public TaskSnapshot(GraphicBuffer snapshot, int orientation, Rect contentInsets, 2119 boolean reducedResolution, float scale) { 2120 mSnapshot = snapshot; 2121 mOrientation = orientation; 2122 mContentInsets = new Rect(contentInsets); 2123 mReducedResolution = reducedResolution; 2124 mScale = scale; 2125 } 2126 2127 private TaskSnapshot(Parcel source) { 2128 mSnapshot = source.readParcelable(null /* classLoader */); 2129 mOrientation = source.readInt(); 2130 mContentInsets = source.readParcelable(null /* classLoader */); 2131 mReducedResolution = source.readBoolean(); 2132 mScale = source.readFloat(); 2133 } 2134 2135 /** 2136 * @return The graphic buffer representing the screenshot. 2137 */ 2138 public GraphicBuffer getSnapshot() { 2139 return mSnapshot; 2140 } 2141 2142 /** 2143 * @return The screen orientation the screenshot was taken in. 2144 */ 2145 public int getOrientation() { 2146 return mOrientation; 2147 } 2148 2149 /** 2150 * @return The system/content insets on the snapshot. These can be clipped off in order to 2151 * remove any areas behind system bars in the snapshot. 2152 */ 2153 public Rect getContentInsets() { 2154 return mContentInsets; 2155 } 2156 2157 /** 2158 * @return Whether this snapshot is a down-sampled version of the full resolution. 2159 */ 2160 public boolean isReducedResolution() { 2161 return mReducedResolution; 2162 } 2163 2164 /** 2165 * @return The scale this snapshot was taken in. 2166 */ 2167 public float getScale() { 2168 return mScale; 2169 } 2170 2171 @Override 2172 public int describeContents() { 2173 return 0; 2174 } 2175 2176 @Override 2177 public void writeToParcel(Parcel dest, int flags) { 2178 dest.writeParcelable(mSnapshot, 0); 2179 dest.writeInt(mOrientation); 2180 dest.writeParcelable(mContentInsets, 0); 2181 dest.writeBoolean(mReducedResolution); 2182 dest.writeFloat(mScale); 2183 } 2184 2185 @Override 2186 public String toString() { 2187 return "TaskSnapshot{mSnapshot=" + mSnapshot + " mOrientation=" + mOrientation 2188 + " mContentInsets=" + mContentInsets.toShortString() 2189 + " mReducedResolution=" + mReducedResolution + " mScale=" + mScale; 2190 } 2191 2192 public static final Creator<TaskSnapshot> CREATOR = new Creator<TaskSnapshot>() { 2193 public TaskSnapshot createFromParcel(Parcel source) { 2194 return new TaskSnapshot(source); 2195 } 2196 public TaskSnapshot[] newArray(int size) { 2197 return new TaskSnapshot[size]; 2198 } 2199 }; 2200 } 2201 2202 /** @hide */ 2203 @IntDef(flag = true, prefix = { "MOVE_TASK_" }, value = { 2204 MOVE_TASK_WITH_HOME, 2205 MOVE_TASK_NO_USER_ACTION, 2206 }) 2207 @Retention(RetentionPolicy.SOURCE) 2208 public @interface MoveTaskFlags {} 2209 2210 /** 2211 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2212 * activity along with the task, so it is positioned immediately behind 2213 * the task. 2214 */ 2215 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2216 2217 /** 2218 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2219 * user-instigated action, so the current activity will not receive a 2220 * hint that the user is leaving. 2221 */ 2222 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2223 2224 /** 2225 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2226 * with a null options argument. 2227 * 2228 * @param taskId The identifier of the task to be moved, as found in 2229 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2230 * @param flags Additional operational flags. 2231 */ 2232 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2233 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags) { 2234 moveTaskToFront(taskId, flags, null); 2235 } 2236 2237 /** 2238 * Ask that the task associated with a given task ID be moved to the 2239 * front of the stack, so it is now visible to the user. 2240 * 2241 * @param taskId The identifier of the task to be moved, as found in 2242 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2243 * @param flags Additional operational flags. 2244 * @param options Additional options for the operation, either null or 2245 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2246 * Context.startActivity(Intent, Bundle)}. 2247 */ 2248 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2249 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags, Bundle options) { 2250 try { 2251 getService().moveTaskToFront(taskId, flags, options); 2252 } catch (RemoteException e) { 2253 throw e.rethrowFromSystemServer(); 2254 } 2255 } 2256 2257 /** 2258 * Information you can retrieve about a particular Service that is 2259 * currently running in the system. 2260 */ 2261 public static class RunningServiceInfo implements Parcelable { 2262 /** 2263 * The service component. 2264 */ 2265 public ComponentName service; 2266 2267 /** 2268 * If non-zero, this is the process the service is running in. 2269 */ 2270 public int pid; 2271 2272 /** 2273 * The UID that owns this service. 2274 */ 2275 public int uid; 2276 2277 /** 2278 * The name of the process this service runs in. 2279 */ 2280 public String process; 2281 2282 /** 2283 * Set to true if the service has asked to run as a foreground process. 2284 */ 2285 public boolean foreground; 2286 2287 /** 2288 * The time when the service was first made active, either by someone 2289 * starting or binding to it. This 2290 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2291 */ 2292 public long activeSince; 2293 2294 /** 2295 * Set to true if this service has been explicitly started. 2296 */ 2297 public boolean started; 2298 2299 /** 2300 * Number of clients connected to the service. 2301 */ 2302 public int clientCount; 2303 2304 /** 2305 * Number of times the service's process has crashed while the service 2306 * is running. 2307 */ 2308 public int crashCount; 2309 2310 /** 2311 * The time when there was last activity in the service (either 2312 * explicit requests to start it or clients binding to it). This 2313 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2314 */ 2315 public long lastActivityTime; 2316 2317 /** 2318 * If non-zero, this service is not currently running, but scheduled to 2319 * restart at the given time. 2320 */ 2321 public long restarting; 2322 2323 /** 2324 * Bit for {@link #flags}: set if this service has been 2325 * explicitly started. 2326 */ 2327 public static final int FLAG_STARTED = 1<<0; 2328 2329 /** 2330 * Bit for {@link #flags}: set if the service has asked to 2331 * run as a foreground process. 2332 */ 2333 public static final int FLAG_FOREGROUND = 1<<1; 2334 2335 /** 2336 * Bit for {@link #flags}: set if the service is running in a 2337 * core system process. 2338 */ 2339 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2340 2341 /** 2342 * Bit for {@link #flags}: set if the service is running in a 2343 * persistent process. 2344 */ 2345 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2346 2347 /** 2348 * Running flags. 2349 */ 2350 public int flags; 2351 2352 /** 2353 * For special services that are bound to by system code, this is 2354 * the package that holds the binding. 2355 */ 2356 public String clientPackage; 2357 2358 /** 2359 * For special services that are bound to by system code, this is 2360 * a string resource providing a user-visible label for who the 2361 * client is. 2362 */ 2363 public int clientLabel; 2364 2365 public RunningServiceInfo() { 2366 } 2367 2368 public int describeContents() { 2369 return 0; 2370 } 2371 2372 public void writeToParcel(Parcel dest, int flags) { 2373 ComponentName.writeToParcel(service, dest); 2374 dest.writeInt(pid); 2375 dest.writeInt(uid); 2376 dest.writeString(process); 2377 dest.writeInt(foreground ? 1 : 0); 2378 dest.writeLong(activeSince); 2379 dest.writeInt(started ? 1 : 0); 2380 dest.writeInt(clientCount); 2381 dest.writeInt(crashCount); 2382 dest.writeLong(lastActivityTime); 2383 dest.writeLong(restarting); 2384 dest.writeInt(this.flags); 2385 dest.writeString(clientPackage); 2386 dest.writeInt(clientLabel); 2387 } 2388 2389 public void readFromParcel(Parcel source) { 2390 service = ComponentName.readFromParcel(source); 2391 pid = source.readInt(); 2392 uid = source.readInt(); 2393 process = source.readString(); 2394 foreground = source.readInt() != 0; 2395 activeSince = source.readLong(); 2396 started = source.readInt() != 0; 2397 clientCount = source.readInt(); 2398 crashCount = source.readInt(); 2399 lastActivityTime = source.readLong(); 2400 restarting = source.readLong(); 2401 flags = source.readInt(); 2402 clientPackage = source.readString(); 2403 clientLabel = source.readInt(); 2404 } 2405 2406 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2407 public RunningServiceInfo createFromParcel(Parcel source) { 2408 return new RunningServiceInfo(source); 2409 } 2410 public RunningServiceInfo[] newArray(int size) { 2411 return new RunningServiceInfo[size]; 2412 } 2413 }; 2414 2415 private RunningServiceInfo(Parcel source) { 2416 readFromParcel(source); 2417 } 2418 } 2419 2420 /** 2421 * Return a list of the services that are currently running. 