ActivityManager.java revision afb458f52cf0adaf5ea98477d0b2795a4a978d9f
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.app; 18 19import android.Manifest; 20import android.annotation.IntDef; 21import android.annotation.NonNull; 22import android.annotation.Nullable; 23import android.annotation.RequiresPermission; 24import android.annotation.SystemApi; 25import android.annotation.SystemService; 26import android.annotation.TestApi; 27import android.content.ComponentName; 28import android.content.Context; 29import android.content.Intent; 30import android.content.UriPermission; 31import android.content.pm.ActivityInfo; 32import android.content.pm.ApplicationInfo; 33import android.content.pm.ConfigurationInfo; 34import android.content.pm.IPackageDataObserver; 35import android.content.pm.PackageManager; 36import android.content.pm.ParceledListSlice; 37import android.content.pm.UserInfo; 38import android.content.res.Configuration; 39import android.content.res.Resources; 40import android.graphics.Bitmap; 41import android.graphics.Canvas; 42import android.graphics.Color; 43import android.graphics.GraphicBuffer; 44import android.graphics.Matrix; 45import android.graphics.Point; 46import android.graphics.Rect; 47import android.os.BatteryStats; 48import android.os.Build; 49import android.os.Build.VERSION_CODES; 50import android.os.Bundle; 51import android.os.Debug; 52import android.os.Handler; 53import android.os.IBinder; 54import android.os.Parcel; 55import android.os.ParcelFileDescriptor; 56import android.os.Parcelable; 57import android.os.Process; 58import android.os.RemoteException; 59import android.os.ServiceManager; 60import android.os.SystemProperties; 61import android.os.UserHandle; 62import android.text.TextUtils; 63import android.util.ArrayMap; 64import android.util.DisplayMetrics; 65import android.util.Singleton; 66import android.util.Size; 67 68import com.android.internal.app.procstats.ProcessStats; 69import com.android.internal.os.RoSystemProperties; 70import com.android.internal.os.TransferPipe; 71import com.android.internal.util.FastPrintWriter; 72import com.android.server.LocalServices; 73 74import org.xmlpull.v1.XmlSerializer; 75 76import java.io.FileDescriptor; 77import java.io.FileOutputStream; 78import java.io.IOException; 79import java.io.PrintWriter; 80import java.lang.annotation.Retention; 81import java.lang.annotation.RetentionPolicy; 82import java.util.ArrayList; 83import java.util.List; 84 85/** 86 * <p> 87 * This class gives information about, and interacts 88 * with, activities, services, and the containing 89 * process. 90 * </p> 91 * 92 * <p> 93 * A number of the methods in this class are for 94 * debugging or informational purposes and they should 95 * not be used to affect any runtime behavior of 96 * your app. These methods are called out as such in 97 * the method level documentation. 98 * </p> 99 * 100 *<p> 101 * Most application developers should not have the need to 102 * use this class, most of whose methods are for specialized 103 * use cases. However, a few methods are more broadly applicable. 104 * For instance, {@link android.app.ActivityManager#isLowRamDevice() isLowRamDevice()} 105 * enables your app to detect whether it is running on a low-memory device, 106 * and behave accordingly. 107 * {@link android.app.ActivityManager#clearApplicationUserData() clearApplicationUserData()} 108 * is for apps with reset-data functionality. 109 * </p> 110 * 111 * <p> 112 * In some special use cases, where an app interacts with 113 * its Task stack, the app may use the 114 * {@link android.app.ActivityManager.AppTask} and 115 * {@link android.app.ActivityManager.RecentTaskInfo} inner 116 * classes. However, in general, the methods in this class should 117 * be used for testing and debugging purposes only. 118 * </p> 119 */ 120@SystemService(Context.ACTIVITY_SERVICE) 121public class ActivityManager { 122 private static String TAG = "ActivityManager"; 123 124 private static int gMaxRecentTasks = -1; 125 126 private final Context mContext; 127 128 private static volatile boolean sSystemReady = false; 129 130 131 private static final int FIRST_START_FATAL_ERROR_CODE = -100; 132 private static final int LAST_START_FATAL_ERROR_CODE = -1; 133 private static final int FIRST_START_SUCCESS_CODE = 0; 134 private static final int LAST_START_SUCCESS_CODE = 99; 135 private static final int FIRST_START_NON_FATAL_ERROR_CODE = 100; 136 private static final int LAST_START_NON_FATAL_ERROR_CODE = 199; 137 138 /** 139 * System property to enable task snapshots. 140 * @hide 141 */ 142 public final static boolean ENABLE_TASK_SNAPSHOTS; 143 144 static { 145 ENABLE_TASK_SNAPSHOTS = SystemProperties.getBoolean("persist.enable_task_snapshots", true); 146 } 147 148 static final class UidObserver extends IUidObserver.Stub { 149 final OnUidImportanceListener mListener; 150 final Context mContext; 151 152 UidObserver(OnUidImportanceListener listener, Context clientContext) { 153 mListener = listener; 154 mContext = clientContext; 155 } 156 157 @Override 158 public void onUidStateChanged(int uid, int procState, long procStateSeq) { 159 mListener.onUidImportance(uid, RunningAppProcessInfo.procStateToImportanceForClient( 160 procState, mContext)); 161 } 162 163 @Override 164 public void onUidGone(int uid, boolean disabled) { 165 mListener.onUidImportance(uid, RunningAppProcessInfo.IMPORTANCE_GONE); 166 } 167 168 @Override 169 public void onUidActive(int uid) { 170 } 171 172 @Override 173 public void onUidIdle(int uid, boolean disabled) { 174 } 175 176 @Override public void onUidCachedChanged(int uid, boolean cached) { 177 } 178 } 179 180 final ArrayMap<OnUidImportanceListener, UidObserver> mImportanceListeners = new ArrayMap<>(); 181 182 /** 183 * Defines acceptable types of bugreports. 184 * @hide 185 */ 186 @Retention(RetentionPolicy.SOURCE) 187 @IntDef({ 188 BUGREPORT_OPTION_FULL, 189 BUGREPORT_OPTION_INTERACTIVE, 190 BUGREPORT_OPTION_REMOTE, 191 BUGREPORT_OPTION_WEAR, 192 BUGREPORT_OPTION_TELEPHONY 193 }) 194 public @interface BugreportMode {} 195 /** 196 * Takes a bugreport without user interference (and hence causing less 197 * interference to the system), but includes all sections. 198 * @hide 199 */ 200 public static final int BUGREPORT_OPTION_FULL = 0; 201 /** 202 * Allows user to monitor progress and enter additional data; might not include all 203 * sections. 204 * @hide 205 */ 206 public static final int BUGREPORT_OPTION_INTERACTIVE = 1; 207 /** 208 * Takes a bugreport requested remotely by administrator of the Device Owner app, 209 * not the device's user. 210 * @hide 211 */ 212 public static final int BUGREPORT_OPTION_REMOTE = 2; 213 /** 214 * Takes a bugreport on a wearable device. 215 * @hide 216 */ 217 public static final int BUGREPORT_OPTION_WEAR = 3; 218 219 /** 220 * Takes a lightweight version of bugreport that only includes a few, urgent sections 221 * used to report telephony bugs. 222 * @hide 223 */ 224 public static final int BUGREPORT_OPTION_TELEPHONY = 4; 225 226 /** 227 * <a href="{@docRoot}guide/topics/manifest/meta-data-element.html">{@code 228 * <meta-data>}</a> name for a 'home' Activity that declares a package that is to be 229 * uninstalled in lieu of the declaring one. The package named here must be 230 * signed with the same certificate as the one declaring the {@code <meta-data>}. 231 */ 232 public static final String META_HOME_ALTERNATE = "android.app.home.alternate"; 233 234 // NOTE: Before adding a new start result, please reference the defined ranges to ensure the 235 // result is properly categorized. 236 237 /** 238 * Result for IActivityManager.startVoiceActivity: active session is currently hidden. 239 * @hide 240 */ 241 public static final int START_VOICE_HIDDEN_SESSION = FIRST_START_FATAL_ERROR_CODE; 242 243 /** 244 * Result for IActivityManager.startVoiceActivity: active session does not match 245 * the requesting token. 246 * @hide 247 */ 248 public static final int START_VOICE_NOT_ACTIVE_SESSION = FIRST_START_FATAL_ERROR_CODE + 1; 249 250 /** 251 * Result for IActivityManager.startActivity: trying to start a background user 252 * activity that shouldn't be displayed for all users. 253 * @hide 254 */ 255 public static final int START_NOT_CURRENT_USER_ACTIVITY = FIRST_START_FATAL_ERROR_CODE + 2; 256 257 /** 258 * Result for IActivityManager.startActivity: trying to start an activity under voice 259 * control when that activity does not support the VOICE category. 260 * @hide 261 */ 262 public static final int START_NOT_VOICE_COMPATIBLE = FIRST_START_FATAL_ERROR_CODE + 3; 263 264 /** 265 * Result for IActivityManager.startActivity: an error where the 266 * start had to be canceled. 267 * @hide 268 */ 269 public static final int START_CANCELED = FIRST_START_FATAL_ERROR_CODE + 4; 270 271 /** 272 * Result for IActivityManager.startActivity: an error where the 273 * thing being started is not an activity. 274 * @hide 275 */ 276 public static final int START_NOT_ACTIVITY = FIRST_START_FATAL_ERROR_CODE + 5; 277 278 /** 279 * Result for IActivityManager.startActivity: an error where the 280 * caller does not have permission to start the activity. 281 * @hide 282 */ 283 public static final int START_PERMISSION_DENIED = FIRST_START_FATAL_ERROR_CODE + 6; 284 285 /** 286 * Result for IActivityManager.startActivity: an error where the 287 * caller has requested both to forward a result and to receive 288 * a result. 289 * @hide 290 */ 291 public static final int START_FORWARD_AND_REQUEST_CONFLICT = FIRST_START_FATAL_ERROR_CODE + 7; 292 293 /** 294 * Result for IActivityManager.startActivity: an error where the 295 * requested class is not found. 296 * @hide 297 */ 298 public static final int START_CLASS_NOT_FOUND = FIRST_START_FATAL_ERROR_CODE + 8; 299 300 /** 301 * Result for IActivityManager.startActivity: an error where the 302 * given Intent could not be resolved to an activity. 303 * @hide 304 */ 305 public static final int START_INTENT_NOT_RESOLVED = FIRST_START_FATAL_ERROR_CODE + 9; 306 307 /** 308 * Result for IActivityManager.startAssistantActivity: active session is currently hidden. 309 * @hide 310 */ 311 public static final int START_ASSISTANT_HIDDEN_SESSION = FIRST_START_FATAL_ERROR_CODE + 10; 312 313 /** 314 * Result for IActivityManager.startAssistantActivity: active session does not match 315 * the requesting token. 316 * @hide 317 */ 318 public static final int START_ASSISTANT_NOT_ACTIVE_SESSION = FIRST_START_FATAL_ERROR_CODE + 11; 319 320 /** 321 * Result for IActivityManaqer.startActivity: the activity was started 322 * successfully as normal. 323 * @hide 324 */ 325 public static final int START_SUCCESS = FIRST_START_SUCCESS_CODE; 326 327 /** 328 * Result for IActivityManaqer.startActivity: the caller asked that the Intent not 329 * be executed if it is the recipient, and that is indeed the case. 330 * @hide 331 */ 332 public static final int START_RETURN_INTENT_TO_CALLER = FIRST_START_SUCCESS_CODE + 1; 333 334 /** 335 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 336 * a task was simply brought to the foreground. 337 * @hide 338 */ 339 public static final int START_TASK_TO_FRONT = FIRST_START_SUCCESS_CODE + 2; 340 341 /** 342 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 343 * the given Intent was given to the existing top activity. 344 * @hide 345 */ 346 public static final int START_DELIVERED_TO_TOP = FIRST_START_SUCCESS_CODE + 3; 347 348 /** 349 * Result for IActivityManaqer.startActivity: request was canceled because 350 * app switches are temporarily canceled to ensure the user's last request 351 * (such as pressing home) is performed. 352 * @hide 353 */ 354 public static final int START_SWITCHES_CANCELED = FIRST_START_NON_FATAL_ERROR_CODE; 355 356 /** 357 * Result for IActivityManaqer.startActivity: a new activity was attempted to be started 358 * while in Lock Task Mode. 359 * @hide 360 */ 361 public static final int START_RETURN_LOCK_TASK_MODE_VIOLATION = 362 FIRST_START_NON_FATAL_ERROR_CODE + 1; 363 364 /** 365 * Result for IActivityManaqer.startActivity: a new activity start was aborted. Never returned 366 * externally. 367 * @hide 368 */ 369 public static final int START_ABORTED = FIRST_START_NON_FATAL_ERROR_CODE + 2; 370 371 /** 372 * Flag for IActivityManaqer.startActivity: do special start mode where 373 * a new activity is launched only if it is needed. 374 * @hide 375 */ 376 public static final int START_FLAG_ONLY_IF_NEEDED = 1<<0; 377 378 /** 379 * Flag for IActivityManaqer.startActivity: launch the app for 380 * debugging. 381 * @hide 382 */ 383 public static final int START_FLAG_DEBUG = 1<<1; 384 385 /** 386 * Flag for IActivityManaqer.startActivity: launch the app for 387 * allocation tracking. 388 * @hide 389 */ 390 public static final int START_FLAG_TRACK_ALLOCATION = 1<<2; 391 392 /** 393 * Flag for IActivityManaqer.startActivity: launch the app with 394 * native debugging support. 395 * @hide 396 */ 397 public static final int START_FLAG_NATIVE_DEBUGGING = 1<<3; 398 399 /** 400 * Result for IActivityManaqer.broadcastIntent: success! 401 * @hide 402 */ 403 public static final int BROADCAST_SUCCESS = 0; 404 405 /** 406 * Result for IActivityManaqer.broadcastIntent: attempt to broadcast 407 * a sticky intent without appropriate permission. 408 * @hide 409 */ 410 public static final int BROADCAST_STICKY_CANT_HAVE_PERMISSION = -1; 411 412 /** 413 * Result for IActivityManager.broadcastIntent: trying to send a broadcast 414 * to a stopped user. Fail. 415 * @hide 416 */ 417 public static final int BROADCAST_FAILED_USER_STOPPED = -2; 418 419 /** 420 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 421 * for a sendBroadcast operation. 422 * @hide 423 */ 424 public static final int INTENT_SENDER_BROADCAST = 1; 425 426 /** 427 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 428 * for a startActivity operation. 429 * @hide 430 */ 431 public static final int INTENT_SENDER_ACTIVITY = 2; 432 433 /** 434 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 435 * for an activity result operation. 436 * @hide 437 */ 438 public static final int INTENT_SENDER_ACTIVITY_RESULT = 3; 439 440 /** 441 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 442 * for a startService operation. 443 * @hide 444 */ 445 public static final int INTENT_SENDER_SERVICE = 4; 446 447 /** 448 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 449 * for a startForegroundService operation. 450 * @hide 451 */ 452 public static final int INTENT_SENDER_FOREGROUND_SERVICE = 5; 453 454 /** @hide User operation call: success! */ 455 public static final int USER_OP_SUCCESS = 0; 456 457 /** @hide User operation call: given user id is not known. */ 458 public static final int USER_OP_UNKNOWN_USER = -1; 459 460 /** @hide User operation call: given user id is the current user, can't be stopped. */ 461 public static final int USER_OP_IS_CURRENT = -2; 462 463 /** @hide User operation call: system user can't be stopped. */ 464 public static final int USER_OP_ERROR_IS_SYSTEM = -3; 465 466 /** @hide User operation call: one of related users cannot be stopped. */ 467 public static final int USER_OP_ERROR_RELATED_USERS_CANNOT_STOP = -4; 468 469 /** @hide Not a real process state. */ 470 public static final int PROCESS_STATE_UNKNOWN = -1; 471 472 /** @hide Process is a persistent system process. */ 473 public static final int PROCESS_STATE_PERSISTENT = 0; 474 475 /** @hide Process is a persistent system process and is doing UI. */ 476 public static final int PROCESS_STATE_PERSISTENT_UI = 1; 477 478 /** @hide Process is hosting the current top activities. Note that this covers 479 * all activities that are visible to the user. */ 480 public static final int PROCESS_STATE_TOP = 2; 481 482 /** @hide Process is hosting a foreground service due to a system binding. */ 483 public static final int PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 3; 484 485 /** @hide Process is hosting a foreground service. */ 486 public static final int PROCESS_STATE_FOREGROUND_SERVICE = 4; 487 488 /** @hide Same as {@link #PROCESS_STATE_TOP} but while device is sleeping. */ 489 public static final int PROCESS_STATE_TOP_SLEEPING = 5; 490 491 /** @hide Process is important to the user, and something they are aware of. */ 492 public static final int PROCESS_STATE_IMPORTANT_FOREGROUND = 6; 493 494 /** @hide Process is important to the user, but not something they are aware of. */ 495 public static final int PROCESS_STATE_IMPORTANT_BACKGROUND = 7; 496 497 /** @hide Process is in the background transient so we will try to keep running. */ 498 public static final int PROCESS_STATE_TRANSIENT_BACKGROUND = 8; 499 500 /** @hide Process is in the background running a backup/restore operation. */ 501 public static final int PROCESS_STATE_BACKUP = 9; 502 503 /** @hide Process is in the background, but it can't restore its state so we want 504 * to try to avoid killing it. */ 505 public static final int PROCESS_STATE_HEAVY_WEIGHT = 10; 506 507 /** @hide Process is in the background running a service. Unlike oom_adj, this level 508 * is used for both the normal running in background state and the executing 509 * operations state. */ 510 public static final int PROCESS_STATE_SERVICE = 11; 511 512 /** @hide Process is in the background running a receiver. Note that from the 513 * perspective of oom_adj receivers run at a higher foreground level, but for our 514 * prioritization here that is not necessary and putting them below services means 515 * many fewer changes in some process states as they receive broadcasts. */ 516 public static final int PROCESS_STATE_RECEIVER = 12; 517 518 /** @hide Process is in the background but hosts the home activity. */ 519 public static final int PROCESS_STATE_HOME = 13; 520 521 /** @hide Process is in the background but hosts the last shown activity. */ 522 public static final int PROCESS_STATE_LAST_ACTIVITY = 14; 523 524 /** @hide Process is being cached for later use and contains activities. */ 525 public static final int PROCESS_STATE_CACHED_ACTIVITY = 15; 526 527 /** @hide Process is being cached for later use and is a client of another cached 528 * process that contains activities. */ 529 public static final int PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 16; 530 531 /** @hide Process is being cached for later use and is empty. */ 532 public static final int PROCESS_STATE_CACHED_EMPTY = 17; 533 534 /** @hide Process does not exist. */ 535 public static final int PROCESS_STATE_NONEXISTENT = 18; 536 537 /** @hide The lowest process state number */ 538 public static final int MIN_PROCESS_STATE = PROCESS_STATE_PERSISTENT; 539 540 /** @hide The highest process state number */ 541 public static final int MAX_PROCESS_STATE = PROCESS_STATE_NONEXISTENT; 542 543 /** @hide Should this process state be considered a background state? */ 544 public static final boolean isProcStateBackground(int procState) { 545 return procState >= PROCESS_STATE_TRANSIENT_BACKGROUND; 546 } 547 548 /** @hide requestType for assist context: only basic information. */ 549 public static final int ASSIST_CONTEXT_BASIC = 0; 550 551 /** @hide requestType for assist context: generate full AssistStructure. */ 552 public static final int ASSIST_CONTEXT_FULL = 1; 553 554 /** @hide requestType for assist context: generate full AssistStructure for autofill. */ 555 public static final int ASSIST_CONTEXT_AUTOFILL = 2; 556 557 /** @hide Flag for registerUidObserver: report changes in process state. */ 558 public static final int UID_OBSERVER_PROCSTATE = 1<<0; 559 560 /** @hide Flag for registerUidObserver: report uid gone. */ 561 public static final int UID_OBSERVER_GONE = 1<<1; 562 563 /** @hide Flag for registerUidObserver: report uid has become idle. */ 564 public static final int UID_OBSERVER_IDLE = 1<<2; 565 566 /** @hide Flag for registerUidObserver: report uid has become active. */ 567 public static final int UID_OBSERVER_ACTIVE = 1<<3; 568 569 /** @hide Flag for registerUidObserver: report uid cached state has changed. */ 570 public static final int UID_OBSERVER_CACHED = 1<<4; 571 572 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: normal free-to-run operation. */ 573 public static final int APP_START_MODE_NORMAL = 0; 574 575 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later. */ 576 public static final int APP_START_MODE_DELAYED = 1; 577 578 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later, with 579 * rigid errors (throwing exception). */ 580 public static final int APP_START_MODE_DELAYED_RIGID = 2; 581 582 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: disable/cancel pending 583 * launches; this is the mode for ephemeral apps. */ 584 public static final int APP_START_MODE_DISABLED = 3; 585 586 /** 587 * Lock task mode is not active. 