ActivityManager.java revision e7d2b85068dfda580983a510f60983984c37e7ca
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.app; 18 19import static android.app.WindowConfiguration.WINDOWING_MODE_DOCKED; 20import static android.app.WindowConfiguration.WINDOWING_MODE_FREEFORM; 21import static android.app.WindowConfiguration.WINDOWING_MODE_FULLSCREEN; 22import static android.app.WindowConfiguration.WINDOWING_MODE_PINNED; 23import static android.app.WindowConfiguration.WINDOWING_MODE_UNDEFINED; 24 25import android.Manifest; 26import android.annotation.IntDef; 27import android.annotation.NonNull; 28import android.annotation.Nullable; 29import android.annotation.RequiresPermission; 30import android.annotation.SystemApi; 31import android.annotation.SystemService; 32import android.annotation.TestApi; 33import android.content.ComponentName; 34import android.content.Context; 35import android.content.Intent; 36import android.content.UriPermission; 37import android.content.pm.ActivityInfo; 38import android.content.pm.ApplicationInfo; 39import android.content.pm.ConfigurationInfo; 40import android.content.pm.IPackageDataObserver; 41import android.content.pm.PackageManager; 42import android.content.pm.ParceledListSlice; 43import android.content.pm.UserInfo; 44import android.content.res.Configuration; 45import android.content.res.Resources; 46import android.graphics.Bitmap; 47import android.graphics.Canvas; 48import android.graphics.Color; 49import android.graphics.GraphicBuffer; 50import android.graphics.Matrix; 51import android.graphics.Point; 52import android.graphics.Rect; 53import android.os.BatteryStats; 54import android.os.Build; 55import android.os.Build.VERSION_CODES; 56import android.os.Bundle; 57import android.os.Debug; 58import android.os.Handler; 59import android.os.IBinder; 60import android.os.Parcel; 61import android.os.ParcelFileDescriptor; 62import android.os.Parcelable; 63import android.os.Process; 64import android.os.RemoteException; 65import android.os.ServiceManager; 66import android.os.SystemProperties; 67import android.os.UserHandle; 68import android.text.TextUtils; 69import android.util.ArrayMap; 70import android.util.DisplayMetrics; 71import android.util.Singleton; 72import android.util.Size; 73 74import com.android.internal.app.procstats.ProcessStats; 75import com.android.internal.os.RoSystemProperties; 76import com.android.internal.os.TransferPipe; 77import com.android.internal.util.FastPrintWriter; 78import com.android.server.LocalServices; 79 80import org.xmlpull.v1.XmlSerializer; 81 82import java.io.FileDescriptor; 83import java.io.FileOutputStream; 84import java.io.IOException; 85import java.io.PrintWriter; 86import java.lang.annotation.Retention; 87import java.lang.annotation.RetentionPolicy; 88import java.util.ArrayList; 89import java.util.List; 90 91/** 92 * <p> 93 * This class gives information about, and interacts 94 * with, activities, services, and the containing 95 * process. 96 * </p> 97 * 98 * <p> 99 * A number of the methods in this class are for 100 * debugging or informational purposes and they should 101 * not be used to affect any runtime behavior of 102 * your app. These methods are called out as such in 103 * the method level documentation. 104 * </p> 105 * 106 *<p> 107 * Most application developers should not have the need to 108 * use this class, most of whose methods are for specialized 109 * use cases. However, a few methods are more broadly applicable. 110 * For instance, {@link android.app.ActivityManager#isLowRamDevice() isLowRamDevice()} 111 * enables your app to detect whether it is running on a low-memory device, 112 * and behave accordingly. 113 * {@link android.app.ActivityManager#clearApplicationUserData() clearApplicationUserData()} 114 * is for apps with reset-data functionality. 115 * </p> 116 * 117 * <p> 118 * In some special use cases, where an app interacts with 119 * its Task stack, the app may use the 120 * {@link android.app.ActivityManager.AppTask} and 121 * {@link android.app.ActivityManager.RecentTaskInfo} inner 122 * classes. However, in general, the methods in this class should 123 * be used for testing and debugging purposes only. 124 * </p> 125 */ 126@SystemService(Context.ACTIVITY_SERVICE) 127public class ActivityManager { 128 private static String TAG = "ActivityManager"; 129 130 private static int gMaxRecentTasks = -1; 131 132 private final Context mContext; 133 134 private static volatile boolean sSystemReady = false; 135 136 137 private static final int FIRST_START_FATAL_ERROR_CODE = -100; 138 private static final int LAST_START_FATAL_ERROR_CODE = -1; 139 private static final int FIRST_START_SUCCESS_CODE = 0; 140 private static final int LAST_START_SUCCESS_CODE = 99; 141 private static final int FIRST_START_NON_FATAL_ERROR_CODE = 100; 142 private static final int LAST_START_NON_FATAL_ERROR_CODE = 199; 143 144 static final class UidObserver extends IUidObserver.Stub { 145 final OnUidImportanceListener mListener; 146 final Context mContext; 147 148 UidObserver(OnUidImportanceListener listener, Context clientContext) { 149 mListener = listener; 150 mContext = clientContext; 151 } 152 153 @Override 154 public void onUidStateChanged(int uid, int procState, long procStateSeq) { 155 mListener.onUidImportance(uid, RunningAppProcessInfo.procStateToImportanceForClient( 156 procState, mContext)); 157 } 158 159 @Override 160 public void onUidGone(int uid, boolean disabled) { 161 mListener.onUidImportance(uid, RunningAppProcessInfo.IMPORTANCE_GONE); 162 } 163 164 @Override 165 public void onUidActive(int uid) { 166 } 167 168 @Override 169 public void onUidIdle(int uid, boolean disabled) { 170 } 171 172 @Override public void onUidCachedChanged(int uid, boolean cached) { 173 } 174 } 175 176 final ArrayMap<OnUidImportanceListener, UidObserver> mImportanceListeners = new ArrayMap<>(); 177 178 /** 179 * Defines acceptable types of bugreports. 180 * @hide 181 */ 182 @Retention(RetentionPolicy.SOURCE) 183 @IntDef({ 184 BUGREPORT_OPTION_FULL, 185 BUGREPORT_OPTION_INTERACTIVE, 186 BUGREPORT_OPTION_REMOTE, 187 BUGREPORT_OPTION_WEAR, 188 BUGREPORT_OPTION_TELEPHONY 189 }) 190 public @interface BugreportMode {} 191 /** 192 * Takes a bugreport without user interference (and hence causing less 193 * interference to the system), but includes all sections. 194 * @hide 195 */ 196 public static final int BUGREPORT_OPTION_FULL = 0; 197 /** 198 * Allows user to monitor progress and enter additional data; might not include all 199 * sections. 200 * @hide 201 */ 202 public static final int BUGREPORT_OPTION_INTERACTIVE = 1; 203 /** 204 * Takes a bugreport requested remotely by administrator of the Device Owner app, 205 * not the device's user. 206 * @hide 207 */ 208 public static final int BUGREPORT_OPTION_REMOTE = 2; 209 /** 210 * Takes a bugreport on a wearable device. 211 * @hide 212 */ 213 public static final int BUGREPORT_OPTION_WEAR = 3; 214 215 /** 216 * Takes a lightweight version of bugreport that only includes a few, urgent sections 217 * used to report telephony bugs. 218 * @hide 219 */ 220 public static final int BUGREPORT_OPTION_TELEPHONY = 4; 221 222 /** 223 * <a href="{@docRoot}guide/topics/manifest/meta-data-element.html">{@code 224 * <meta-data>}</a> name for a 'home' Activity that declares a package that is to be 225 * uninstalled in lieu of the declaring one. The package named here must be 226 * signed with the same certificate as the one declaring the {@code <meta-data>}. 227 */ 228 public static final String META_HOME_ALTERNATE = "android.app.home.alternate"; 229 230 // NOTE: Before adding a new start result, please reference the defined ranges to ensure the 231 // result is properly categorized. 232 233 /** 234 * Result for IActivityManager.startVoiceActivity: active session is currently hidden. 235 * @hide 236 */ 237 public static final int START_VOICE_HIDDEN_SESSION = FIRST_START_FATAL_ERROR_CODE; 238 239 /** 240 * Result for IActivityManager.startVoiceActivity: active session does not match 241 * the requesting token. 242 * @hide 243 */ 244 public static final int START_VOICE_NOT_ACTIVE_SESSION = FIRST_START_FATAL_ERROR_CODE + 1; 245 246 /** 247 * Result for IActivityManager.startActivity: trying to start a background user 248 * activity that shouldn't be displayed for all users. 249 * @hide 250 */ 251 public static final int START_NOT_CURRENT_USER_ACTIVITY = FIRST_START_FATAL_ERROR_CODE + 2; 252 253 /** 254 * Result for IActivityManager.startActivity: trying to start an activity under voice 255 * control when that activity does not support the VOICE category. 256 * @hide 257 */ 258 public static final int START_NOT_VOICE_COMPATIBLE = FIRST_START_FATAL_ERROR_CODE + 3; 259 260 /** 261 * Result for IActivityManager.startActivity: an error where the 262 * start had to be canceled. 263 * @hide 264 */ 265 public static final int START_CANCELED = FIRST_START_FATAL_ERROR_CODE + 4; 266 267 /** 268 * Result for IActivityManager.startActivity: an error where the 269 * thing being started is not an activity. 270 * @hide 271 */ 272 public static final int START_NOT_ACTIVITY = FIRST_START_FATAL_ERROR_CODE + 5; 273 274 /** 275 * Result for IActivityManager.startActivity: an error where the 276 * caller does not have permission to start the activity. 277 * @hide 278 */ 279 public static final int START_PERMISSION_DENIED = FIRST_START_FATAL_ERROR_CODE + 6; 280 281 /** 282 * Result for IActivityManager.startActivity: an error where the 283 * caller has requested both to forward a result and to receive 284 * a result. 285 * @hide 286 */ 287 public static final int START_FORWARD_AND_REQUEST_CONFLICT = FIRST_START_FATAL_ERROR_CODE + 7; 288 289 /** 290 * Result for IActivityManager.startActivity: an error where the 291 * requested class is not found. 292 * @hide 293 */ 294 public static final int START_CLASS_NOT_FOUND = FIRST_START_FATAL_ERROR_CODE + 8; 295 296 /** 297 * Result for IActivityManager.startActivity: an error where the 298 * given Intent could not be resolved to an activity. 299 * @hide 300 */ 301 public static final int START_INTENT_NOT_RESOLVED = FIRST_START_FATAL_ERROR_CODE + 9; 302 303 /** 304 * Result for IActivityManager.startAssistantActivity: active session is currently hidden. 305 * @hide 306 */ 307 public static final int START_ASSISTANT_HIDDEN_SESSION = FIRST_START_FATAL_ERROR_CODE + 10; 308 309 /** 310 * Result for IActivityManager.startAssistantActivity: active session does not match 311 * the requesting token. 312 * @hide 313 */ 314 public static final int START_ASSISTANT_NOT_ACTIVE_SESSION = FIRST_START_FATAL_ERROR_CODE + 11; 315 316 /** 317 * Result for IActivityManaqer.startActivity: the activity was started 318 * successfully as normal. 319 * @hide 320 */ 321 public static final int START_SUCCESS = FIRST_START_SUCCESS_CODE; 322 323 /** 324 * Result for IActivityManaqer.startActivity: the caller asked that the Intent not 325 * be executed if it is the recipient, and that is indeed the case. 326 * @hide 327 */ 328 public static final int START_RETURN_INTENT_TO_CALLER = FIRST_START_SUCCESS_CODE + 1; 329 330 /** 331 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 332 * a task was simply brought to the foreground. 333 * @hide 334 */ 335 public static final int START_TASK_TO_FRONT = FIRST_START_SUCCESS_CODE + 2; 336 337 /** 338 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 339 * the given Intent was given to the existing top activity. 340 * @hide 341 */ 342 public static final int START_DELIVERED_TO_TOP = FIRST_START_SUCCESS_CODE + 3; 343 344 /** 345 * Result for IActivityManaqer.startActivity: request was canceled because 346 * app switches are temporarily canceled to ensure the user's last request 347 * (such as pressing home) is performed. 348 * @hide 349 */ 350 public static final int START_SWITCHES_CANCELED = FIRST_START_NON_FATAL_ERROR_CODE; 351 352 /** 353 * Result for IActivityManaqer.startActivity: a new activity was attempted to be started 354 * while in Lock Task Mode. 355 * @hide 356 */ 357 public static final int START_RETURN_LOCK_TASK_MODE_VIOLATION = 358 FIRST_START_NON_FATAL_ERROR_CODE + 1; 359 360 /** 361 * Result for IActivityManaqer.startActivity: a new activity start was aborted. Never returned 362 * externally. 363 * @hide 364 */ 365 public static final int START_ABORTED = FIRST_START_NON_FATAL_ERROR_CODE + 2; 366 367 /** 368 * Flag for IActivityManaqer.startActivity: do special start mode where 369 * a new activity is launched only if it is needed. 370 * @hide 371 */ 372 public static final int START_FLAG_ONLY_IF_NEEDED = 1<<0; 373 374 /** 375 * Flag for IActivityManaqer.startActivity: launch the app for 376 * debugging. 377 * @hide 378 */ 379 public static final int START_FLAG_DEBUG = 1<<1; 380 381 /** 382 * Flag for IActivityManaqer.startActivity: launch the app for 383 * allocation tracking. 384 * @hide 385 */ 386 public static final int START_FLAG_TRACK_ALLOCATION = 1<<2; 387 388 /** 389 * Flag for IActivityManaqer.startActivity: launch the app with 390 * native debugging support. 391 * @hide 392 */ 393 public static final int START_FLAG_NATIVE_DEBUGGING = 1<<3; 394 395 /** 396 * Result for IActivityManaqer.broadcastIntent: success! 397 * @hide 398 */ 399 public static final int BROADCAST_SUCCESS = 0; 400 401 /** 402 * Result for IActivityManaqer.broadcastIntent: attempt to broadcast 403 * a sticky intent without appropriate permission. 404 * @hide 405 */ 406 public static final int BROADCAST_STICKY_CANT_HAVE_PERMISSION = -1; 407 408 /** 409 * Result for IActivityManager.broadcastIntent: trying to send a broadcast 410 * to a stopped user. Fail. 411 * @hide 412 */ 413 public static final int BROADCAST_FAILED_USER_STOPPED = -2; 414 415 /** 416 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 417 * for a sendBroadcast operation. 418 * @hide 419 */ 420 public static final int INTENT_SENDER_BROADCAST = 1; 421 422 /** 423 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 424 * for a startActivity operation. 425 * @hide 426 */ 427 public static final int INTENT_SENDER_ACTIVITY = 2; 428 429 /** 430 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 431 * for an activity result operation. 432 * @hide 433 */ 434 public static final int INTENT_SENDER_ACTIVITY_RESULT = 3; 435 436 /** 437 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 438 * for a startService operation. 439 * @hide 440 */ 441 public static final int INTENT_SENDER_SERVICE = 4; 442 443 /** 444 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 445 * for a startForegroundService operation. 