2422 * 2423 * <p><b>Note: this method is only intended for debugging or implementing 2424 * service management type user interfaces.</b></p> 2425 * 2426 * @deprecated As of {@link android.os.Build.VERSION_CODES#O}, this method 2427 * is no longer available to third party applications. For backwards compatibility, 2428 * it will still return the caller's own services. 2429 * 2430 * @param maxNum The maximum number of entries to return in the list. The 2431 * actual number returned may be smaller, depending on how many services 2432 * are running. 2433 * 2434 * @return Returns a list of RunningServiceInfo records describing each of 2435 * the running tasks. 2436 */ 2437 @Deprecated 2438 public List<RunningServiceInfo> getRunningServices(int maxNum) 2439 throws SecurityException { 2440 try { 2441 return getService() 2442 .getServices(maxNum, 0); 2443 } catch (RemoteException e) { 2444 throw e.rethrowFromSystemServer(); 2445 } 2446 } 2447 2448 /** 2449 * Returns a PendingIntent you can start to show a control panel for the 2450 * given running service. If the service does not have a control panel, 2451 * null is returned. 2452 */ 2453 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2454 throws SecurityException { 2455 try { 2456 return getService() 2457 .getRunningServiceControlPanel(service); 2458 } catch (RemoteException e) { 2459 throw e.rethrowFromSystemServer(); 2460 } 2461 } 2462 2463 /** 2464 * Information you can retrieve about the available memory through 2465 * {@link ActivityManager#getMemoryInfo}. 2466 */ 2467 public static class MemoryInfo implements Parcelable { 2468 /** 2469 * The available memory on the system. This number should not 2470 * be considered absolute: due to the nature of the kernel, a significant 2471 * portion of this memory is actually in use and needed for the overall 2472 * system to run well. 2473 */ 2474 public long availMem; 2475 2476 /** 2477 * The total memory accessible by the kernel. This is basically the 2478 * RAM size of the device, not including below-kernel fixed allocations 2479 * like DMA buffers, RAM for the baseband CPU, etc. 2480 */ 2481 public long totalMem; 2482 2483 /** 2484 * The threshold of {@link #availMem} at which we consider memory to be 2485 * low and start killing background services and other non-extraneous 2486 * processes. 2487 */ 2488 public long threshold; 2489 2490 /** 2491 * Set to true if the system considers itself to currently be in a low 2492 * memory situation. 2493 */ 2494 public boolean lowMemory; 2495 2496 /** @hide */ 2497 public long hiddenAppThreshold; 2498 /** @hide */ 2499 public long secondaryServerThreshold; 2500 /** @hide */ 2501 public long visibleAppThreshold; 2502 /** @hide */ 2503 public long foregroundAppThreshold; 2504 2505 public MemoryInfo() { 2506 } 2507 2508 public int describeContents() { 2509 return 0; 2510 } 2511 2512 public void writeToParcel(Parcel dest, int flags) { 2513 dest.writeLong(availMem); 2514 dest.writeLong(totalMem); 2515 dest.writeLong(threshold); 2516 dest.writeInt(lowMemory ? 1 : 0); 2517 dest.writeLong(hiddenAppThreshold); 2518 dest.writeLong(secondaryServerThreshold); 2519 dest.writeLong(visibleAppThreshold); 2520 dest.writeLong(foregroundAppThreshold); 2521 } 2522 2523 public void readFromParcel(Parcel source) { 2524 availMem = source.readLong(); 2525 totalMem = source.readLong(); 2526 threshold = source.readLong(); 2527 lowMemory = source.readInt() != 0; 2528 hiddenAppThreshold = source.readLong(); 2529 secondaryServerThreshold = source.readLong(); 2530 visibleAppThreshold = source.readLong(); 2531 foregroundAppThreshold = source.readLong(); 2532 } 2533 2534 public static final Creator<MemoryInfo> CREATOR 2535 = new Creator<MemoryInfo>() { 2536 public MemoryInfo createFromParcel(Parcel source) { 2537 return new MemoryInfo(source); 2538 } 2539 public MemoryInfo[] newArray(int size) { 2540 return new MemoryInfo[size]; 2541 } 2542 }; 2543 2544 private MemoryInfo(Parcel source) { 2545 readFromParcel(source); 2546 } 2547 } 2548 2549 /** 2550 * Return general information about the memory state of the system. This 2551 * can be used to help decide how to manage your own memory, though note 2552 * that polling is not recommended and 2553 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2554 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2555 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2556 * level of your process as needed, which gives a better hint for how to 2557 * manage its memory. 2558 */ 2559 public void getMemoryInfo(MemoryInfo outInfo) { 2560 try { 2561 getService().getMemoryInfo(outInfo); 2562 } catch (RemoteException e) { 2563 throw e.rethrowFromSystemServer(); 2564 } 2565 } 2566 2567 /** 2568 * Information you can retrieve about an ActivityStack in the system. 2569 * @hide 2570 */ 2571 public static class StackInfo implements Parcelable { 2572 public int stackId; 2573 public Rect bounds = new Rect(); 2574 public int[] taskIds; 2575 public String[] taskNames; 2576 public Rect[] taskBounds; 2577 public int[] taskUserIds; 2578 public ComponentName topActivity; 2579 public int displayId; 2580 public int userId; 2581 public boolean visible; 2582 // Index of the stack in the display's stack list, can be used for comparison of stack order 2583 public int position; 2584 /** 2585 * The full configuration the stack is currently running in. 2586 * @hide 2587 */ 2588 final public Configuration configuration = new Configuration(); 2589 2590 @Override 2591 public int describeContents() { 2592 return 0; 2593 } 2594 2595 @Override 2596 public void writeToParcel(Parcel dest, int flags) { 2597 dest.writeInt(stackId); 2598 dest.writeInt(bounds.left); 2599 dest.writeInt(bounds.top); 2600 dest.writeInt(bounds.right); 2601 dest.writeInt(bounds.bottom); 2602 dest.writeIntArray(taskIds); 2603 dest.writeStringArray(taskNames); 2604 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2605 dest.writeInt(boundsCount); 2606 for (int i = 0; i < boundsCount; i++) { 2607 dest.writeInt(taskBounds[i].left); 2608 dest.writeInt(taskBounds[i].top); 2609 dest.writeInt(taskBounds[i].right); 2610 dest.writeInt(taskBounds[i].bottom); 2611 } 2612 dest.writeIntArray(taskUserIds); 2613 dest.writeInt(displayId); 2614 dest.writeInt(userId); 2615 dest.writeInt(visible ? 1 : 0); 2616 dest.writeInt(position); 2617 if (topActivity != null) { 2618 dest.writeInt(1); 2619 topActivity.writeToParcel(dest, 0); 2620 } else { 2621 dest.writeInt(0); 2622 } 2623 configuration.writeToParcel(dest, flags); 2624 } 2625 2626 public void readFromParcel(Parcel source) { 2627 stackId = source.readInt(); 2628 bounds = new Rect( 2629 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2630 taskIds = source.createIntArray(); 2631 taskNames = source.createStringArray(); 2632 final int boundsCount = source.readInt(); 2633 if (boundsCount > 0) { 2634 taskBounds = new Rect[boundsCount]; 2635 for (int i = 0; i < boundsCount; i++) { 2636 taskBounds[i] = new Rect(); 2637 taskBounds[i].set( 2638 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2639 } 2640 } else { 2641 taskBounds = null; 2642 } 2643 taskUserIds = source.createIntArray(); 2644 displayId = source.readInt(); 2645 userId = source.readInt(); 2646 visible = source.readInt() > 0; 2647 position = source.readInt(); 2648 if (source.readInt() > 0) { 2649 topActivity = ComponentName.readFromParcel(source); 2650 } 2651 configuration.readFromParcel(source); 2652 } 2653 2654 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2655 @Override 2656 public StackInfo createFromParcel(Parcel source) { 2657 return new StackInfo(source); 2658 } 2659 @Override 2660 public StackInfo[] newArray(int size) { 2661 return new StackInfo[size]; 2662 } 2663 }; 2664 2665 public StackInfo() { 2666 } 2667 2668 private StackInfo(Parcel source) { 2669 readFromParcel(source); 2670 } 2671 2672 public String toString(String prefix) { 2673 StringBuilder sb = new StringBuilder(256); 2674 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2675 sb.append(" bounds="); sb.append(bounds.toShortString()); 2676 sb.append(" displayId="); sb.append(displayId); 2677 sb.append(" userId="); sb.append(userId); 2678 sb.append("\n"); 2679 sb.append(" configuration="); sb.append(configuration); 2680 sb.append("\n"); 2681 prefix = prefix + " "; 2682 for (int i = 0; i < taskIds.length; ++i) { 2683 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2684 sb.append(": "); sb.append(taskNames[i]); 2685 if (taskBounds != null) { 2686 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2687 } 2688 sb.append(" userId=").append(taskUserIds[i]); 2689 sb.append(" visible=").append(visible); 2690 if (topActivity != null) { 2691 sb.append(" topActivity=").append(topActivity); 2692 } 2693 sb.append("\n"); 2694 } 2695 return sb.toString(); 2696 } 2697 2698 @Override 2699 public String toString() { 2700 return toString(""); 2701 } 2702 } 2703 2704 /** 2705 * @hide 2706 */ 2707 @RequiresPermission(anyOf={Manifest.permission.CLEAR_APP_USER_DATA, 2708 Manifest.permission.ACCESS_INSTANT_APPS}) 2709 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2710 try { 2711 return getService().clearApplicationUserData(packageName, 2712 observer, UserHandle.myUserId()); 2713 } catch (RemoteException e) { 2714 throw e.rethrowFromSystemServer(); 2715 } 2716 } 2717 2718 /** 2719 * Permits an application to erase its own data from disk. This is equivalent to 2720 * the user choosing to clear the app's data from within the device settings UI. It 2721 * erases all dynamic data associated with the app -- its private data and data in its 2722 * private area on external storage -- but does not remove the installed application 2723 * itself, nor any OBB files. It also revokes all runtime permissions that the app has acquired, 2724 * clears all notifications and removes all Uri grants related to this application. 