588 */ 589 public static final int LOCK_TASK_MODE_NONE = 0; 590 591 /** 592 * Full lock task mode is active. 593 */ 594 public static final int LOCK_TASK_MODE_LOCKED = 1; 595 596 /** 597 * App pinning mode is active. 598 */ 599 public static final int LOCK_TASK_MODE_PINNED = 2; 600 601 Point mAppTaskThumbnailSize; 602 603 /*package*/ ActivityManager(Context context, Handler handler) { 604 mContext = context; 605 } 606 607 /** 608 * Returns whether the launch was successful. 609 * @hide 610 */ 611 public static final boolean isStartResultSuccessful(int result) { 612 return FIRST_START_SUCCESS_CODE <= result && result <= LAST_START_SUCCESS_CODE; 613 } 614 615 /** 616 * Returns whether the launch result was a fatal error. 617 * @hide 618 */ 619 public static final boolean isStartResultFatalError(int result) { 620 return FIRST_START_FATAL_ERROR_CODE <= result && result <= LAST_START_FATAL_ERROR_CODE; 621 } 622 623 /** 624 * Screen compatibility mode: the application most always run in 625 * compatibility mode. 626 * @hide 627 */ 628 public static final int COMPAT_MODE_ALWAYS = -1; 629 630 /** 631 * Screen compatibility mode: the application can never run in 632 * compatibility mode. 633 * @hide 634 */ 635 public static final int COMPAT_MODE_NEVER = -2; 636 637 /** 638 * Screen compatibility mode: unknown. 639 * @hide 640 */ 641 public static final int COMPAT_MODE_UNKNOWN = -3; 642 643 /** 644 * Screen compatibility mode: the application currently has compatibility 645 * mode disabled. 646 * @hide 647 */ 648 public static final int COMPAT_MODE_DISABLED = 0; 649 650 /** 651 * Screen compatibility mode: the application currently has compatibility 652 * mode enabled. 653 * @hide 654 */ 655 public static final int COMPAT_MODE_ENABLED = 1; 656 657 /** 658 * Screen compatibility mode: request to toggle the application's 659 * compatibility mode. 660 * @hide 661 */ 662 public static final int COMPAT_MODE_TOGGLE = 2; 663 664 private static final boolean DEVELOPMENT_FORCE_LOW_RAM = 665 SystemProperties.getBoolean("debug.force_low_ram", false); 666 667 /** @hide */ 668 public static class StackId { 669 /** Invalid stack ID. */ 670 public static final int INVALID_STACK_ID = -1; 671 672 /** First static stack ID. */ 673 public static final int FIRST_STATIC_STACK_ID = 0; 674 675 /** Home activity stack ID. */ 676 public static final int HOME_STACK_ID = FIRST_STATIC_STACK_ID; 677 678 /** ID of stack where fullscreen activities are normally launched into. */ 679 public static final int FULLSCREEN_WORKSPACE_STACK_ID = 1; 680 681 /** ID of stack where freeform/resized activities are normally launched into. */ 682 public static final int FREEFORM_WORKSPACE_STACK_ID = FULLSCREEN_WORKSPACE_STACK_ID + 1; 683 684 /** ID of stack that occupies a dedicated region of the screen. */ 685 public static final int DOCKED_STACK_ID = FREEFORM_WORKSPACE_STACK_ID + 1; 686 687 /** ID of stack that always on top (always visible) when it exist. */ 688 public static final int PINNED_STACK_ID = DOCKED_STACK_ID + 1; 689 690 /** ID of stack that contains the Recents activity. */ 691 public static final int RECENTS_STACK_ID = PINNED_STACK_ID + 1; 692 693 /** ID of stack that contains activities launched by the assistant. */ 694 public static final int ASSISTANT_STACK_ID = RECENTS_STACK_ID + 1; 695 696 /** Last static stack stack ID. */ 697 public static final int LAST_STATIC_STACK_ID = ASSISTANT_STACK_ID; 698 699 /** Start of ID range used by stacks that are created dynamically. */ 700 public static final int FIRST_DYNAMIC_STACK_ID = LAST_STATIC_STACK_ID + 1; 701 702 // TODO: Figure-out a way to remove this. 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 public static boolean isDynamicStack(int stackId) { 710 return stackId >= FIRST_DYNAMIC_STACK_ID; 711 } 712 713 /** 714 * Returns true if dynamic stacks are allowed to be visible behind the input stack. 715 */ 716 // TODO: Figure-out a way to remove. 717 public static boolean isDynamicStacksVisibleBehindAllowed(int stackId) { 718 return stackId == PINNED_STACK_ID || stackId == ASSISTANT_STACK_ID; 719 } 720 721 /** 722 * Returns true if we try to maintain focus in the current stack when the top activity 723 * finishes. 724 */ 725 // TODO: Figure-out a way to remove. Probably isn't needed in the new world... 726 public static boolean keepFocusInStackIfPossible(int stackId) { 727 return stackId == FREEFORM_WORKSPACE_STACK_ID 728 || stackId == DOCKED_STACK_ID || stackId == PINNED_STACK_ID; 729 } 730 731 /** 732 * Returns true if Stack size is affected by the docked stack changing size. 733 */ 734 // TODO: Figure-out a way to remove. 735 public static boolean isResizeableByDockedStack(int stackId) { 736 return isStaticStack(stackId) && stackId != DOCKED_STACK_ID 737 && stackId != PINNED_STACK_ID && stackId != ASSISTANT_STACK_ID; 738 } 739 740 /** 741 * Returns true if the size of tasks in the input stack are affected by the docked stack 742 * changing size. 743 */ 744 // TODO: What is the difference between this method and the one above?? 745 public static boolean isTaskResizeableByDockedStack(int stackId) { 746 return isStaticStack(stackId) && stackId != FREEFORM_WORKSPACE_STACK_ID 747 && stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID 748 && stackId != ASSISTANT_STACK_ID; 749 } 750 751 /** 752 * Returns true if the input stack is affected by drag resizing. 753 */ 754 public static boolean isStackAffectedByDragResizing(int stackId) { 755 return isStaticStack(stackId) && stackId != PINNED_STACK_ID 756 && stackId != ASSISTANT_STACK_ID; 757 } 758 759 /** 760 * Returns true if the windows of tasks being moved to the target stack from the source 761 * stack should be replaced, meaning that window manager will keep the old window around 762 * until the new is ready. 763 */ 764 public static boolean replaceWindowsOnTaskMove(int sourceStackId, int targetStackId) { 765 return sourceStackId == FREEFORM_WORKSPACE_STACK_ID 766 || targetStackId == FREEFORM_WORKSPACE_STACK_ID; 767 } 768 769 /** 770 * Return whether a stackId is a stack that be a backdrop to a translucent activity. These 771 * are generally fullscreen stacks. 772 */ 773 public static boolean isBackdropToTranslucentActivity(int stackId) { 774 return stackId == FULLSCREEN_WORKSPACE_STACK_ID 775 || stackId == ASSISTANT_STACK_ID; 776 } 777 778 /** 779 * Returns true if animation specs should be constructed for app transition that moves 780 * the task to the specified stack. 781 */ 782 public static boolean useAnimationSpecForAppTransition(int stackId) { 783 // TODO: INVALID_STACK_ID is also animated because we don't persist stack id's across 784 // reboots. 785 return stackId == FREEFORM_WORKSPACE_STACK_ID 786 || stackId == FULLSCREEN_WORKSPACE_STACK_ID 787 || stackId == ASSISTANT_STACK_ID 788 || stackId == DOCKED_STACK_ID 789 || stackId == INVALID_STACK_ID; 790 } 791 792 /** 793 * Returns true if activities from stasks in the given {@param stackId} are allowed to 794 * enter picture-in-picture. 795 */ 796 public static boolean isAllowedToEnterPictureInPicture(int stackId) { 797 return stackId != HOME_STACK_ID && stackId != ASSISTANT_STACK_ID && 798 stackId != RECENTS_STACK_ID; 799 } 800 801 /** 802 * Returns true if the top task in the task is allowed to return home when finished and 803 * there are other tasks in the stack. 804 */ 805 public static boolean allowTopTaskToReturnHome(int stackId) { 806 return stackId != PINNED_STACK_ID; 807 } 808 809 /** 810 * Returns true if the stack should be resized to match the bounds specified by 811 * {@link ActivityOptions#setLaunchBounds} when launching an activity into the stack. 812 */ 813 public static boolean resizeStackWithLaunchBounds(int stackId) { 814 return stackId == PINNED_STACK_ID; 815 } 816 817 /** 818 * Returns true if a window from the specified stack with {@param stackId} are normally 819 * fullscreen, i. e. they can become the top opaque fullscreen window, meaning that it 820 * controls system bars, lockscreen occluded/dismissing state, screen rotation animation, 821 * etc. 822 */ 823 // TODO: What about the other side of docked stack if we move this to WindowConfiguration? 824 public static boolean normallyFullscreenWindows(int stackId) { 825 return stackId != PINNED_STACK_ID && stackId != FREEFORM_WORKSPACE_STACK_ID 826 && stackId != DOCKED_STACK_ID; 827 } 828 829 /** 830 * Returns true if the input stack id should only be present on a device that supports 831 * multi-window mode. 832 * @see android.app.ActivityManager#supportsMultiWindow 833 */ 834 // TODO: What about the other side of docked stack if we move this to WindowConfiguration? 835 public static boolean isMultiWindowStack(int stackId) { 836 return stackId == PINNED_STACK_ID || stackId == FREEFORM_WORKSPACE_STACK_ID 837 || stackId == DOCKED_STACK_ID; 838 } 839 840 /** 841 * Returns true if the input {@param stackId} is HOME_STACK_ID or RECENTS_STACK_ID 842 */ 843 public static boolean isHomeOrRecentsStack(int stackId) { 844 return stackId == HOME_STACK_ID || stackId == RECENTS_STACK_ID; 845 } 846 847 /** Returns true if the input stack and its content can affect the device orientation. */ 848 public static boolean canSpecifyOrientation(int stackId) { 849 return stackId == HOME_STACK_ID 850 || stackId == RECENTS_STACK_ID 851 || stackId == FULLSCREEN_WORKSPACE_STACK_ID 852 || stackId == ASSISTANT_STACK_ID 853 || isDynamicStack(stackId); 854 } 855 } 856 857 /** 858 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 859 * specifies the position of the created docked stack at the top half of the screen if 860 * in portrait mode or at the left half of the screen if in landscape mode. 861 * @hide 862 */ 863 public static final int DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT = 0; 864 865 /** 866 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 867 * specifies the position of the created docked stack at the bottom half of the screen if 868 * in portrait mode or at the right half of the screen if in landscape mode. 869 * @hide 870 */ 871 public static final int DOCKED_STACK_CREATE_MODE_BOTTOM_OR_RIGHT = 1; 872 873 /** 874 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 875 * that the resize doesn't need to preserve the window, and can be skipped if bounds 876 * is unchanged. This mode is used by window manager in most cases. 877 * @hide 878 */ 879 public static final int RESIZE_MODE_SYSTEM = 0; 880 881 /** 882 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 883 * that the resize should preserve the window if possible. 884 * @hide 885 */ 886 public static final int RESIZE_MODE_PRESERVE_WINDOW = (0x1 << 0); 887 888 /** 889 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 890 * that the resize should be performed even if the bounds appears unchanged. 891 * @hide 892 */ 893 public static final int RESIZE_MODE_FORCED = (0x1 << 1); 894 895 /** 896 * Input parameter to {@link android.app.IActivityManager#resizeTask} used by window 897 * manager during a screen rotation. 898 * @hide 899 */ 900 public static final int RESIZE_MODE_SYSTEM_SCREEN_ROTATION = RESIZE_MODE_PRESERVE_WINDOW; 901 902 /** 903 * Input parameter to {@link android.app.IActivityManager#resizeTask} used when the 904 * resize is due to a drag action. 905 * @hide 906 */ 907 public static final int RESIZE_MODE_USER = RESIZE_MODE_PRESERVE_WINDOW; 908 909 /** 910 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 911 * that the resize should preserve the window if possible, and should not be skipped 912 * even if the bounds is unchanged. Usually used to force a resizing when a drag action 913 * is ending. 914 * @hide 915 */ 916 public static final int RESIZE_MODE_USER_FORCED = 917 RESIZE_MODE_PRESERVE_WINDOW | RESIZE_MODE_FORCED; 918 919 /** @hide */ 920 public int getFrontActivityScreenCompatMode() { 921 try { 922 return getService().getFrontActivityScreenCompatMode(); 923 } catch (RemoteException e) { 924 throw e.rethrowFromSystemServer(); 925 } 926 } 927 928 /** @hide */ 929 public void setFrontActivityScreenCompatMode(int mode) { 930 try { 931 getService().setFrontActivityScreenCompatMode(mode); 932 } catch (RemoteException e) { 933 throw e.rethrowFromSystemServer(); 934 } 935 } 936 937 /** @hide */ 938 public int getPackageScreenCompatMode(String packageName) { 939 try { 940 return getService().getPackageScreenCompatMode(packageName); 941 } catch (RemoteException e) { 942 throw e.rethrowFromSystemServer(); 943 } 944 } 945 946 /** @hide */ 947 public void setPackageScreenCompatMode(String packageName, int mode) { 948 try { 949 getService().setPackageScreenCompatMode(packageName, mode); 950 } catch (RemoteException e) { 951 throw e.rethrowFromSystemServer(); 952 } 953 } 954 955 /** @hide */ 956 public boolean getPackageAskScreenCompat(String packageName) { 957 try { 958 return getService().getPackageAskScreenCompat(packageName); 959 } catch (RemoteException e) { 960 throw e.rethrowFromSystemServer(); 961 } 962 } 963 964 /** @hide */ 965 public void setPackageAskScreenCompat(String packageName, boolean ask) { 966 try { 967 getService().setPackageAskScreenCompat(packageName, ask); 968 } catch (RemoteException e) { 969 throw e.rethrowFromSystemServer(); 970 } 971 } 972 973 /** 974 * Return the approximate per-application memory class of the current 975 * device. This gives you an idea of how hard a memory limit you should 976 * impose on your application to let the overall system work best. The 977 * returned value is in megabytes; the baseline Android memory class is 978 * 16 (which happens to be the Java heap limit of those devices); some 979 * device with more memory may return 24 or even higher numbers. 980 */ 981 public int getMemoryClass() { 982 return staticGetMemoryClass(); 983 } 984 985 /** @hide */ 986 static public int staticGetMemoryClass() { 987 // Really brain dead right now -- just take this from the configured 988 // vm heap size, and assume it is in megabytes and thus ends with "m". 989 String vmHeapSize = SystemProperties.get("dalvik.vm.heapgrowthlimit", ""); 990 if (vmHeapSize != null && !"".equals(vmHeapSize)) { 991 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1)); 992 } 993 return staticGetLargeMemoryClass(); 994 } 995 996 /** 997 * Return the approximate per-application memory class of the current 998 * device when an application is running with a large heap. This is the 999 * space available for memory-intensive applications; most applications 1000 * should not need this amount of memory, and should instead stay with the 1001 * {@link #getMemoryClass()} limit. The returned value is in megabytes. 1002 * This may be the same size as {@link #getMemoryClass()} on memory 1003 * constrained devices, or it may be significantly larger on devices with 1004 * a large amount of available RAM. 1005 * 1006 * <p>The is the size of the application's Dalvik heap if it has 1007 * specified <code>android:largeHeap="true"</code> in its manifest. 1008 */ 1009 public int getLargeMemoryClass() { 1010 return staticGetLargeMemoryClass(); 1011 } 1012 1013 /** @hide */ 1014 static public int staticGetLargeMemoryClass() { 1015 // Really brain dead right now -- just take this from the configured 1016 // vm heap size, and assume it is in megabytes and thus ends with "m". 1017 String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m"); 1018 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1)); 1019 } 1020 1021 /** 1022 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 1023 * is ultimately up to the device configuration, but currently it generally means 1024 * something in the class of a 512MB device with about a 800x480 or less screen. 