446 * @hide 447 */ 448 public static final int INTENT_SENDER_FOREGROUND_SERVICE = 5; 449 450 /** @hide User operation call: success! */ 451 public static final int USER_OP_SUCCESS = 0; 452 453 /** @hide User operation call: given user id is not known. */ 454 public static final int USER_OP_UNKNOWN_USER = -1; 455 456 /** @hide User operation call: given user id is the current user, can't be stopped. */ 457 public static final int USER_OP_IS_CURRENT = -2; 458 459 /** @hide User operation call: system user can't be stopped. */ 460 public static final int USER_OP_ERROR_IS_SYSTEM = -3; 461 462 /** @hide User operation call: one of related users cannot be stopped. */ 463 public static final int USER_OP_ERROR_RELATED_USERS_CANNOT_STOP = -4; 464 465 /** @hide Not a real process state. */ 466 public static final int PROCESS_STATE_UNKNOWN = -1; 467 468 /** @hide Process is a persistent system process. */ 469 public static final int PROCESS_STATE_PERSISTENT = 0; 470 471 /** @hide Process is a persistent system process and is doing UI. */ 472 public static final int PROCESS_STATE_PERSISTENT_UI = 1; 473 474 /** @hide Process is hosting the current top activities. Note that this covers 475 * all activities that are visible to the user. */ 476 public static final int PROCESS_STATE_TOP = 2; 477 478 /** @hide Process is hosting a foreground service due to a system binding. */ 479 public static final int PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 3; 480 481 /** @hide Process is hosting a foreground service. */ 482 public static final int PROCESS_STATE_FOREGROUND_SERVICE = 4; 483 484 /** @hide Same as {@link #PROCESS_STATE_TOP} but while device is sleeping. */ 485 public static final int PROCESS_STATE_TOP_SLEEPING = 5; 486 487 /** @hide Process is important to the user, and something they are aware of. */ 488 public static final int PROCESS_STATE_IMPORTANT_FOREGROUND = 6; 489 490 /** @hide Process is important to the user, but not something they are aware of. */ 491 public static final int PROCESS_STATE_IMPORTANT_BACKGROUND = 7; 492 493 /** @hide Process is in the background transient so we will try to keep running. */ 494 public static final int PROCESS_STATE_TRANSIENT_BACKGROUND = 8; 495 496 /** @hide Process is in the background running a backup/restore operation. */ 497 public static final int PROCESS_STATE_BACKUP = 9; 498 499 /** @hide Process is in the background, but it can't restore its state so we want 500 * to try to avoid killing it. */ 501 public static final int PROCESS_STATE_HEAVY_WEIGHT = 10; 502 503 /** @hide Process is in the background running a service. Unlike oom_adj, this level 504 * is used for both the normal running in background state and the executing 505 * operations state. */ 506 public static final int PROCESS_STATE_SERVICE = 11; 507 508 /** @hide Process is in the background running a receiver. Note that from the 509 * perspective of oom_adj receivers run at a higher foreground level, but for our 510 * prioritization here that is not necessary and putting them below services means 511 * many fewer changes in some process states as they receive broadcasts. */ 512 public static final int PROCESS_STATE_RECEIVER = 12; 513 514 /** @hide Process is in the background but hosts the home activity. */ 515 public static final int PROCESS_STATE_HOME = 13; 516 517 /** @hide Process is in the background but hosts the last shown activity. */ 518 public static final int PROCESS_STATE_LAST_ACTIVITY = 14; 519 520 /** @hide Process is being cached for later use and contains activities. */ 521 public static final int PROCESS_STATE_CACHED_ACTIVITY = 15; 522 523 /** @hide Process is being cached for later use and is a client of another cached 524 * process that contains activities. */ 525 public static final int PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 16; 526 527 /** @hide Process is being cached for later use and is empty. */ 528 public static final int PROCESS_STATE_CACHED_EMPTY = 17; 529 530 /** @hide Process does not exist. */ 531 public static final int PROCESS_STATE_NONEXISTENT = 18; 532 533 /** @hide The lowest process state number */ 534 public static final int MIN_PROCESS_STATE = PROCESS_STATE_PERSISTENT; 535 536 /** @hide The highest process state number */ 537 public static final int MAX_PROCESS_STATE = PROCESS_STATE_NONEXISTENT; 538 539 /** @hide Should this process state be considered a background state? */ 540 public static final boolean isProcStateBackground(int procState) { 541 return procState >= PROCESS_STATE_TRANSIENT_BACKGROUND; 542 } 543 544 /** @hide requestType for assist context: only basic information. */ 545 public static final int ASSIST_CONTEXT_BASIC = 0; 546 547 /** @hide requestType for assist context: generate full AssistStructure. */ 548 public static final int ASSIST_CONTEXT_FULL = 1; 549 550 /** @hide requestType for assist context: generate full AssistStructure for autofill. */ 551 public static final int ASSIST_CONTEXT_AUTOFILL = 2; 552 553 /** @hide Flag for registerUidObserver: report changes in process state. */ 554 public static final int UID_OBSERVER_PROCSTATE = 1<<0; 555 556 /** @hide Flag for registerUidObserver: report uid gone. */ 557 public static final int UID_OBSERVER_GONE = 1<<1; 558 559 /** @hide Flag for registerUidObserver: report uid has become idle. */ 560 public static final int UID_OBSERVER_IDLE = 1<<2; 561 562 /** @hide Flag for registerUidObserver: report uid has become active. */ 563 public static final int UID_OBSERVER_ACTIVE = 1<<3; 564 565 /** @hide Flag for registerUidObserver: report uid cached state has changed. */ 566 public static final int UID_OBSERVER_CACHED = 1<<4; 567 568 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: normal free-to-run operation. */ 569 public static final int APP_START_MODE_NORMAL = 0; 570 571 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later. */ 572 public static final int APP_START_MODE_DELAYED = 1; 573 574 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later, with 575 * rigid errors (throwing exception). */ 576 public static final int APP_START_MODE_DELAYED_RIGID = 2; 577 578 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: disable/cancel pending 579 * launches; this is the mode for ephemeral apps. */ 580 public static final int APP_START_MODE_DISABLED = 3; 581 582 /** 583 * Lock task mode is not active. 584 */ 585 public static final int LOCK_TASK_MODE_NONE = 0; 586 587 /** 588 * Full lock task mode is active. 589 */ 590 public static final int LOCK_TASK_MODE_LOCKED = 1; 591 592 /** 593 * App pinning mode is active. 594 */ 595 public static final int LOCK_TASK_MODE_PINNED = 2; 596 597 Point mAppTaskThumbnailSize; 598 599 /*package*/ ActivityManager(Context context, Handler handler) { 600 mContext = context; 601 } 602 603 /** 604 * Returns whether the launch was successful. 605 * @hide 606 */ 607 public static final boolean isStartResultSuccessful(int result) { 608 return FIRST_START_SUCCESS_CODE <= result && result <= LAST_START_SUCCESS_CODE; 609 } 610 611 /** 612 * Returns whether the launch result was a fatal error. 613 * @hide 614 */ 615 public static final boolean isStartResultFatalError(int result) { 616 return FIRST_START_FATAL_ERROR_CODE <= result && result <= LAST_START_FATAL_ERROR_CODE; 617 } 618 619 /** 620 * Screen compatibility mode: the application most always run in 621 * compatibility mode. 622 * @hide 623 */ 624 public static final int COMPAT_MODE_ALWAYS = -1; 625 626 /** 627 * Screen compatibility mode: the application can never run in 628 * compatibility mode. 629 * @hide 630 */ 631 public static final int COMPAT_MODE_NEVER = -2; 632 633 /** 634 * Screen compatibility mode: unknown. 635 * @hide 636 */ 637 public static final int COMPAT_MODE_UNKNOWN = -3; 638 639 /** 640 * Screen compatibility mode: the application currently has compatibility 641 * mode disabled. 642 * @hide 643 */ 644 public static final int COMPAT_MODE_DISABLED = 0; 645 646 /** 647 * Screen compatibility mode: the application currently has compatibility 648 * mode enabled. 649 * @hide 650 */ 651 public static final int COMPAT_MODE_ENABLED = 1; 652 653 /** 654 * Screen compatibility mode: request to toggle the application's 655 * compatibility mode. 656 * @hide 657 */ 658 public static final int COMPAT_MODE_TOGGLE = 2; 659 660 private static final boolean DEVELOPMENT_FORCE_LOW_RAM = 661 SystemProperties.getBoolean("debug.force_low_ram", false); 662 663 /** @hide */ 664 public static class StackId { 665 /** Invalid stack ID. */ 666 public static final int INVALID_STACK_ID = -1; 667 668 /** First static stack ID. */ 669 public static final int FIRST_STATIC_STACK_ID = 0; 670 671 /** Home activity stack ID. */ 672 public static final int HOME_STACK_ID = FIRST_STATIC_STACK_ID; 673 674 /** ID of stack where fullscreen activities are normally launched into. */ 675 public static final int FULLSCREEN_WORKSPACE_STACK_ID = 1; 676 677 /** ID of stack where freeform/resized activities are normally launched into. */ 678 public static final int FREEFORM_WORKSPACE_STACK_ID = FULLSCREEN_WORKSPACE_STACK_ID + 1; 679 680 /** ID of stack that occupies a dedicated region of the screen. */ 681 public static final int DOCKED_STACK_ID = FREEFORM_WORKSPACE_STACK_ID + 1; 682 683 /** ID of stack that always on top (always visible) when it exist. */ 684 public static final int PINNED_STACK_ID = DOCKED_STACK_ID + 1; 685 686 /** ID of stack that contains the Recents activity. */ 687 public static final int RECENTS_STACK_ID = PINNED_STACK_ID + 1; 688 689 /** ID of stack that contains activities launched by the assistant. */ 690 public static final int ASSISTANT_STACK_ID = RECENTS_STACK_ID + 1; 691 692 /** Last static stack stack ID. */ 693 public static final int LAST_STATIC_STACK_ID = ASSISTANT_STACK_ID; 694 695 /** Start of ID range used by stacks that are created dynamically. */ 696 public static final int FIRST_DYNAMIC_STACK_ID = LAST_STATIC_STACK_ID + 1; 697 698 // TODO: Figure-out a way to remove this. 699 public static boolean isStaticStack(int stackId) { 700 return stackId >= FIRST_STATIC_STACK_ID && stackId <= LAST_STATIC_STACK_ID; 701 } 702 703 // TODO: It seems this mostly means a stack on a secondary display now. Need to see if 704 // there are other meanings. If not why not just use information from the display? 705 public static boolean isDynamicStack(int stackId) { 706 return stackId >= FIRST_DYNAMIC_STACK_ID; 707 } 708 709 /** 710 * Returns true if dynamic stacks are allowed to be visible behind the input stack. 711 */ 712 // TODO: Figure-out a way to remove. 713 public static boolean isDynamicStacksVisibleBehindAllowed(int stackId) { 714 return stackId == PINNED_STACK_ID || stackId == ASSISTANT_STACK_ID; 715 } 716 717 /** 718 * Returns true if we try to maintain focus in the current stack when the top activity 719 * finishes. 720 */ 721 // TODO: Figure-out a way to remove. Probably isn't needed in the new world... 722 public static boolean keepFocusInStackIfPossible(int stackId) { 723 return stackId == FREEFORM_WORKSPACE_STACK_ID 724 || stackId == DOCKED_STACK_ID || stackId == PINNED_STACK_ID; 725 } 726 727 /** 728 * Returns true if Stack size is affected by the docked stack changing size. 729 */ 730 // TODO: Figure-out a way to remove. 731 public static boolean isResizeableByDockedStack(int stackId) { 732 return isStaticStack(stackId) && stackId != DOCKED_STACK_ID 733 && stackId != PINNED_STACK_ID && stackId != ASSISTANT_STACK_ID; 734 } 735 736 /** 737 * Returns true if the size of tasks in the input stack are affected by the docked stack 738 * changing size. 739 */ 740 // TODO: What is the difference between this method and the one above?? 741 public static boolean isTaskResizeableByDockedStack(int stackId) { 742 return isStaticStack(stackId) && stackId != FREEFORM_WORKSPACE_STACK_ID 743 && stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID 744 && stackId != ASSISTANT_STACK_ID; 745 } 746 747 /** 748 * Returns true if the input stack is affected by drag resizing. 749 */ 750 public static boolean isStackAffectedByDragResizing(int stackId) { 751 return isStaticStack(stackId) && stackId != PINNED_STACK_ID 752 && stackId != ASSISTANT_STACK_ID; 753 } 754 755 /** 756 * Returns true if the windows of tasks being moved to the target stack from the source 757 * stack should be replaced, meaning that window manager will keep the old window around 758 * until the new is ready. 759 */ 760 public static boolean replaceWindowsOnTaskMove(int sourceStackId, int targetStackId) { 761 return sourceStackId == FREEFORM_WORKSPACE_STACK_ID 762 || targetStackId == FREEFORM_WORKSPACE_STACK_ID; 763 } 764 765 /** 766 * Return whether a stackId is a stack that be a backdrop to a translucent activity. These 767 * are generally fullscreen stacks. 768 */ 769 public static boolean isBackdropToTranslucentActivity(int stackId) { 770 return stackId == FULLSCREEN_WORKSPACE_STACK_ID 771 || stackId == ASSISTANT_STACK_ID; 772 } 773 774 /** 775 * Returns true if animation specs should be constructed for app transition that moves 776 * the task to the specified stack. 777 */ 778 public static boolean useAnimationSpecForAppTransition(int stackId) { 779 // TODO: INVALID_STACK_ID is also animated because we don't persist stack id's across 780 // reboots. 781 return stackId == FREEFORM_WORKSPACE_STACK_ID 782 || stackId == FULLSCREEN_WORKSPACE_STACK_ID 783 || stackId == ASSISTANT_STACK_ID 784 || stackId == DOCKED_STACK_ID 785 || stackId == INVALID_STACK_ID; 786 } 787 788 /** 789 * Returns true if activities from stasks in the given {@param stackId} are allowed to 790 * enter picture-in-picture. 791 */ 792 public static boolean isAllowedToEnterPictureInPicture(int stackId) { 793 return stackId != HOME_STACK_ID && stackId != ASSISTANT_STACK_ID && 794 stackId != RECENTS_STACK_ID; 795 } 796 797 /** 798 * Returns true if the top task in the task is allowed to return home when finished and 799 * there are other tasks in the stack. 800 */ 801 public static boolean allowTopTaskToReturnHome(int stackId) { 802 return stackId != PINNED_STACK_ID; 803 } 804 805 /** 806 * Returns true if the stack should be resized to match the bounds specified by 807 * {@link ActivityOptions#setLaunchBounds} when launching an activity into the stack. 808 */ 809 public static boolean resizeStackWithLaunchBounds(int stackId) { 810 return stackId == PINNED_STACK_ID; 811 } 812 813 /** 814 * Returns true if a window from the specified stack with {@param stackId} are normally 815 * fullscreen, i. e. they can become the top opaque fullscreen window, meaning that it 816 * controls system bars, lockscreen occluded/dismissing state, screen rotation animation, 817 * etc. 818 */ 819 // TODO: What about the other side of docked stack if we move this to WindowConfiguration? 820 public static boolean normallyFullscreenWindows(int stackId) { 821 return stackId != PINNED_STACK_ID && stackId != FREEFORM_WORKSPACE_STACK_ID 822 && stackId != DOCKED_STACK_ID; 823 } 824 825 /** 826 * Returns true if the input stack id should only be present on a device that supports 827 * multi-window mode. 828 * @see android.app.ActivityManager#supportsMultiWindow 829 */ 830 // TODO: What about the other side of docked stack if we move this to WindowConfiguration? 831 public static boolean isMultiWindowStack(int stackId) { 832 return stackId == PINNED_STACK_ID || stackId == FREEFORM_WORKSPACE_STACK_ID 833 || stackId == DOCKED_STACK_ID; 834 } 835 836 /** 837 * Returns true if the input {@param stackId} is HOME_STACK_ID or RECENTS_STACK_ID 838 */ 839 public static boolean isHomeOrRecentsStack(int stackId) { 840 return stackId == HOME_STACK_ID || stackId == RECENTS_STACK_ID; 841 } 842 843 /** Returns true if the input stack and its content can affect the device orientation. */ 844 public static boolean canSpecifyOrientation(int stackId) { 845 return stackId == HOME_STACK_ID 846 || stackId == RECENTS_STACK_ID 847 || stackId == FULLSCREEN_WORKSPACE_STACK_ID 848 || stackId == ASSISTANT_STACK_ID 849 || isDynamicStack(stackId); 850 } 851 852 /** Returns the windowing mode that should be used for this input stack id. */ 853 // TODO: To be removed once we are not using stack id for stuff... 854 public static int getWindowingModeForStackId(int stackId) { 855 final int windowingMode; 856 switch (stackId) { 857 case FULLSCREEN_WORKSPACE_STACK_ID: 858 case HOME_STACK_ID: 859 case RECENTS_STACK_ID: 860 case ASSISTANT_STACK_ID: 861 windowingMode = WINDOWING_MODE_FULLSCREEN; 862 break; 863 case PINNED_STACK_ID: 864 windowingMode = WINDOWING_MODE_PINNED; 865 break; 866 case DOCKED_STACK_ID: 867 windowingMode = WINDOWING_MODE_DOCKED; 868 break; 869 case FREEFORM_WORKSPACE_STACK_ID: 870 windowingMode = WINDOWING_MODE_FREEFORM; 871 break; 872 default : 873 windowingMode = WINDOWING_MODE_UNDEFINED; 874 } 875 return windowingMode; 876 } 877 } 878 879 /** 880 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 881 * specifies the position of the created docked stack at the top half of the screen if 882 * in portrait mode or at the left half of the screen if in landscape mode. 883 * @hide 884 */ 885 public static final int DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT = 0; 886 887 /** 888 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 889 * specifies the position of the created docked stack at the bottom half of the screen if 890 * in portrait mode or at the right half of the screen if in landscape mode. 891 * @hide 892 */ 893 public static final int DOCKED_STACK_CREATE_MODE_BOTTOM_OR_RIGHT = 1; 894 895 /** 896 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 897 * that the resize doesn't need to preserve the window, and can be skipped if bounds 898 * is unchanged. This mode is used by window manager in most cases. 899 * @hide 900 */ 901 public static final int RESIZE_MODE_SYSTEM = 0; 902 903 /** 904 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 905 * that the resize should preserve the window if possible. 906 * @hide 907 */ 908 public static final int RESIZE_MODE_PRESERVE_WINDOW = (0x1 << 0); 909 910 /** 911 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 912 * that the resize should be performed even if the bounds appears unchanged. 913 * @hide 914 */ 915 public static final int RESIZE_MODE_FORCED = (0x1 << 1); 916 917 /** 918 * Input parameter to {@link android.app.IActivityManager#resizeTask} used by window 919 * manager during a screen rotation. 920 * @hide 921 */ 922 public static final int RESIZE_MODE_SYSTEM_SCREEN_ROTATION = RESIZE_MODE_PRESERVE_WINDOW; 923 924 /** 925 * Input parameter to {@link android.app.IActivityManager#resizeTask} used when the 926 * resize is due to a drag action. 