2725 * 2726 * @return {@code true} if the application successfully requested that the application's 2727 * data be erased; {@code false} otherwise. 2728 */ 2729 public boolean clearApplicationUserData() { 2730 return clearApplicationUserData(mContext.getPackageName(), null); 2731 } 2732 2733 2734 /** 2735 * Permits an application to get the persistent URI permissions granted to another. 2736 * 2737 * <p>Typically called by Settings. 2738 * 2739 * @param packageName application to look for the granted permissions 2740 * @return list of granted URI permissions 2741 * 2742 * @hide 2743 */ 2744 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2745 try { 2746 return getService().getGrantedUriPermissions(packageName, 2747 UserHandle.myUserId()); 2748 } catch (RemoteException e) { 2749 throw e.rethrowFromSystemServer(); 2750 } 2751 } 2752 2753 /** 2754 * Permits an application to clear the persistent URI permissions granted to another. 2755 * 2756 * <p>Typically called by Settings. 2757 * 2758 * @param packageName application to clear its granted permissions 2759 * 2760 * @hide 2761 */ 2762 public void clearGrantedUriPermissions(String packageName) { 2763 try { 2764 getService().clearGrantedUriPermissions(packageName, 2765 UserHandle.myUserId()); 2766 } catch (RemoteException e) { 2767 throw e.rethrowFromSystemServer(); 2768 } 2769 } 2770 2771 /** 2772 * Information you can retrieve about any processes that are in an error condition. 2773 */ 2774 public static class ProcessErrorStateInfo implements Parcelable { 2775 /** 2776 * Condition codes 2777 */ 2778 public static final int NO_ERROR = 0; 2779 public static final int CRASHED = 1; 2780 public static final int NOT_RESPONDING = 2; 2781 2782 /** 2783 * The condition that the process is in. 2784 */ 2785 public int condition; 2786 2787 /** 2788 * The process name in which the crash or error occurred. 2789 */ 2790 public String processName; 2791 2792 /** 2793 * The pid of this process; 0 if none 2794 */ 2795 public int pid; 2796 2797 /** 2798 * The kernel user-ID that has been assigned to this process; 2799 * currently this is not a unique ID (multiple applications can have 2800 * the same uid). 2801 */ 2802 public int uid; 2803 2804 /** 2805 * The activity name associated with the error, if known. May be null. 2806 */ 2807 public String tag; 2808 2809 /** 2810 * A short message describing the error condition. 2811 */ 2812 public String shortMsg; 2813 2814 /** 2815 * A long message describing the error condition. 2816 */ 2817 public String longMsg; 2818 2819 /** 2820 * The stack trace where the error originated. May be null. 2821 */ 2822 public String stackTrace; 2823 2824 /** 2825 * to be deprecated: This value will always be null. 2826 */ 2827 public byte[] crashData = null; 2828 2829 public ProcessErrorStateInfo() { 2830 } 2831 2832 @Override 2833 public int describeContents() { 2834 return 0; 2835 } 2836 2837 @Override 2838 public void writeToParcel(Parcel dest, int flags) { 2839 dest.writeInt(condition); 2840 dest.writeString(processName); 2841 dest.writeInt(pid); 2842 dest.writeInt(uid); 2843 dest.writeString(tag); 2844 dest.writeString(shortMsg); 2845 dest.writeString(longMsg); 2846 dest.writeString(stackTrace); 2847 } 2848 2849 public void readFromParcel(Parcel source) { 2850 condition = source.readInt(); 2851 processName = source.readString(); 2852 pid = source.readInt(); 2853 uid = source.readInt(); 2854 tag = source.readString(); 2855 shortMsg = source.readString(); 2856 longMsg = source.readString(); 2857 stackTrace = source.readString(); 2858 } 2859 2860 public static final Creator<ProcessErrorStateInfo> CREATOR = 2861 new Creator<ProcessErrorStateInfo>() { 2862 public ProcessErrorStateInfo createFromParcel(Parcel source) { 2863 return new ProcessErrorStateInfo(source); 2864 } 2865 public ProcessErrorStateInfo[] newArray(int size) { 2866 return new ProcessErrorStateInfo[size]; 2867 } 2868 }; 2869 2870 private ProcessErrorStateInfo(Parcel source) { 2871 readFromParcel(source); 2872 } 2873 } 2874 2875 /** 2876 * Returns a list of any processes that are currently in an error condition. The result 2877 * will be null if all processes are running properly at this time. 2878 * 2879 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 2880 * current error conditions (it will not return an empty list). This list ordering is not 2881 * specified. 2882 */ 2883 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 2884 try { 2885 return getService().getProcessesInErrorState(); 2886 } catch (RemoteException e) { 2887 throw e.rethrowFromSystemServer(); 2888 } 2889 } 2890 2891 /** 2892 * Information you can retrieve about a running process. 2893 */ 2894 public static class RunningAppProcessInfo implements Parcelable { 2895 /** 2896 * The name of the process that this object is associated with 2897 */ 2898 public String processName; 2899 2900 /** 2901 * The pid of this process; 0 if none 2902 */ 2903 public int pid; 2904 2905 /** 2906 * The user id of this process. 2907 */ 2908 public int uid; 2909 2910 /** 2911 * All packages that have been loaded into the process. 2912 */ 2913 public String pkgList[]; 2914 2915 /** 2916 * Constant for {@link #flags}: this is an app that is unable to 2917 * correctly save its state when going to the background, 2918 * so it can not be killed while in the background. 2919 * @hide 2920 */ 2921 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 2922 2923 /** 2924 * Constant for {@link #flags}: this process is associated with a 2925 * persistent system app. 2926 * @hide 2927 */ 2928 public static final int FLAG_PERSISTENT = 1<<1; 2929 2930 /** 2931 * Constant for {@link #flags}: this process is associated with a 2932 * persistent system app. 2933 * @hide 2934 */ 2935 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 2936 2937 /** 2938 * Flags of information. May be any of 2939 * {@link #FLAG_CANT_SAVE_STATE}. 2940 * @hide 2941 */ 2942 public int flags; 2943 2944 /** 2945 * Last memory trim level reported to the process: corresponds to 2946 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2947 * ComponentCallbacks2.onTrimMemory(int)}. 2948 */ 2949 public int lastTrimLevel; 2950 2951 /** @hide */ 2952 @IntDef(prefix = { "IMPORTANCE_" }, value = { 2953 IMPORTANCE_FOREGROUND, 2954 IMPORTANCE_FOREGROUND_SERVICE, 2955 IMPORTANCE_TOP_SLEEPING, 2956 IMPORTANCE_VISIBLE, 2957 IMPORTANCE_PERCEPTIBLE, 2958 IMPORTANCE_CANT_SAVE_STATE, 2959 IMPORTANCE_SERVICE, 2960 IMPORTANCE_CACHED, 2961 IMPORTANCE_GONE, 2962 }) 2963 @Retention(RetentionPolicy.SOURCE) 2964 public @interface Importance {} 2965 2966 /** 2967 * Constant for {@link #importance}: This process is running the 2968 * foreground UI; that is, it is the thing currently at the top of the screen 2969 * that the user is interacting with. 2970 */ 2971 public static final int IMPORTANCE_FOREGROUND = 100; 2972 2973 /** 2974 * Constant for {@link #importance}: This process is running a foreground 2975 * service, for example to perform music playback even while the user is 2976 * not immediately in the app. This generally indicates that the process 2977 * is doing something the user actively cares about. 2978 */ 2979 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 2980 2981 /** 2982 * Constant for {@link #importance}: This process is running the foreground 2983 * UI, but the device is asleep so it is not visible to the user. This means 2984 * the user is not really aware of the process, because they can not see or 2985 * interact with it, but it is quite important because it what they expect to 2986 * return to once unlocking the device. 2987 */ 2988 public static final int IMPORTANCE_TOP_SLEEPING = 150; 2989 2990 /** 2991 * Constant for {@link #importance}: This process is running something 2992 * that is actively visible to the user, though not in the immediate 2993 * foreground. This may be running a window that is behind the current 2994 * foreground (so paused and with its state saved, not interacting with 2995 * the user, but visible to them to some degree); it may also be running 2996 * other services under the system's control that it inconsiders important. 