1025 * This is mostly intended to be used by apps to determine whether they should turn 1026 * off certain features that require more RAM. 1027 */ 1028 public boolean isLowRamDevice() { 1029 return isLowRamDeviceStatic(); 1030 } 1031 1032 /** @hide */ 1033 public static boolean isLowRamDeviceStatic() { 1034 return RoSystemProperties.CONFIG_LOW_RAM || 1035 (Build.IS_DEBUGGABLE && DEVELOPMENT_FORCE_LOW_RAM); 1036 } 1037 1038 /** 1039 * Returns true if this is a small battery device. Exactly whether a device is considered to be 1040 * small battery is ultimately up to the device configuration, but currently it generally means 1041 * something in the class of a device with 1000 mAh or less. This is mostly intended to be used 1042 * to determine whether certain features should be altered to account for a drastically smaller 1043 * battery. 1044 * @hide 1045 */ 1046 public static boolean isSmallBatteryDevice() { 1047 return RoSystemProperties.CONFIG_SMALL_BATTERY; 1048 } 1049 1050 /** 1051 * Used by persistent processes to determine if they are running on a 1052 * higher-end device so should be okay using hardware drawing acceleration 1053 * (which tends to consume a lot more RAM). 1054 * @hide 1055 */ 1056 static public boolean isHighEndGfx() { 1057 return !isLowRamDeviceStatic() && 1058 !Resources.getSystem().getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 1059 } 1060 1061 /** 1062 * Return the maximum number of recents entries that we will maintain and show. 1063 * @hide 1064 */ 1065 static public int getMaxRecentTasksStatic() { 1066 if (gMaxRecentTasks < 0) { 1067 return gMaxRecentTasks = isLowRamDeviceStatic() ? 36 : 48; 1068 } 1069 return gMaxRecentTasks; 1070 } 1071 1072 /** 1073 * Return the default limit on the number of recents that an app can make. 1074 * @hide 1075 */ 1076 static public int getDefaultAppRecentsLimitStatic() { 1077 return getMaxRecentTasksStatic() / 6; 1078 } 1079 1080 /** 1081 * Return the maximum limit on the number of recents that an app can make. 1082 * @hide 1083 */ 1084 static public int getMaxAppRecentsLimitStatic() { 1085 return getMaxRecentTasksStatic() / 2; 1086 } 1087 1088 /** 1089 * Returns true if the system supports at least one form of multi-window. 1090 * E.g. freeform, split-screen, picture-in-picture. 1091 * @hide 1092 */ 1093 static public boolean supportsMultiWindow(Context context) { 1094 // On watches, multi-window is used to present essential system UI, and thus it must be 1095 // supported regardless of device memory characteristics. 1096 boolean isWatch = context.getPackageManager().hasSystemFeature( 1097 PackageManager.FEATURE_WATCH); 1098 return (!isLowRamDeviceStatic() || isWatch) 1099 && Resources.getSystem().getBoolean( 1100 com.android.internal.R.bool.config_supportsMultiWindow); 1101 } 1102 1103 /** 1104 * Returns true if the system supports split screen multi-window. 1105 * @hide 1106 */ 1107 static public boolean supportsSplitScreenMultiWindow(Context context) { 1108 return supportsMultiWindow(context) 1109 && Resources.getSystem().getBoolean( 1110 com.android.internal.R.bool.config_supportsSplitScreenMultiWindow); 1111 } 1112 1113 /** @removed */ 1114 @Deprecated 1115 public static int getMaxNumPictureInPictureActions() { 1116 return 3; 1117 } 1118 1119 /** 1120 * Information you can set and retrieve about the current activity within the recent task list. 1121 */ 1122 public static class TaskDescription implements Parcelable { 1123 /** @hide */ 1124 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 1125 private static final String ATTR_TASKDESCRIPTIONLABEL = 1126 ATTR_TASKDESCRIPTION_PREFIX + "label"; 1127 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 1128 ATTR_TASKDESCRIPTION_PREFIX + "color"; 1129 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 1130 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 1131 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 1132 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 1133 1134 private String mLabel; 1135 private Bitmap mIcon; 1136 private String mIconFilename; 1137 private int mColorPrimary; 1138 private int mColorBackground; 1139 private int mStatusBarColor; 1140 private int mNavigationBarColor; 1141 1142 /** 1143 * Creates the TaskDescription to the specified values. 1144 * 1145 * @param label A label and description of the current state of this task. 1146 * @param icon An icon that represents the current state of this task. 1147 * @param colorPrimary A color to override the theme's primary color. This color must be 1148 * opaque. 1149 */ 1150 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 1151 this(label, icon, null, colorPrimary, 0, 0, 0); 1152 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1153 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1154 } 1155 } 1156 1157 /** 1158 * Creates the TaskDescription to the specified values. 1159 * 1160 * @param label A label and description of the current state of this activity. 1161 * @param icon An icon that represents the current state of this activity. 1162 */ 1163 public TaskDescription(String label, Bitmap icon) { 1164 this(label, icon, null, 0, 0, 0, 0); 1165 } 1166 1167 /** 1168 * Creates the TaskDescription to the specified values. 1169 * 1170 * @param label A label and description of the current state of this activity. 1171 */ 1172 public TaskDescription(String label) { 1173 this(label, null, null, 0, 0, 0, 0); 1174 } 1175 1176 /** 1177 * Creates an empty TaskDescription. 1178 */ 1179 public TaskDescription() { 1180 this(null, null, null, 0, 0, 0, 0); 1181 } 1182 1183 /** @hide */ 1184 public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary, 1185 int colorBackground, int statusBarColor, int navigationBarColor) { 1186 mLabel = label; 1187 mIcon = icon; 1188 mIconFilename = iconFilename; 1189 mColorPrimary = colorPrimary; 1190 mColorBackground = colorBackground; 1191 mStatusBarColor = statusBarColor; 1192 mNavigationBarColor = navigationBarColor; 1193 } 1194 1195 /** 1196 * Creates a copy of another TaskDescription. 1197 */ 1198 public TaskDescription(TaskDescription td) { 1199 copyFrom(td); 1200 } 1201 1202 /** 1203 * Copies this the values from another TaskDescription. 1204 * @hide 1205 */ 1206 public void copyFrom(TaskDescription other) { 1207 mLabel = other.mLabel; 1208 mIcon = other.mIcon; 1209 mIconFilename = other.mIconFilename; 1210 mColorPrimary = other.mColorPrimary; 1211 mColorBackground = other.mColorBackground; 1212 mStatusBarColor = other.mStatusBarColor; 1213 mNavigationBarColor = other.mNavigationBarColor; 1214 } 1215 1216 /** 1217 * Copies this the values from another TaskDescription, but preserves the hidden fields 1218 * if they weren't set on {@code other} 1219 * @hide 1220 */ 1221 public void copyFromPreserveHiddenFields(TaskDescription other) { 1222 mLabel = other.mLabel; 1223 mIcon = other.mIcon; 1224 mIconFilename = other.mIconFilename; 1225 mColorPrimary = other.mColorPrimary; 1226 if (other.mColorBackground != 0) { 1227 mColorBackground = other.mColorBackground; 1228 } 1229 if (other.mStatusBarColor != 0) { 1230 mStatusBarColor = other.mStatusBarColor; 1231 } 1232 if (other.mNavigationBarColor != 0) { 1233 mNavigationBarColor = other.mNavigationBarColor; 1234 } 1235 } 1236 1237 private TaskDescription(Parcel source) { 1238 readFromParcel(source); 1239 } 1240 1241 /** 1242 * Sets the label for this task description. 1243 * @hide 1244 */ 1245 public void setLabel(String label) { 1246 mLabel = label; 1247 } 1248 1249 /** 1250 * Sets the primary color for this task description. 1251 * @hide 1252 */ 1253 public void setPrimaryColor(int primaryColor) { 1254 // Ensure that the given color is valid 1255 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1256 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1257 } 1258 mColorPrimary = primaryColor; 1259 } 1260 1261 /** 1262 * Sets the background color for this task description. 1263 * @hide 1264 */ 1265 public void setBackgroundColor(int backgroundColor) { 1266 // Ensure that the given color is valid 1267 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1268 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1269 } 1270 mColorBackground = backgroundColor; 1271 } 1272 1273 /** 1274 * @hide 1275 */ 1276 public void setStatusBarColor(int statusBarColor) { 1277 mStatusBarColor = statusBarColor; 1278 } 1279 1280 /** 1281 * @hide 1282 */ 1283 public void setNavigationBarColor(int navigationBarColor) { 1284 mNavigationBarColor = navigationBarColor; 1285 } 1286 1287 /** 1288 * Sets the icon for this task description. 1289 * @hide 1290 */ 1291 public void setIcon(Bitmap icon) { 1292 mIcon = icon; 1293 } 1294 1295 /** 1296 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1297 * bitmap. 1298 * @hide 1299 */ 1300 public void setIconFilename(String iconFilename) { 1301 mIconFilename = iconFilename; 1302 mIcon = null; 1303 } 1304 1305 /** 1306 * @return The label and description of the current state of this task. 1307 */ 1308 public String getLabel() { 1309 return mLabel; 1310 } 1311 1312 /** 1313 * @return The icon that represents the current state of this task. 1314 */ 1315 public Bitmap getIcon() { 1316 if (mIcon != null) { 1317 return mIcon; 1318 } 1319 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1320 } 1321 1322 /** @hide */ 1323 public String getIconFilename() { 1324 return mIconFilename; 1325 } 1326 1327 /** @hide */ 1328 public Bitmap getInMemoryIcon() { 1329 return mIcon; 1330 } 1331 1332 /** @hide */ 1333 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1334 if (iconFilename != null) { 1335 try { 1336 return getService().getTaskDescriptionIcon(iconFilename, 1337 userId); 1338 } catch (RemoteException e) { 1339 throw e.rethrowFromSystemServer(); 1340 } 1341 } 1342 return null; 1343 } 1344 1345 /** 1346 * @return The color override on the theme's primary color. 1347 */ 1348 public int getPrimaryColor() { 1349 return mColorPrimary; 1350 } 1351 1352 /** 1353 * @return The background color. 1354 * @hide 1355 */ 1356 public int getBackgroundColor() { 1357 return mColorBackground; 1358 } 1359 1360 /** 1361 * @hide 1362 */ 1363 public int getStatusBarColor() { 1364 return mStatusBarColor; 1365 } 1366 1367 /** 1368 * @hide 1369 */ 1370 public int getNavigationBarColor() { 1371 return mNavigationBarColor; 1372 } 1373 1374 /** @hide */ 1375 public void saveToXml(XmlSerializer out) throws IOException { 1376 if (mLabel != null) { 1377 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1378 } 1379 if (mColorPrimary != 0) { 1380 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1381 Integer.toHexString(mColorPrimary)); 1382 } 1383 if (mColorBackground != 0) { 1384 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1385 Integer.toHexString(mColorBackground)); 1386 } 1387 if (mIconFilename != null) { 1388 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 1389 } 1390 } 1391 1392 /** @hide */ 1393 public void restoreFromXml(String attrName, String attrValue) { 1394 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1395 setLabel(attrValue); 1396 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1397 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1398 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1399 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1400 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 1401 setIconFilename(attrValue); 1402 } 1403 } 1404 1405 @Override 1406 public int describeContents() { 1407 return 0; 1408 } 1409 1410 @Override 1411 public void writeToParcel(Parcel dest, int flags) { 1412 if (mLabel == null) { 1413 dest.writeInt(0); 1414 } else { 1415 dest.writeInt(1); 1416 dest.writeString(mLabel); 1417 } 1418 if (mIcon == null) { 1419 dest.writeInt(0); 1420 } else { 1421 dest.writeInt(1); 1422 mIcon.writeToParcel(dest, 0); 1423 } 1424 dest.writeInt(mColorPrimary); 1425 dest.writeInt(mColorBackground); 1426 dest.writeInt(mStatusBarColor); 1427 dest.writeInt(mNavigationBarColor); 1428 if (mIconFilename == null) { 1429 dest.writeInt(0); 1430 } else { 1431 dest.writeInt(1); 1432 dest.writeString(mIconFilename); 1433 } 1434 } 1435 1436 public void readFromParcel(Parcel source) { 1437 mLabel = source.readInt() > 0 ? source.readString() : null; 1438 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1439 mColorPrimary = source.readInt(); 1440 mColorBackground = source.readInt(); 1441 mStatusBarColor = source.readInt(); 1442 mNavigationBarColor = source.readInt(); 1443 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1444 } 1445 1446 public static final Creator<TaskDescription> CREATOR 1447 = new Creator<TaskDescription>() { 1448 public TaskDescription createFromParcel(Parcel source) { 1449 return new TaskDescription(source); 1450 } 1451 public TaskDescription[] newArray(int size) { 1452 return new TaskDescription[size]; 1453 } 1454 }; 1455 1456 @Override 1457 public String toString() { 1458 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1459 " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary + 1460 " colorBackground: " + mColorBackground + 1461 " statusBarColor: " + mColorBackground + 1462 " navigationBarColor: " + mNavigationBarColor; 1463 } 1464 } 1465 1466 /** 1467 * Information you can retrieve about tasks that the user has most recently 1468 * started or visited. 1469 */ 1470 public static class RecentTaskInfo implements Parcelable { 1471 /** 1472 * If this task is currently running, this is the identifier for it. 1473 * If it is not running, this will be -1. 1474 */ 1475 public int id; 1476 1477 /** 1478 * The true identifier of this task, valid even if it is not running. 1479 */ 1480 public int persistentId; 1481 1482 /** 1483 * The original Intent used to launch the task. You can use this 1484 * Intent to re-launch the task (if it is no longer running) or bring 1485 * the current task to the front. 1486 */ 1487 public Intent baseIntent; 1488 1489 /** 1490 * If this task was started from an alias, this is the actual 1491 * activity component that was initially started; the component of 1492 * the baseIntent in this case is the name of the actual activity 1493 * implementation that the alias referred to. Otherwise, this is null. 1494 */ 1495 public ComponentName origActivity; 1496 1497 /** 1498 * The actual activity component that started the task. 1499 * @hide 1500 */ 1501 @Nullable 1502 public ComponentName realActivity; 1503 1504 /** 1505 * Description of the task's last state. 1506 */ 1507 public CharSequence description; 1508 1509 /** 1510 * The id of the ActivityStack this Task was on most recently. 1511 * @hide 1512 */ 1513 public int stackId; 1514 1515 /** 1516 * The id of the user the task was running as. 1517 * @hide 1518 */ 1519 public int userId; 1520 1521 /** 1522 * The first time this task was active. 1523 * @hide 1524 */ 1525 public long firstActiveTime; 1526 1527 /** 1528 * The last time this task was active. 1529 * @hide 1530 */ 1531 public long lastActiveTime; 1532 1533 /** 1534 * The recent activity values for the highest activity in the stack to have set the values. 1535 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1536 */ 1537 public TaskDescription taskDescription; 1538 1539 /** 1540 * Task affiliation for grouping with other tasks. 1541 */ 1542 public int affiliatedTaskId; 1543 1544 /** 1545 * Task affiliation color of the source task with the affiliated task id. 1546 * 1547 * @hide 1548 */ 1549 public int affiliatedTaskColor; 1550 1551 /** 1552 * The component launched as the first activity in the task. 1553 * This can be considered the "application" of this task. 1554 */ 1555 public ComponentName baseActivity; 1556 1557 /** 1558 * The activity component at the top of the history stack of the task. 1559 * This is what the user is currently doing. 1560 */ 1561 public ComponentName topActivity; 1562 1563 /** 1564 * Number of activities in this task. 1565 */ 1566 public int numActivities; 1567 1568 /** 1569 * The bounds of the task. 1570 * @hide 1571 */ 1572 public Rect bounds; 1573 1574 /** 1575 * True if the task can go in the docked stack. 1576 * @hide 1577 */ 1578 public boolean supportsSplitScreenMultiWindow; 1579 1580 /** 1581 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1582 * @hide 1583 */ 1584 public int resizeMode; 1585 1586 public RecentTaskInfo() { 1587 } 1588 1589 @Override 1590 public int describeContents() { 1591 return 0; 1592 } 1593 1594 @Override 1595 public void writeToParcel(Parcel dest, int flags) { 1596 dest.writeInt(id); 1597 dest.writeInt(persistentId); 1598 if (baseIntent != null) { 1599 dest.writeInt(1); 1600 baseIntent.writeToParcel(dest, 0); 1601 } else { 1602 dest.writeInt(0); 1603 } 1604 ComponentName.writeToParcel(origActivity, dest); 1605 ComponentName.writeToParcel(realActivity, dest); 1606 TextUtils.writeToParcel(description, dest, 1607 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1608 if (taskDescription != null) { 1609 dest.writeInt(1); 1610 taskDescription.writeToParcel(dest, 0); 1611 } else { 1612 dest.writeInt(0); 1613 } 1614 dest.writeInt(stackId); 1615 dest.writeInt(userId); 1616 dest.writeLong(firstActiveTime); 1617 dest.writeLong(lastActiveTime); 1618 dest.writeInt(affiliatedTaskId); 1619 dest.writeInt(affiliatedTaskColor); 1620 ComponentName.writeToParcel(baseActivity, dest); 1621 ComponentName.writeToParcel(topActivity, dest); 1622 dest.writeInt(numActivities); 1623 if (bounds != null) { 1624 dest.writeInt(1); 1625 bounds.writeToParcel(dest, 0); 1626 } else { 1627 dest.writeInt(0); 1628 } 1629 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1630 dest.writeInt(resizeMode); 1631 } 1632 1633 public void readFromParcel(Parcel source) { 1634 id = source.readInt(); 1635 persistentId = source.readInt(); 1636 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1637 origActivity = ComponentName.readFromParcel(source); 1638 realActivity = ComponentName.readFromParcel(source); 1639 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1640 taskDescription = source.readInt() > 0 ? 1641 TaskDescription.CREATOR.createFromParcel(source) : null; 1642 stackId = source.readInt(); 1643 userId = source.readInt(); 1644 firstActiveTime = source.readLong(); 1645 lastActiveTime = source.readLong(); 1646 affiliatedTaskId = source.readInt(); 1647 affiliatedTaskColor = source.readInt(); 1648 baseActivity = ComponentName.readFromParcel(source); 1649 topActivity = ComponentName.readFromParcel(source); 1650 numActivities = source.readInt(); 1651 bounds = source.readInt() > 0 ? 