927 * @hide 928 */ 929 public static final int RESIZE_MODE_USER = RESIZE_MODE_PRESERVE_WINDOW; 930 931 /** 932 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 933 * that the resize should preserve the window if possible, and should not be skipped 934 * even if the bounds is unchanged. Usually used to force a resizing when a drag action 935 * is ending. 936 * @hide 937 */ 938 public static final int RESIZE_MODE_USER_FORCED = 939 RESIZE_MODE_PRESERVE_WINDOW | RESIZE_MODE_FORCED; 940 941 /** @hide */ 942 public int getFrontActivityScreenCompatMode() { 943 try { 944 return getService().getFrontActivityScreenCompatMode(); 945 } catch (RemoteException e) { 946 throw e.rethrowFromSystemServer(); 947 } 948 } 949 950 /** @hide */ 951 public void setFrontActivityScreenCompatMode(int mode) { 952 try { 953 getService().setFrontActivityScreenCompatMode(mode); 954 } catch (RemoteException e) { 955 throw e.rethrowFromSystemServer(); 956 } 957 } 958 959 /** @hide */ 960 public int getPackageScreenCompatMode(String packageName) { 961 try { 962 return getService().getPackageScreenCompatMode(packageName); 963 } catch (RemoteException e) { 964 throw e.rethrowFromSystemServer(); 965 } 966 } 967 968 /** @hide */ 969 public void setPackageScreenCompatMode(String packageName, int mode) { 970 try { 971 getService().setPackageScreenCompatMode(packageName, mode); 972 } catch (RemoteException e) { 973 throw e.rethrowFromSystemServer(); 974 } 975 } 976 977 /** @hide */ 978 public boolean getPackageAskScreenCompat(String packageName) { 979 try { 980 return getService().getPackageAskScreenCompat(packageName); 981 } catch (RemoteException e) { 982 throw e.rethrowFromSystemServer(); 983 } 984 } 985 986 /** @hide */ 987 public void setPackageAskScreenCompat(String packageName, boolean ask) { 988 try { 989 getService().setPackageAskScreenCompat(packageName, ask); 990 } catch (RemoteException e) { 991 throw e.rethrowFromSystemServer(); 992 } 993 } 994 995 /** 996 * Return the approximate per-application memory class of the current 997 * device. This gives you an idea of how hard a memory limit you should 998 * impose on your application to let the overall system work best. The 999 * returned value is in megabytes; the baseline Android memory class is 1000 * 16 (which happens to be the Java heap limit of those devices); some 1001 * device with more memory may return 24 or even higher numbers. 1002 */ 1003 public int getMemoryClass() { 1004 return staticGetMemoryClass(); 1005 } 1006 1007 /** @hide */ 1008 static public int staticGetMemoryClass() { 1009 // Really brain dead right now -- just take this from the configured 1010 // vm heap size, and assume it is in megabytes and thus ends with "m". 1011 String vmHeapSize = SystemProperties.get("dalvik.vm.heapgrowthlimit", ""); 1012 if (vmHeapSize != null && !"".equals(vmHeapSize)) { 1013 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1)); 1014 } 1015 return staticGetLargeMemoryClass(); 1016 } 1017 1018 /** 1019 * Return the approximate per-application memory class of the current 1020 * device when an application is running with a large heap. This is the 1021 * space available for memory-intensive applications; most applications 1022 * should not need this amount of memory, and should instead stay with the 1023 * {@link #getMemoryClass()} limit. The returned value is in megabytes. 1024 * This may be the same size as {@link #getMemoryClass()} on memory 1025 * constrained devices, or it may be significantly larger on devices with 1026 * a large amount of available RAM. 1027 * 1028 * <p>The is the size of the application's Dalvik heap if it has 1029 * specified <code>android:largeHeap="true"</code> in its manifest. 1030 */ 1031 public int getLargeMemoryClass() { 1032 return staticGetLargeMemoryClass(); 1033 } 1034 1035 /** @hide */ 1036 static public int staticGetLargeMemoryClass() { 1037 // Really brain dead right now -- just take this from the configured 1038 // vm heap size, and assume it is in megabytes and thus ends with "m". 1039 String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m"); 1040 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1)); 1041 } 1042 1043 /** 1044 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 1045 * is ultimately up to the device configuration, but currently it generally means 1046 * something in the class of a 512MB device with about a 800x480 or less screen. 1047 * This is mostly intended to be used by apps to determine whether they should turn 1048 * off certain features that require more RAM. 1049 */ 1050 public boolean isLowRamDevice() { 1051 return isLowRamDeviceStatic(); 1052 } 1053 1054 /** @hide */ 1055 public static boolean isLowRamDeviceStatic() { 1056 return RoSystemProperties.CONFIG_LOW_RAM || 1057 (Build.IS_DEBUGGABLE && DEVELOPMENT_FORCE_LOW_RAM); 1058 } 1059 1060 /** 1061 * Returns true if this is a small battery device. Exactly whether a device is considered to be 1062 * small battery is ultimately up to the device configuration, but currently it generally means 1063 * something in the class of a device with 1000 mAh or less. This is mostly intended to be used 1064 * to determine whether certain features should be altered to account for a drastically smaller 1065 * battery. 1066 * @hide 1067 */ 1068 public static boolean isSmallBatteryDevice() { 1069 return RoSystemProperties.CONFIG_SMALL_BATTERY; 1070 } 1071 1072 /** 1073 * Used by persistent processes to determine if they are running on a 1074 * higher-end device so should be okay using hardware drawing acceleration 1075 * (which tends to consume a lot more RAM). 1076 * @hide 1077 */ 1078 static public boolean isHighEndGfx() { 1079 return !isLowRamDeviceStatic() && 1080 !Resources.getSystem().getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 1081 } 1082 1083 /** 1084 * Return the maximum number of recents entries that we will maintain and show. 1085 * @hide 1086 */ 1087 static public int getMaxRecentTasksStatic() { 1088 if (gMaxRecentTasks < 0) { 1089 return gMaxRecentTasks = isLowRamDeviceStatic() ? 36 : 48; 1090 } 1091 return gMaxRecentTasks; 1092 } 1093 1094 /** 1095 * Return the default limit on the number of recents that an app can make. 1096 * @hide 1097 */ 1098 static public int getDefaultAppRecentsLimitStatic() { 1099 return getMaxRecentTasksStatic() / 6; 1100 } 1101 1102 /** 1103 * Return the maximum limit on the number of recents that an app can make. 1104 * @hide 1105 */ 1106 static public int getMaxAppRecentsLimitStatic() { 1107 return getMaxRecentTasksStatic() / 2; 1108 } 1109 1110 /** 1111 * Returns true if the system supports at least one form of multi-window. 1112 * E.g. freeform, split-screen, picture-in-picture. 1113 * @hide 1114 */ 1115 static public boolean supportsMultiWindow(Context context) { 1116 // On watches, multi-window is used to present essential system UI, and thus it must be 1117 // supported regardless of device memory characteristics. 1118 boolean isWatch = context.getPackageManager().hasSystemFeature( 1119 PackageManager.FEATURE_WATCH); 1120 return (!isLowRamDeviceStatic() || isWatch) 1121 && Resources.getSystem().getBoolean( 1122 com.android.internal.R.bool.config_supportsMultiWindow); 1123 } 1124 1125 /** 1126 * Returns true if the system supports split screen multi-window. 1127 * @hide 1128 */ 1129 static public boolean supportsSplitScreenMultiWindow(Context context) { 1130 return supportsMultiWindow(context) 1131 && Resources.getSystem().getBoolean( 1132 com.android.internal.R.bool.config_supportsSplitScreenMultiWindow); 1133 } 1134 1135 /** @removed */ 1136 @Deprecated 1137 public static int getMaxNumPictureInPictureActions() { 1138 return 3; 1139 } 1140 1141 /** 1142 * Information you can set and retrieve about the current activity within the recent task list. 1143 */ 1144 public static class TaskDescription implements Parcelable { 1145 /** @hide */ 1146 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 1147 private static final String ATTR_TASKDESCRIPTIONLABEL = 1148 ATTR_TASKDESCRIPTION_PREFIX + "label"; 1149 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 1150 ATTR_TASKDESCRIPTION_PREFIX + "color"; 1151 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 1152 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 1153 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 1154 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 1155 1156 private String mLabel; 1157 private Bitmap mIcon; 1158 private String mIconFilename; 1159 private int mColorPrimary; 1160 private int mColorBackground; 1161 private int mStatusBarColor; 1162 private int mNavigationBarColor; 1163 1164 /** 1165 * Creates the TaskDescription to the specified values. 1166 * 1167 * @param label A label and description of the current state of this task. 1168 * @param icon An icon that represents the current state of this task. 1169 * @param colorPrimary A color to override the theme's primary color. This color must be 1170 * opaque. 1171 */ 1172 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 1173 this(label, icon, null, colorPrimary, 0, 0, 0); 1174 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1175 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1176 } 1177 } 1178 1179 /** 1180 * Creates the TaskDescription to the specified values. 1181 * 1182 * @param label A label and description of the current state of this activity. 1183 * @param icon An icon that represents the current state of this activity. 1184 */ 1185 public TaskDescription(String label, Bitmap icon) { 1186 this(label, icon, null, 0, 0, 0, 0); 1187 } 1188 1189 /** 1190 * Creates the TaskDescription to the specified values. 1191 * 1192 * @param label A label and description of the current state of this activity. 1193 */ 1194 public TaskDescription(String label) { 1195 this(label, null, null, 0, 0, 0, 0); 1196 } 1197 1198 /** 1199 * Creates an empty TaskDescription. 1200 */ 1201 public TaskDescription() { 1202 this(null, null, null, 0, 0, 0, 0); 1203 } 1204 1205 /** @hide */ 1206 public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary, 1207 int colorBackground, int statusBarColor, int navigationBarColor) { 1208 mLabel = label; 1209 mIcon = icon; 1210 mIconFilename = iconFilename; 1211 mColorPrimary = colorPrimary; 1212 mColorBackground = colorBackground; 1213 mStatusBarColor = statusBarColor; 1214 mNavigationBarColor = navigationBarColor; 1215 } 1216 1217 /** 1218 * Creates a copy of another TaskDescription. 1219 */ 1220 public TaskDescription(TaskDescription td) { 1221 copyFrom(td); 1222 } 1223 1224 /** 1225 * Copies this the values from another TaskDescription. 1226 * @hide 1227 */ 1228 public void copyFrom(TaskDescription other) { 1229 mLabel = other.mLabel; 1230 mIcon = other.mIcon; 1231 mIconFilename = other.mIconFilename; 1232 mColorPrimary = other.mColorPrimary; 1233 mColorBackground = other.mColorBackground; 1234 mStatusBarColor = other.mStatusBarColor; 1235 mNavigationBarColor = other.mNavigationBarColor; 1236 } 1237 1238 /** 1239 * Copies this the values from another TaskDescription, but preserves the hidden fields 1240 * if they weren't set on {@code other} 1241 * @hide 1242 */ 1243 public void copyFromPreserveHiddenFields(TaskDescription other) { 1244 mLabel = other.mLabel; 1245 mIcon = other.mIcon; 1246 mIconFilename = other.mIconFilename; 1247 mColorPrimary = other.mColorPrimary; 1248 if (other.mColorBackground != 0) { 1249 mColorBackground = other.mColorBackground; 1250 } 1251 if (other.mStatusBarColor != 0) { 1252 mStatusBarColor = other.mStatusBarColor; 1253 } 1254 if (other.mNavigationBarColor != 0) { 1255 mNavigationBarColor = other.mNavigationBarColor; 1256 } 1257 } 1258 1259 private TaskDescription(Parcel source) { 1260 readFromParcel(source); 1261 } 1262 1263 /** 1264 * Sets the label for this task description. 1265 * @hide 1266 */ 1267 public void setLabel(String label) { 1268 mLabel = label; 1269 } 1270 1271 /** 1272 * Sets the primary color for this task description. 1273 * @hide 1274 */ 1275 public void setPrimaryColor(int primaryColor) { 1276 // Ensure that the given color is valid 1277 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1278 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1279 } 1280 mColorPrimary = primaryColor; 1281 } 1282 1283 /** 1284 * Sets the background color for this task description. 1285 * @hide 1286 */ 1287 public void setBackgroundColor(int backgroundColor) { 1288 // Ensure that the given color is valid 1289 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1290 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1291 } 1292 mColorBackground = backgroundColor; 1293 } 1294 1295 /** 1296 * @hide 1297 */ 1298 public void setStatusBarColor(int statusBarColor) { 1299 mStatusBarColor = statusBarColor; 1300 } 1301 1302 /** 1303 * @hide 1304 */ 1305 public void setNavigationBarColor(int navigationBarColor) { 1306 mNavigationBarColor = navigationBarColor; 1307 } 1308 1309 /** 1310 * Sets the icon for this task description. 1311 * @hide 1312 */ 1313 public void setIcon(Bitmap icon) { 1314 mIcon = icon; 1315 } 1316 1317 /** 1318 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1319 * bitmap. 1320 * @hide 1321 */ 1322 public void setIconFilename(String iconFilename) { 1323 mIconFilename = iconFilename; 1324 mIcon = null; 1325 } 1326 1327 /** 1328 * @return The label and description of the current state of this task. 1329 */ 1330 public String getLabel() { 1331 return mLabel; 1332 } 1333 1334 /** 1335 * @return The icon that represents the current state of this task. 1336 */ 1337 public Bitmap getIcon() { 1338 if (mIcon != null) { 1339 return mIcon; 1340 } 1341 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1342 } 1343 1344 /** @hide */ 1345 public String getIconFilename() { 1346 return mIconFilename; 1347 } 1348 1349 /** @hide */ 1350 public Bitmap getInMemoryIcon() { 1351 return mIcon; 1352 } 1353 1354 /** @hide */ 1355 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1356 if (iconFilename != null) { 1357 try { 1358 return getService().getTaskDescriptionIcon(iconFilename, 1359 userId); 1360 } catch (RemoteException e) { 1361 throw e.rethrowFromSystemServer(); 1362 } 1363 } 1364 return null; 1365 } 1366 1367 /** 1368 * @return The color override on the theme's primary color. 1369 */ 1370 public int getPrimaryColor() { 1371 return mColorPrimary; 1372 } 1373 1374 /** 1375 * @return The background color. 1376 * @hide 1377 */ 1378 public int getBackgroundColor() { 1379 return mColorBackground; 1380 } 1381 1382 /** 1383 * @hide 1384 */ 1385 public int getStatusBarColor() { 1386 return mStatusBarColor; 1387 } 1388 1389 /** 1390 * @hide 1391 */ 1392 public int getNavigationBarColor() { 1393 return mNavigationBarColor; 1394 } 1395 1396 /** @hide */ 1397 public void saveToXml(XmlSerializer out) throws IOException { 1398 if (mLabel != null) { 1399 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1400 } 1401 if (mColorPrimary != 0) { 1402 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1403 Integer.toHexString(mColorPrimary)); 1404 } 1405 if (mColorBackground != 0) { 1406 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1407 Integer.toHexString(mColorBackground)); 1408 } 1409 if (mIconFilename != null) { 1410 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 1411 } 1412 } 1413 1414 /** @hide */ 1415 public void restoreFromXml(String attrName, String attrValue) { 1416 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1417 setLabel(attrValue); 1418 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1419 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1420 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1421 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1422 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 1423 setIconFilename(attrValue); 1424 } 1425 } 1426 1427 @Override 1428 public int describeContents() { 1429 return 0; 1430 } 1431 1432 @Override 1433 public void writeToParcel(Parcel dest, int flags) { 1434 if (mLabel == null) { 1435 dest.writeInt(0); 1436 } else { 1437 dest.writeInt(1); 1438 dest.writeString(mLabel); 1439 } 1440 if (mIcon == null) { 1441 dest.writeInt(0); 1442 } else { 1443 dest.writeInt(1); 1444 mIcon.writeToParcel(dest, 0); 1445 } 1446 dest.writeInt(mColorPrimary); 1447 dest.writeInt(mColorBackground); 1448 dest.writeInt(mStatusBarColor); 1449 dest.writeInt(mNavigationBarColor); 1450 if (mIconFilename == null) { 1451 dest.writeInt(0); 1452 } else { 1453 dest.writeInt(1); 1454 dest.writeString(mIconFilename); 1455 } 1456 } 1457 1458 public void readFromParcel(Parcel source) { 1459 mLabel = source.readInt() > 0 ? source.readString() : null; 1460 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1461 mColorPrimary = source.readInt(); 1462 mColorBackground = source.readInt(); 1463 mStatusBarColor = source.readInt(); 1464 mNavigationBarColor = source.readInt(); 1465 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1466 } 1467 1468 public static final Creator<TaskDescription> CREATOR 1469 = new Creator<TaskDescription>() { 1470 public TaskDescription createFromParcel(Parcel source) { 1471 return new TaskDescription(source); 1472 } 1473 public TaskDescription[] newArray(int size) { 1474 return new TaskDescription[size]; 1475 } 1476 }; 1477 1478 @Override 1479 public String toString() { 1480 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1481 " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary + 1482 " colorBackground: " + mColorBackground + 1483 " statusBarColor: " + mColorBackground + 1484 " navigationBarColor: " + mNavigationBarColor; 1485 } 1486 } 1487 1488 /** 1489 * Information you can retrieve about tasks that the user has most recently 1490 * started or visited. 