2997 */ 2998 public static final int IMPORTANCE_VISIBLE = 200; 2999 3000 /** 3001 * Constant for {@link #importance}: {@link #IMPORTANCE_PERCEPTIBLE} had this wrong value 3002 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3003 * the value of {@link #IMPORTANCE_PERCEPTIBLE} has been fixed. 3004 * 3005 * <p>The system will return this value instead of {@link #IMPORTANCE_PERCEPTIBLE} 3006 * on Android versions below {@link Build.VERSION_CODES#O}. 3007 * 3008 * <p>On Android version {@link Build.VERSION_CODES#O} and later, this value will still be 3009 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 3010 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 3011 * the correct value {@link #IMPORTANCE_PERCEPTIBLE} will be returned. 3012 */ 3013 public static final int IMPORTANCE_PERCEPTIBLE_PRE_26 = 130; 3014 3015 /** 3016 * Constant for {@link #importance}: This process is not something the user 3017 * is directly aware of, but is otherwise perceptible to them to some degree. 3018 */ 3019 public static final int IMPORTANCE_PERCEPTIBLE = 230; 3020 3021 /** 3022 * Constant for {@link #importance}: {@link #IMPORTANCE_CANT_SAVE_STATE} had 3023 * this wrong value 3024 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3025 * the value of {@link #IMPORTANCE_CANT_SAVE_STATE} has been fixed. 3026 * 3027 * <p>The system will return this value instead of {@link #IMPORTANCE_CANT_SAVE_STATE} 3028 * on Android versions below {@link Build.VERSION_CODES#O}. 3029 * 3030 * <p>On Android version {@link Build.VERSION_CODES#O} after, this value will still be 3031 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 3032 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 3033 * the correct value {@link #IMPORTANCE_CANT_SAVE_STATE} will be returned. 3034 * 3035 * @hide 3036 */ 3037 public static final int IMPORTANCE_CANT_SAVE_STATE_PRE_26 = 170; 3038 3039 /** 3040 * Constant for {@link #importance}: This process is running an 3041 * application that can not save its state, and thus can't be killed 3042 * while in the background. 3043 * @hide 3044 */ 3045 public static final int IMPORTANCE_CANT_SAVE_STATE= 270; 3046 3047 /** 3048 * Constant for {@link #importance}: This process is contains services 3049 * that should remain running. These are background services apps have 3050 * started, not something the user is aware of, so they may be killed by 3051 * the system relatively freely (though it is generally desired that they 3052 * stay running as long as they want to). 3053 */ 3054 public static final int IMPORTANCE_SERVICE = 300; 3055 3056 /** 3057 * Constant for {@link #importance}: This process process contains 3058 * cached code that is expendable, not actively running any app components 3059 * we care about. 3060 */ 3061 public static final int IMPORTANCE_CACHED = 400; 3062 3063 /** 3064 * @deprecated Renamed to {@link #IMPORTANCE_CACHED}. 3065 */ 3066 public static final int IMPORTANCE_BACKGROUND = IMPORTANCE_CACHED; 3067 3068 /** 3069 * Constant for {@link #importance}: This process is empty of any 3070 * actively running code. 3071 * @deprecated This value is no longer reported, use {@link #IMPORTANCE_CACHED} instead. 3072 */ 3073 @Deprecated 3074 public static final int IMPORTANCE_EMPTY = 500; 3075 3076 /** 3077 * Constant for {@link #importance}: This process does not exist. 3078 */ 3079 public static final int IMPORTANCE_GONE = 1000; 3080 3081 /** 3082 * Convert a proc state to the correspondent IMPORTANCE_* constant. If the return value 3083 * will be passed to a client, use {@link #procStateToImportanceForClient}. 3084 * @hide 3085 */ 3086 public static @Importance int procStateToImportance(int procState) { 3087 if (procState == PROCESS_STATE_NONEXISTENT) { 3088 return IMPORTANCE_GONE; 3089 } else if (procState >= PROCESS_STATE_HOME) { 3090 return IMPORTANCE_CACHED; 3091 } else if (procState >= PROCESS_STATE_SERVICE) { 3092 return IMPORTANCE_SERVICE; 3093 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 3094 return IMPORTANCE_CANT_SAVE_STATE; 3095 } else if (procState >= PROCESS_STATE_TRANSIENT_BACKGROUND) { 3096 return IMPORTANCE_PERCEPTIBLE; 3097 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 3098 return IMPORTANCE_VISIBLE; 3099 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 3100 return IMPORTANCE_TOP_SLEEPING; 3101 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 3102 return IMPORTANCE_FOREGROUND_SERVICE; 3103 } else { 3104 return IMPORTANCE_FOREGROUND; 3105 } 3106 } 3107 3108 /** 3109 * Convert a proc state to the correspondent IMPORTANCE_* constant for a client represented 3110 * by a given {@link Context}, with converting {@link #IMPORTANCE_PERCEPTIBLE} 3111 * and {@link #IMPORTANCE_CANT_SAVE_STATE} to the corresponding "wrong" value if the 3112 * client's target SDK < {@link VERSION_CODES#O}. 3113 * @hide 3114 */ 3115 public static @Importance int procStateToImportanceForClient(int procState, 3116 Context clientContext) { 3117 return procStateToImportanceForTargetSdk(procState, 3118 clientContext.getApplicationInfo().targetSdkVersion); 3119 } 3120 3121 /** 3122 * See {@link #procStateToImportanceForClient}. 3123 * @hide 3124 */ 3125 public static @Importance int procStateToImportanceForTargetSdk(int procState, 3126 int targetSdkVersion) { 3127 final int importance = procStateToImportance(procState); 3128 3129 // For pre O apps, convert to the old, wrong values. 3130 if (targetSdkVersion < VERSION_CODES.O) { 3131 switch (importance) { 3132 case IMPORTANCE_PERCEPTIBLE: 3133 return IMPORTANCE_PERCEPTIBLE_PRE_26; 3134 case IMPORTANCE_CANT_SAVE_STATE: 3135 return IMPORTANCE_CANT_SAVE_STATE_PRE_26; 3136 } 3137 } 3138 return importance; 3139 } 3140 3141 /** @hide */ 3142 public static int importanceToProcState(@Importance int importance) { 3143 if (importance == IMPORTANCE_GONE) { 3144 return PROCESS_STATE_NONEXISTENT; 3145 } else if (importance >= IMPORTANCE_CACHED) { 3146 return PROCESS_STATE_HOME; 3147 } else if (importance >= IMPORTANCE_SERVICE) { 3148 return PROCESS_STATE_SERVICE; 3149 } else if (importance > IMPORTANCE_CANT_SAVE_STATE) { 3150 return PROCESS_STATE_HEAVY_WEIGHT; 3151 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 3152 return PROCESS_STATE_TRANSIENT_BACKGROUND; 3153 } else if (importance >= IMPORTANCE_VISIBLE) { 3154 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3155 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 3156 return PROCESS_STATE_TOP_SLEEPING; 3157 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 3158 return PROCESS_STATE_FOREGROUND_SERVICE; 3159 } else { 3160 return PROCESS_STATE_BOUND_FOREGROUND_SERVICE; 3161 } 3162 } 3163 3164 /** 3165 * The relative importance level that the system places on this process. 3166 * These constants are numbered so that "more important" values are 3167 * always smaller than "less important" values. 3168 */ 3169 public @Importance int importance; 3170 3171 /** 3172 * An additional ordering within a particular {@link #importance} 3173 * category, providing finer-grained information about the relative 3174 * utility of processes within a category. This number means nothing 3175 * except that a smaller values are more recently used (and thus 3176 * more important). Currently an LRU value is only maintained for 3177 * the {@link #IMPORTANCE_CACHED} category, though others may 3178 * be maintained in the future. 3179 */ 3180 public int lru; 3181 3182 /** 3183 * Constant for {@link #importanceReasonCode}: nothing special has 3184 * been specified for the reason for this level. 3185 */ 3186 public static final int REASON_UNKNOWN = 0; 3187 3188 /** 3189 * Constant for {@link #importanceReasonCode}: one of the application's 3190 * content providers is being used by another process. The pid of 3191 * the client process is in {@link #importanceReasonPid} and the 3192 * target provider in this process is in 3193 * {@link #importanceReasonComponent}. 3194 */ 3195 public static final int REASON_PROVIDER_IN_USE = 1; 3196 3197 /** 3198 * Constant for {@link #importanceReasonCode}: one of the application's 3199 * content providers is being used by another process. The pid of 3200 * the client process is in {@link #importanceReasonPid} and the 3201 * target provider in this process is in 3202 * {@link #importanceReasonComponent}. 3203 */ 3204 public static final int REASON_SERVICE_IN_USE = 2; 3205 3206 /** 3207 * The reason for {@link #importance}, if any. 3208 */ 3209 public int importanceReasonCode; 3210 3211 /** 3212 * For the specified values of {@link #importanceReasonCode}, this 3213 * is the process ID of the other process that is a client of this 3214 * process. This will be 0 if no other process is using this one. 3215 */ 3216 public int importanceReasonPid; 3217 3218 /** 3219 * For the specified values of {@link #importanceReasonCode}, this 3220 * is the name of the component that is being used in this process. 