1652 Rect.CREATOR.createFromParcel(source) : null; 1653 supportsSplitScreenMultiWindow = source.readInt() == 1; 1654 resizeMode = source.readInt(); 1655 } 1656 1657 public static final Creator<RecentTaskInfo> CREATOR 1658 = new Creator<RecentTaskInfo>() { 1659 public RecentTaskInfo createFromParcel(Parcel source) { 1660 return new RecentTaskInfo(source); 1661 } 1662 public RecentTaskInfo[] newArray(int size) { 1663 return new RecentTaskInfo[size]; 1664 } 1665 }; 1666 1667 private RecentTaskInfo(Parcel source) { 1668 readFromParcel(source); 1669 } 1670 } 1671 1672 /** 1673 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1674 * that have set their 1675 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1676 */ 1677 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1678 1679 /** 1680 * Provides a list that does not contain any 1681 * recent tasks that currently are not available to the user. 1682 */ 1683 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1684 1685 /** 1686 * Provides a list that contains recent tasks for all 1687 * profiles of a user. 1688 * @hide 1689 */ 1690 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1691 1692 /** 1693 * Ignores all tasks that are on the home stack. 1694 * @hide 1695 */ 1696 public static final int RECENT_IGNORE_HOME_AND_RECENTS_STACK_TASKS = 0x0008; 1697 1698 /** 1699 * Ignores the top task in the docked stack. 1700 * @hide 1701 */ 1702 public static final int RECENT_INGORE_DOCKED_STACK_TOP_TASK = 0x0010; 1703 1704 /** 1705 * Ignores all tasks that are on the pinned stack. 1706 * @hide 1707 */ 1708 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1709 1710 /** 1711 * <p></p>Return a list of the tasks that the user has recently launched, with 1712 * the most recent being first and older ones after in order. 1713 * 1714 * <p><b>Note: this method is only intended for debugging and presenting 1715 * task management user interfaces</b>. This should never be used for 1716 * core logic in an application, such as deciding between different 1717 * behaviors based on the information found here. Such uses are 1718 * <em>not</em> supported, and will likely break in the future. For 1719 * example, if multiple applications can be actively running at the 1720 * same time, assumptions made about the meaning of the data here for 1721 * purposes of control flow will be incorrect.</p> 1722 * 1723 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1724 * no longer available to third party applications: the introduction of 1725 * document-centric recents means 1726 * it can leak personal information to the caller. For backwards compatibility, 1727 * it will still return a small subset of its data: at least the caller's 1728 * own tasks (though see {@link #getAppTasks()} for the correct supported 1729 * way to retrieve that information), and possibly some other tasks 1730 * such as home that are known to not be sensitive. 1731 * 1732 * @param maxNum The maximum number of entries to return in the list. The 1733 * actual number returned may be smaller, depending on how many tasks the 1734 * user has started and the maximum number the system can remember. 1735 * @param flags Information about what to return. May be any combination 1736 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1737 * 1738 * @return Returns a list of RecentTaskInfo records describing each of 1739 * the recent tasks. 1740 */ 1741 @Deprecated 1742 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1743 throws SecurityException { 1744 try { 1745 return getService().getRecentTasks(maxNum, 1746 flags, UserHandle.myUserId()).getList(); 1747 } catch (RemoteException e) { 1748 throw e.rethrowFromSystemServer(); 1749 } 1750 } 1751 1752 /** 1753 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1754 * specific user. It requires holding 1755 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1756 * @param maxNum The maximum number of entries to return in the list. The 1757 * actual number returned may be smaller, depending on how many tasks the 1758 * user has started and the maximum number the system can remember. 1759 * @param flags Information about what to return. May be any combination 1760 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1761 * 1762 * @return Returns a list of RecentTaskInfo records describing each of 1763 * the recent tasks. Most recently activated tasks go first. 1764 * 1765 * @hide 1766 */ 1767 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1768 throws SecurityException { 1769 try { 1770 return getService().getRecentTasks(maxNum, 1771 flags, userId).getList(); 1772 } catch (RemoteException e) { 1773 throw e.rethrowFromSystemServer(); 1774 } 1775 } 1776 1777 /** 1778 * Information you can retrieve about a particular task that is currently 1779 * "running" in the system. Note that a running task does not mean the 1780 * given task actually has a process it is actively running in; it simply 1781 * means that the user has gone to it and never closed it, but currently 1782 * the system may have killed its process and is only holding on to its 1783 * last state in order to restart it when the user returns. 1784 */ 1785 public static class RunningTaskInfo implements Parcelable { 1786 /** 1787 * A unique identifier for this task. 1788 */ 1789 public int id; 1790 1791 /** 1792 * The stack that currently contains this task. 1793 * @hide 1794 */ 1795 public int stackId; 1796 1797 /** 1798 * The component launched as the first activity in the task. This can 1799 * be considered the "application" of this task. 1800 */ 1801 public ComponentName baseActivity; 1802 1803 /** 1804 * The activity component at the top of the history stack of the task. 1805 * This is what the user is currently doing. 1806 */ 1807 public ComponentName topActivity; 1808 1809 /** 1810 * Thumbnail representation of the task's current state. Currently 1811 * always null. 1812 */ 1813 public Bitmap thumbnail; 1814 1815 /** 1816 * Description of the task's current state. 1817 */ 1818 public CharSequence description; 1819 1820 /** 1821 * Number of activities in this task. 1822 */ 1823 public int numActivities; 1824 1825 /** 1826 * Number of activities that are currently running (not stopped 1827 * and persisted) in this task. 1828 */ 1829 public int numRunning; 1830 1831 /** 1832 * Last time task was run. For sorting. 1833 * @hide 1834 */ 1835 public long lastActiveTime; 1836 1837 /** 1838 * True if the task can go in the docked stack. 1839 * @hide 1840 */ 1841 public boolean supportsSplitScreenMultiWindow; 1842 1843 /** 1844 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1845 * @hide 1846 */ 1847 public int resizeMode; 1848 1849 public RunningTaskInfo() { 1850 } 1851 1852 public int describeContents() { 1853 return 0; 1854 } 1855 1856 public void writeToParcel(Parcel dest, int flags) { 1857 dest.writeInt(id); 1858 dest.writeInt(stackId); 1859 ComponentName.writeToParcel(baseActivity, dest); 1860 ComponentName.writeToParcel(topActivity, dest); 1861 if (thumbnail != null) { 1862 dest.writeInt(1); 1863 thumbnail.writeToParcel(dest, 0); 1864 } else { 1865 dest.writeInt(0); 1866 } 1867 TextUtils.writeToParcel(description, dest, 1868 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1869 dest.writeInt(numActivities); 1870 dest.writeInt(numRunning); 1871 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1872 dest.writeInt(resizeMode); 1873 } 1874 1875 public void readFromParcel(Parcel source) { 1876 id = source.readInt(); 1877 stackId = source.readInt(); 1878 baseActivity = ComponentName.readFromParcel(source); 1879 topActivity = ComponentName.readFromParcel(source); 1880 if (source.readInt() != 0) { 1881 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1882 } else { 1883 thumbnail = null; 1884 } 1885 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1886 numActivities = source.readInt(); 1887 numRunning = source.readInt(); 1888 supportsSplitScreenMultiWindow = source.readInt() != 0; 1889 resizeMode = source.readInt(); 1890 } 1891 1892 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1893 public RunningTaskInfo createFromParcel(Parcel source) { 1894 return new RunningTaskInfo(source); 1895 } 1896 public RunningTaskInfo[] newArray(int size) { 1897 return new RunningTaskInfo[size]; 1898 } 1899 }; 1900 1901 private RunningTaskInfo(Parcel source) { 1902 readFromParcel(source); 1903 } 1904 } 1905 1906 /** 1907 * Get the list of tasks associated with the calling application. 1908 * 1909 * @return The list of tasks associated with the application making this call. 1910 * @throws SecurityException 1911 */ 1912 public List<ActivityManager.AppTask> getAppTasks() { 1913 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1914 List<IBinder> appTasks; 1915 try { 1916 appTasks = getService().getAppTasks(mContext.getPackageName()); 1917 } catch (RemoteException e) { 1918 throw e.rethrowFromSystemServer(); 1919 } 1920 int numAppTasks = appTasks.size(); 1921 for (int i = 0; i < numAppTasks; i++) { 1922 tasks.add(new AppTask(IAppTask.Stub.asInterface(appTasks.get(i)))); 1923 } 1924 return tasks; 1925 } 1926 1927 /** 1928 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1929 * with {@link #addAppTask}. 1930 */ 1931 public Size getAppTaskThumbnailSize() { 1932 synchronized (this) { 1933 ensureAppTaskThumbnailSizeLocked(); 1934 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1935 } 1936 } 1937 1938 private void ensureAppTaskThumbnailSizeLocked() { 1939 if (mAppTaskThumbnailSize == null) { 1940 try { 1941 mAppTaskThumbnailSize = getService().getAppTaskThumbnailSize(); 1942 } catch (RemoteException e) { 1943 throw e.rethrowFromSystemServer(); 1944 } 1945 } 1946 } 1947 1948 /** 1949 * Add a new {@link AppTask} for the calling application. This will create a new 1950 * recents entry that is added to the <b>end</b> of all existing recents. 1951 * 1952 * @param activity The activity that is adding the entry. This is used to help determine 1953 * the context that the new recents entry will be in. 1954 * @param intent The Intent that describes the recents entry. This is the same Intent that 1955 * you would have used to launch the activity for it. In generally you will want to set 1956 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1957 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1958 * entry will exist without an activity, so it doesn't make sense to not retain it when 1959 * its activity disappears. The given Intent here also must have an explicit ComponentName 1960 * set on it. 1961 * @param description Optional additional description information. 1962 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1963 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1964 * recreated in your process, probably in a way you don't like, before the recents entry 1965 * is added. 1966 * 1967 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 1968 * most likely cause of failure is that there is no more room for more tasks for your app. 1969 */ 1970 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 1971 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 1972 Point size; 1973 synchronized (this) { 1974 ensureAppTaskThumbnailSizeLocked(); 1975 size = mAppTaskThumbnailSize; 1976 } 1977 final int tw = thumbnail.getWidth(); 1978 final int th = thumbnail.getHeight(); 1979 if (tw != size.x || th != size.y) { 1980 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 1981 1982 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 1983 float scale; 1984 float dx = 0, dy = 0; 1985 if (tw * size.x > size.y * th) { 1986 scale = (float) size.x / (float) th; 1987 dx = (size.y - tw * scale) * 0.5f; 1988 } else { 1989 scale = (float) size.y / (float) tw; 1990 dy = (size.x - th * scale) * 0.5f; 1991 } 1992 Matrix matrix = new Matrix(); 1993 matrix.setScale(scale, scale); 1994 matrix.postTranslate((int) (dx + 0.5f), 0); 1995 1996 Canvas canvas = new Canvas(bm); 1997 canvas.drawBitmap(thumbnail, matrix, null); 1998 canvas.setBitmap(null); 1999 2000 thumbnail = bm; 2001 } 2002 if (description == null) { 2003 description = new TaskDescription(); 2004 } 2005 try { 2006 return getService().addAppTask(activity.getActivityToken(), 2007 intent, description, thumbnail); 2008 } catch (RemoteException e) { 2009 throw e.rethrowFromSystemServer(); 2010 } 2011 } 2012 2013 /** 2014 * Return a list of the tasks that are currently running, with 2015 * the most recent being first and older ones after in order. Note that 2016 * "running" does not mean any of the task's code is currently loaded or 2017 * activity -- the task may have been frozen by the system, so that it 2018 * can be restarted in its previous state when next brought to the 2019 * foreground. 2020 * 2021 * <p><b>Note: this method is only intended for debugging and presenting 2022 * task management user interfaces</b>. This should never be used for 2023 * core logic in an application, such as deciding between different 2024 * behaviors based on the information found here. Such uses are 2025 * <em>not</em> supported, and will likely break in the future. For 2026 * example, if multiple applications can be actively running at the 2027 * same time, assumptions made about the meaning of the data here for 2028 * purposes of control flow will be incorrect.</p> 2029 * 2030 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 2031 * is no longer available to third party 2032 * applications: the introduction of document-centric recents means 2033 * it can leak person information to the caller. For backwards compatibility, 2034 * it will still return a small subset of its data: at least the caller's 2035 * own tasks, and possibly some other tasks 2036 * such as home that are known to not be sensitive. 2037 * 2038 * @param maxNum The maximum number of entries to return in the list. The 2039 * actual number returned may be smaller, depending on how many tasks the 2040 * user has started. 2041 * 2042 * @return Returns a list of RunningTaskInfo records describing each of 2043 * the running tasks. 2044 */ 2045 @Deprecated 2046 public List<RunningTaskInfo> getRunningTasks(int maxNum) 2047 throws SecurityException { 2048 try { 2049 return getService().getTasks(maxNum, 0); 2050 } catch (RemoteException e) { 2051 throw e.rethrowFromSystemServer(); 2052 } 2053 } 2054 2055 /** 2056 * Completely remove the given task. 2057 * 2058 * @param taskId Identifier of the task to be removed. 2059 * @return Returns true if the given task was found and removed. 2060 * 2061 * @hide 2062 */ 2063 public boolean removeTask(int taskId) throws SecurityException { 2064 try { 2065 return getService().removeTask(taskId); 2066 } catch (RemoteException e) { 2067 throw e.rethrowFromSystemServer(); 2068 } 2069 } 2070 2071 /** 2072 * Metadata related to the {@link TaskThumbnail}. 2073 * 2074 * @hide 2075 */ 2076 public static class TaskThumbnailInfo implements Parcelable { 2077 /** @hide */ 2078 public static final String ATTR_TASK_THUMBNAILINFO_PREFIX = "task_thumbnailinfo_"; 2079 private static final String ATTR_TASK_WIDTH = 2080 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_width"; 2081 private static final String ATTR_TASK_HEIGHT = 2082 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_height"; 2083 private static final String ATTR_SCREEN_ORIENTATION = 2084 ATTR_TASK_THUMBNAILINFO_PREFIX + "screen_orientation"; 2085 2086 public int taskWidth; 2087 public int taskHeight; 2088 public int screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2089 2090 public TaskThumbnailInfo() { 2091 // Do nothing 2092 } 2093 2094 private TaskThumbnailInfo(Parcel source) { 2095 readFromParcel(source); 2096 } 2097 2098 /** 2099 * Resets this info state to the initial state. 2100 * @hide 2101 */ 2102 public void reset() { 2103 taskWidth = 0; 2104 taskHeight = 0; 2105 screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2106 } 2107 2108 /** 2109 * Copies from another ThumbnailInfo. 2110 */ 2111 public void copyFrom(TaskThumbnailInfo o) { 2112 taskWidth = o.taskWidth; 2113 taskHeight = o.taskHeight; 2114 screenOrientation = o.screenOrientation; 2115 } 2116 2117 /** @hide */ 2118 public void saveToXml(XmlSerializer out) throws IOException { 2119 out.attribute(null, ATTR_TASK_WIDTH, Integer.toString(taskWidth)); 2120 out.attribute(null, ATTR_TASK_HEIGHT, Integer.toString(taskHeight)); 2121 out.attribute(null, ATTR_SCREEN_ORIENTATION, Integer.toString(screenOrientation)); 2122 } 2123 2124 /** @hide */ 2125 public void restoreFromXml(String attrName, String attrValue) { 2126 if (ATTR_TASK_WIDTH.equals(attrName)) { 2127 taskWidth = Integer.parseInt(attrValue); 2128 } else if (ATTR_TASK_HEIGHT.equals(attrName)) { 2129 taskHeight = Integer.parseInt(attrValue); 2130 } else if (ATTR_SCREEN_ORIENTATION.equals(attrName)) { 2131 screenOrientation = Integer.parseInt(attrValue); 2132 } 2133 } 2134 2135 public int describeContents() { 2136 return 0; 2137 } 2138 2139 public void writeToParcel(Parcel dest, int flags) { 2140 dest.writeInt(taskWidth); 2141 dest.writeInt(taskHeight); 2142 dest.writeInt(screenOrientation); 2143 } 2144 2145 public void readFromParcel(Parcel source) { 2146 taskWidth = source.readInt(); 2147 taskHeight = source.readInt(); 2148 screenOrientation = source.readInt(); 2149 } 2150 2151 public static final Creator<TaskThumbnailInfo> CREATOR = new Creator<TaskThumbnailInfo>() { 2152 public TaskThumbnailInfo createFromParcel(Parcel source) { 2153 return new TaskThumbnailInfo(source); 2154 } 2155 public TaskThumbnailInfo[] newArray(int size) { 2156 return new TaskThumbnailInfo[size]; 2157 } 2158 }; 2159 } 2160 2161 /** @hide */ 2162 public static class TaskThumbnail implements Parcelable { 2163 public Bitmap mainThumbnail; 2164 public ParcelFileDescriptor thumbnailFileDescriptor; 2165 public TaskThumbnailInfo thumbnailInfo; 2166 2167 public TaskThumbnail() { 2168 } 2169 2170 private TaskThumbnail(Parcel source) { 2171 readFromParcel(source); 2172 } 2173 2174 public int describeContents() { 2175 if (thumbnailFileDescriptor != null) { 2176 return thumbnailFileDescriptor.describeContents(); 2177 } 2178 return 0; 2179 } 2180 2181 public void writeToParcel(Parcel dest, int flags) { 2182 if (mainThumbnail != null) { 2183 dest.writeInt(1); 2184 mainThumbnail.writeToParcel(dest, flags); 2185 } else { 2186 dest.writeInt(0); 2187 } 2188 if (thumbnailFileDescriptor != null) { 2189 dest.writeInt(1); 2190 thumbnailFileDescriptor.writeToParcel(dest, flags); 2191 } else { 2192 dest.writeInt(0); 2193 } 2194 if (thumbnailInfo != null) { 2195 dest.writeInt(1); 2196 thumbnailInfo.writeToParcel(dest, flags); 2197 } else { 2198 dest.writeInt(0); 2199 } 2200 } 2201 2202 public void readFromParcel(Parcel source) { 2203 if (source.readInt() != 0) { 2204 mainThumbnail = Bitmap.CREATOR.createFromParcel(source); 2205 } else { 2206 mainThumbnail = null; 2207 } 2208 if (source.readInt() != 0) { 2209 thumbnailFileDescriptor = ParcelFileDescriptor.CREATOR.createFromParcel(source); 2210 } else { 2211 thumbnailFileDescriptor = null; 2212 } 2213 if (source.readInt() != 0) { 2214 thumbnailInfo = TaskThumbnailInfo.CREATOR.createFromParcel(source); 2215 } else { 2216 thumbnailInfo = null; 2217 } 2218 } 2219 2220 public static final Creator<TaskThumbnail> CREATOR = new Creator<TaskThumbnail>() { 2221 public TaskThumbnail createFromParcel(Parcel source) { 2222 return new TaskThumbnail(source); 2223 } 2224 public TaskThumbnail[] newArray(int size) { 2225 return new TaskThumbnail[size]; 2226 } 2227 }; 2228 } 2229 2230 /** 2231 * Represents a task snapshot. 