1491 */ 1492 public static class RecentTaskInfo implements Parcelable { 1493 /** 1494 * If this task is currently running, this is the identifier for it. 1495 * If it is not running, this will be -1. 1496 */ 1497 public int id; 1498 1499 /** 1500 * The true identifier of this task, valid even if it is not running. 1501 */ 1502 public int persistentId; 1503 1504 /** 1505 * The original Intent used to launch the task. You can use this 1506 * Intent to re-launch the task (if it is no longer running) or bring 1507 * the current task to the front. 1508 */ 1509 public Intent baseIntent; 1510 1511 /** 1512 * If this task was started from an alias, this is the actual 1513 * activity component that was initially started; the component of 1514 * the baseIntent in this case is the name of the actual activity 1515 * implementation that the alias referred to. Otherwise, this is null. 1516 */ 1517 public ComponentName origActivity; 1518 1519 /** 1520 * The actual activity component that started the task. 1521 * @hide 1522 */ 1523 @Nullable 1524 public ComponentName realActivity; 1525 1526 /** 1527 * Description of the task's last state. 1528 */ 1529 public CharSequence description; 1530 1531 /** 1532 * The id of the ActivityStack this Task was on most recently. 1533 * @hide 1534 */ 1535 public int stackId; 1536 1537 /** 1538 * The id of the user the task was running as. 1539 * @hide 1540 */ 1541 public int userId; 1542 1543 /** 1544 * The first time this task was active. 1545 * @hide 1546 */ 1547 public long firstActiveTime; 1548 1549 /** 1550 * The last time this task was active. 1551 * @hide 1552 */ 1553 public long lastActiveTime; 1554 1555 /** 1556 * The recent activity values for the highest activity in the stack to have set the values. 1557 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1558 */ 1559 public TaskDescription taskDescription; 1560 1561 /** 1562 * Task affiliation for grouping with other tasks. 1563 */ 1564 public int affiliatedTaskId; 1565 1566 /** 1567 * Task affiliation color of the source task with the affiliated task id. 1568 * 1569 * @hide 1570 */ 1571 public int affiliatedTaskColor; 1572 1573 /** 1574 * The component launched as the first activity in the task. 1575 * This can be considered the "application" of this task. 1576 */ 1577 public ComponentName baseActivity; 1578 1579 /** 1580 * The activity component at the top of the history stack of the task. 1581 * This is what the user is currently doing. 1582 */ 1583 public ComponentName topActivity; 1584 1585 /** 1586 * Number of activities in this task. 1587 */ 1588 public int numActivities; 1589 1590 /** 1591 * The bounds of the task. 1592 * @hide 1593 */ 1594 public Rect bounds; 1595 1596 /** 1597 * True if the task can go in the docked stack. 1598 * @hide 1599 */ 1600 public boolean supportsSplitScreenMultiWindow; 1601 1602 /** 1603 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1604 * @hide 1605 */ 1606 public int resizeMode; 1607 1608 public RecentTaskInfo() { 1609 } 1610 1611 @Override 1612 public int describeContents() { 1613 return 0; 1614 } 1615 1616 @Override 1617 public void writeToParcel(Parcel dest, int flags) { 1618 dest.writeInt(id); 1619 dest.writeInt(persistentId); 1620 if (baseIntent != null) { 1621 dest.writeInt(1); 1622 baseIntent.writeToParcel(dest, 0); 1623 } else { 1624 dest.writeInt(0); 1625 } 1626 ComponentName.writeToParcel(origActivity, dest); 1627 ComponentName.writeToParcel(realActivity, dest); 1628 TextUtils.writeToParcel(description, dest, 1629 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1630 if (taskDescription != null) { 1631 dest.writeInt(1); 1632 taskDescription.writeToParcel(dest, 0); 1633 } else { 1634 dest.writeInt(0); 1635 } 1636 dest.writeInt(stackId); 1637 dest.writeInt(userId); 1638 dest.writeLong(firstActiveTime); 1639 dest.writeLong(lastActiveTime); 1640 dest.writeInt(affiliatedTaskId); 1641 dest.writeInt(affiliatedTaskColor); 1642 ComponentName.writeToParcel(baseActivity, dest); 1643 ComponentName.writeToParcel(topActivity, dest); 1644 dest.writeInt(numActivities); 1645 if (bounds != null) { 1646 dest.writeInt(1); 1647 bounds.writeToParcel(dest, 0); 1648 } else { 1649 dest.writeInt(0); 1650 } 1651 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1652 dest.writeInt(resizeMode); 1653 } 1654 1655 public void readFromParcel(Parcel source) { 1656 id = source.readInt(); 1657 persistentId = source.readInt(); 1658 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1659 origActivity = ComponentName.readFromParcel(source); 1660 realActivity = ComponentName.readFromParcel(source); 1661 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1662 taskDescription = source.readInt() > 0 ? 1663 TaskDescription.CREATOR.createFromParcel(source) : null; 1664 stackId = source.readInt(); 1665 userId = source.readInt(); 1666 firstActiveTime = source.readLong(); 1667 lastActiveTime = source.readLong(); 1668 affiliatedTaskId = source.readInt(); 1669 affiliatedTaskColor = source.readInt(); 1670 baseActivity = ComponentName.readFromParcel(source); 1671 topActivity = ComponentName.readFromParcel(source); 1672 numActivities = source.readInt(); 1673 bounds = source.readInt() > 0 ? 1674 Rect.CREATOR.createFromParcel(source) : null; 1675 supportsSplitScreenMultiWindow = source.readInt() == 1; 1676 resizeMode = source.readInt(); 1677 } 1678 1679 public static final Creator<RecentTaskInfo> CREATOR 1680 = new Creator<RecentTaskInfo>() { 1681 public RecentTaskInfo createFromParcel(Parcel source) { 1682 return new RecentTaskInfo(source); 1683 } 1684 public RecentTaskInfo[] newArray(int size) { 1685 return new RecentTaskInfo[size]; 1686 } 1687 }; 1688 1689 private RecentTaskInfo(Parcel source) { 1690 readFromParcel(source); 1691 } 1692 } 1693 1694 /** 1695 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1696 * that have set their 1697 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1698 */ 1699 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1700 1701 /** 1702 * Provides a list that does not contain any 1703 * recent tasks that currently are not available to the user. 1704 */ 1705 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1706 1707 /** 1708 * Provides a list that contains recent tasks for all 1709 * profiles of a user. 1710 * @hide 1711 */ 1712 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1713 1714 /** 1715 * Ignores all tasks that are on the home stack. 1716 * @hide 1717 */ 1718 public static final int RECENT_IGNORE_HOME_AND_RECENTS_STACK_TASKS = 0x0008; 1719 1720 /** 1721 * Ignores the top task in the docked stack. 1722 * @hide 1723 */ 1724 public static final int RECENT_INGORE_DOCKED_STACK_TOP_TASK = 0x0010; 1725 1726 /** 1727 * Ignores all tasks that are on the pinned stack. 1728 * @hide 1729 */ 1730 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1731 1732 /** 1733 * <p></p>Return a list of the tasks that the user has recently launched, with 1734 * the most recent being first and older ones after in order. 1735 * 1736 * <p><b>Note: this method is only intended for debugging and presenting 1737 * task management user interfaces</b>. This should never be used for 1738 * core logic in an application, such as deciding between different 1739 * behaviors based on the information found here. Such uses are 1740 * <em>not</em> supported, and will likely break in the future. For 1741 * example, if multiple applications can be actively running at the 1742 * same time, assumptions made about the meaning of the data here for 1743 * purposes of control flow will be incorrect.</p> 1744 * 1745 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1746 * no longer available to third party applications: the introduction of 1747 * document-centric recents means 1748 * it can leak personal information to the caller. For backwards compatibility, 1749 * it will still return a small subset of its data: at least the caller's 1750 * own tasks (though see {@link #getAppTasks()} for the correct supported 1751 * way to retrieve that information), and possibly some other tasks 1752 * such as home that are known to not be sensitive. 1753 * 1754 * @param maxNum The maximum number of entries to return in the list. The 1755 * actual number returned may be smaller, depending on how many tasks the 1756 * user has started and the maximum number the system can remember. 1757 * @param flags Information about what to return. May be any combination 1758 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1759 * 1760 * @return Returns a list of RecentTaskInfo records describing each of 1761 * the recent tasks. 1762 */ 1763 @Deprecated 1764 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1765 throws SecurityException { 1766 try { 1767 return getService().getRecentTasks(maxNum, 1768 flags, UserHandle.myUserId()).getList(); 1769 } catch (RemoteException e) { 1770 throw e.rethrowFromSystemServer(); 1771 } 1772 } 1773 1774 /** 1775 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1776 * specific user. It requires holding 1777 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1778 * @param maxNum The maximum number of entries to return in the list. The 1779 * actual number returned may be smaller, depending on how many tasks the 1780 * user has started and the maximum number the system can remember. 1781 * @param flags Information about what to return. May be any combination 1782 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1783 * 1784 * @return Returns a list of RecentTaskInfo records describing each of 1785 * the recent tasks. Most recently activated tasks go first. 1786 * 1787 * @hide 1788 */ 1789 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1790 throws SecurityException { 1791 try { 1792 return getService().getRecentTasks(maxNum, 1793 flags, userId).getList(); 1794 } catch (RemoteException e) { 1795 throw e.rethrowFromSystemServer(); 1796 } 1797 } 1798 1799 /** 1800 * Information you can retrieve about a particular task that is currently 1801 * "running" in the system. Note that a running task does not mean the 1802 * given task actually has a process it is actively running in; it simply 1803 * means that the user has gone to it and never closed it, but currently 1804 * the system may have killed its process and is only holding on to its 1805 * last state in order to restart it when the user returns. 1806 */ 1807 public static class RunningTaskInfo implements Parcelable { 1808 /** 1809 * A unique identifier for this task. 1810 */ 1811 public int id; 1812 1813 /** 1814 * The stack that currently contains this task. 1815 * @hide 1816 */ 1817 public int stackId; 1818 1819 /** 1820 * The component launched as the first activity in the task. This can 1821 * be considered the "application" of this task. 1822 */ 1823 public ComponentName baseActivity; 1824 1825 /** 1826 * The activity component at the top of the history stack of the task. 1827 * This is what the user is currently doing. 1828 */ 1829 public ComponentName topActivity; 1830 1831 /** 1832 * Thumbnail representation of the task's current state. Currently 1833 * always null. 1834 */ 1835 public Bitmap thumbnail; 1836 1837 /** 1838 * Description of the task's current state. 1839 */ 1840 public CharSequence description; 1841 1842 /** 1843 * Number of activities in this task. 1844 */ 1845 public int numActivities; 1846 1847 /** 1848 * Number of activities that are currently running (not stopped 1849 * and persisted) in this task. 1850 */ 1851 public int numRunning; 1852 1853 /** 1854 * Last time task was run. For sorting. 1855 * @hide 1856 */ 1857 public long lastActiveTime; 1858 1859 /** 1860 * True if the task can go in the docked stack. 1861 * @hide 1862 */ 1863 public boolean supportsSplitScreenMultiWindow; 1864 1865 /** 1866 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1867 * @hide 1868 */ 1869 public int resizeMode; 1870 1871 public RunningTaskInfo() { 1872 } 1873 1874 public int describeContents() { 1875 return 0; 1876 } 1877 1878 public void writeToParcel(Parcel dest, int flags) { 1879 dest.writeInt(id); 1880 dest.writeInt(stackId); 1881 ComponentName.writeToParcel(baseActivity, dest); 1882 ComponentName.writeToParcel(topActivity, dest); 1883 if (thumbnail != null) { 1884 dest.writeInt(1); 1885 thumbnail.writeToParcel(dest, 0); 1886 } else { 1887 dest.writeInt(0); 1888 } 1889 TextUtils.writeToParcel(description, dest, 1890 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1891 dest.writeInt(numActivities); 1892 dest.writeInt(numRunning); 1893 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1894 dest.writeInt(resizeMode); 1895 } 1896 1897 public void readFromParcel(Parcel source) { 1898 id = source.readInt(); 1899 stackId = source.readInt(); 1900 baseActivity = ComponentName.readFromParcel(source); 1901 topActivity = ComponentName.readFromParcel(source); 1902 if (source.readInt() != 0) { 1903 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1904 } else { 1905 thumbnail = null; 1906 } 1907 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1908 numActivities = source.readInt(); 1909 numRunning = source.readInt(); 1910 supportsSplitScreenMultiWindow = source.readInt() != 0; 1911 resizeMode = source.readInt(); 1912 } 1913 1914 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1915 public RunningTaskInfo createFromParcel(Parcel source) { 1916 return new RunningTaskInfo(source); 1917 } 1918 public RunningTaskInfo[] newArray(int size) { 1919 return new RunningTaskInfo[size]; 1920 } 1921 }; 1922 1923 private RunningTaskInfo(Parcel source) { 1924 readFromParcel(source); 1925 } 1926 } 1927 1928 /** 1929 * Get the list of tasks associated with the calling application. 1930 * 1931 * @return The list of tasks associated with the application making this call. 1932 * @throws SecurityException 1933 */ 1934 public List<ActivityManager.AppTask> getAppTasks() { 1935 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1936 List<IBinder> appTasks; 1937 try { 1938 appTasks = getService().getAppTasks(mContext.getPackageName()); 1939 } catch (RemoteException e) { 1940 throw e.rethrowFromSystemServer(); 1941 } 1942 int numAppTasks = appTasks.size(); 1943 for (int i = 0; i < numAppTasks; i++) { 1944 tasks.add(new AppTask(IAppTask.Stub.asInterface(appTasks.get(i)))); 1945 } 1946 return tasks; 1947 } 1948 1949 /** 1950 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1951 * with {@link #addAppTask}. 1952 */ 1953 public Size getAppTaskThumbnailSize() { 1954 synchronized (this) { 1955 ensureAppTaskThumbnailSizeLocked(); 1956 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1957 } 1958 } 1959 1960 private void ensureAppTaskThumbnailSizeLocked() { 1961 if (mAppTaskThumbnailSize == null) { 1962 try { 1963 mAppTaskThumbnailSize = getService().getAppTaskThumbnailSize(); 1964 } catch (RemoteException e) { 1965 throw e.rethrowFromSystemServer(); 1966 } 1967 } 1968 } 1969 1970 /** 1971 * Add a new {@link AppTask} for the calling application. This will create a new 1972 * recents entry that is added to the <b>end</b> of all existing recents. 1973 * 1974 * @param activity The activity that is adding the entry. This is used to help determine 1975 * the context that the new recents entry will be in. 1976 * @param intent The Intent that describes the recents entry. This is the same Intent that 1977 * you would have used to launch the activity for it. In generally you will want to set 1978 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1979 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1980 * entry will exist without an activity, so it doesn't make sense to not retain it when 1981 * its activity disappears. The given Intent here also must have an explicit ComponentName 1982 * set on it. 1983 * @param description Optional additional description information. 