3221 */ 3222 public ComponentName importanceReasonComponent; 3223 3224 /** 3225 * When {@link #importanceReasonPid} is non-0, this is the importance 3226 * of the other pid. @hide 3227 */ 3228 public int importanceReasonImportance; 3229 3230 /** 3231 * Current process state, as per PROCESS_STATE_* constants. 3232 * @hide 3233 */ 3234 public int processState; 3235 3236 public RunningAppProcessInfo() { 3237 importance = IMPORTANCE_FOREGROUND; 3238 importanceReasonCode = REASON_UNKNOWN; 3239 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 3240 } 3241 3242 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 3243 processName = pProcessName; 3244 pid = pPid; 3245 pkgList = pArr; 3246 } 3247 3248 public int describeContents() { 3249 return 0; 3250 } 3251 3252 public void writeToParcel(Parcel dest, int flags) { 3253 dest.writeString(processName); 3254 dest.writeInt(pid); 3255 dest.writeInt(uid); 3256 dest.writeStringArray(pkgList); 3257 dest.writeInt(this.flags); 3258 dest.writeInt(lastTrimLevel); 3259 dest.writeInt(importance); 3260 dest.writeInt(lru); 3261 dest.writeInt(importanceReasonCode); 3262 dest.writeInt(importanceReasonPid); 3263 ComponentName.writeToParcel(importanceReasonComponent, dest); 3264 dest.writeInt(importanceReasonImportance); 3265 dest.writeInt(processState); 3266 } 3267 3268 public void readFromParcel(Parcel source) { 3269 processName = source.readString(); 3270 pid = source.readInt(); 3271 uid = source.readInt(); 3272 pkgList = source.readStringArray(); 3273 flags = source.readInt(); 3274 lastTrimLevel = source.readInt(); 3275 importance = source.readInt(); 3276 lru = source.readInt(); 3277 importanceReasonCode = source.readInt(); 3278 importanceReasonPid = source.readInt(); 3279 importanceReasonComponent = ComponentName.readFromParcel(source); 3280 importanceReasonImportance = source.readInt(); 3281 processState = source.readInt(); 3282 } 3283 3284 public static final Creator<RunningAppProcessInfo> CREATOR = 3285 new Creator<RunningAppProcessInfo>() { 3286 public RunningAppProcessInfo createFromParcel(Parcel source) { 3287 return new RunningAppProcessInfo(source); 3288 } 3289 public RunningAppProcessInfo[] newArray(int size) { 3290 return new RunningAppProcessInfo[size]; 3291 } 3292 }; 3293 3294 private RunningAppProcessInfo(Parcel source) { 3295 readFromParcel(source); 3296 } 3297 } 3298 3299 /** 3300 * Returns a list of application processes installed on external media 3301 * that are running on the device. 3302 * 3303 * <p><b>Note: this method is only intended for debugging or building 3304 * a user-facing process management UI.</b></p> 3305 * 3306 * @return Returns a list of ApplicationInfo records, or null if none 3307 * This list ordering is not specified. 3308 * @hide 3309 */ 3310 public List<ApplicationInfo> getRunningExternalApplications() { 3311 try { 3312 return getService().getRunningExternalApplications(); 3313 } catch (RemoteException e) { 3314 throw e.rethrowFromSystemServer(); 3315 } 3316 } 3317 3318 /** 3319 * Sets the memory trim mode for a process and schedules a memory trim operation. 3320 * 3321 * <p><b>Note: this method is only intended for testing framework.</b></p> 3322 * 3323 * @return Returns true if successful. 3324 * @hide 3325 */ 3326 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3327 try { 3328 return getService().setProcessMemoryTrimLevel(process, userId, 3329 level); 3330 } catch (RemoteException e) { 3331 throw e.rethrowFromSystemServer(); 3332 } 3333 } 3334 3335 /** 3336 * Returns a list of application processes that are running on the device. 3337 * 3338 * <p><b>Note: this method is only intended for debugging or building 3339 * a user-facing process management UI.</b></p> 3340 * 3341 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3342 * running processes (it will not return an empty list). This list ordering is not 3343 * specified. 3344 */ 3345 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3346 try { 3347 return getService().getRunningAppProcesses(); 3348 } catch (RemoteException e) { 3349 throw e.rethrowFromSystemServer(); 3350 } 3351 } 3352 3353 /** 3354 * Return the importance of a given package name, based on the processes that are 3355 * currently running. The return value is one of the importance constants defined 3356 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3357 * processes that this package has code running inside of. If there are no processes 3358 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3359 * @hide 3360 */ 3361 @SystemApi @TestApi 3362 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3363 public @RunningAppProcessInfo.Importance int getPackageImportance(String packageName) { 3364 try { 3365 int procState = getService().getPackageProcessState(packageName, 3366 mContext.getOpPackageName()); 3367 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3368 } catch (RemoteException e) { 3369 throw e.rethrowFromSystemServer(); 3370 } 3371 } 3372 3373 /** 3374 * Return the importance of a given uid, based on the processes that are 3375 * currently running. The return value is one of the importance constants defined 3376 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3377 * processes that this uid has running. If there are no processes 3378 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3379 * @hide 3380 */ 3381 @SystemApi @TestApi 3382 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3383 public @RunningAppProcessInfo.Importance int getUidImportance(int uid) { 3384 try { 3385 int procState = getService().getUidProcessState(uid, 3386 mContext.getOpPackageName()); 3387 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3388 } catch (RemoteException e) { 3389 throw e.rethrowFromSystemServer(); 3390 } 3391 } 3392 3393 /** 3394 * Callback to get reports about changes to the importance of a uid. Use with 3395 * {@link #addOnUidImportanceListener}. 3396 * @hide 3397 */ 3398 @SystemApi @TestApi 3399 public interface OnUidImportanceListener { 3400 /** 3401 * The importance if a given uid has changed. Will be one of the importance 3402 * values in {@link RunningAppProcessInfo}; 3403 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3404 * when the uid is no longer running at all. This callback will happen on a thread 3405 * from a thread pool, not the main UI thread. 3406 * @param uid The uid whose importance has changed. 3407 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3408 */ 3409 void onUidImportance(int uid, @RunningAppProcessInfo.Importance int importance); 3410 } 3411 3412 /** 3413 * Start monitoring changes to the imoportance of uids running in the system. 3414 * @param listener The listener callback that will receive change reports. 3415 * @param importanceCutpoint The level of importance in which the caller is interested 3416 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3417 * is used here, you will receive a call each time a uids importance transitions between 3418 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3419 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3420 * 3421 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3422 * permission to use this feature.</p> 3423 * 3424 * @throws IllegalArgumentException If the listener is already registered. 3425 * @throws SecurityException If the caller does not hold 3426 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3427 * @hide 3428 */ 3429 @SystemApi @TestApi 3430 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3431 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3432 @RunningAppProcessInfo.Importance int importanceCutpoint) { 3433 synchronized (this) { 3434 if (mImportanceListeners.containsKey(listener)) { 3435 throw new IllegalArgumentException("Listener already registered: " + listener); 3436 } 3437 // TODO: implement the cut point in the system process to avoid IPCs. 3438 UidObserver observer = new UidObserver(listener, mContext); 3439 try { 3440 getService().registerUidObserver(observer, 3441 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3442 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3443 mContext.getOpPackageName()); 3444 } catch (RemoteException e) { 3445 throw e.rethrowFromSystemServer(); 3446 } 3447 mImportanceListeners.put(listener, observer); 3448 } 3449 } 3450 3451 /** 3452 * Remove an importance listener that was previously registered with 3453 * {@link #addOnUidImportanceListener}. 3454 * 3455 * @throws IllegalArgumentException If the listener is not registered. 