2232 * @hide 2233 */ 2234 public static class TaskSnapshot implements Parcelable { 2235 2236 private final GraphicBuffer mSnapshot; 2237 private final int mOrientation; 2238 private final Rect mContentInsets; 2239 private final boolean mReducedResolution; 2240 private final float mScale; 2241 2242 public TaskSnapshot(GraphicBuffer snapshot, int orientation, Rect contentInsets, 2243 boolean reducedResolution, float scale) { 2244 mSnapshot = snapshot; 2245 mOrientation = orientation; 2246 mContentInsets = new Rect(contentInsets); 2247 mReducedResolution = reducedResolution; 2248 mScale = scale; 2249 } 2250 2251 private TaskSnapshot(Parcel source) { 2252 mSnapshot = source.readParcelable(null /* classLoader */); 2253 mOrientation = source.readInt(); 2254 mContentInsets = source.readParcelable(null /* classLoader */); 2255 mReducedResolution = source.readBoolean(); 2256 mScale = source.readFloat(); 2257 } 2258 2259 /** 2260 * @return The graphic buffer representing the screenshot. 2261 */ 2262 public GraphicBuffer getSnapshot() { 2263 return mSnapshot; 2264 } 2265 2266 /** 2267 * @return The screen orientation the screenshot was taken in. 2268 */ 2269 public int getOrientation() { 2270 return mOrientation; 2271 } 2272 2273 /** 2274 * @return The system/content insets on the snapshot. These can be clipped off in order to 2275 * remove any areas behind system bars in the snapshot. 2276 */ 2277 public Rect getContentInsets() { 2278 return mContentInsets; 2279 } 2280 2281 /** 2282 * @return Whether this snapshot is a down-sampled version of the full resolution. 2283 */ 2284 public boolean isReducedResolution() { 2285 return mReducedResolution; 2286 } 2287 2288 /** 2289 * @return The scale this snapshot was taken in. 2290 */ 2291 public float getScale() { 2292 return mScale; 2293 } 2294 2295 @Override 2296 public int describeContents() { 2297 return 0; 2298 } 2299 2300 @Override 2301 public void writeToParcel(Parcel dest, int flags) { 2302 dest.writeParcelable(mSnapshot, 0); 2303 dest.writeInt(mOrientation); 2304 dest.writeParcelable(mContentInsets, 0); 2305 dest.writeBoolean(mReducedResolution); 2306 dest.writeFloat(mScale); 2307 } 2308 2309 @Override 2310 public String toString() { 2311 return "TaskSnapshot{mSnapshot=" + mSnapshot + " mOrientation=" + mOrientation 2312 + " mContentInsets=" + mContentInsets.toShortString() 2313 + " mReducedResolution=" + mReducedResolution + " mScale=" + mScale; 2314 } 2315 2316 public static final Creator<TaskSnapshot> CREATOR = new Creator<TaskSnapshot>() { 2317 public TaskSnapshot createFromParcel(Parcel source) { 2318 return new TaskSnapshot(source); 2319 } 2320 public TaskSnapshot[] newArray(int size) { 2321 return new TaskSnapshot[size]; 2322 } 2323 }; 2324 } 2325 2326 /** @hide */ 2327 public TaskThumbnail getTaskThumbnail(int id) throws SecurityException { 2328 try { 2329 return getService().getTaskThumbnail(id); 2330 } catch (RemoteException e) { 2331 throw e.rethrowFromSystemServer(); 2332 } 2333 } 2334 2335 /** @hide */ 2336 @IntDef(flag = true, prefix = { "MOVE_TASK_" }, value = { 2337 MOVE_TASK_WITH_HOME, 2338 MOVE_TASK_NO_USER_ACTION, 2339 }) 2340 @Retention(RetentionPolicy.SOURCE) 2341 public @interface MoveTaskFlags {} 2342 2343 /** 2344 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2345 * activity along with the task, so it is positioned immediately behind 2346 * the task. 2347 */ 2348 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2349 2350 /** 2351 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2352 * user-instigated action, so the current activity will not receive a 2353 * hint that the user is leaving. 2354 */ 2355 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2356 2357 /** 2358 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2359 * with a null options argument. 2360 * 2361 * @param taskId The identifier of the task to be moved, as found in 2362 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2363 * @param flags Additional operational flags. 2364 */ 2365 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2366 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags) { 2367 moveTaskToFront(taskId, flags, null); 2368 } 2369 2370 /** 2371 * Ask that the task associated with a given task ID be moved to the 2372 * front of the stack, so it is now visible to the user. 2373 * 2374 * @param taskId The identifier of the task to be moved, as found in 2375 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2376 * @param flags Additional operational flags. 2377 * @param options Additional options for the operation, either null or 2378 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2379 * Context.startActivity(Intent, Bundle)}. 2380 */ 2381 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2382 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags, Bundle options) { 2383 try { 2384 getService().moveTaskToFront(taskId, flags, options); 2385 } catch (RemoteException e) { 2386 throw e.rethrowFromSystemServer(); 2387 } 2388 } 2389 2390 /** 2391 * Information you can retrieve about a particular Service that is 2392 * currently running in the system. 2393 */ 2394 public static class RunningServiceInfo implements Parcelable { 2395 /** 2396 * The service component. 2397 */ 2398 public ComponentName service; 2399 2400 /** 2401 * If non-zero, this is the process the service is running in. 2402 */ 2403 public int pid; 2404 2405 /** 2406 * The UID that owns this service. 2407 */ 2408 public int uid; 2409 2410 /** 2411 * The name of the process this service runs in. 2412 */ 2413 public String process; 2414 2415 /** 2416 * Set to true if the service has asked to run as a foreground process. 2417 */ 2418 public boolean foreground; 2419 2420 /** 2421 * The time when the service was first made active, either by someone 2422 * starting or binding to it. This 2423 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2424 */ 2425 public long activeSince; 2426 2427 /** 2428 * Set to true if this service has been explicitly started. 2429 */ 2430 public boolean started; 2431 2432 /** 2433 * Number of clients connected to the service. 2434 */ 2435 public int clientCount; 2436 2437 /** 2438 * Number of times the service's process has crashed while the service 2439 * is running. 2440 */ 2441 public int crashCount; 2442 2443 /** 2444 * The time when there was last activity in the service (either 2445 * explicit requests to start it or clients binding to it). This 2446 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2447 */ 2448 public long lastActivityTime; 2449 2450 /** 2451 * If non-zero, this service is not currently running, but scheduled to 2452 * restart at the given time. 2453 */ 2454 public long restarting; 2455 2456 /** 2457 * Bit for {@link #flags}: set if this service has been 2458 * explicitly started. 2459 */ 2460 public static final int FLAG_STARTED = 1<<0; 2461 2462 /** 2463 * Bit for {@link #flags}: set if the service has asked to 2464 * run as a foreground process. 2465 */ 2466 public static final int FLAG_FOREGROUND = 1<<1; 2467 2468 /** 2469 * Bit for {@link #flags}: set if the service is running in a 2470 * core system process. 2471 */ 2472 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2473 2474 /** 2475 * Bit for {@link #flags}: set if the service is running in a 2476 * persistent process. 2477 */ 2478 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2479 2480 /** 2481 * Running flags. 2482 */ 2483 public int flags; 2484 2485 /** 2486 * For special services that are bound to by system code, this is 2487 * the package that holds the binding. 2488 */ 2489 public String clientPackage; 2490 2491 /** 2492 * For special services that are bound to by system code, this is 2493 * a string resource providing a user-visible label for who the 2494 * client is. 2495 */ 2496 public int clientLabel; 2497 2498 public RunningServiceInfo() { 2499 } 2500 2501 public int describeContents() { 2502 return 0; 2503 } 2504 2505 public void writeToParcel(Parcel dest, int flags) { 2506 ComponentName.writeToParcel(service, dest); 2507 dest.writeInt(pid); 2508 dest.writeInt(uid); 2509 dest.writeString(process); 2510 dest.writeInt(foreground ? 1 : 0); 2511 dest.writeLong(activeSince); 2512 dest.writeInt(started ? 1 : 0); 2513 dest.writeInt(clientCount); 2514 dest.writeInt(crashCount); 2515 dest.writeLong(lastActivityTime); 2516 dest.writeLong(restarting); 2517 dest.writeInt(this.flags); 2518 dest.writeString(clientPackage); 2519 dest.writeInt(clientLabel); 2520 } 2521 2522 public void readFromParcel(Parcel source) { 2523 service = ComponentName.readFromParcel(source); 2524 pid = source.readInt(); 2525 uid = source.readInt(); 2526 process = source.readString(); 2527 foreground = source.readInt() != 0; 2528 activeSince = source.readLong(); 2529 started = source.readInt() != 0; 2530 clientCount = source.readInt(); 2531 crashCount = source.readInt(); 2532 lastActivityTime = source.readLong(); 2533 restarting = source.readLong(); 2534 flags = source.readInt(); 2535 clientPackage = source.readString(); 2536 clientLabel = source.readInt(); 2537 } 2538 2539 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2540 public RunningServiceInfo createFromParcel(Parcel source) { 2541 return new RunningServiceInfo(source); 2542 } 2543 public RunningServiceInfo[] newArray(int size) { 2544 return new RunningServiceInfo[size]; 2545 } 2546 }; 2547 2548 private RunningServiceInfo(Parcel source) { 2549 readFromParcel(source); 2550 } 2551 } 2552 2553 /** 2554 * Return a list of the services that are currently running. 2555 * 2556 * <p><b>Note: this method is only intended for debugging or implementing 2557 * service management type user interfaces.</b></p> 2558 * 2559 * @deprecated As of {@link android.os.Build.VERSION_CODES#O}, this method 2560 * is no longer available to third party applications. For backwards compatibility, 2561 * it will still return the caller's own services. 2562 * 2563 * @param maxNum The maximum number of entries to return in the list. The 2564 * actual number returned may be smaller, depending on how many services 2565 * are running. 2566 * 2567 * @return Returns a list of RunningServiceInfo records describing each of 2568 * the running tasks. 2569 */ 2570 @Deprecated 2571 public List<RunningServiceInfo> getRunningServices(int maxNum) 2572 throws SecurityException { 2573 try { 2574 return getService() 2575 .getServices(maxNum, 0); 2576 } catch (RemoteException e) { 2577 throw e.rethrowFromSystemServer(); 2578 } 2579 } 2580 2581 /** 2582 * Returns a PendingIntent you can start to show a control panel for the 2583 * given running service. If the service does not have a control panel, 2584 * null is returned. 2585 */ 2586 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2587 throws SecurityException { 2588 try { 2589 return getService() 2590 .getRunningServiceControlPanel(service); 2591 } catch (RemoteException e) { 2592 throw e.rethrowFromSystemServer(); 2593 } 2594 } 2595 2596 /** 2597 * Information you can retrieve about the available memory through 2598 * {@link ActivityManager#getMemoryInfo}. 2599 */ 2600 public static class MemoryInfo implements Parcelable { 2601 /** 2602 * The available memory on the system. This number should not 2603 * be considered absolute: due to the nature of the kernel, a significant 2604 * portion of this memory is actually in use and needed for the overall 2605 * system to run well. 2606 */ 2607 public long availMem; 2608 2609 /** 2610 * The total memory accessible by the kernel. This is basically the 2611 * RAM size of the device, not including below-kernel fixed allocations 2612 * like DMA buffers, RAM for the baseband CPU, etc. 2613 */ 2614 public long totalMem; 2615 2616 /** 2617 * The threshold of {@link #availMem} at which we consider memory to be 2618 * low and start killing background services and other non-extraneous 2619 * processes. 2620 */ 2621 public long threshold; 2622 2623 /** 2624 * Set to true if the system considers itself to currently be in a low 2625 * memory situation. 2626 */ 2627 public boolean lowMemory; 2628 2629 /** @hide */ 2630 public long hiddenAppThreshold; 2631 /** @hide */ 2632 public long secondaryServerThreshold; 2633 /** @hide */ 2634 public long visibleAppThreshold; 2635 /** @hide */ 2636 public long foregroundAppThreshold; 2637 2638 public MemoryInfo() { 2639 } 2640 2641 public int describeContents() { 2642 return 0; 2643 } 2644 2645 public void writeToParcel(Parcel dest, int flags) { 2646 dest.writeLong(availMem); 2647 dest.writeLong(totalMem); 2648 dest.writeLong(threshold); 2649 dest.writeInt(lowMemory ? 1 : 0); 2650 dest.writeLong(hiddenAppThreshold); 2651 dest.writeLong(secondaryServerThreshold); 2652 dest.writeLong(visibleAppThreshold); 2653 dest.writeLong(foregroundAppThreshold); 2654 } 2655 2656 public void readFromParcel(Parcel source) { 2657 availMem = source.readLong(); 2658 totalMem = source.readLong(); 2659 threshold = source.readLong(); 2660 lowMemory = source.readInt() != 0; 2661 hiddenAppThreshold = source.readLong(); 2662 secondaryServerThreshold = source.readLong(); 2663 visibleAppThreshold = source.readLong(); 2664 foregroundAppThreshold = source.readLong(); 2665 } 2666 2667 public static final Creator<MemoryInfo> CREATOR 2668 = new Creator<MemoryInfo>() { 2669 public MemoryInfo createFromParcel(Parcel source) { 2670 return new MemoryInfo(source); 2671 } 2672 public MemoryInfo[] newArray(int size) { 2673 return new MemoryInfo[size]; 2674 } 2675 }; 2676 2677 private MemoryInfo(Parcel source) { 2678 readFromParcel(source); 2679 } 2680 } 2681 2682 /** 2683 * Return general information about the memory state of the system. This 2684 * can be used to help decide how to manage your own memory, though note 2685 * that polling is not recommended and 2686 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2687 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2688 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2689 * level of your process as needed, which gives a better hint for how to 2690 * manage its memory. 2691 */ 2692 public void getMemoryInfo(MemoryInfo outInfo) { 2693 try { 2694 getService().getMemoryInfo(outInfo); 2695 } catch (RemoteException e) { 2696 throw e.rethrowFromSystemServer(); 2697 } 2698 } 2699 2700 /** 2701 * Information you can retrieve about an ActivityStack in the system. 2702 * @hide 2703 */ 2704 public static class StackInfo implements Parcelable { 2705 public int stackId; 2706 public Rect bounds = new Rect(); 2707 public int[] taskIds; 2708 public String[] taskNames; 2709 public Rect[] taskBounds; 2710 public int[] taskUserIds; 2711 public ComponentName topActivity; 2712 public int displayId; 2713 public int userId; 2714 public boolean visible; 2715 // Index of the stack in the display's stack list, can be used for comparison of stack order 2716 public int position; 2717 2718 @Override 2719 public int describeContents() { 2720 return 0; 2721 } 2722 2723 @Override 2724 public void writeToParcel(Parcel dest, int flags) { 2725 dest.writeInt(stackId); 2726 dest.writeInt(bounds.left); 2727 dest.writeInt(bounds.top); 2728 dest.writeInt(bounds.right); 2729 dest.writeInt(bounds.bottom); 2730 dest.writeIntArray(taskIds); 2731 dest.writeStringArray(taskNames); 2732 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2733 dest.writeInt(boundsCount); 2734 for (int i = 0; i < boundsCount; i++) { 2735 dest.writeInt(taskBounds[i].left); 2736 dest.writeInt(taskBounds[i].top); 2737 dest.writeInt(taskBounds[i].right); 2738 dest.writeInt(taskBounds[i].bottom); 2739 } 2740 dest.writeIntArray(taskUserIds); 2741 dest.writeInt(displayId); 2742 dest.writeInt(userId); 2743 dest.writeInt(visible ? 