1984 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1985 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1986 * recreated in your process, probably in a way you don't like, before the recents entry 1987 * is added. 1988 * 1989 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 1990 * most likely cause of failure is that there is no more room for more tasks for your app. 1991 */ 1992 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 1993 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 1994 Point size; 1995 synchronized (this) { 1996 ensureAppTaskThumbnailSizeLocked(); 1997 size = mAppTaskThumbnailSize; 1998 } 1999 final int tw = thumbnail.getWidth(); 2000 final int th = thumbnail.getHeight(); 2001 if (tw != size.x || th != size.y) { 2002 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 2003 2004 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 2005 float scale; 2006 float dx = 0, dy = 0; 2007 if (tw * size.x > size.y * th) { 2008 scale = (float) size.x / (float) th; 2009 dx = (size.y - tw * scale) * 0.5f; 2010 } else { 2011 scale = (float) size.y / (float) tw; 2012 dy = (size.x - th * scale) * 0.5f; 2013 } 2014 Matrix matrix = new Matrix(); 2015 matrix.setScale(scale, scale); 2016 matrix.postTranslate((int) (dx + 0.5f), 0); 2017 2018 Canvas canvas = new Canvas(bm); 2019 canvas.drawBitmap(thumbnail, matrix, null); 2020 canvas.setBitmap(null); 2021 2022 thumbnail = bm; 2023 } 2024 if (description == null) { 2025 description = new TaskDescription(); 2026 } 2027 try { 2028 return getService().addAppTask(activity.getActivityToken(), 2029 intent, description, thumbnail); 2030 } catch (RemoteException e) { 2031 throw e.rethrowFromSystemServer(); 2032 } 2033 } 2034 2035 /** 2036 * Return a list of the tasks that are currently running, with 2037 * the most recent being first and older ones after in order. Note that 2038 * "running" does not mean any of the task's code is currently loaded or 2039 * activity -- the task may have been frozen by the system, so that it 2040 * can be restarted in its previous state when next brought to the 2041 * foreground. 2042 * 2043 * <p><b>Note: this method is only intended for debugging and presenting 2044 * task management user interfaces</b>. This should never be used for 2045 * core logic in an application, such as deciding between different 2046 * behaviors based on the information found here. Such uses are 2047 * <em>not</em> supported, and will likely break in the future. For 2048 * example, if multiple applications can be actively running at the 2049 * same time, assumptions made about the meaning of the data here for 2050 * purposes of control flow will be incorrect.</p> 2051 * 2052 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 2053 * is no longer available to third party 2054 * applications: the introduction of document-centric recents means 2055 * it can leak person information to the caller. For backwards compatibility, 2056 * it will still return a small subset of its data: at least the caller's 2057 * own tasks, and possibly some other tasks 2058 * such as home that are known to not be sensitive. 2059 * 2060 * @param maxNum The maximum number of entries to return in the list. The 2061 * actual number returned may be smaller, depending on how many tasks the 2062 * user has started. 2063 * 2064 * @return Returns a list of RunningTaskInfo records describing each of 2065 * the running tasks. 2066 */ 2067 @Deprecated 2068 public List<RunningTaskInfo> getRunningTasks(int maxNum) 2069 throws SecurityException { 2070 try { 2071 return getService().getTasks(maxNum, 0); 2072 } catch (RemoteException e) { 2073 throw e.rethrowFromSystemServer(); 2074 } 2075 } 2076 2077 /** 2078 * Completely remove the given task. 2079 * 2080 * @param taskId Identifier of the task to be removed. 2081 * @return Returns true if the given task was found and removed. 2082 * 2083 * @hide 2084 */ 2085 public boolean removeTask(int taskId) throws SecurityException { 2086 try { 2087 return getService().removeTask(taskId); 2088 } catch (RemoteException e) { 2089 throw e.rethrowFromSystemServer(); 2090 } 2091 } 2092 2093 /** 2094 * Represents a task snapshot. 2095 * @hide 2096 */ 2097 public static class TaskSnapshot implements Parcelable { 2098 2099 private final GraphicBuffer mSnapshot; 2100 private final int mOrientation; 2101 private final Rect mContentInsets; 2102 private final boolean mReducedResolution; 2103 private final float mScale; 2104 2105 public TaskSnapshot(GraphicBuffer snapshot, int orientation, Rect contentInsets, 2106 boolean reducedResolution, float scale) { 2107 mSnapshot = snapshot; 2108 mOrientation = orientation; 2109 mContentInsets = new Rect(contentInsets); 2110 mReducedResolution = reducedResolution; 2111 mScale = scale; 2112 } 2113 2114 private TaskSnapshot(Parcel source) { 2115 mSnapshot = source.readParcelable(null /* classLoader */); 2116 mOrientation = source.readInt(); 2117 mContentInsets = source.readParcelable(null /* classLoader */); 2118 mReducedResolution = source.readBoolean(); 2119 mScale = source.readFloat(); 2120 } 2121 2122 /** 2123 * @return The graphic buffer representing the screenshot. 2124 */ 2125 public GraphicBuffer getSnapshot() { 2126 return mSnapshot; 2127 } 2128 2129 /** 2130 * @return The screen orientation the screenshot was taken in. 2131 */ 2132 public int getOrientation() { 2133 return mOrientation; 2134 } 2135 2136 /** 2137 * @return The system/content insets on the snapshot. These can be clipped off in order to 2138 * remove any areas behind system bars in the snapshot. 2139 */ 2140 public Rect getContentInsets() { 2141 return mContentInsets; 2142 } 2143 2144 /** 2145 * @return Whether this snapshot is a down-sampled version of the full resolution. 2146 */ 2147 public boolean isReducedResolution() { 2148 return mReducedResolution; 2149 } 2150 2151 /** 2152 * @return The scale this snapshot was taken in. 2153 */ 2154 public float getScale() { 2155 return mScale; 2156 } 2157 2158 @Override 2159 public int describeContents() { 2160 return 0; 2161 } 2162 2163 @Override 2164 public void writeToParcel(Parcel dest, int flags) { 2165 dest.writeParcelable(mSnapshot, 0); 2166 dest.writeInt(mOrientation); 2167 dest.writeParcelable(mContentInsets, 0); 2168 dest.writeBoolean(mReducedResolution); 2169 dest.writeFloat(mScale); 2170 } 2171 2172 @Override 2173 public String toString() { 2174 return "TaskSnapshot{mSnapshot=" + mSnapshot + " mOrientation=" + mOrientation 2175 + " mContentInsets=" + mContentInsets.toShortString() 2176 + " mReducedResolution=" + mReducedResolution + " mScale=" + mScale; 2177 } 2178 2179 public static final Creator<TaskSnapshot> CREATOR = new Creator<TaskSnapshot>() { 2180 public TaskSnapshot createFromParcel(Parcel source) { 2181 return new TaskSnapshot(source); 2182 } 2183 public TaskSnapshot[] newArray(int size) { 2184 return new TaskSnapshot[size]; 2185 } 2186 }; 2187 } 2188 2189 /** @hide */ 2190 @IntDef(flag = true, prefix = { "MOVE_TASK_" }, value = { 2191 MOVE_TASK_WITH_HOME, 2192 MOVE_TASK_NO_USER_ACTION, 2193 }) 2194 @Retention(RetentionPolicy.SOURCE) 2195 public @interface MoveTaskFlags {} 2196 2197 /** 2198 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2199 * activity along with the task, so it is positioned immediately behind 2200 * the task. 2201 */ 2202 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2203 2204 /** 2205 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2206 * user-instigated action, so the current activity will not receive a 2207 * hint that the user is leaving. 2208 */ 2209 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2210 2211 /** 2212 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2213 * with a null options argument. 2214 * 2215 * @param taskId The identifier of the task to be moved, as found in 2216 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2217 * @param flags Additional operational flags. 2218 */ 2219 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2220 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags) { 2221 moveTaskToFront(taskId, flags, null); 2222 } 2223 2224 /** 2225 * Ask that the task associated with a given task ID be moved to the 2226 * front of the stack, so it is now visible to the user. 2227 * 2228 * @param taskId The identifier of the task to be moved, as found in 2229 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2230 * @param flags Additional operational flags. 2231 * @param options Additional options for the operation, either null or 2232 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2233 * Context.startActivity(Intent, Bundle)}. 2234 */ 2235 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2236 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags, Bundle options) { 2237 try { 2238 getService().moveTaskToFront(taskId, flags, options); 2239 } catch (RemoteException e) { 2240 throw e.rethrowFromSystemServer(); 2241 } 2242 } 2243 2244 /** 2245 * Information you can retrieve about a particular Service that is 2246 * currently running in the system. 2247 */ 2248 public static class RunningServiceInfo implements Parcelable { 2249 /** 2250 * The service component. 2251 */ 2252 public ComponentName service; 2253 2254 /** 2255 * If non-zero, this is the process the service is running in. 2256 */ 2257 public int pid; 2258 2259 /** 2260 * The UID that owns this service. 2261 */ 2262 public int uid; 2263 2264 /** 2265 * The name of the process this service runs in. 2266 */ 2267 public String process; 2268 2269 /** 2270 * Set to true if the service has asked to run as a foreground process. 2271 */ 2272 public boolean foreground; 2273 2274 /** 2275 * The time when the service was first made active, either by someone 2276 * starting or binding to it. This 2277 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2278 */ 2279 public long activeSince; 2280 2281 /** 2282 * Set to true if this service has been explicitly started. 2283 */ 2284 public boolean started; 2285 2286 /** 2287 * Number of clients connected to the service. 2288 */ 2289 public int clientCount; 2290 2291 /** 2292 * Number of times the service's process has crashed while the service 2293 * is running. 2294 */ 2295 public int crashCount; 2296 2297 /** 2298 * The time when there was last activity in the service (either 2299 * explicit requests to start it or clients binding to it). This 2300 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2301 */ 2302 public long lastActivityTime; 2303 2304 /** 2305 * If non-zero, this service is not currently running, but scheduled to 2306 * restart at the given time. 2307 */ 2308 public long restarting; 2309 2310 /** 2311 * Bit for {@link #flags}: set if this service has been 2312 * explicitly started. 2313 */ 2314 public static final int FLAG_STARTED = 1<<0; 2315 2316 /** 2317 * Bit for {@link #flags}: set if the service has asked to 2318 * run as a foreground process. 2319 */ 2320 public static final int FLAG_FOREGROUND = 1<<1; 2321 2322 /** 2323 * Bit for {@link #flags}: set if the service is running in a 2324 * core system process. 2325 */ 2326 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2327 2328 /** 2329 * Bit for {@link #flags}: set if the service is running in a 2330 * persistent process. 2331 */ 2332 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2333 2334 /** 2335 * Running flags. 2336 */ 2337 public int flags; 2338 2339 /** 2340 * For special services that are bound to by system code, this is 2341 * the package that holds the binding. 2342 */ 2343 public String clientPackage; 2344 2345 /** 2346 * For special services that are bound to by system code, this is 2347 * a string resource providing a user-visible label for who the 2348 * client is. 2349 */ 2350 public int clientLabel; 2351 2352 public RunningServiceInfo() { 2353 } 2354 2355 public int describeContents() { 2356 return 0; 2357 } 2358 2359 public void writeToParcel(Parcel dest, int flags) { 2360 ComponentName.writeToParcel(service, dest); 2361 dest.writeInt(pid); 2362 dest.writeInt(uid); 2363 dest.writeString(process); 2364 dest.writeInt(foreground ? 1 : 0); 2365 dest.writeLong(activeSince); 2366 dest.writeInt(started ? 1 : 0); 2367 dest.writeInt(clientCount); 2368 dest.writeInt(crashCount); 2369 dest.writeLong(lastActivityTime); 2370 dest.writeLong(restarting); 2371 dest.writeInt(this.flags); 2372 dest.writeString(clientPackage); 2373 dest.writeInt(clientLabel); 2374 } 2375 2376 public void readFromParcel(Parcel source) { 2377 service = ComponentName.readFromParcel(source); 2378 pid = source.readInt(); 2379 uid = source.readInt(); 2380 process = source.readString(); 2381 foreground = source.readInt() != 0; 2382 activeSince = source.readLong(); 2383 started = source.readInt() != 0; 2384 clientCount = source.readInt(); 2385 crashCount = source.readInt(); 2386 lastActivityTime = source.readLong(); 2387 restarting = source.readLong(); 2388 flags = source.readInt(); 2389 clientPackage = source.readString(); 2390 clientLabel = source.readInt(); 2391 } 2392 2393 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2394 public RunningServiceInfo createFromParcel(Parcel source) { 2395 return new RunningServiceInfo(source); 2396 } 2397 public RunningServiceInfo[] newArray(int size) { 2398 return new RunningServiceInfo[size]; 2399 } 2400 }; 2401 2402 private RunningServiceInfo(Parcel source) { 2403 readFromParcel(source); 2404 } 2405 } 2406 2407 /** 2408 * Return a list of the services that are currently running. 2409 * 2410 * <p><b>Note: this method is only intended for debugging or implementing 2411 * service management type user interfaces.</b></p> 2412 * 2413 * @deprecated As of {@link android.os.Build.VERSION_CODES#O}, this method 2414 * is no longer available to third party applications. For backwards compatibility, 2415 * it will still return the caller's own services. 2416 * 2417 * @param maxNum The maximum number of entries to return in the list. The 2418 * actual number returned may be smaller, depending on how many services 2419 * are running. 2420 * 2421 * @return Returns a list of RunningServiceInfo records describing each of 2422 * the running tasks. 2423 */ 2424 @Deprecated 2425 public List<RunningServiceInfo> getRunningServices(int maxNum) 2426 throws SecurityException { 2427 try { 2428 return getService() 2429 .getServices(maxNum, 0); 2430 } catch (RemoteException e) { 2431 throw e.rethrowFromSystemServer(); 2432 } 2433 } 2434 2435 /** 2436 * Returns a PendingIntent you can start to show a control panel for the 2437 * given running service. If the service does not have a control panel, 2438 * null is returned. 2439 */ 2440 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2441 throws SecurityException { 2442 try { 2443 return getService() 2444 .getRunningServiceControlPanel(service); 2445 } catch (RemoteException e) { 2446 throw e.rethrowFromSystemServer(); 2447 } 2448 } 2449 2450 /** 2451 * Information you can retrieve about the available memory through 2452 * {@link ActivityManager#getMemoryInfo}. 2453 */ 2454 public static class MemoryInfo implements Parcelable { 2455 /** 2456 * The available memory on the system. This number should not 2457 * be considered absolute: due to the nature of the kernel, a significant 2458 * portion of this memory is actually in use and needed for the overall 2459 * system to run well. 2460 */ 2461 public long availMem; 2462 2463 /** 2464 * The total memory accessible by the kernel. This is basically the 2465 * RAM size of the device, not including below-kernel fixed allocations 2466 * like DMA buffers, RAM for the baseband CPU, etc. 2467 */ 2468 public long totalMem; 2469 2470 /** 2471 * The threshold of {@link #availMem} at which we consider memory to be 2472 * low and start killing background services and other non-extraneous 2473 * processes. 2474 */ 2475 public long threshold; 2476 2477 /** 2478 * Set to true if the system considers itself to currently be in a low 2479 * memory situation. 2480 */ 2481 public boolean lowMemory; 2482 2483 /** @hide */ 2484 public long hiddenAppThreshold; 2485 /** @hide */ 2486 public long secondaryServerThreshold; 2487 /** @hide */ 2488 public long visibleAppThreshold; 2489 /** @hide */ 2490 public long foregroundAppThreshold; 2491 2492 public MemoryInfo() { 2493 } 2494 2495 public int describeContents() { 2496 return 0; 2497 } 2498 2499 public void writeToParcel(Parcel dest, int flags) { 2500 dest.writeLong(availMem); 2501 dest.writeLong(totalMem); 2502 dest.writeLong(threshold); 2503 dest.writeInt(lowMemory ? 