3456 * @hide 3457 */ 3458 @SystemApi @TestApi 3459 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3460 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3461 synchronized (this) { 3462 UidObserver observer = mImportanceListeners.remove(listener); 3463 if (observer == null) { 3464 throw new IllegalArgumentException("Listener not registered: " + listener); 3465 } 3466 try { 3467 getService().unregisterUidObserver(observer); 3468 } catch (RemoteException e) { 3469 throw e.rethrowFromSystemServer(); 3470 } 3471 } 3472 } 3473 3474 /** 3475 * Return global memory state information for the calling process. This 3476 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3477 * only fields that will be filled in are 3478 * {@link RunningAppProcessInfo#pid}, 3479 * {@link RunningAppProcessInfo#uid}, 3480 * {@link RunningAppProcessInfo#lastTrimLevel}, 3481 * {@link RunningAppProcessInfo#importance}, 3482 * {@link RunningAppProcessInfo#lru}, and 3483 * {@link RunningAppProcessInfo#importanceReasonCode}. 3484 */ 3485 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3486 try { 3487 getService().getMyMemoryState(outState); 3488 } catch (RemoteException e) { 3489 throw e.rethrowFromSystemServer(); 3490 } 3491 } 3492 3493 /** 3494 * Return information about the memory usage of one or more processes. 3495 * 3496 * <p><b>Note: this method is only intended for debugging or building 3497 * a user-facing process management UI.</b></p> 3498 * 3499 * @param pids The pids of the processes whose memory usage is to be 3500 * retrieved. 3501 * @return Returns an array of memory information, one for each 3502 * requested pid. 3503 */ 3504 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3505 try { 3506 return getService().getProcessMemoryInfo(pids); 3507 } catch (RemoteException e) { 3508 throw e.rethrowFromSystemServer(); 3509 } 3510 } 3511 3512 /** 3513 * @deprecated This is now just a wrapper for 3514 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3515 * is no longer available to applications because it allows them to 3516 * break other applications by removing their alarms, stopping their 3517 * services, etc. 3518 */ 3519 @Deprecated 3520 public void restartPackage(String packageName) { 3521 killBackgroundProcesses(packageName); 3522 } 3523 3524 /** 3525 * Have the system immediately kill all background processes associated 3526 * with the given package. This is the same as the kernel killing those 3527 * processes to reclaim memory; the system will take care of restarting 3528 * these processes in the future as needed. 3529 * 3530 * @param packageName The name of the package whose processes are to 3531 * be killed. 3532 */ 3533 @RequiresPermission(Manifest.permission.KILL_BACKGROUND_PROCESSES) 3534 public void killBackgroundProcesses(String packageName) { 3535 try { 3536 getService().killBackgroundProcesses(packageName, 3537 UserHandle.myUserId()); 3538 } catch (RemoteException e) { 3539 throw e.rethrowFromSystemServer(); 3540 } 3541 } 3542 3543 /** 3544 * Kills the specified UID. 3545 * @param uid The UID to kill. 3546 * @param reason The reason for the kill. 3547 * 3548 * @hide 3549 */ 3550 @SystemApi 3551 @RequiresPermission(Manifest.permission.KILL_UID) 3552 public void killUid(int uid, String reason) { 3553 try { 3554 getService().killUid(UserHandle.getAppId(uid), 3555 UserHandle.getUserId(uid), reason); 3556 } catch (RemoteException e) { 3557 throw e.rethrowFromSystemServer(); 3558 } 3559 } 3560 3561 /** 3562 * Have the system perform a force stop of everything associated with 3563 * the given application package. All processes that share its uid 3564 * will be killed, all services it has running stopped, all activities 3565 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3566 * broadcast will be sent, so that any of its registered alarms can 3567 * be stopped, notifications removed, etc. 3568 * 3569 * <p>You must hold the permission 3570 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3571 * call this method. 3572 * 3573 * @param packageName The name of the package to be stopped. 3574 * @param userId The user for which the running package is to be stopped. 3575 * 3576 * @hide This is not available to third party applications due to 3577 * it allowing them to break other applications by stopping their 3578 * services, removing their alarms, etc. 3579 */ 3580 public void forceStopPackageAsUser(String packageName, int userId) { 3581 try { 3582 getService().forceStopPackage(packageName, userId); 3583 } catch (RemoteException e) { 3584 throw e.rethrowFromSystemServer(); 3585 } 3586 } 3587 3588 /** 3589 * @see #forceStopPackageAsUser(String, int) 3590 * @hide 3591 */ 3592 @SystemApi 3593 @RequiresPermission(Manifest.permission.FORCE_STOP_PACKAGES) 3594 public void forceStopPackage(String packageName) { 3595 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3596 } 3597 3598 /** 3599 * Get the device configuration attributes. 3600 */ 3601 public ConfigurationInfo getDeviceConfigurationInfo() { 3602 try { 3603 return getService().getDeviceConfigurationInfo(); 3604 } catch (RemoteException e) { 3605 throw e.rethrowFromSystemServer(); 3606 } 3607 } 3608 3609 /** 3610 * Get the preferred density of icons for the launcher. This is used when 3611 * custom drawables are created (e.g., for shortcuts). 3612 * 3613 * @return density in terms of DPI 3614 */ 3615 public int getLauncherLargeIconDensity() { 3616 final Resources res = mContext.getResources(); 3617 final int density = res.getDisplayMetrics().densityDpi; 3618 final int sw = res.getConfiguration().smallestScreenWidthDp; 3619 3620 if (sw < 600) { 3621 // Smaller than approx 7" tablets, use the regular icon size. 3622 return density; 3623 } 3624 3625 switch (density) { 3626 case DisplayMetrics.DENSITY_LOW: 3627 return DisplayMetrics.DENSITY_MEDIUM; 3628 case DisplayMetrics.DENSITY_MEDIUM: 3629 return DisplayMetrics.DENSITY_HIGH; 3630 case DisplayMetrics.DENSITY_TV: 3631 return DisplayMetrics.DENSITY_XHIGH; 3632 case DisplayMetrics.DENSITY_HIGH: 3633 return DisplayMetrics.DENSITY_XHIGH; 3634 case DisplayMetrics.DENSITY_XHIGH: 3635 return DisplayMetrics.DENSITY_XXHIGH; 3636 case DisplayMetrics.DENSITY_XXHIGH: 3637 return DisplayMetrics.DENSITY_XHIGH * 2; 3638 default: 3639 // The density is some abnormal value. Return some other 3640 // abnormal value that is a reasonable scaling of it. 3641 return (int)((density*1.5f)+.5f); 3642 } 3643 } 3644 3645 /** 3646 * Get the preferred launcher icon size. This is used when custom drawables 3647 * are created (e.g., for shortcuts). 3648 * 3649 * @return dimensions of square icons in terms of pixels 3650 */ 3651 public int getLauncherLargeIconSize() { 3652 return getLauncherLargeIconSizeInner(mContext); 3653 } 3654 3655 static int getLauncherLargeIconSizeInner(Context context) { 3656 final Resources res = context.getResources(); 3657 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3658 final int sw = res.getConfiguration().smallestScreenWidthDp; 3659 3660 if (sw < 600) { 3661 // Smaller than approx 7" tablets, use the regular icon size. 3662 return size; 3663 } 3664 3665 final int density = res.getDisplayMetrics().densityDpi; 3666 3667 switch (density) { 3668 case DisplayMetrics.DENSITY_LOW: 3669 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3670 case DisplayMetrics.DENSITY_MEDIUM: 3671 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3672 case DisplayMetrics.DENSITY_TV: 3673 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3674 case DisplayMetrics.DENSITY_HIGH: 3675 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3676 case DisplayMetrics.DENSITY_XHIGH: 3677 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3678 case DisplayMetrics.DENSITY_XXHIGH: 3679 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3680 default: 3681 // The density is some abnormal value. Return some other 3682 // abnormal value that is a reasonable scaling of it. 3683 return (int)((size*1.5f) + .5f); 3684 } 3685 } 3686 3687 /** 3688 * Returns "true" if the user interface is currently being messed with 3689 * by a monkey. 3690 */ 3691 public static boolean isUserAMonkey() { 3692 try { 3693 return getService().isUserAMonkey(); 3694 } catch (RemoteException e) { 3695 throw e.rethrowFromSystemServer(); 3696 } 3697 } 3698 3699 /** 3700 * Returns "true" if device is running in a test harness. 3701 */ 3702 public static boolean isRunningInTestHarness() { 3703 return SystemProperties.getBoolean("ro.test_harness", false); 3704 } 3705 3706 /** 3707 * Returns the launch count of each installed package. 3708 * 3709 * @hide 3710 */ 3711 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3712 try { 3713 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3714 ServiceManager.getService("usagestats")); 3715 if (usageStatsService == null) { 3716 return new HashMap<String, Integer>(); 3717 } 3718 3719 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3720 ActivityThread.currentPackageName()); 3721 if (allPkgUsageStats == null) { 3722 return new HashMap<String, Integer>(); 3723 } 3724 3725 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3726 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3727 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3728 } 3729 3730 return launchCounts; 3731 } catch (RemoteException e) { 3732 Log.w(TAG, "Could not query launch counts", e); 3733 return new HashMap<String, Integer>(); 3734 } 3735 }*/ 3736 3737 /** @hide */ 3738 public static int checkComponentPermission(String permission, int uid, 3739 int owningUid, boolean exported) { 3740 // Root, system server get to do everything. 