1 : 0); 2744 dest.writeInt(position); 2745 if (topActivity != null) { 2746 dest.writeInt(1); 2747 topActivity.writeToParcel(dest, 0); 2748 } else { 2749 dest.writeInt(0); 2750 } 2751 } 2752 2753 public void readFromParcel(Parcel source) { 2754 stackId = source.readInt(); 2755 bounds = new Rect( 2756 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2757 taskIds = source.createIntArray(); 2758 taskNames = source.createStringArray(); 2759 final int boundsCount = source.readInt(); 2760 if (boundsCount > 0) { 2761 taskBounds = new Rect[boundsCount]; 2762 for (int i = 0; i < boundsCount; i++) { 2763 taskBounds[i] = new Rect(); 2764 taskBounds[i].set( 2765 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2766 } 2767 } else { 2768 taskBounds = null; 2769 } 2770 taskUserIds = source.createIntArray(); 2771 displayId = source.readInt(); 2772 userId = source.readInt(); 2773 visible = source.readInt() > 0; 2774 position = source.readInt(); 2775 if (source.readInt() > 0) { 2776 topActivity = ComponentName.readFromParcel(source); 2777 } 2778 } 2779 2780 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2781 @Override 2782 public StackInfo createFromParcel(Parcel source) { 2783 return new StackInfo(source); 2784 } 2785 @Override 2786 public StackInfo[] newArray(int size) { 2787 return new StackInfo[size]; 2788 } 2789 }; 2790 2791 public StackInfo() { 2792 } 2793 2794 private StackInfo(Parcel source) { 2795 readFromParcel(source); 2796 } 2797 2798 public String toString(String prefix) { 2799 StringBuilder sb = new StringBuilder(256); 2800 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2801 sb.append(" bounds="); sb.append(bounds.toShortString()); 2802 sb.append(" displayId="); sb.append(displayId); 2803 sb.append(" userId="); sb.append(userId); 2804 sb.append("\n"); 2805 prefix = prefix + " "; 2806 for (int i = 0; i < taskIds.length; ++i) { 2807 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2808 sb.append(": "); sb.append(taskNames[i]); 2809 if (taskBounds != null) { 2810 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2811 } 2812 sb.append(" userId=").append(taskUserIds[i]); 2813 sb.append(" visible=").append(visible); 2814 if (topActivity != null) { 2815 sb.append(" topActivity=").append(topActivity); 2816 } 2817 sb.append("\n"); 2818 } 2819 return sb.toString(); 2820 } 2821 2822 @Override 2823 public String toString() { 2824 return toString(""); 2825 } 2826 } 2827 2828 /** 2829 * @hide 2830 */ 2831 @RequiresPermission(anyOf={Manifest.permission.CLEAR_APP_USER_DATA, 2832 Manifest.permission.ACCESS_INSTANT_APPS}) 2833 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2834 try { 2835 return getService().clearApplicationUserData(packageName, 2836 observer, UserHandle.myUserId()); 2837 } catch (RemoteException e) { 2838 throw e.rethrowFromSystemServer(); 2839 } 2840 } 2841 2842 /** 2843 * Permits an application to erase its own data from disk. This is equivalent to 2844 * the user choosing to clear the app's data from within the device settings UI. It 2845 * erases all dynamic data associated with the app -- its private data and data in its 2846 * private area on external storage -- but does not remove the installed application 2847 * itself, nor any OBB files. 2848 * 2849 * @return {@code true} if the application successfully requested that the application's 2850 * data be erased; {@code false} otherwise. 2851 */ 2852 public boolean clearApplicationUserData() { 2853 return clearApplicationUserData(mContext.getPackageName(), null); 2854 } 2855 2856 2857 /** 2858 * Permits an application to get the persistent URI permissions granted to another. 2859 * 2860 * <p>Typically called by Settings. 2861 * 2862 * @param packageName application to look for the granted permissions 2863 * @return list of granted URI permissions 2864 * 2865 * @hide 2866 */ 2867 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2868 try { 2869 return getService().getGrantedUriPermissions(packageName, 2870 UserHandle.myUserId()); 2871 } catch (RemoteException e) { 2872 throw e.rethrowFromSystemServer(); 2873 } 2874 } 2875 2876 /** 2877 * Permits an application to clear the persistent URI permissions granted to another. 2878 * 2879 * <p>Typically called by Settings. 2880 * 2881 * @param packageName application to clear its granted permissions 2882 * 2883 * @hide 2884 */ 2885 public void clearGrantedUriPermissions(String packageName) { 2886 try { 2887 getService().clearGrantedUriPermissions(packageName, 2888 UserHandle.myUserId()); 2889 } catch (RemoteException e) { 2890 throw e.rethrowFromSystemServer(); 2891 } 2892 } 2893 2894 /** 2895 * Information you can retrieve about any processes that are in an error condition. 2896 */ 2897 public static class ProcessErrorStateInfo implements Parcelable { 2898 /** 2899 * Condition codes 2900 */ 2901 public static final int NO_ERROR = 0; 2902 public static final int CRASHED = 1; 2903 public static final int NOT_RESPONDING = 2; 2904 2905 /** 2906 * The condition that the process is in. 2907 */ 2908 public int condition; 2909 2910 /** 2911 * The process name in which the crash or error occurred. 2912 */ 2913 public String processName; 2914 2915 /** 2916 * The pid of this process; 0 if none 2917 */ 2918 public int pid; 2919 2920 /** 2921 * The kernel user-ID that has been assigned to this process; 2922 * currently this is not a unique ID (multiple applications can have 2923 * the same uid). 2924 */ 2925 public int uid; 2926 2927 /** 2928 * The activity name associated with the error, if known. May be null. 2929 */ 2930 public String tag; 2931 2932 /** 2933 * A short message describing the error condition. 2934 */ 2935 public String shortMsg; 2936 2937 /** 2938 * A long message describing the error condition. 2939 */ 2940 public String longMsg; 2941 2942 /** 2943 * The stack trace where the error originated. May be null. 2944 */ 2945 public String stackTrace; 2946 2947 /** 2948 * to be deprecated: This value will always be null. 2949 */ 2950 public byte[] crashData = null; 2951 2952 public ProcessErrorStateInfo() { 2953 } 2954 2955 @Override 2956 public int describeContents() { 2957 return 0; 2958 } 2959 2960 @Override 2961 public void writeToParcel(Parcel dest, int flags) { 2962 dest.writeInt(condition); 2963 dest.writeString(processName); 2964 dest.writeInt(pid); 2965 dest.writeInt(uid); 2966 dest.writeString(tag); 2967 dest.writeString(shortMsg); 2968 dest.writeString(longMsg); 2969 dest.writeString(stackTrace); 2970 } 2971 2972 public void readFromParcel(Parcel source) { 2973 condition = source.readInt(); 2974 processName = source.readString(); 2975 pid = source.readInt(); 2976 uid = source.readInt(); 2977 tag = source.readString(); 2978 shortMsg = source.readString(); 2979 longMsg = source.readString(); 2980 stackTrace = source.readString(); 2981 } 2982 2983 public static final Creator<ProcessErrorStateInfo> CREATOR = 2984 new Creator<ProcessErrorStateInfo>() { 2985 public ProcessErrorStateInfo createFromParcel(Parcel source) { 2986 return new ProcessErrorStateInfo(source); 2987 } 2988 public ProcessErrorStateInfo[] newArray(int size) { 2989 return new ProcessErrorStateInfo[size]; 2990 } 2991 }; 2992 2993 private ProcessErrorStateInfo(Parcel source) { 2994 readFromParcel(source); 2995 } 2996 } 2997 2998 /** 2999 * Returns a list of any processes that are currently in an error condition. The result 3000 * will be null if all processes are running properly at this time. 3001 * 3002 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 3003 * current error conditions (it will not return an empty list). This list ordering is not 3004 * specified. 3005 */ 3006 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 3007 try { 3008 return getService().getProcessesInErrorState(); 3009 } catch (RemoteException e) { 3010 throw e.rethrowFromSystemServer(); 3011 } 3012 } 3013 3014 /** 3015 * Information you can retrieve about a running process. 3016 */ 3017 public static class RunningAppProcessInfo implements Parcelable { 3018 /** 3019 * The name of the process that this object is associated with 3020 */ 3021 public String processName; 3022 3023 /** 3024 * The pid of this process; 0 if none 3025 */ 3026 public int pid; 3027 3028 /** 3029 * The user id of this process. 3030 */ 3031 public int uid; 3032 3033 /** 3034 * All packages that have been loaded into the process. 3035 */ 3036 public String pkgList[]; 3037 3038 /** 3039 * Constant for {@link #flags}: this is an app that is unable to 3040 * correctly save its state when going to the background, 3041 * so it can not be killed while in the background. 3042 * @hide 3043 */ 3044 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 3045 3046 /** 3047 * Constant for {@link #flags}: this process is associated with a 3048 * persistent system app. 3049 * @hide 3050 */ 3051 public static final int FLAG_PERSISTENT = 1<<1; 3052 3053 /** 3054 * Constant for {@link #flags}: this process is associated with a 3055 * persistent system app. 3056 * @hide 3057 */ 3058 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 3059 3060 /** 3061 * Flags of information. May be any of 3062 * {@link #FLAG_CANT_SAVE_STATE}. 3063 * @hide 3064 */ 3065 public int flags; 3066 3067 /** 3068 * Last memory trim level reported to the process: corresponds to 3069 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 3070 * ComponentCallbacks2.onTrimMemory(int)}. 3071 */ 3072 public int lastTrimLevel; 3073 3074 /** @hide */ 3075 @IntDef(prefix = { "IMPORTANCE_" }, value = { 3076 IMPORTANCE_FOREGROUND, 3077 IMPORTANCE_FOREGROUND_SERVICE, 3078 IMPORTANCE_TOP_SLEEPING, 3079 IMPORTANCE_VISIBLE, 3080 IMPORTANCE_PERCEPTIBLE, 3081 IMPORTANCE_CANT_SAVE_STATE, 3082 IMPORTANCE_SERVICE, 3083 IMPORTANCE_CACHED, 3084 IMPORTANCE_GONE, 3085 }) 3086 @Retention(RetentionPolicy.SOURCE) 3087 public @interface Importance {} 3088 3089 /** 3090 * Constant for {@link #importance}: This process is running the 3091 * foreground UI; that is, it is the thing currently at the top of the screen 3092 * that the user is interacting with. 3093 */ 3094 public static final int IMPORTANCE_FOREGROUND = 100; 3095 3096 /** 3097 * Constant for {@link #importance}: This process is running a foreground 3098 * service, for example to perform music playback even while the user is 3099 * not immediately in the app. This generally indicates that the process 3100 * is doing something the user actively cares about. 3101 */ 3102 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 3103 3104 /** 3105 * Constant for {@link #importance}: This process is running the foreground 3106 * UI, but the device is asleep so it is not visible to the user. This means 3107 * the user is not really aware of the process, because they can not see or 3108 * interact with it, but it is quite important because it what they expect to 3109 * return to once unlocking the device. 3110 */ 3111 public static final int IMPORTANCE_TOP_SLEEPING = 150; 3112 3113 /** 3114 * Constant for {@link #importance}: This process is running something 3115 * that is actively visible to the user, though not in the immediate 3116 * foreground. This may be running a window that is behind the current 3117 * foreground (so paused and with its state saved, not interacting with 3118 * the user, but visible to them to some degree); it may also be running 3119 * other services under the system's control that it inconsiders important. 3120 */ 3121 public static final int IMPORTANCE_VISIBLE = 200; 3122 3123 /** 3124 * Constant for {@link #importance}: {@link #IMPORTANCE_PERCEPTIBLE} had this wrong value 3125 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3126 * the value of {@link #IMPORTANCE_PERCEPTIBLE} has been fixed. 3127 * 3128 * <p>The system will return this value instead of {@link #IMPORTANCE_PERCEPTIBLE} 3129 * on Android versions below {@link Build.VERSION_CODES#O}. 3130 * 3131 * <p>On Android version {@link Build.VERSION_CODES#O} and later, this value will still be 3132 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 3133 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 3134 * the correct value {@link #IMPORTANCE_PERCEPTIBLE} will be returned. 3135 */ 3136 public static final int IMPORTANCE_PERCEPTIBLE_PRE_26 = 130; 3137 3138 /** 3139 * Constant for {@link #importance}: This process is not something the user 3140 * is directly aware of, but is otherwise perceptible to them to some degree. 3141 */ 3142 public static final int IMPORTANCE_PERCEPTIBLE = 230; 3143 3144 /** 3145 * Constant for {@link #importance}: {@link #IMPORTANCE_CANT_SAVE_STATE} had 3146 * this wrong value 3147 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3148 * the value of {@link #IMPORTANCE_CANT_SAVE_STATE} has been fixed. 3149 * 3150 * <p>The system will return this value instead of {@link #IMPORTANCE_CANT_SAVE_STATE} 3151 * on Android versions below {@link Build.VERSION_CODES#O}. 3152 * 3153 * <p>On Android version {@link Build.VERSION_CODES#O} after, this value will still be 3154 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 3155 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 3156 * the correct value {@link #IMPORTANCE_CANT_SAVE_STATE} will be returned. 3157 * 3158 * @hide 3159 */ 3160 public static final int IMPORTANCE_CANT_SAVE_STATE_PRE_26 = 170; 3161 3162 /** 3163 * Constant for {@link #importance}: This process is running an 3164 * application that can not save its state, and thus can't be killed 3165 * while in the background. 3166 * @hide 3167 */ 3168 public static final int IMPORTANCE_CANT_SAVE_STATE= 270; 3169 3170 /** 3171 * Constant for {@link #importance}: This process is contains services 3172 * that should remain running. These are background services apps have 3173 * started, not something the user is aware of, so they may be killed by 3174 * the system relatively freely (though it is generally desired that they 3175 * stay running as long as they want to). 3176 */ 3177 public static final int IMPORTANCE_SERVICE = 300; 3178 3179 /** 3180 * Constant for {@link #importance}: This process process contains 3181 * cached code that is expendable, not actively running any app components 3182 * we care about. 3183 */ 3184 public static final int IMPORTANCE_CACHED = 400; 3185 3186 /** 3187 * @deprecated Renamed to {@link #IMPORTANCE_CACHED}. 3188 */ 3189 public static final int IMPORTANCE_BACKGROUND = IMPORTANCE_CACHED; 3190 3191 /** 3192 * Constant for {@link #importance}: This process is empty of any 3193 * actively running code. 3194 * @deprecated This value is no longer reported, use {@link #IMPORTANCE_CACHED} instead. 3195 */ 3196 @Deprecated 3197 public static final int IMPORTANCE_EMPTY = 500; 3198 3199 /** 3200 * Constant for {@link #importance}: This process does not exist. 3201 */ 3202 public static final int IMPORTANCE_GONE = 1000; 3203 3204 /** 3205 * Convert a proc state to the correspondent IMPORTANCE_* constant. If the return value 3206 * will be passed to a client, use {@link #procStateToImportanceForClient}. 3207 * @hide 3208 */ 3209 public static @Importance int procStateToImportance(int procState) { 3210 if (procState == PROCESS_STATE_NONEXISTENT) { 3211 return IMPORTANCE_GONE; 3212 } else if (procState >= PROCESS_STATE_HOME) { 3213 return IMPORTANCE_CACHED; 3214 } else if (procState >= PROCESS_STATE_SERVICE) { 3215 return IMPORTANCE_SERVICE; 3216 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 3217 return IMPORTANCE_CANT_SAVE_STATE; 3218 } else if (procState >= PROCESS_STATE_TRANSIENT_BACKGROUND) { 3219 return IMPORTANCE_PERCEPTIBLE; 3220 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 3221 return IMPORTANCE_VISIBLE; 3222 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 3223 return IMPORTANCE_TOP_SLEEPING; 3224 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 3225 return IMPORTANCE_FOREGROUND_SERVICE; 3226 } else { 3227 return IMPORTANCE_FOREGROUND; 3228 } 3229 } 3230 3231 /** 3232 * Convert a proc state to the correspondent IMPORTANCE_* constant for a client represented 3233 * by a given {@link Context}, with converting {@link #IMPORTANCE_PERCEPTIBLE} 3234 * and {@link #IMPORTANCE_CANT_SAVE_STATE} to the corresponding "wrong" value if the 3235 * client's target SDK < {@link VERSION_CODES#O}. 3236 * @hide 3237 */ 3238 public static @Importance int procStateToImportanceForClient(int procState, 3239 Context clientContext) { 3240 return procStateToImportanceForTargetSdk(procState, 3241 clientContext.getApplicationInfo().targetSdkVersion); 3242 } 3243 3244 /** 3245 * See {@link #procStateToImportanceForClient}. 3246 * @hide 3247 */ 3248 public static @Importance int procStateToImportanceForTargetSdk(int procState, 3249 int targetSdkVersion) { 3250 final int importance = procStateToImportance(procState); 3251 3252 // For pre O apps, convert to the old, wrong values. 3253 if (targetSdkVersion < VERSION_CODES.O) { 3254 switch (importance) { 3255 case IMPORTANCE_PERCEPTIBLE: 3256 return IMPORTANCE_PERCEPTIBLE_PRE_26; 3257 case IMPORTANCE_CANT_SAVE_STATE: 3258 return IMPORTANCE_CANT_SAVE_STATE_PRE_26; 3259 } 3260 } 3261 return importance; 3262 } 3263 3264 /** @hide */ 3265 public static int importanceToProcState(@Importance int importance) { 3266 if (importance == IMPORTANCE_GONE) { 3267 return PROCESS_STATE_NONEXISTENT; 3268 } else if (importance >= IMPORTANCE_CACHED) { 3269 return PROCESS_STATE_HOME; 3270 } else if (importance >= IMPORTANCE_SERVICE) { 3271 return PROCESS_STATE_SERVICE; 3272 } else if (importance > IMPORTANCE_CANT_SAVE_STATE) { 3273 return PROCESS_STATE_HEAVY_WEIGHT; 3274 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 3275 return PROCESS_STATE_TRANSIENT_BACKGROUND; 3276 } else if (importance >= IMPORTANCE_VISIBLE) { 3277 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3278 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 3279 return PROCESS_STATE_TOP_SLEEPING; 3280 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 3281 return PROCESS_STATE_FOREGROUND_SERVICE; 3282 } else { 3283 return PROCESS_STATE_BOUND_FOREGROUND_SERVICE; 3284 } 3285 } 3286 3287 /** 3288 * The relative importance level that the system places on this process. 3289 * These constants are numbered so that "more important" values are 3290 * always smaller than "less important" values. 3291 */ 3292 public @Importance int importance; 3293 3294 /** 3295 * An additional ordering within a particular {@link #importance} 3296 * category, providing finer-grained information about the relative 3297 * utility of processes within a category. This number means nothing 3298 * except that a smaller values are more recently used (and thus 3299 * more important). Currently an LRU value is only maintained for 3300 * the {@link #IMPORTANCE_CACHED} category, though others may 3301 * be maintained in the future. 3302 */ 3303 public int lru; 3304 3305 /** 3306 * Constant for {@link #importanceReasonCode}: nothing special has 3307 * been specified for the reason for this level. 3308 */ 3309 public static final int REASON_UNKNOWN = 0; 3310 3311 /** 3312 * Constant for {@link #importanceReasonCode}: one of the application's 3313 * content providers is being used by another process. The pid of 3314 * the client process is in {@link #importanceReasonPid} and the 3315 * target provider in this process is in 3316 * {@link #importanceReasonComponent}. 3317 */ 3318 public static final int REASON_PROVIDER_IN_USE = 1; 3319 3320 /** 3321 * Constant for {@link #importanceReasonCode}: one of the application's 3322 * content providers is being used by another process. The pid of 3323 * the client process is in {@link #importanceReasonPid} and the 3324 * target provider in this process is in 3325 * {@link #importanceReasonComponent}. 