1 : 0); 2504 dest.writeLong(hiddenAppThreshold); 2505 dest.writeLong(secondaryServerThreshold); 2506 dest.writeLong(visibleAppThreshold); 2507 dest.writeLong(foregroundAppThreshold); 2508 } 2509 2510 public void readFromParcel(Parcel source) { 2511 availMem = source.readLong(); 2512 totalMem = source.readLong(); 2513 threshold = source.readLong(); 2514 lowMemory = source.readInt() != 0; 2515 hiddenAppThreshold = source.readLong(); 2516 secondaryServerThreshold = source.readLong(); 2517 visibleAppThreshold = source.readLong(); 2518 foregroundAppThreshold = source.readLong(); 2519 } 2520 2521 public static final Creator<MemoryInfo> CREATOR 2522 = new Creator<MemoryInfo>() { 2523 public MemoryInfo createFromParcel(Parcel source) { 2524 return new MemoryInfo(source); 2525 } 2526 public MemoryInfo[] newArray(int size) { 2527 return new MemoryInfo[size]; 2528 } 2529 }; 2530 2531 private MemoryInfo(Parcel source) { 2532 readFromParcel(source); 2533 } 2534 } 2535 2536 /** 2537 * Return general information about the memory state of the system. This 2538 * can be used to help decide how to manage your own memory, though note 2539 * that polling is not recommended and 2540 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2541 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2542 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2543 * level of your process as needed, which gives a better hint for how to 2544 * manage its memory. 2545 */ 2546 public void getMemoryInfo(MemoryInfo outInfo) { 2547 try { 2548 getService().getMemoryInfo(outInfo); 2549 } catch (RemoteException e) { 2550 throw e.rethrowFromSystemServer(); 2551 } 2552 } 2553 2554 /** 2555 * Information you can retrieve about an ActivityStack in the system. 2556 * @hide 2557 */ 2558 public static class StackInfo implements Parcelable { 2559 public int stackId; 2560 public Rect bounds = new Rect(); 2561 public int[] taskIds; 2562 public String[] taskNames; 2563 public Rect[] taskBounds; 2564 public int[] taskUserIds; 2565 public ComponentName topActivity; 2566 public int displayId; 2567 public int userId; 2568 public boolean visible; 2569 // Index of the stack in the display's stack list, can be used for comparison of stack order 2570 public int position; 2571 2572 @Override 2573 public int describeContents() { 2574 return 0; 2575 } 2576 2577 @Override 2578 public void writeToParcel(Parcel dest, int flags) { 2579 dest.writeInt(stackId); 2580 dest.writeInt(bounds.left); 2581 dest.writeInt(bounds.top); 2582 dest.writeInt(bounds.right); 2583 dest.writeInt(bounds.bottom); 2584 dest.writeIntArray(taskIds); 2585 dest.writeStringArray(taskNames); 2586 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2587 dest.writeInt(boundsCount); 2588 for (int i = 0; i < boundsCount; i++) { 2589 dest.writeInt(taskBounds[i].left); 2590 dest.writeInt(taskBounds[i].top); 2591 dest.writeInt(taskBounds[i].right); 2592 dest.writeInt(taskBounds[i].bottom); 2593 } 2594 dest.writeIntArray(taskUserIds); 2595 dest.writeInt(displayId); 2596 dest.writeInt(userId); 2597 dest.writeInt(visible ? 1 : 0); 2598 dest.writeInt(position); 2599 if (topActivity != null) { 2600 dest.writeInt(1); 2601 topActivity.writeToParcel(dest, 0); 2602 } else { 2603 dest.writeInt(0); 2604 } 2605 } 2606 2607 public void readFromParcel(Parcel source) { 2608 stackId = source.readInt(); 2609 bounds = new Rect( 2610 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2611 taskIds = source.createIntArray(); 2612 taskNames = source.createStringArray(); 2613 final int boundsCount = source.readInt(); 2614 if (boundsCount > 0) { 2615 taskBounds = new Rect[boundsCount]; 2616 for (int i = 0; i < boundsCount; i++) { 2617 taskBounds[i] = new Rect(); 2618 taskBounds[i].set( 2619 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2620 } 2621 } else { 2622 taskBounds = null; 2623 } 2624 taskUserIds = source.createIntArray(); 2625 displayId = source.readInt(); 2626 userId = source.readInt(); 2627 visible = source.readInt() > 0; 2628 position = source.readInt(); 2629 if (source.readInt() > 0) { 2630 topActivity = ComponentName.readFromParcel(source); 2631 } 2632 } 2633 2634 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2635 @Override 2636 public StackInfo createFromParcel(Parcel source) { 2637 return new StackInfo(source); 2638 } 2639 @Override 2640 public StackInfo[] newArray(int size) { 2641 return new StackInfo[size]; 2642 } 2643 }; 2644 2645 public StackInfo() { 2646 } 2647 2648 private StackInfo(Parcel source) { 2649 readFromParcel(source); 2650 } 2651 2652 public String toString(String prefix) { 2653 StringBuilder sb = new StringBuilder(256); 2654 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2655 sb.append(" bounds="); sb.append(bounds.toShortString()); 2656 sb.append(" displayId="); sb.append(displayId); 2657 sb.append(" userId="); sb.append(userId); 2658 sb.append("\n"); 2659 prefix = prefix + " "; 2660 for (int i = 0; i < taskIds.length; ++i) { 2661 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2662 sb.append(": "); sb.append(taskNames[i]); 2663 if (taskBounds != null) { 2664 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2665 } 2666 sb.append(" userId=").append(taskUserIds[i]); 2667 sb.append(" visible=").append(visible); 2668 if (topActivity != null) { 2669 sb.append(" topActivity=").append(topActivity); 2670 } 2671 sb.append("\n"); 2672 } 2673 return sb.toString(); 2674 } 2675 2676 @Override 2677 public String toString() { 2678 return toString(""); 2679 } 2680 } 2681 2682 /** 2683 * @hide 2684 */ 2685 @RequiresPermission(anyOf={Manifest.permission.CLEAR_APP_USER_DATA, 2686 Manifest.permission.ACCESS_INSTANT_APPS}) 2687 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2688 try { 2689 return getService().clearApplicationUserData(packageName, 2690 observer, UserHandle.myUserId()); 2691 } catch (RemoteException e) { 2692 throw e.rethrowFromSystemServer(); 2693 } 2694 } 2695 2696 /** 2697 * Permits an application to erase its own data from disk. This is equivalent to 2698 * the user choosing to clear the app's data from within the device settings UI. It 2699 * erases all dynamic data associated with the app -- its private data and data in its 2700 * private area on external storage -- but does not remove the installed application 2701 * itself, nor any OBB files. 2702 * 2703 * @return {@code true} if the application successfully requested that the application's 2704 * data be erased; {@code false} otherwise. 2705 */ 2706 public boolean clearApplicationUserData() { 2707 return clearApplicationUserData(mContext.getPackageName(), null); 2708 } 2709 2710 2711 /** 2712 * Permits an application to get the persistent URI permissions granted to another. 2713 * 2714 * <p>Typically called by Settings. 2715 * 2716 * @param packageName application to look for the granted permissions 2717 * @return list of granted URI permissions 2718 * 2719 * @hide 2720 */ 2721 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2722 try { 2723 return getService().getGrantedUriPermissions(packageName, 2724 UserHandle.myUserId()); 2725 } catch (RemoteException e) { 2726 throw e.rethrowFromSystemServer(); 2727 } 2728 } 2729 2730 /** 2731 * Permits an application to clear the persistent URI permissions granted to another. 2732 * 2733 * <p>Typically called by Settings. 2734 * 2735 * @param packageName application to clear its granted permissions 2736 * 2737 * @hide 2738 */ 2739 public void clearGrantedUriPermissions(String packageName) { 2740 try { 2741 getService().clearGrantedUriPermissions(packageName, 2742 UserHandle.myUserId()); 2743 } catch (RemoteException e) { 2744 throw e.rethrowFromSystemServer(); 2745 } 2746 } 2747 2748 /** 2749 * Information you can retrieve about any processes that are in an error condition. 2750 */ 2751 public static class ProcessErrorStateInfo implements Parcelable { 2752 /** 2753 * Condition codes 2754 */ 2755 public static final int NO_ERROR = 0; 2756 public static final int CRASHED = 1; 2757 public static final int NOT_RESPONDING = 2; 2758 2759 /** 2760 * The condition that the process is in. 2761 */ 2762 public int condition; 2763 2764 /** 2765 * The process name in which the crash or error occurred. 2766 */ 2767 public String processName; 2768 2769 /** 2770 * The pid of this process; 0 if none 2771 */ 2772 public int pid; 2773 2774 /** 2775 * The kernel user-ID that has been assigned to this process; 2776 * currently this is not a unique ID (multiple applications can have 2777 * the same uid). 2778 */ 2779 public int uid; 2780 2781 /** 2782 * The activity name associated with the error, if known. May be null. 2783 */ 2784 public String tag; 2785 2786 /** 2787 * A short message describing the error condition. 2788 */ 2789 public String shortMsg; 2790 2791 /** 2792 * A long message describing the error condition. 2793 */ 2794 public String longMsg; 2795 2796 /** 2797 * The stack trace where the error originated. May be null. 2798 */ 2799 public String stackTrace; 2800 2801 /** 2802 * to be deprecated: This value will always be null. 2803 */ 2804 public byte[] crashData = null; 2805 2806 public ProcessErrorStateInfo() { 2807 } 2808 2809 @Override 2810 public int describeContents() { 2811 return 0; 2812 } 2813 2814 @Override 2815 public void writeToParcel(Parcel dest, int flags) { 2816 dest.writeInt(condition); 2817 dest.writeString(processName); 2818 dest.writeInt(pid); 2819 dest.writeInt(uid); 2820 dest.writeString(tag); 2821 dest.writeString(shortMsg); 2822 dest.writeString(longMsg); 2823 dest.writeString(stackTrace); 2824 } 2825 2826 public void readFromParcel(Parcel source) { 2827 condition = source.readInt(); 2828 processName = source.readString(); 2829 pid = source.readInt(); 2830 uid = source.readInt(); 2831 tag = source.readString(); 2832 shortMsg = source.readString(); 2833 longMsg = source.readString(); 2834 stackTrace = source.readString(); 2835 } 2836 2837 public static final Creator<ProcessErrorStateInfo> CREATOR = 2838 new Creator<ProcessErrorStateInfo>() { 2839 public ProcessErrorStateInfo createFromParcel(Parcel source) { 2840 return new ProcessErrorStateInfo(source); 2841 } 2842 public ProcessErrorStateInfo[] newArray(int size) { 2843 return new ProcessErrorStateInfo[size]; 2844 } 2845 }; 2846 2847 private ProcessErrorStateInfo(Parcel source) { 2848 readFromParcel(source); 2849 } 2850 } 2851 2852 /** 2853 * Returns a list of any processes that are currently in an error condition. The result 2854 * will be null if all processes are running properly at this time. 2855 * 2856 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 2857 * current error conditions (it will not return an empty list). This list ordering is not 2858 * specified. 2859 */ 2860 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 2861 try { 2862 return getService().getProcessesInErrorState(); 2863 } catch (RemoteException e) { 2864 throw e.rethrowFromSystemServer(); 2865 } 2866 } 2867 2868 /** 2869 * Information you can retrieve about a running process. 2870 */ 2871 public static class RunningAppProcessInfo implements Parcelable { 2872 /** 2873 * The name of the process that this object is associated with 2874 */ 2875 public String processName; 2876 2877 /** 2878 * The pid of this process; 0 if none 2879 */ 2880 public int pid; 2881 2882 /** 2883 * The user id of this process. 2884 */ 2885 public int uid; 2886 2887 /** 2888 * All packages that have been loaded into the process. 2889 */ 2890 public String pkgList[]; 2891 2892 /** 2893 * Constant for {@link #flags}: this is an app that is unable to 2894 * correctly save its state when going to the background, 2895 * so it can not be killed while in the background. 2896 * @hide 2897 */ 2898 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 2899 2900 /** 2901 * Constant for {@link #flags}: this process is associated with a 2902 * persistent system app. 2903 * @hide 2904 */ 2905 public static final int FLAG_PERSISTENT = 1<<1; 2906 2907 /** 2908 * Constant for {@link #flags}: this process is associated with a 2909 * persistent system app. 2910 * @hide 2911 */ 2912 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 2913 2914 /** 2915 * Flags of information. May be any of 2916 * {@link #FLAG_CANT_SAVE_STATE}. 2917 * @hide 2918 */ 2919 public int flags; 2920 2921 /** 2922 * Last memory trim level reported to the process: corresponds to 2923 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2924 * ComponentCallbacks2.onTrimMemory(int)}. 2925 */ 2926 public int lastTrimLevel; 2927 2928 /** @hide */ 2929 @IntDef(prefix = { "IMPORTANCE_" }, value = { 2930 IMPORTANCE_FOREGROUND, 2931 IMPORTANCE_FOREGROUND_SERVICE, 2932 IMPORTANCE_TOP_SLEEPING, 2933 IMPORTANCE_VISIBLE, 2934 IMPORTANCE_PERCEPTIBLE, 2935 IMPORTANCE_CANT_SAVE_STATE, 2936 IMPORTANCE_SERVICE, 2937 IMPORTANCE_CACHED, 2938 IMPORTANCE_GONE, 2939 }) 2940 @Retention(RetentionPolicy.SOURCE) 2941 public @interface Importance {} 2942 2943 /** 2944 * Constant for {@link #importance}: This process is running the 2945 * foreground UI; that is, it is the thing currently at the top of the screen 2946 * that the user is interacting with. 2947 */ 2948 public static final int IMPORTANCE_FOREGROUND = 100; 2949 2950 /** 2951 * Constant for {@link #importance}: This process is running a foreground 2952 * service, for example to perform music playback even while the user is 2953 * not immediately in the app. This generally indicates that the process 2954 * is doing something the user actively cares about. 2955 */ 2956 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 2957 2958 /** 2959 * Constant for {@link #importance}: This process is running the foreground 2960 * UI, but the device is asleep so it is not visible to the user. This means 2961 * the user is not really aware of the process, because they can not see or 2962 * interact with it, but it is quite important because it what they expect to 2963 * return to once unlocking the device. 2964 */ 2965 public static final int IMPORTANCE_TOP_SLEEPING = 150; 2966 2967 /** 2968 * Constant for {@link #importance}: This process is running something 2969 * that is actively visible to the user, though not in the immediate 2970 * foreground. This may be running a window that is behind the current 2971 * foreground (so paused and with its state saved, not interacting with 2972 * the user, but visible to them to some degree); it may also be running 2973 * other services under the system's control that it inconsiders important. 2974 */ 2975 public static final int IMPORTANCE_VISIBLE = 200; 2976 2977 /** 2978 * Constant for {@link #importance}: {@link #IMPORTANCE_PERCEPTIBLE} had this wrong value 2979 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 2980 * the value of {@link #IMPORTANCE_PERCEPTIBLE} has been fixed. 2981 * 2982 * <p>The system will return this value instead of {@link #IMPORTANCE_PERCEPTIBLE} 2983 * on Android versions below {@link Build.VERSION_CODES#O}. 2984 * 2985 * <p>On Android version {@link Build.VERSION_CODES#O} and later, this value will still be 2986 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 2987 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 2988 * the correct value {@link #IMPORTANCE_PERCEPTIBLE} will be returned. 2989 */ 2990 public static final int IMPORTANCE_PERCEPTIBLE_PRE_26 = 130; 2991 2992 /** 2993 * Constant for {@link #importance}: This process is not something the user 2994 * is directly aware of, but is otherwise perceptible to them to some degree. 2995 */ 2996 public static final int IMPORTANCE_PERCEPTIBLE = 230; 2997 2998 /** 2999 * Constant for {@link #importance}: {@link #IMPORTANCE_CANT_SAVE_STATE} had 3000 * this wrong value 3001 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3002 * the value of {@link #IMPORTANCE_CANT_SAVE_STATE} has been fixed. 3003 * 3004 * <p>The system will return this value instead of {@link #IMPORTANCE_CANT_SAVE_STATE} 3005 * on Android versions below {@link Build.VERSION_CODES#O}. 3006 * 3007 * <p>On Android version {@link Build.VERSION_CODES#O} after, this value will still be 3008 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 3009 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 3010 * the correct value {@link #IMPORTANCE_CANT_SAVE_STATE} will be returned. 3011 * 3012 * @hide 3013 */ 3014 public static final int IMPORTANCE_CANT_SAVE_STATE_PRE_26 = 170; 3015 3016 /** 3017 * Constant for {@link #importance}: This process is running an 3018 * application that can not save its state, and thus can't be killed 3019 * while in the background. 3020 * @hide 3021 */ 3022 public static final int IMPORTANCE_CANT_SAVE_STATE= 270; 3023 3024 /** 3025 * Constant for {@link #importance}: This process is contains services 3026 * that should remain running. These are background services apps have 3027 * started, not something the user is aware of, so they may be killed by 3028 * the system relatively freely (though it is generally desired that they 3029 * stay running as long as they want to). 