3741 final int appId = UserHandle.getAppId(uid); 3742 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3743 return PackageManager.PERMISSION_GRANTED; 3744 } 3745 // Isolated processes don't get any permissions. 3746 if (UserHandle.isIsolated(uid)) { 3747 return PackageManager.PERMISSION_DENIED; 3748 } 3749 // If there is a uid that owns whatever is being accessed, it has 3750 // blanket access to it regardless of the permissions it requires. 3751 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3752 return PackageManager.PERMISSION_GRANTED; 3753 } 3754 // If the target is not exported, then nobody else can get to it. 3755 if (!exported) { 3756 /* 3757 RuntimeException here = new RuntimeException("here"); 3758 here.fillInStackTrace(); 3759 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3760 here); 3761 */ 3762 return PackageManager.PERMISSION_DENIED; 3763 } 3764 if (permission == null) { 3765 return PackageManager.PERMISSION_GRANTED; 3766 } 3767 try { 3768 return AppGlobals.getPackageManager() 3769 .checkUidPermission(permission, uid); 3770 } catch (RemoteException e) { 3771 throw e.rethrowFromSystemServer(); 3772 } 3773 } 3774 3775 /** @hide */ 3776 public static int checkUidPermission(String permission, int uid) { 3777 try { 3778 return AppGlobals.getPackageManager() 3779 .checkUidPermission(permission, uid); 3780 } catch (RemoteException e) { 3781 throw e.rethrowFromSystemServer(); 3782 } 3783 } 3784 3785 /** 3786 * @hide 3787 * Helper for dealing with incoming user arguments to system service calls. 3788 * Takes care of checking permissions and converting USER_CURRENT to the 3789 * actual current user. 3790 * 3791 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3792 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3793 * @param userId The user id argument supplied by the caller -- this is the user 3794 * they want to run as. 3795 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3796 * to get a USER_ALL returned and deal with it correctly. If false, 3797 * an exception will be thrown if USER_ALL is supplied. 3798 * @param requireFull If true, the caller must hold 3799 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3800 * different user than their current process; otherwise they must hold 3801 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3802 * @param name Optional textual name of the incoming call; only for generating error messages. 3803 * @param callerPackage Optional package name of caller; only for error messages. 3804 * 3805 * @return Returns the user ID that the call should run as. Will always be a concrete 3806 * user number, unless <var>allowAll</var> is true in which case it could also be 3807 * USER_ALL. 3808 */ 3809 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3810 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3811 if (UserHandle.getUserId(callingUid) == userId) { 3812 return userId; 3813 } 3814 try { 3815 return getService().handleIncomingUser(callingPid, 3816 callingUid, userId, allowAll, requireFull, name, callerPackage); 3817 } catch (RemoteException e) { 3818 throw e.rethrowFromSystemServer(); 3819 } 3820 } 3821 3822 /** 3823 * Gets the userId of the current foreground user. Requires system permissions. 3824 * @hide 3825 */ 3826 @SystemApi 3827 @RequiresPermission(anyOf = { 3828 "android.permission.INTERACT_ACROSS_USERS", 3829 "android.permission.INTERACT_ACROSS_USERS_FULL" 3830 }) 3831 public static int getCurrentUser() { 3832 UserInfo ui; 3833 try { 3834 ui = getService().getCurrentUser(); 3835 return ui != null ? ui.id : 0; 3836 } catch (RemoteException e) { 3837 throw e.rethrowFromSystemServer(); 3838 } 3839 } 3840 3841 /** 3842 * @param userid the user's id. Zero indicates the default user. 3843 * @hide 3844 */ 3845 public boolean switchUser(int userid) { 3846 try { 3847 return getService().switchUser(userid); 3848 } catch (RemoteException e) { 3849 throw e.rethrowFromSystemServer(); 3850 } 3851 } 3852 3853 /** 3854 * Logs out current current foreground user by switching to the system user and stopping the 3855 * user being switched from. 3856 * @hide 3857 */ 3858 public static void logoutCurrentUser() { 3859 int currentUser = ActivityManager.getCurrentUser(); 3860 if (currentUser != UserHandle.USER_SYSTEM) { 3861 try { 3862 getService().switchUser(UserHandle.USER_SYSTEM); 3863 getService().stopUser(currentUser, /* force= */ false, null); 3864 } catch (RemoteException e) { 3865 e.rethrowFromSystemServer(); 3866 } 3867 } 3868 } 3869 3870 /** {@hide} */ 3871 public static final int FLAG_OR_STOPPED = 1 << 0; 3872 /** {@hide} */ 3873 public static final int FLAG_AND_LOCKED = 1 << 1; 3874 /** {@hide} */ 3875 public static final int FLAG_AND_UNLOCKED = 1 << 2; 3876 /** {@hide} */ 3877 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 3878 3879 /** 3880 * Return whether the given user is actively running. This means that 3881 * the user is in the "started" state, not "stopped" -- it is currently 3882 * allowed to run code through scheduled alarms, receiving broadcasts, 3883 * etc. A started user may be either the current foreground user or a 3884 * background user; the result here does not distinguish between the two. 3885 * @param userId the user's id. Zero indicates the default user. 3886 * @hide 3887 */ 3888 public boolean isUserRunning(int userId) { 3889 try { 3890 return getService().isUserRunning(userId, 0); 3891 } catch (RemoteException e) { 3892 throw e.rethrowFromSystemServer(); 3893 } 3894 } 3895 3896 /** {@hide} */ 3897 public boolean isVrModePackageEnabled(ComponentName component) { 3898 try { 3899 return getService().isVrModePackageEnabled(component); 3900 } catch (RemoteException e) { 3901 throw e.rethrowFromSystemServer(); 3902 } 3903 } 3904 3905 /** 3906 * Perform a system dump of various state associated with the given application 3907 * package name. This call blocks while the dump is being performed, so should 3908 * not be done on a UI thread. The data will be written to the given file 3909 * descriptor as text. 3910 * @param fd The file descriptor that the dump should be written to. The file 3911 * descriptor is <em>not</em> closed by this function; the caller continues to 3912 * own it. 3913 * @param packageName The name of the package that is to be dumped. 3914 */ 3915 @RequiresPermission(Manifest.permission.DUMP) 3916 public void dumpPackageState(FileDescriptor fd, String packageName) { 3917 dumpPackageStateStatic(fd, packageName); 3918 } 3919 3920 /** 3921 * @hide 3922 */ 3923 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 3924 FileOutputStream fout = new FileOutputStream(fd); 3925 PrintWriter pw = new FastPrintWriter(fout); 3926 dumpService(pw, fd, "package", new String[] { packageName }); 3927 pw.println(); 3928 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 3929 "-a", "package", packageName }); 3930 pw.println(); 3931 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 3932 pw.println(); 3933 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 3934 pw.println(); 3935 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 3936 pw.println(); 3937 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 3938 pw.flush(); 3939 } 3940 3941 /** 3942 * @hide 3943 */ 3944 public static boolean isSystemReady() { 3945 if (!sSystemReady) { 3946 if (ActivityThread.isSystem()) { 3947 sSystemReady = 3948 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 3949 } else { 3950 // Since this is being called from outside system server, system should be 3951 // ready by now. 3952 sSystemReady = true; 3953 } 3954 } 3955 return sSystemReady; 3956 } 3957 3958 /** 3959 * @hide 3960 */ 3961 public static void broadcastStickyIntent(Intent intent, int userId) { 3962 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 3963 } 3964 3965 /** 3966 * Convenience for sending a sticky broadcast. For internal use only. 3967 * 3968 * @hide 3969 */ 3970 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 3971 try { 3972 getService().broadcastIntent( 3973 null, intent, null, null, Activity.RESULT_OK, null, null, 3974 null /*permission*/, appOp, null, false, true, userId); 3975 } catch (RemoteException ex) { 3976 } 3977 } 3978 3979 /** 3980 * @hide 3981 */ 3982 public static void noteWakeupAlarm(PendingIntent ps, int sourceUid, String sourcePkg, 3983 String tag) { 3984 try { 3985 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, 3986 sourceUid, sourcePkg, tag); 3987 } catch (RemoteException ex) { 3988 } 3989 } 3990 3991 /** 3992 * @hide 3993 */ 3994 public static void noteAlarmStart(PendingIntent ps, int sourceUid, String tag) { 3995 try { 3996 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, sourceUid, tag); 3997 } catch (RemoteException ex) { 3998 } 3999 } 4000 4001 /** 4002 * @hide 4003 */ 4004 public static void noteAlarmFinish(PendingIntent ps, int sourceUid, String