3326 */ 3327 public static final int REASON_SERVICE_IN_USE = 2; 3328 3329 /** 3330 * The reason for {@link #importance}, if any. 3331 */ 3332 public int importanceReasonCode; 3333 3334 /** 3335 * For the specified values of {@link #importanceReasonCode}, this 3336 * is the process ID of the other process that is a client of this 3337 * process. This will be 0 if no other process is using this one. 3338 */ 3339 public int importanceReasonPid; 3340 3341 /** 3342 * For the specified values of {@link #importanceReasonCode}, this 3343 * is the name of the component that is being used in this process. 3344 */ 3345 public ComponentName importanceReasonComponent; 3346 3347 /** 3348 * When {@link #importanceReasonPid} is non-0, this is the importance 3349 * of the other pid. @hide 3350 */ 3351 public int importanceReasonImportance; 3352 3353 /** 3354 * Current process state, as per PROCESS_STATE_* constants. 3355 * @hide 3356 */ 3357 public int processState; 3358 3359 public RunningAppProcessInfo() { 3360 importance = IMPORTANCE_FOREGROUND; 3361 importanceReasonCode = REASON_UNKNOWN; 3362 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 3363 } 3364 3365 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 3366 processName = pProcessName; 3367 pid = pPid; 3368 pkgList = pArr; 3369 } 3370 3371 public int describeContents() { 3372 return 0; 3373 } 3374 3375 public void writeToParcel(Parcel dest, int flags) { 3376 dest.writeString(processName); 3377 dest.writeInt(pid); 3378 dest.writeInt(uid); 3379 dest.writeStringArray(pkgList); 3380 dest.writeInt(this.flags); 3381 dest.writeInt(lastTrimLevel); 3382 dest.writeInt(importance); 3383 dest.writeInt(lru); 3384 dest.writeInt(importanceReasonCode); 3385 dest.writeInt(importanceReasonPid); 3386 ComponentName.writeToParcel(importanceReasonComponent, dest); 3387 dest.writeInt(importanceReasonImportance); 3388 dest.writeInt(processState); 3389 } 3390 3391 public void readFromParcel(Parcel source) { 3392 processName = source.readString(); 3393 pid = source.readInt(); 3394 uid = source.readInt(); 3395 pkgList = source.readStringArray(); 3396 flags = source.readInt(); 3397 lastTrimLevel = source.readInt(); 3398 importance = source.readInt(); 3399 lru = source.readInt(); 3400 importanceReasonCode = source.readInt(); 3401 importanceReasonPid = source.readInt(); 3402 importanceReasonComponent = ComponentName.readFromParcel(source); 3403 importanceReasonImportance = source.readInt(); 3404 processState = source.readInt(); 3405 } 3406 3407 public static final Creator<RunningAppProcessInfo> CREATOR = 3408 new Creator<RunningAppProcessInfo>() { 3409 public RunningAppProcessInfo createFromParcel(Parcel source) { 3410 return new RunningAppProcessInfo(source); 3411 } 3412 public RunningAppProcessInfo[] newArray(int size) { 3413 return new RunningAppProcessInfo[size]; 3414 } 3415 }; 3416 3417 private RunningAppProcessInfo(Parcel source) { 3418 readFromParcel(source); 3419 } 3420 } 3421 3422 /** 3423 * Returns a list of application processes installed on external media 3424 * that are running on the device. 3425 * 3426 * <p><b>Note: this method is only intended for debugging or building 3427 * a user-facing process management UI.</b></p> 3428 * 3429 * @return Returns a list of ApplicationInfo records, or null if none 3430 * This list ordering is not specified. 3431 * @hide 3432 */ 3433 public List<ApplicationInfo> getRunningExternalApplications() { 3434 try { 3435 return getService().getRunningExternalApplications(); 3436 } catch (RemoteException e) { 3437 throw e.rethrowFromSystemServer(); 3438 } 3439 } 3440 3441 /** 3442 * Sets the memory trim mode for a process and schedules a memory trim operation. 3443 * 3444 * <p><b>Note: this method is only intended for testing framework.</b></p> 3445 * 3446 * @return Returns true if successful. 3447 * @hide 3448 */ 3449 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3450 try { 3451 return getService().setProcessMemoryTrimLevel(process, userId, 3452 level); 3453 } catch (RemoteException e) { 3454 throw e.rethrowFromSystemServer(); 3455 } 3456 } 3457 3458 /** 3459 * Returns a list of application processes that are running on the device. 3460 * 3461 * <p><b>Note: this method is only intended for debugging or building 3462 * a user-facing process management UI.</b></p> 3463 * 3464 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3465 * running processes (it will not return an empty list). This list ordering is not 3466 * specified. 3467 */ 3468 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3469 try { 3470 return getService().getRunningAppProcesses(); 3471 } catch (RemoteException e) { 3472 throw e.rethrowFromSystemServer(); 3473 } 3474 } 3475 3476 /** 3477 * Return the importance of a given package name, based on the processes that are 3478 * currently running. The return value is one of the importance constants defined 3479 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3480 * processes that this package has code running inside of. If there are no processes 3481 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3482 * @hide 3483 */ 3484 @SystemApi @TestApi 3485 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3486 public @RunningAppProcessInfo.Importance int getPackageImportance(String packageName) { 3487 try { 3488 int procState = getService().getPackageProcessState(packageName, 3489 mContext.getOpPackageName()); 3490 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3491 } catch (RemoteException e) { 3492 throw e.rethrowFromSystemServer(); 3493 } 3494 } 3495 3496 /** 3497 * Return the importance of a given uid, based on the processes that are 3498 * currently running. The return value is one of the importance constants defined 3499 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3500 * processes that this uid has running. If there are no processes 3501 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3502 * @hide 3503 */ 3504 @SystemApi @TestApi 3505 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3506 public @RunningAppProcessInfo.Importance int getUidImportance(int uid) { 3507 try { 3508 int procState = getService().getUidProcessState(uid, 3509 mContext.getOpPackageName()); 3510 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3511 } catch (RemoteException e) { 3512 throw e.rethrowFromSystemServer(); 3513 } 3514 } 3515 3516 /** 3517 * Callback to get reports about changes to the importance of a uid. Use with 3518 * {@link #addOnUidImportanceListener}. 3519 * @hide 3520 */ 3521 @SystemApi @TestApi 3522 public interface OnUidImportanceListener { 3523 /** 3524 * The importance if a given uid has changed. Will be one of the importance 3525 * values in {@link RunningAppProcessInfo}; 3526 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3527 * when the uid is no longer running at all. This callback will happen on a thread 3528 * from a thread pool, not the main UI thread. 3529 * @param uid The uid whose importance has changed. 3530 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3531 */ 3532 void onUidImportance(int uid, @RunningAppProcessInfo.Importance int importance); 3533 } 3534 3535 /** 3536 * Start monitoring changes to the imoportance of uids running in the system. 3537 * @param listener The listener callback that will receive change reports. 3538 * @param importanceCutpoint The level of importance in which the caller is interested 3539 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3540 * is used here, you will receive a call each time a uids importance transitions between 3541 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3542 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3543 * 3544 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3545 * permission to use this feature.</p> 3546 * 3547 * @throws IllegalArgumentException If the listener is already registered. 3548 * @throws SecurityException If the caller does not hold 3549 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3550 * @hide 3551 */ 3552 @SystemApi @TestApi 3553 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3554 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3555 @RunningAppProcessInfo.Importance int importanceCutpoint) { 3556 synchronized (this) { 3557 if (mImportanceListeners.containsKey(listener)) { 3558 throw new IllegalArgumentException("Listener already registered: " + listener); 3559 } 3560 // TODO: implement the cut point in the system process to avoid IPCs. 3561 UidObserver observer = new UidObserver(listener, mContext); 3562 try { 3563 getService().registerUidObserver(observer, 3564 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3565 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3566 mContext.getOpPackageName()); 3567 } catch (RemoteException e) { 3568 throw e.rethrowFromSystemServer(); 3569 } 3570 mImportanceListeners.put(listener, observer); 3571 } 3572 } 3573 3574 /** 3575 * Remove an importance listener that was previously registered with 3576 * {@link #addOnUidImportanceListener}. 3577 * 3578 * @throws IllegalArgumentException If the listener is not registered. 3579 * @hide 3580 */ 3581 @SystemApi @TestApi 3582 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3583 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3584 synchronized (this) { 3585 UidObserver observer = mImportanceListeners.remove(listener); 3586 if (observer == null) { 3587 throw new IllegalArgumentException("Listener not registered: " + listener); 3588 } 3589 try { 3590 getService().unregisterUidObserver(observer); 3591 } catch (RemoteException e) { 3592 throw e.rethrowFromSystemServer(); 3593 } 3594 } 3595 } 3596 3597 /** 3598 * Return global memory state information for the calling process. This 3599 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3600 * only fields that will be filled in are 3601 * {@link RunningAppProcessInfo#pid}, 3602 * {@link RunningAppProcessInfo#uid}, 3603 * {@link RunningAppProcessInfo#lastTrimLevel}, 3604 * {@link RunningAppProcessInfo#importance}, 3605 * {@link RunningAppProcessInfo#lru}, and 3606 * {@link RunningAppProcessInfo#importanceReasonCode}. 3607 */ 3608 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3609 try { 3610 getService().getMyMemoryState(outState); 3611 } catch (RemoteException e) { 3612 throw e.rethrowFromSystemServer(); 3613 } 3614 } 3615 3616 /** 3617 * Return information about the memory usage of one or more processes. 3618 * 3619 * <p><b>Note: this method is only intended for debugging or building 3620 * a user-facing process management UI.</b></p> 3621 * 3622 * @param pids The pids of the processes whose memory usage is to be 3623 * retrieved. 3624 * @return Returns an array of memory information, one for each 3625 * requested pid. 3626 */ 3627 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3628 try { 3629 return getService().getProcessMemoryInfo(pids); 3630 } catch (RemoteException e) { 3631 throw e.rethrowFromSystemServer(); 3632 } 3633 } 3634 3635 /** 3636 * @deprecated This is now just a wrapper for 3637 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3638 * is no longer available to applications because it allows them to 3639 * break other applications by removing their alarms, stopping their 3640 * services, etc. 3641 */ 3642 @Deprecated 3643 public void restartPackage(String packageName) { 3644 killBackgroundProcesses(packageName); 3645 } 3646 3647 /** 3648 * Have the system immediately kill all background processes associated 3649 * with the given package. This is the same as the kernel killing those 3650 * processes to reclaim memory; the system will take care of restarting 3651 * these processes in the future as needed. 3652 * 3653 * @param packageName The name of the package whose processes are to 3654 * be killed. 3655 */ 3656 @RequiresPermission(Manifest.permission.KILL_BACKGROUND_PROCESSES) 3657 public void killBackgroundProcesses(String packageName) { 3658 try { 3659 getService().killBackgroundProcesses(packageName, 3660 UserHandle.myUserId()); 3661 } catch (RemoteException e) { 3662 throw e.rethrowFromSystemServer(); 3663 } 3664 } 3665 3666 /** 3667 * Kills the specified UID. 3668 * @param uid The UID to kill. 3669 * @param reason The reason for the kill. 3670 * 3671 * @hide 3672 */ 3673 @SystemApi 3674 @RequiresPermission(Manifest.permission.KILL_UID) 3675 public void killUid(int uid, String reason) { 3676 try { 3677 getService().killUid(UserHandle.getAppId(uid), 3678 UserHandle.getUserId(uid), reason); 3679 } catch (RemoteException e) { 3680 throw e.rethrowFromSystemServer(); 3681 } 3682 } 3683 3684 /** 3685 * Have the system perform a force stop of everything associated with 3686 * the given application package. All processes that share its uid 3687 * will be killed, all services it has running stopped, all activities 3688 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3689 * broadcast will be sent, so that any of its registered alarms can 3690 * be stopped, notifications removed, etc. 3691 * 3692 * <p>You must hold the permission 3693 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3694 * call this method. 3695 * 3696 * @param packageName The name of the package to be stopped. 3697 * @param userId The user for which the running package is to be stopped. 3698 * 3699 * @hide This is not available to third party applications due to 3700 * it allowing them to break other applications by stopping their 3701 * services, removing their alarms, etc. 3702 */ 3703 public void forceStopPackageAsUser(String packageName, int userId) { 3704 try { 3705 getService().forceStopPackage(packageName, userId); 3706 } catch (RemoteException e) { 3707 throw e.rethrowFromSystemServer(); 3708 } 3709 } 3710 3711 /** 3712 * @see #forceStopPackageAsUser(String, int) 3713 * @hide 3714 */ 3715 @SystemApi 3716 @RequiresPermission(Manifest.permission.FORCE_STOP_PACKAGES) 3717 public void forceStopPackage(String packageName) { 3718 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3719 } 3720 3721 /** 3722 * Get the device configuration attributes. 3723 */ 3724 public ConfigurationInfo getDeviceConfigurationInfo() { 3725 try { 3726 return getService().getDeviceConfigurationInfo(); 3727 } catch (RemoteException e) { 3728 throw e.rethrowFromSystemServer(); 3729 } 3730 } 3731 3732 /** 3733 * Get the preferred density of icons for the launcher. This is used when 3734 * custom drawables are created (e.g., for shortcuts). 3735 * 3736 * @return density in terms of DPI 3737 */ 3738 public int getLauncherLargeIconDensity() { 3739 final Resources res = mContext.getResources(); 3740 final int density = res.getDisplayMetrics().densityDpi; 3741 final int sw = res.getConfiguration().smallestScreenWidthDp; 3742 3743 if (sw < 600) { 3744 // Smaller than approx 7" tablets, use the regular icon size. 3745 return density; 3746 } 3747 3748 switch (density) { 3749 case DisplayMetrics.DENSITY_LOW: 3750 return DisplayMetrics.DENSITY_MEDIUM; 3751 case DisplayMetrics.DENSITY_MEDIUM: 3752 return DisplayMetrics.DENSITY_HIGH; 3753 case DisplayMetrics.DENSITY_TV: 3754 return DisplayMetrics.DENSITY_XHIGH; 3755 case DisplayMetrics.DENSITY_HIGH: 3756 return DisplayMetrics.DENSITY_XHIGH; 3757 case DisplayMetrics.DENSITY_XHIGH: 3758 return DisplayMetrics.DENSITY_XXHIGH; 3759 case DisplayMetrics.DENSITY_XXHIGH: 3760 return DisplayMetrics.DENSITY_XHIGH * 2; 3761 default: 3762 // The density is some abnormal value. Return some other 3763 // abnormal value that is a reasonable scaling of it. 3764 return (int)((density*1.5f)+.5f); 3765 } 3766 } 3767 3768 /** 3769 * Get the preferred launcher icon size. This is used when custom drawables 3770 * are created (e.g., for shortcuts). 3771 * 3772 * @return dimensions of square icons in terms of pixels 3773 */ 3774 public int getLauncherLargeIconSize() { 3775 return getLauncherLargeIconSizeInner(mContext); 3776 } 3777 3778 static int getLauncherLargeIconSizeInner(Context context) { 3779 final Resources res = context.getResources(); 3780 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3781 final int sw = res.getConfiguration().smallestScreenWidthDp; 3782 3783 if (sw < 600) { 3784 // Smaller than approx 7" tablets, use the regular icon size. 3785 return size; 3786 } 3787 3788 final int density = res.getDisplayMetrics().densityDpi; 3789 3790 switch (density) { 3791 case DisplayMetrics.DENSITY_LOW: 3792 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3793 case DisplayMetrics.DENSITY_MEDIUM: 3794 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3795 case DisplayMetrics.DENSITY_TV: 3796 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3797 case DisplayMetrics.DENSITY_HIGH: 3798 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3799 case DisplayMetrics.DENSITY_XHIGH: 3800 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3801 case DisplayMetrics.DENSITY_XXHIGH: 3802 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3803 default: 3804 // The density is some abnormal value. Return some other 3805 // abnormal value that is a reasonable scaling of it. 3806 return (int)((size*1.5f) + .5f); 3807 } 3808 } 3809 3810 /** 3811 * Returns "true" if the user interface is currently being messed with 3812 * by a monkey. 3813 */ 3814 public static boolean isUserAMonkey() { 3815 try { 3816 return getService().isUserAMonkey(); 3817 } catch (RemoteException e) { 3818 throw e.rethrowFromSystemServer(); 3819 } 3820 } 3821 3822 /** 3823 * Returns "true" if device is running in a test harness. 3824 */ 3825 public static boolean isRunningInTestHarness() { 3826 return SystemProperties.getBoolean("ro.test_harness", false); 3827 } 3828 3829 /** 3830 * Returns the launch count of each installed package. 3831 * 3832 * @hide 3833 */ 3834 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3835 try { 3836 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3837 ServiceManager.getService("usagestats")); 3838 if (usageStatsService == null) { 3839 return new HashMap<String, Integer>(); 3840 } 3841 3842 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3843 ActivityThread.currentPackageName()); 3844 if (allPkgUsageStats == null) { 3845 return new HashMap<String, Integer>(); 3846 } 3847 3848 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3849 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3850 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3851 } 3852 3853 return launchCounts; 3854 } catch (RemoteException e) { 3855 Log.w(TAG, "Could not query launch counts", e); 3856 return new HashMap<String, Integer>(); 3857 } 3858 }*/ 3859 3860 /** @hide */ 3861 public static int checkComponentPermission(String permission, int uid, 3862 int owningUid, boolean exported) { 3863 // Root, system server get to do everything. 