3030 */ 3031 public static final int IMPORTANCE_SERVICE = 300; 3032 3033 /** 3034 * Constant for {@link #importance}: This process process contains 3035 * cached code that is expendable, not actively running any app components 3036 * we care about. 3037 */ 3038 public static final int IMPORTANCE_CACHED = 400; 3039 3040 /** 3041 * @deprecated Renamed to {@link #IMPORTANCE_CACHED}. 3042 */ 3043 public static final int IMPORTANCE_BACKGROUND = IMPORTANCE_CACHED; 3044 3045 /** 3046 * Constant for {@link #importance}: This process is empty of any 3047 * actively running code. 3048 * @deprecated This value is no longer reported, use {@link #IMPORTANCE_CACHED} instead. 3049 */ 3050 @Deprecated 3051 public static final int IMPORTANCE_EMPTY = 500; 3052 3053 /** 3054 * Constant for {@link #importance}: This process does not exist. 3055 */ 3056 public static final int IMPORTANCE_GONE = 1000; 3057 3058 /** 3059 * Convert a proc state to the correspondent IMPORTANCE_* constant. If the return value 3060 * will be passed to a client, use {@link #procStateToImportanceForClient}. 3061 * @hide 3062 */ 3063 public static @Importance int procStateToImportance(int procState) { 3064 if (procState == PROCESS_STATE_NONEXISTENT) { 3065 return IMPORTANCE_GONE; 3066 } else if (procState >= PROCESS_STATE_HOME) { 3067 return IMPORTANCE_CACHED; 3068 } else if (procState >= PROCESS_STATE_SERVICE) { 3069 return IMPORTANCE_SERVICE; 3070 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 3071 return IMPORTANCE_CANT_SAVE_STATE; 3072 } else if (procState >= PROCESS_STATE_TRANSIENT_BACKGROUND) { 3073 return IMPORTANCE_PERCEPTIBLE; 3074 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 3075 return IMPORTANCE_VISIBLE; 3076 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 3077 return IMPORTANCE_TOP_SLEEPING; 3078 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 3079 return IMPORTANCE_FOREGROUND_SERVICE; 3080 } else { 3081 return IMPORTANCE_FOREGROUND; 3082 } 3083 } 3084 3085 /** 3086 * Convert a proc state to the correspondent IMPORTANCE_* constant for a client represented 3087 * by a given {@link Context}, with converting {@link #IMPORTANCE_PERCEPTIBLE} 3088 * and {@link #IMPORTANCE_CANT_SAVE_STATE} to the corresponding "wrong" value if the 3089 * client's target SDK < {@link VERSION_CODES#O}. 3090 * @hide 3091 */ 3092 public static @Importance int procStateToImportanceForClient(int procState, 3093 Context clientContext) { 3094 return procStateToImportanceForTargetSdk(procState, 3095 clientContext.getApplicationInfo().targetSdkVersion); 3096 } 3097 3098 /** 3099 * See {@link #procStateToImportanceForClient}. 3100 * @hide 3101 */ 3102 public static @Importance int procStateToImportanceForTargetSdk(int procState, 3103 int targetSdkVersion) { 3104 final int importance = procStateToImportance(procState); 3105 3106 // For pre O apps, convert to the old, wrong values. 3107 if (targetSdkVersion < VERSION_CODES.O) { 3108 switch (importance) { 3109 case IMPORTANCE_PERCEPTIBLE: 3110 return IMPORTANCE_PERCEPTIBLE_PRE_26; 3111 case IMPORTANCE_CANT_SAVE_STATE: 3112 return IMPORTANCE_CANT_SAVE_STATE_PRE_26; 3113 } 3114 } 3115 return importance; 3116 } 3117 3118 /** @hide */ 3119 public static int importanceToProcState(@Importance int importance) { 3120 if (importance == IMPORTANCE_GONE) { 3121 return PROCESS_STATE_NONEXISTENT; 3122 } else if (importance >= IMPORTANCE_CACHED) { 3123 return PROCESS_STATE_HOME; 3124 } else if (importance >= IMPORTANCE_SERVICE) { 3125 return PROCESS_STATE_SERVICE; 3126 } else if (importance > IMPORTANCE_CANT_SAVE_STATE) { 3127 return PROCESS_STATE_HEAVY_WEIGHT; 3128 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 3129 return PROCESS_STATE_TRANSIENT_BACKGROUND; 3130 } else if (importance >= IMPORTANCE_VISIBLE) { 3131 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3132 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 3133 return PROCESS_STATE_TOP_SLEEPING; 3134 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 3135 return PROCESS_STATE_FOREGROUND_SERVICE; 3136 } else { 3137 return PROCESS_STATE_BOUND_FOREGROUND_SERVICE; 3138 } 3139 } 3140 3141 /** 3142 * The relative importance level that the system places on this process. 3143 * These constants are numbered so that "more important" values are 3144 * always smaller than "less important" values. 3145 */ 3146 public @Importance int importance; 3147 3148 /** 3149 * An additional ordering within a particular {@link #importance} 3150 * category, providing finer-grained information about the relative 3151 * utility of processes within a category. This number means nothing 3152 * except that a smaller values are more recently used (and thus 3153 * more important). Currently an LRU value is only maintained for 3154 * the {@link #IMPORTANCE_CACHED} category, though others may 3155 * be maintained in the future. 3156 */ 3157 public int lru; 3158 3159 /** 3160 * Constant for {@link #importanceReasonCode}: nothing special has 3161 * been specified for the reason for this level. 3162 */ 3163 public static final int REASON_UNKNOWN = 0; 3164 3165 /** 3166 * Constant for {@link #importanceReasonCode}: one of the application's 3167 * content providers is being used by another process. The pid of 3168 * the client process is in {@link #importanceReasonPid} and the 3169 * target provider in this process is in 3170 * {@link #importanceReasonComponent}. 3171 */ 3172 public static final int REASON_PROVIDER_IN_USE = 1; 3173 3174 /** 3175 * Constant for {@link #importanceReasonCode}: one of the application's 3176 * content providers is being used by another process. The pid of 3177 * the client process is in {@link #importanceReasonPid} and the 3178 * target provider in this process is in 3179 * {@link #importanceReasonComponent}. 3180 */ 3181 public static final int REASON_SERVICE_IN_USE = 2; 3182 3183 /** 3184 * The reason for {@link #importance}, if any. 3185 */ 3186 public int importanceReasonCode; 3187 3188 /** 3189 * For the specified values of {@link #importanceReasonCode}, this 3190 * is the process ID of the other process that is a client of this 3191 * process. This will be 0 if no other process is using this one. 3192 */ 3193 public int importanceReasonPid; 3194 3195 /** 3196 * For the specified values of {@link #importanceReasonCode}, this 3197 * is the name of the component that is being used in this process. 3198 */ 3199 public ComponentName importanceReasonComponent; 3200 3201 /** 3202 * When {@link #importanceReasonPid} is non-0, this is the importance 3203 * of the other pid. @hide 3204 */ 3205 public int importanceReasonImportance; 3206 3207 /** 3208 * Current process state, as per PROCESS_STATE_* constants. 3209 * @hide 3210 */ 3211 public int processState; 3212 3213 public RunningAppProcessInfo() { 3214 importance = IMPORTANCE_FOREGROUND; 3215 importanceReasonCode = REASON_UNKNOWN; 3216 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 3217 } 3218 3219 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 3220 processName = pProcessName; 3221 pid = pPid; 3222 pkgList = pArr; 3223 } 3224 3225 public int describeContents() { 3226 return 0; 3227 } 3228 3229 public void writeToParcel(Parcel dest, int flags) { 3230 dest.writeString(processName); 3231 dest.writeInt(pid); 3232 dest.writeInt(uid); 3233 dest.writeStringArray(pkgList); 3234 dest.writeInt(this.flags); 3235 dest.writeInt(lastTrimLevel); 3236 dest.writeInt(importance); 3237 dest.writeInt(lru); 3238 dest.writeInt(importanceReasonCode); 3239 dest.writeInt(importanceReasonPid); 3240 ComponentName.writeToParcel(importanceReasonComponent, dest); 3241 dest.writeInt(importanceReasonImportance); 3242 dest.writeInt(processState); 3243 } 3244 3245 public void readFromParcel(Parcel source) { 3246 processName = source.readString(); 3247 pid = source.readInt(); 3248 uid = source.readInt(); 3249 pkgList = source.readStringArray(); 3250 flags = source.readInt(); 3251 lastTrimLevel = source.readInt(); 3252 importance = source.readInt(); 3253 lru = source.readInt(); 3254 importanceReasonCode = source.readInt(); 3255 importanceReasonPid = source.readInt(); 3256 importanceReasonComponent = ComponentName.readFromParcel(source); 3257 importanceReasonImportance = source.readInt(); 3258 processState = source.readInt(); 3259 } 3260 3261 public static final Creator<RunningAppProcessInfo> CREATOR = 3262 new Creator<RunningAppProcessInfo>() { 3263 public RunningAppProcessInfo createFromParcel(Parcel source) { 3264 return new RunningAppProcessInfo(source); 3265 } 3266 public RunningAppProcessInfo[] newArray(int size) { 3267 return new RunningAppProcessInfo[size]; 3268 } 3269 }; 3270 3271 private RunningAppProcessInfo(Parcel source) { 3272 readFromParcel(source); 3273 } 3274 } 3275 3276 /** 3277 * Returns a list of application processes installed on external media 3278 * that are running on the device. 3279 * 3280 * <p><b>Note: this method is only intended for debugging or building 3281 * a user-facing process management UI.</b></p> 3282 * 3283 * @return Returns a list of ApplicationInfo records, or null if none 3284 * This list ordering is not specified. 3285 * @hide 3286 */ 3287 public List<ApplicationInfo> getRunningExternalApplications() { 3288 try { 3289 return getService().getRunningExternalApplications(); 3290 } catch (RemoteException e) { 3291 throw e.rethrowFromSystemServer(); 3292 } 3293 } 3294 3295 /** 3296 * Sets the memory trim mode for a process and schedules a memory trim operation. 3297 * 3298 * <p><b>Note: this method is only intended for testing framework.</b></p> 3299 * 3300 * @return Returns true if successful. 3301 * @hide 3302 */ 3303 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3304 try { 3305 return getService().setProcessMemoryTrimLevel(process, userId, 3306 level); 3307 } catch (RemoteException e) { 3308 throw e.rethrowFromSystemServer(); 3309 } 3310 } 3311 3312 /** 3313 * Returns a list of application processes that are running on the device. 3314 * 3315 * <p><b>Note: this method is only intended for debugging or building 3316 * a user-facing process management UI.</b></p> 3317 * 3318 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3319 * running processes (it will not return an empty list). This list ordering is not 3320 * specified. 3321 */ 3322 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3323 try { 3324 return getService().getRunningAppProcesses(); 3325 } catch (RemoteException e) { 3326 throw e.rethrowFromSystemServer(); 3327 } 3328 } 3329 3330 /** 3331 * Return the importance of a given package name, based on the processes that are 3332 * currently running. The return value is one of the importance constants defined 3333 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3334 * processes that this package has code running inside of. If there are no processes 3335 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3336 * @hide 3337 */ 3338 @SystemApi @TestApi 3339 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3340 public @RunningAppProcessInfo.Importance int getPackageImportance(String packageName) { 3341 try { 3342 int procState = getService().getPackageProcessState(packageName, 3343 mContext.getOpPackageName()); 3344 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3345 } catch (RemoteException e) { 3346 throw e.rethrowFromSystemServer(); 3347 } 3348 } 3349 3350 /** 3351 * Return the importance of a given uid, based on the processes that are 3352 * currently running. The return value is one of the importance constants defined 3353 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3354 * processes that this uid has running. If there are no processes 3355 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3356 * @hide 3357 */ 3358 @SystemApi @TestApi 3359 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3360 public @RunningAppProcessInfo.Importance int getUidImportance(int uid) { 3361 try { 3362 int procState = getService().getUidProcessState(uid, 3363 mContext.getOpPackageName()); 3364 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3365 } catch (RemoteException e) { 3366 throw e.rethrowFromSystemServer(); 3367 } 3368 } 3369 3370 /** 3371 * Callback to get reports about changes to the importance of a uid. Use with 3372 * {@link #addOnUidImportanceListener}. 3373 * @hide 3374 */ 3375 @SystemApi @TestApi 3376 public interface OnUidImportanceListener { 3377 /** 3378 * The importance if a given uid has changed. Will be one of the importance 3379 * values in {@link RunningAppProcessInfo}; 3380 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3381 * when the uid is no longer running at all. This callback will happen on a thread 3382 * from a thread pool, not the main UI thread. 3383 * @param uid The uid whose importance has changed. 3384 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3385 */ 3386 void onUidImportance(int uid, @RunningAppProcessInfo.Importance int importance); 3387 } 3388 3389 /** 3390 * Start monitoring changes to the imoportance of uids running in the system. 3391 * @param listener The listener callback that will receive change reports. 3392 * @param importanceCutpoint The level of importance in which the caller is interested 3393 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3394 * is used here, you will receive a call each time a uids importance transitions between 3395 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3396 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3397 * 3398 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3399 * permission to use this feature.</p> 3400 * 3401 * @throws IllegalArgumentException If the listener is already registered. 3402 * @throws SecurityException If the caller does not hold 3403 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3404 * @hide 3405 */ 3406 @SystemApi @TestApi 3407 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3408 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3409 @RunningAppProcessInfo.Importance int importanceCutpoint) { 3410 synchronized (this) { 3411 if (mImportanceListeners.containsKey(listener)) { 3412 throw new IllegalArgumentException("Listener already registered: " + listener); 3413 } 3414 // TODO: implement the cut point in the system process to avoid IPCs. 3415 UidObserver observer = new UidObserver(listener, mContext); 3416 try { 3417 getService().registerUidObserver(observer, 3418 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3419 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3420 mContext.getOpPackageName()); 3421 } catch (RemoteException e) { 3422 throw e.rethrowFromSystemServer(); 3423 } 3424 mImportanceListeners.put(listener, observer); 3425 } 3426 } 3427 3428 /** 3429 * Remove an importance listener that was previously registered with 3430 * {@link #addOnUidImportanceListener}. 3431 * 3432 * @throws IllegalArgumentException If the listener is not registered. 3433 * @hide 3434 */ 3435 @SystemApi @TestApi 3436 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3437 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3438 synchronized (this) { 3439 UidObserver observer = mImportanceListeners.remove(listener); 3440 if (observer == null) { 3441 throw new IllegalArgumentException("Listener not registered: " + listener); 3442 } 3443 try { 3444 getService().unregisterUidObserver(observer); 3445 } catch (RemoteException e) { 3446 throw e.rethrowFromSystemServer(); 3447 } 3448 } 3449 } 3450 3451 /** 3452 * Return global memory state information for the calling process. This 3453 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3454 * only fields that will be filled in are 3455 * {@link RunningAppProcessInfo#pid}, 3456 * {@link RunningAppProcessInfo#uid}, 3457 * {@link RunningAppProcessInfo#lastTrimLevel}, 3458 * {@link RunningAppProcessInfo#importance}, 3459 * {@link RunningAppProcessInfo#lru}, and 3460 * {@link RunningAppProcessInfo#importanceReasonCode}. 3461 */ 3462 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3463 try { 3464 getService().getMyMemoryState(outState); 3465 } catch (RemoteException e) { 3466 throw e.rethrowFromSystemServer(); 3467 } 3468 } 3469 3470 /** 3471 * Return information about the memory usage of one or more processes. 3472 * 3473 * <p><b>Note: this method is only intended for debugging or building 3474 * a user-facing process management UI.</b></p> 3475 * 3476 * @param pids The pids of the processes whose memory usage is to be 3477 * retrieved. 