tag) { 4005 try { 4006 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4007 } catch (RemoteException ex) { 4008 } 4009 } 4010 4011 /** 4012 * @hide 4013 */ 4014 public static IActivityManager getService() { 4015 return IActivityManagerSingleton.get(); 4016 } 4017 4018 private static final Singleton<IActivityManager> IActivityManagerSingleton = 4019 new Singleton<IActivityManager>() { 4020 @Override 4021 protected IActivityManager create() { 4022 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 4023 final IActivityManager am = IActivityManager.Stub.asInterface(b); 4024 return am; 4025 } 4026 }; 4027 4028 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 4029 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 4030 IBinder service = ServiceManager.checkService(name); 4031 if (service == null) { 4032 pw.println(" (Service not found)"); 4033 return; 4034 } 4035 TransferPipe tp = null; 4036 try { 4037 pw.flush(); 4038 tp = new TransferPipe(); 4039 tp.setBufferPrefix(" "); 4040 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 4041 tp.go(fd, 10000); 4042 } catch (Throwable e) { 4043 if (tp != null) { 4044 tp.kill(); 4045 } 4046 pw.println("Failure dumping service:"); 4047 e.printStackTrace(pw); 4048 } 4049 } 4050 4051 /** 4052 * Request that the system start watching for the calling process to exceed a pss 4053 * size as given here. Once called, the system will look for any occasions where it 4054 * sees the associated process with a larger pss size and, when this happens, automatically 4055 * pull a heap dump from it and allow the user to share the data. Note that this request 4056 * continues running even if the process is killed and restarted. To remove the watch, 4057 * use {@link #clearWatchHeapLimit()}. 4058 * 4059 * <p>This API only work if the calling process has been marked as 4060 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 4061 * (userdebug or eng) build.</p> 4062 * 4063 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 4064 * handle heap limit reports themselves.</p> 4065 * 4066 * @param pssSize The size in bytes to set the limit at. 4067 */ 4068 public void setWatchHeapLimit(long pssSize) { 4069 try { 4070 getService().setDumpHeapDebugLimit(null, 0, pssSize, 4071 mContext.getPackageName()); 4072 } catch (RemoteException e) { 4073 throw e.rethrowFromSystemServer(); 4074 } 4075 } 4076 4077 /** 4078 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 4079 * If your package has an activity handling this action, it will be launched with the 4080 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 4081 * match the activty must support this action and a MIME type of "*/*". 4082 */ 4083 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 4084 4085 /** 4086 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 4087 */ 4088 public void clearWatchHeapLimit() { 4089 try { 4090 getService().setDumpHeapDebugLimit(null, 0, 0, null); 4091 } catch (RemoteException e) { 4092 throw e.rethrowFromSystemServer(); 4093 } 4094 } 4095 4096 /** 4097 * Return whether currently in lock task mode. When in this mode 4098 * no new tasks can be created or switched to. 4099 * 4100 * @see Activity#startLockTask() 4101 * 4102 * @deprecated Use {@link #getLockTaskModeState} instead. 4103 */ 4104 @Deprecated 4105 public boolean isInLockTaskMode() { 4106 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 4107 } 4108 4109 /** 4110 * Return the current state of task locking. The three possible outcomes 4111 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 4112 * and {@link #LOCK_TASK_MODE_PINNED}. 4113 * 4114 * @see Activity#startLockTask() 4115 */ 4116 public int getLockTaskModeState() { 4117 try { 4118 return getService().getLockTaskModeState(); 4119 } catch (RemoteException e) { 4120 throw e.rethrowFromSystemServer(); 4121 } 4122 } 4123 4124 /** 4125 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 4126 * thread can be a VR thread in a process at a time, and that thread may be subject to 4127 * restrictions on the amount of time it can run. 4128 * 4129 * If persistent VR mode is set, whatever thread has been granted aggressive scheduling via this 4130 * method will return to normal operation, and calling this method will do nothing while 4131 * persistent VR mode is enabled. 4132 * 4133 * To reset the VR thread for an application, a tid of 0 can be passed. 4134 * 4135 * @see android.os.Process#myTid() 4136 * @param tid tid of the VR thread 4137 */ 4138 public static void setVrThread(int tid) { 4139 try { 4140 getService().setVrThread(tid); 4141 } catch (RemoteException e) { 4142 // pass 4143 } 4144 } 4145 4146 /** 4147 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads that persist 4148 * beyond a single process. Only one thread can be a 4149 * persistent VR thread at a time, and that thread may be subject to restrictions on the amount 4150 * of time it can run. Calling this method will disable aggressive scheduling for non-persistent 4151 * VR threads set via {@link #setVrThread}. If persistent VR mode is disabled then the 4152 * persistent VR thread loses its new scheduling priority; this method must be called again to 4153 * set the persistent thread. 4154 * 4155 * To reset the persistent VR thread, a tid of 0 can be passed. 4156 * 4157 * @see android.os.Process#myTid() 4158 * @param tid tid of the VR thread 4159 * @hide 4160 */ 4161 @RequiresPermission(Manifest.permission.RESTRICTED_VR_ACCESS) 4162 public static void setPersistentVrThread(int tid) { 4163 try { 4164 getService().setPersistentVrThread(tid); 4165 } catch (RemoteException e) { 4166 // pass 4167 } 4168 } 4169 4170 /** 4171 * The AppTask allows you to manage your own application's tasks. 4172 * See {@link android.app.ActivityManager#getAppTasks()} 4173 */ 4174 public static class AppTask { 4175 private IAppTask mAppTaskImpl; 4176 4177 /** @hide */ 4178 public AppTask(IAppTask task) { 4179 mAppTaskImpl = task; 4180 } 4181 4182 /** 4183 * Finishes all activities in this task and removes it from the recent tasks list. 4184 */ 4185 public void finishAndRemoveTask() { 4186 try { 4187 mAppTaskImpl.finishAndRemoveTask(); 4188 } catch (RemoteException e) { 4189 throw e.rethrowFromSystemServer(); 4190 } 4191 } 4192 4193 /** 4194 * Get the RecentTaskInfo associated with this task. 4195 * 4196 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 4197 */ 4198 public RecentTaskInfo getTaskInfo() { 4199 try { 4200 return mAppTaskImpl.getTaskInfo(); 4201 } catch (RemoteException e) { 4202 throw e.rethrowFromSystemServer(); 4203 } 4204 } 4205 4206 /** 4207 * Bring this task to the foreground. If it contains activities, they will be 4208 * brought to the foreground with it and their instances re-created if needed. 4209 * If it doesn't contain activities, the root activity of the task will be 4210 * re-launched. 4211 */ 4212 public void moveToFront() { 4213 try { 4214 mAppTaskImpl.moveToFront(); 4215 } catch (RemoteException e) { 4216 throw e.rethrowFromSystemServer(); 4217 } 4218 } 4219 4220 /** 4221 * Start an activity in this task. Brings the task to the foreground. If this task 4222 * is not currently active (that is, its id < 0), then a new activity for the given 4223 * Intent will be launched as the root of the task and the task brought to the 4224 * foreground. Otherwise, if this task is currently active and the Intent does not specify 4225 * an activity to launch in a new task, then a new activity for the given Intent will 4226 * be launched on top of the task and the task brought to the foreground. If this 4227 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 4228 * or would otherwise be launched in to a new task, then the activity not launched but 4229 * this task be brought to the foreground and a new intent delivered to the top 4230 * activity if appropriate. 4231 * 4232 * <p>In other words, you generally want to use an Intent here that does not specify 4233 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 4234 * and let the system do the right thing.</p> 4235 * 4236 * @param intent The Intent describing the new activity to be launched on the task. 4237 * @param options Optional launch options. 4238 * 4239 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 4240 */ 4241 public void startActivity(Context context, Intent intent, Bundle options) { 4242 ActivityThread thread = ActivityThread.currentActivityThread(); 4243 thread.getInstrumentation().execStartActivityFromAppTask(context, 4244 thread.getApplicationThread(), mAppTaskImpl, intent, options); 4245 } 4246 4247 /** 4248 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 4249 * Intent of this AppTask. 4250 * 4251 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 4252 * be set; otherwise, it will be cleared. 4253 */ 4254 public void setExcludeFromRecents(boolean exclude) { 4255 try { 4256 mAppTaskImpl.setExcludeFromRecents(exclude); 4257 } catch (RemoteException e) { 4258 throw e.rethrowFromSystemServer(); 4259 } 4260 } 4261 } 4262} 4263