3864 final int appId = UserHandle.getAppId(uid); 3865 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3866 return PackageManager.PERMISSION_GRANTED; 3867 } 3868 // Isolated processes don't get any permissions. 3869 if (UserHandle.isIsolated(uid)) { 3870 return PackageManager.PERMISSION_DENIED; 3871 } 3872 // If there is a uid that owns whatever is being accessed, it has 3873 // blanket access to it regardless of the permissions it requires. 3874 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3875 return PackageManager.PERMISSION_GRANTED; 3876 } 3877 // If the target is not exported, then nobody else can get to it. 3878 if (!exported) { 3879 /* 3880 RuntimeException here = new RuntimeException("here"); 3881 here.fillInStackTrace(); 3882 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3883 here); 3884 */ 3885 return PackageManager.PERMISSION_DENIED; 3886 } 3887 if (permission == null) { 3888 return PackageManager.PERMISSION_GRANTED; 3889 } 3890 try { 3891 return AppGlobals.getPackageManager() 3892 .checkUidPermission(permission, uid); 3893 } catch (RemoteException e) { 3894 throw e.rethrowFromSystemServer(); 3895 } 3896 } 3897 3898 /** @hide */ 3899 public static int checkUidPermission(String permission, int uid) { 3900 try { 3901 return AppGlobals.getPackageManager() 3902 .checkUidPermission(permission, uid); 3903 } catch (RemoteException e) { 3904 throw e.rethrowFromSystemServer(); 3905 } 3906 } 3907 3908 /** 3909 * @hide 3910 * Helper for dealing with incoming user arguments to system service calls. 3911 * Takes care of checking permissions and converting USER_CURRENT to the 3912 * actual current user. 3913 * 3914 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3915 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3916 * @param userId The user id argument supplied by the caller -- this is the user 3917 * they want to run as. 3918 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3919 * to get a USER_ALL returned and deal with it correctly. If false, 3920 * an exception will be thrown if USER_ALL is supplied. 3921 * @param requireFull If true, the caller must hold 3922 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3923 * different user than their current process; otherwise they must hold 3924 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3925 * @param name Optional textual name of the incoming call; only for generating error messages. 3926 * @param callerPackage Optional package name of caller; only for error messages. 3927 * 3928 * @return Returns the user ID that the call should run as. Will always be a concrete 3929 * user number, unless <var>allowAll</var> is true in which case it could also be 3930 * USER_ALL. 3931 */ 3932 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3933 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3934 if (UserHandle.getUserId(callingUid) == userId) { 3935 return userId; 3936 } 3937 try { 3938 return getService().handleIncomingUser(callingPid, 3939 callingUid, userId, allowAll, requireFull, name, callerPackage); 3940 } catch (RemoteException e) { 3941 throw e.rethrowFromSystemServer(); 3942 } 3943 } 3944 3945 /** 3946 * Gets the userId of the current foreground user. Requires system permissions. 3947 * @hide 3948 */ 3949 @SystemApi 3950 @RequiresPermission(anyOf = { 3951 "android.permission.INTERACT_ACROSS_USERS", 3952 "android.permission.INTERACT_ACROSS_USERS_FULL" 3953 }) 3954 public static int getCurrentUser() { 3955 UserInfo ui; 3956 try { 3957 ui = getService().getCurrentUser(); 3958 return ui != null ? ui.id : 0; 3959 } catch (RemoteException e) { 3960 throw e.rethrowFromSystemServer(); 3961 } 3962 } 3963 3964 /** 3965 * @param userid the user's id. Zero indicates the default user. 3966 * @hide 3967 */ 3968 public boolean switchUser(int userid) { 3969 try { 3970 return getService().switchUser(userid); 3971 } catch (RemoteException e) { 3972 throw e.rethrowFromSystemServer(); 3973 } 3974 } 3975 3976 /** 3977 * Logs out current current foreground user by switching to the system user and stopping the 3978 * user being switched from. 3979 * @hide 3980 */ 3981 public static void logoutCurrentUser() { 3982 int currentUser = ActivityManager.getCurrentUser(); 3983 if (currentUser != UserHandle.USER_SYSTEM) { 3984 try { 3985 getService().switchUser(UserHandle.USER_SYSTEM); 3986 getService().stopUser(currentUser, /* force= */ false, null); 3987 } catch (RemoteException e) { 3988 e.rethrowFromSystemServer(); 3989 } 3990 } 3991 } 3992 3993 /** {@hide} */ 3994 public static final int FLAG_OR_STOPPED = 1 << 0; 3995 /** {@hide} */ 3996 public static final int FLAG_AND_LOCKED = 1 << 1; 3997 /** {@hide} */ 3998 public static final int FLAG_AND_UNLOCKED = 1 << 2; 3999 /** {@hide} */ 4000 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 4001 4002 /** 4003 * Return whether the given user is actively running. This means that 4004 * the user is in the "started" state, not "stopped" -- it is currently 4005 * allowed to run code through scheduled alarms, receiving broadcasts, 4006 * etc. A started user may be either the current foreground user or a 4007 * background user; the result here does not distinguish between the two. 4008 * @param userId the user's id. Zero indicates the default user. 4009 * @hide 4010 */ 4011 public boolean isUserRunning(int userId) { 4012 try { 4013 return getService().isUserRunning(userId, 0); 4014 } catch (RemoteException e) { 4015 throw e.rethrowFromSystemServer(); 4016 } 4017 } 4018 4019 /** {@hide} */ 4020 public boolean isVrModePackageEnabled(ComponentName component) { 4021 try { 4022 return getService().isVrModePackageEnabled(component); 4023 } catch (RemoteException e) { 4024 throw e.rethrowFromSystemServer(); 4025 } 4026 } 4027 4028 /** 4029 * Perform a system dump of various state associated with the given application 4030 * package name. This call blocks while the dump is being performed, so should 4031 * not be done on a UI thread. The data will be written to the given file 4032 * descriptor as text. 4033 * @param fd The file descriptor that the dump should be written to. The file 4034 * descriptor is <em>not</em> closed by this function; the caller continues to 4035 * own it. 4036 * @param packageName The name of the package that is to be dumped. 4037 */ 4038 @RequiresPermission(Manifest.permission.DUMP) 4039 public void dumpPackageState(FileDescriptor fd, String packageName) { 4040 dumpPackageStateStatic(fd, packageName); 4041 } 4042 4043 /** 4044 * @hide 4045 */ 4046 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 4047 FileOutputStream fout = new FileOutputStream(fd); 4048 PrintWriter pw = new FastPrintWriter(fout); 4049 dumpService(pw, fd, "package", new String[] { packageName }); 4050 pw.println(); 4051 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 4052 "-a", "package", packageName }); 4053 pw.println(); 4054 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 4055 pw.println(); 4056 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 4057 pw.println(); 4058 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 4059 pw.println(); 4060 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 4061 pw.flush(); 4062 } 4063 4064 /** 4065 * @hide 4066 */ 4067 public static boolean isSystemReady() { 4068 if (!sSystemReady) { 4069 if (ActivityThread.isSystem()) { 4070 sSystemReady = 4071 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 4072 } else { 4073 // Since this is being called from outside system server, system should be 4074 // ready by now. 4075 sSystemReady = true; 4076 } 4077 } 4078 return sSystemReady; 4079 } 4080 4081 /** 4082 * @hide 4083 */ 4084 public static void broadcastStickyIntent(Intent intent, int userId) { 4085 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 4086 } 4087 4088 /** 4089 * Convenience for sending a sticky broadcast. For internal use only. 4090 * 4091 * @hide 4092 */ 4093 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 4094 try { 4095 getService().broadcastIntent( 4096 null, intent, null, null, Activity.RESULT_OK, null, null, 4097 null /*permission*/, appOp, null, false, true, userId); 4098 } catch (RemoteException ex) { 4099 } 4100 } 4101 4102 /** 4103 * @hide 4104 */ 4105 public static void noteWakeupAlarm(PendingIntent ps, int sourceUid, String sourcePkg, 4106 String tag) { 4107 try { 4108 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, 4109 sourceUid, sourcePkg, tag); 4110 } catch (RemoteException ex) { 4111 } 4112 } 4113 4114 /** 4115 * @hide 4116 */ 4117 public static void noteAlarmStart(PendingIntent ps, int sourceUid, String tag) { 4118 try { 4119 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4120 } catch (RemoteException ex) { 4121 } 4122 } 4123 4124 /** 4125 * @hide 4126 */ 4127 public static void noteAlarmFinish(PendingIntent ps, int sourceUid, String tag) { 4128 try { 4129 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4130 } catch (RemoteException ex) { 4131 } 4132 } 4133 4134 /** 4135 * @hide 4136 */ 4137 public static IActivityManager getService() { 4138 return IActivityManagerSingleton.get(); 4139 } 4140 4141 private static final Singleton<IActivityManager> IActivityManagerSingleton = 4142 new Singleton<IActivityManager>() { 4143 @Override 4144 protected IActivityManager create() { 4145 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 4146 final IActivityManager am = IActivityManager.Stub.asInterface(b); 4147 return am; 4148 } 4149 }; 4150 4151 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 4152 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 4153 IBinder service = ServiceManager.checkService(name); 4154 if (service == null) { 4155 pw.println(" (Service not found)"); 4156 return; 4157 } 4158 TransferPipe tp = null; 4159 try { 4160 pw.flush(); 4161 tp = new TransferPipe(); 4162 tp.setBufferPrefix(" "); 4163 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 4164 tp.go(fd, 10000); 4165 } catch (Throwable e) { 4166 if (tp != null) { 4167 tp.kill(); 4168 } 4169 pw.println("Failure dumping service:"); 4170 e.printStackTrace(pw); 4171 } 4172 } 4173 4174 /** 4175 * Request that the system start watching for the calling process to exceed a pss 4176 * size as given here. Once called, the system will look for any occasions where it 4177 * sees the associated process with a larger pss size and, when this happens, automatically 4178 * pull a heap dump from it and allow the user to share the data. Note that this request 4179 * continues running even if the process is killed and restarted. To remove the watch, 4180 * use {@link #clearWatchHeapLimit()}. 4181 * 4182 * <p>This API only work if the calling process has been marked as 4183 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 4184 * (userdebug or eng) build.</p> 4185 * 4186 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 4187 * handle heap limit reports themselves.</p> 4188 * 4189 * @param pssSize The size in bytes to set the limit at. 4190 */ 4191 public void setWatchHeapLimit(long pssSize) { 4192 try { 4193 getService().setDumpHeapDebugLimit(null, 0, pssSize, 4194 mContext.getPackageName()); 4195 } catch (RemoteException e) { 4196 throw e.rethrowFromSystemServer(); 4197 } 4198 } 4199 4200 /** 4201 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 4202 * If your package has an activity handling this action, it will be launched with the 4203 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 4204 * match the activty must support this action and a MIME type of "*/*". 4205 */ 4206 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 4207 4208 /** 4209 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 4210 */ 4211 public void clearWatchHeapLimit() { 4212 try { 4213 getService().setDumpHeapDebugLimit(null, 0, 0, null); 4214 } catch (RemoteException e) { 4215 throw e.rethrowFromSystemServer(); 4216 } 4217 } 4218 4219 /** 4220 * Return whether currently in lock task mode. When in this mode 4221 * no new tasks can be created or switched to. 4222 * 4223 * @see Activity#startLockTask() 4224 * 4225 * @deprecated Use {@link #getLockTaskModeState} instead. 4226 */ 4227 @Deprecated 4228 public boolean isInLockTaskMode() { 4229 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 4230 } 4231 4232 /** 4233 * Return the current state of task locking. The three possible outcomes 4234 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 4235 * and {@link #LOCK_TASK_MODE_PINNED}. 4236 * 4237 * @see Activity#startLockTask() 4238 */ 4239 public int getLockTaskModeState() { 4240 try { 4241 return getService().getLockTaskModeState(); 4242 } catch (RemoteException e) { 4243 throw e.rethrowFromSystemServer(); 4244 } 4245 } 4246 4247 /** 4248 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 4249 * thread can be a VR thread in a process at a time, and that thread may be subject to 4250 * restrictions on the amount of time it can run. 4251 * 4252 * If persistent VR mode is set, whatever thread has been granted aggressive scheduling via this 4253 * method will return to normal operation, and calling this method will do nothing while 4254 * persistent VR mode is enabled. 4255 * 4256 * To reset the VR thread for an application, a tid of 0 can be passed. 4257 * 4258 * @see android.os.Process#myTid() 4259 * @param tid tid of the VR thread 4260 */ 4261 public static void setVrThread(int tid) { 4262 try { 4263 getService().setVrThread(tid); 4264 } catch (RemoteException e) { 4265 // pass 4266 } 4267 } 4268 4269 /** 4270 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads that persist 4271 * beyond a single process. Only one thread can be a 4272 * persistent VR thread at a time, and that thread may be subject to restrictions on the amount 4273 * of time it can run. Calling this method will disable aggressive scheduling for non-persistent 4274 * VR threads set via {@link #setVrThread}. If persistent VR mode is disabled then the 4275 * persistent VR thread loses its new scheduling priority; this method must be called again to 4276 * set the persistent thread. 4277 * 4278 * To reset the persistent VR thread, a tid of 0 can be passed. 4279 * 4280 * @see android.os.Process#myTid() 4281 * @param tid tid of the VR thread 4282 * @hide 4283 */ 4284 @RequiresPermission(Manifest.permission.RESTRICTED_VR_ACCESS) 4285 public static void setPersistentVrThread(int tid) { 4286 try { 4287 getService().setPersistentVrThread(tid); 4288 } catch (RemoteException e) { 4289 // pass 4290 } 4291 } 4292 4293 /** 4294 * The AppTask allows you to manage your own application's tasks. 4295 * See {@link android.app.ActivityManager#getAppTasks()} 4296 */ 4297 public static class AppTask { 4298 private IAppTask mAppTaskImpl; 4299 4300 /** @hide */ 4301 public AppTask(IAppTask task) { 4302 mAppTaskImpl = task; 4303 } 4304 4305 /** 4306 * Finishes all activities in this task and removes it from the recent tasks list. 4307 */ 4308 public void finishAndRemoveTask() { 4309 try { 4310 mAppTaskImpl.finishAndRemoveTask(); 4311 } catch (RemoteException e) { 4312 throw e.rethrowFromSystemServer(); 4313 } 4314 } 4315 4316 /** 4317 * Get the RecentTaskInfo associated with this task. 4318 * 4319 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 4320 */ 4321 public RecentTaskInfo getTaskInfo() { 4322 try { 4323 return mAppTaskImpl.getTaskInfo(); 4324 } catch (RemoteException e) { 4325 throw e.rethrowFromSystemServer(); 4326 } 4327 } 4328 4329 /** 4330 * Bring this task to the foreground. If it contains activities, they will be 4331 * brought to the foreground with it and their instances re-created if needed. 4332 * If it doesn't contain activities, the root activity of the task will be 4333 * re-launched. 4334 */ 4335 public void moveToFront() { 4336 try { 4337 mAppTaskImpl.moveToFront(); 4338 } catch (RemoteException e) { 4339 throw e.rethrowFromSystemServer(); 4340 } 4341 } 4342 4343 /** 4344 * Start an activity in this task. Brings the task to the foreground. If this task 4345 * is not currently active (that is, its id < 0), then a new activity for the given 4346 * Intent will be launched as the root of the task and the task brought to the 4347 * foreground. Otherwise, if this task is currently active and the Intent does not specify 4348 * an activity to launch in a new task, then a new activity for the given Intent will 4349 * be launched on top of the task and the task brought to the foreground. If this 4350 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 4351 * or would otherwise be launched in to a new task, then the activity not launched but 4352 * this task be brought to the foreground and a new intent delivered to the top 4353 * activity if appropriate. 4354 * 4355 * <p>In other words, you generally want to use an Intent here that does not specify 4356 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 4357 * and let the system do the right thing.</p> 4358 * 4359 * @param intent The Intent describing the new activity to be launched on the task. 4360 * @param options Optional launch options. 4361 * 4362 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 4363 */ 4364 public void startActivity(Context context, Intent intent, Bundle options) { 4365 ActivityThread thread = ActivityThread.currentActivityThread(); 4366 thread.getInstrumentation().execStartActivityFromAppTask(context, 4367 thread.getApplicationThread(), mAppTaskImpl, intent, options); 4368 } 4369 4370 /** 4371 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 4372 * Intent of this AppTask. 4373 * 4374 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 4375 * be set; otherwise, it will be cleared. 4376 */ 4377 public void setExcludeFromRecents(boolean exclude) { 4378 try { 4379 mAppTaskImpl.setExcludeFromRecents(exclude); 4380 } catch (RemoteException e) { 4381 throw e.rethrowFromSystemServer(); 4382 } 4383 } 4384 } 4385} 4386