3478 * @return Returns an array of memory information, one for each 3479 * requested pid. 3480 */ 3481 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3482 try { 3483 return getService().getProcessMemoryInfo(pids); 3484 } catch (RemoteException e) { 3485 throw e.rethrowFromSystemServer(); 3486 } 3487 } 3488 3489 /** 3490 * @deprecated This is now just a wrapper for 3491 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3492 * is no longer available to applications because it allows them to 3493 * break other applications by removing their alarms, stopping their 3494 * services, etc. 3495 */ 3496 @Deprecated 3497 public void restartPackage(String packageName) { 3498 killBackgroundProcesses(packageName); 3499 } 3500 3501 /** 3502 * Have the system immediately kill all background processes associated 3503 * with the given package. This is the same as the kernel killing those 3504 * processes to reclaim memory; the system will take care of restarting 3505 * these processes in the future as needed. 3506 * 3507 * @param packageName The name of the package whose processes are to 3508 * be killed. 3509 */ 3510 @RequiresPermission(Manifest.permission.KILL_BACKGROUND_PROCESSES) 3511 public void killBackgroundProcesses(String packageName) { 3512 try { 3513 getService().killBackgroundProcesses(packageName, 3514 UserHandle.myUserId()); 3515 } catch (RemoteException e) { 3516 throw e.rethrowFromSystemServer(); 3517 } 3518 } 3519 3520 /** 3521 * Kills the specified UID. 3522 * @param uid The UID to kill. 3523 * @param reason The reason for the kill. 3524 * 3525 * @hide 3526 */ 3527 @SystemApi 3528 @RequiresPermission(Manifest.permission.KILL_UID) 3529 public void killUid(int uid, String reason) { 3530 try { 3531 getService().killUid(UserHandle.getAppId(uid), 3532 UserHandle.getUserId(uid), reason); 3533 } catch (RemoteException e) { 3534 throw e.rethrowFromSystemServer(); 3535 } 3536 } 3537 3538 /** 3539 * Have the system perform a force stop of everything associated with 3540 * the given application package. All processes that share its uid 3541 * will be killed, all services it has running stopped, all activities 3542 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3543 * broadcast will be sent, so that any of its registered alarms can 3544 * be stopped, notifications removed, etc. 3545 * 3546 * <p>You must hold the permission 3547 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3548 * call this method. 3549 * 3550 * @param packageName The name of the package to be stopped. 3551 * @param userId The user for which the running package is to be stopped. 3552 * 3553 * @hide This is not available to third party applications due to 3554 * it allowing them to break other applications by stopping their 3555 * services, removing their alarms, etc. 3556 */ 3557 public void forceStopPackageAsUser(String packageName, int userId) { 3558 try { 3559 getService().forceStopPackage(packageName, userId); 3560 } catch (RemoteException e) { 3561 throw e.rethrowFromSystemServer(); 3562 } 3563 } 3564 3565 /** 3566 * @see #forceStopPackageAsUser(String, int) 3567 * @hide 3568 */ 3569 @SystemApi 3570 @RequiresPermission(Manifest.permission.FORCE_STOP_PACKAGES) 3571 public void forceStopPackage(String packageName) { 3572 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3573 } 3574 3575 /** 3576 * Get the device configuration attributes. 3577 */ 3578 public ConfigurationInfo getDeviceConfigurationInfo() { 3579 try { 3580 return getService().getDeviceConfigurationInfo(); 3581 } catch (RemoteException e) { 3582 throw e.rethrowFromSystemServer(); 3583 } 3584 } 3585 3586 /** 3587 * Get the preferred density of icons for the launcher. This is used when 3588 * custom drawables are created (e.g., for shortcuts). 3589 * 3590 * @return density in terms of DPI 3591 */ 3592 public int getLauncherLargeIconDensity() { 3593 final Resources res = mContext.getResources(); 3594 final int density = res.getDisplayMetrics().densityDpi; 3595 final int sw = res.getConfiguration().smallestScreenWidthDp; 3596 3597 if (sw < 600) { 3598 // Smaller than approx 7" tablets, use the regular icon size. 3599 return density; 3600 } 3601 3602 switch (density) { 3603 case DisplayMetrics.DENSITY_LOW: 3604 return DisplayMetrics.DENSITY_MEDIUM; 3605 case DisplayMetrics.DENSITY_MEDIUM: 3606 return DisplayMetrics.DENSITY_HIGH; 3607 case DisplayMetrics.DENSITY_TV: 3608 return DisplayMetrics.DENSITY_XHIGH; 3609 case DisplayMetrics.DENSITY_HIGH: 3610 return DisplayMetrics.DENSITY_XHIGH; 3611 case DisplayMetrics.DENSITY_XHIGH: 3612 return DisplayMetrics.DENSITY_XXHIGH; 3613 case DisplayMetrics.DENSITY_XXHIGH: 3614 return DisplayMetrics.DENSITY_XHIGH * 2; 3615 default: 3616 // The density is some abnormal value. Return some other 3617 // abnormal value that is a reasonable scaling of it. 3618 return (int)((density*1.5f)+.5f); 3619 } 3620 } 3621 3622 /** 3623 * Get the preferred launcher icon size. This is used when custom drawables 3624 * are created (e.g., for shortcuts). 3625 * 3626 * @return dimensions of square icons in terms of pixels 3627 */ 3628 public int getLauncherLargeIconSize() { 3629 return getLauncherLargeIconSizeInner(mContext); 3630 } 3631 3632 static int getLauncherLargeIconSizeInner(Context context) { 3633 final Resources res = context.getResources(); 3634 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3635 final int sw = res.getConfiguration().smallestScreenWidthDp; 3636 3637 if (sw < 600) { 3638 // Smaller than approx 7" tablets, use the regular icon size. 3639 return size; 3640 } 3641 3642 final int density = res.getDisplayMetrics().densityDpi; 3643 3644 switch (density) { 3645 case DisplayMetrics.DENSITY_LOW: 3646 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3647 case DisplayMetrics.DENSITY_MEDIUM: 3648 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3649 case DisplayMetrics.DENSITY_TV: 3650 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3651 case DisplayMetrics.DENSITY_HIGH: 3652 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3653 case DisplayMetrics.DENSITY_XHIGH: 3654 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3655 case DisplayMetrics.DENSITY_XXHIGH: 3656 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3657 default: 3658 // The density is some abnormal value. Return some other 3659 // abnormal value that is a reasonable scaling of it. 3660 return (int)((size*1.5f) + .5f); 3661 } 3662 } 3663 3664 /** 3665 * Returns "true" if the user interface is currently being messed with 3666 * by a monkey. 3667 */ 3668 public static boolean isUserAMonkey() { 3669 try { 3670 return getService().isUserAMonkey(); 3671 } catch (RemoteException e) { 3672 throw e.rethrowFromSystemServer(); 3673 } 3674 } 3675 3676 /** 3677 * Returns "true" if device is running in a test harness. 3678 */ 3679 public static boolean isRunningInTestHarness() { 3680 return SystemProperties.getBoolean("ro.test_harness", false); 3681 } 3682 3683 /** 3684 * Returns the launch count of each installed package. 3685 * 3686 * @hide 3687 */ 3688 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3689 try { 3690 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3691 ServiceManager.getService("usagestats")); 3692 if (usageStatsService == null) { 3693 return new HashMap<String, Integer>(); 3694 } 3695 3696 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3697 ActivityThread.currentPackageName()); 3698 if (allPkgUsageStats == null) { 3699 return new HashMap<String, Integer>(); 3700 } 3701 3702 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3703 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3704 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3705 } 3706 3707 return launchCounts; 3708 } catch (RemoteException e) { 3709 Log.w(TAG, "Could not query launch counts", e); 3710 return new HashMap<String, Integer>(); 3711 } 3712 }*/ 3713 3714 /** @hide */ 3715 public static int checkComponentPermission(String permission, int uid, 3716 int owningUid, boolean exported) { 3717 // Root, system server get to do everything. 3718 final int appId = UserHandle.getAppId(uid); 3719 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3720 return PackageManager.PERMISSION_GRANTED; 3721 } 3722 // Isolated processes don't get any permissions. 3723 if (UserHandle.isIsolated(uid)) { 3724 return PackageManager.PERMISSION_DENIED; 3725 } 3726 // If there is a uid that owns whatever is being accessed, it has 3727 // blanket access to it regardless of the permissions it requires. 3728 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3729 return PackageManager.PERMISSION_GRANTED; 3730 } 3731 // If the target is not exported, then nobody else can get to it. 3732 if (!exported) { 3733 /* 3734 RuntimeException here = new RuntimeException("here"); 3735 here.fillInStackTrace(); 3736 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3737 here); 3738 */ 3739 return PackageManager.PERMISSION_DENIED; 3740 } 3741 if (permission == null) { 3742 return PackageManager.PERMISSION_GRANTED; 3743 } 3744 try { 3745 return AppGlobals.getPackageManager() 3746 .checkUidPermission(permission, uid); 3747 } catch (RemoteException e) { 3748 throw e.rethrowFromSystemServer(); 3749 } 3750 } 3751 3752 /** @hide */ 3753 public static int checkUidPermission(String permission, int uid) { 3754 try { 3755 return AppGlobals.getPackageManager() 3756 .checkUidPermission(permission, uid); 3757 } catch (RemoteException e) { 3758 throw e.rethrowFromSystemServer(); 3759 } 3760 } 3761 3762 /** 3763 * @hide 3764 * Helper for dealing with incoming user arguments to system service calls. 3765 * Takes care of checking permissions and converting USER_CURRENT to the 3766 * actual current user. 3767 * 3768 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3769 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3770 * @param userId The user id argument supplied by the caller -- this is the user 3771 * they want to run as. 3772 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3773 * to get a USER_ALL returned and deal with it correctly. If false, 3774 * an exception will be thrown if USER_ALL is supplied. 3775 * @param requireFull If true, the caller must hold 3776 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3777 * different user than their current process; otherwise they must hold 3778 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3779 * @param name Optional textual name of the incoming call; only for generating error messages. 3780 * @param callerPackage Optional package name of caller; only for error messages. 3781 * 3782 * @return Returns the user ID that the call should run as. Will always be a concrete 3783 * user number, unless <var>allowAll</var> is true in which case it could also be 3784 * USER_ALL. 3785 */ 3786 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3787 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3788 if (UserHandle.getUserId(callingUid) == userId) { 3789 return userId; 3790 } 3791 try { 3792 return getService().handleIncomingUser(callingPid, 3793 callingUid, userId, allowAll, requireFull, name, callerPackage); 3794 } catch (RemoteException e) { 3795 throw e.rethrowFromSystemServer(); 3796 } 3797 } 3798 3799 /** 3800 * Gets the userId of the current foreground user. Requires system permissions. 3801 * @hide 3802 */ 3803 @SystemApi 3804 @RequiresPermission(anyOf = { 3805 "android.permission.INTERACT_ACROSS_USERS", 3806 "android.permission.INTERACT_ACROSS_USERS_FULL" 3807 }) 3808 public static int getCurrentUser() { 3809 UserInfo ui; 3810 try { 3811 ui = getService().getCurrentUser(); 3812 return ui != null ? ui.id : 0; 3813 } catch (RemoteException e) { 3814 throw e.rethrowFromSystemServer(); 3815 } 3816 } 3817 3818 /** 3819 * @param userid the user's id. Zero indicates the default user. 3820 * @hide 3821 */ 3822 public boolean switchUser(int userid) { 3823 try { 3824 return getService().switchUser(userid); 3825 } catch (RemoteException e) { 3826 throw e.rethrowFromSystemServer(); 3827 } 3828 } 3829 3830 /** 3831 * Logs out current current foreground user by switching to the system user and stopping the 3832 * user being switched from. 3833 * @hide 3834 */ 3835 public static void logoutCurrentUser() { 3836 int currentUser = ActivityManager.getCurrentUser(); 3837 if (currentUser != UserHandle.USER_SYSTEM) { 3838 try { 3839 getService().switchUser(UserHandle.USER_SYSTEM); 3840 getService().stopUser(currentUser, /* force= */ false, null); 3841 } catch (RemoteException e) { 3842 e.rethrowFromSystemServer(); 3843 } 3844 } 3845 } 3846 3847 /** {@hide} */ 3848 public static final int FLAG_OR_STOPPED = 1 << 0; 3849 /** {@hide} */ 3850 public static final int FLAG_AND_LOCKED = 1 << 1; 3851 /** {@hide} */ 3852 public static final int FLAG_AND_UNLOCKED = 1 << 2; 3853 /** {@hide} */ 3854 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 3855 3856 /** 3857 * Return whether the given user is actively running. This means that 3858 * the user is in the "started" state, not "stopped" -- it is currently 3859 * allowed to run code through scheduled alarms, receiving broadcasts, 3860 * etc. A started user may be either the current foreground user or a 3861 * background user; the result here does not distinguish between the two. 3862 * @param userId the user's id. Zero indicates the default user. 3863 * @hide 3864 */ 3865 public boolean isUserRunning(int userId) { 3866 try { 3867 return getService().isUserRunning(userId, 0); 3868 } catch (RemoteException e) { 3869 throw e.rethrowFromSystemServer(); 3870 } 3871 } 3872 3873 /** {@hide} */ 3874 public boolean isVrModePackageEnabled(ComponentName component) { 3875 try { 3876 return getService().isVrModePackageEnabled(component); 3877 } catch (RemoteException e) { 3878 throw e.rethrowFromSystemServer(); 3879 } 3880 } 3881 3882 /** 3883 * Perform a system dump of various state associated with the given application 3884 * package name. This call blocks while the dump is being performed, so should 3885 * not be done on a UI thread. The data will be written to the given file 3886 * descriptor as text. 3887 * @param fd The file descriptor that the dump should be written to. The file 3888 * descriptor is <em>not</em> closed by this function; the caller continues to 3889 * own it. 3890 * @param packageName The name of the package that is to be dumped. 3891 */ 3892 @RequiresPermission(Manifest.permission.DUMP) 3893 public void dumpPackageState(FileDescriptor fd, String packageName) { 3894 dumpPackageStateStatic(fd, packageName); 3895 } 3896 3897 /** 3898 * @hide 3899 */ 3900 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 3901 FileOutputStream fout = new FileOutputStream(fd); 3902 PrintWriter pw = new FastPrintWriter(fout); 3903 dumpService(pw, fd, "package", new String[] { packageName }); 3904 pw.println(); 3905 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 3906 "-a", "package", packageName }); 3907 pw.println(); 3908 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 3909 pw.println(); 3910 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 3911 pw.println(); 3912 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 3913 pw.println(); 3914 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 3915 pw.flush(); 3916 } 3917 3918 /** 3919 * @hide 3920 */ 3921 public static boolean isSystemReady() { 3922 if (!sSystemReady) { 3923 if (ActivityThread.isSystem()) { 3924 sSystemReady = 3925 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 3926 } else { 3927 // Since this is being called from outside system server, system should be 3928 // ready by now. 3929 sSystemReady = true; 3930 } 3931 } 3932 return sSystemReady; 3933 } 3934 3935 /** 3936 * @hide 3937 */ 3938 public static void broadcastStickyIntent(Intent intent, int userId) { 3939 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 3940 } 3941 3942 /** 3943 * Convenience for sending a sticky broadcast. For internal use only. 3944 * 3945 * @hide 3946 */ 3947 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 3948 try { 3949 getService().broadcastIntent( 3950 null, intent, null, null, Activity.RESULT_OK, null, null, 3951 null /*permission*/, appOp, null, false, true, userId); 3952 } catch (RemoteException ex) { 3953 } 3954 } 3955 3956 /** 3957 * @hide 3958 */ 3959 public static void noteWakeupAlarm(PendingIntent ps, int sourceUid, String sourcePkg, 3960 String tag) { 3961 try { 3962 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, 3963 sourceUid, sourcePkg, tag); 3964 } catch (RemoteException ex) { 3965 } 3966 } 3967 3968 /** 3969 * @hide 3970 */ 3971 public static void noteAlarmStart(PendingIntent ps, int sourceUid, String tag) { 3972 try { 3973 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, sourceUid, tag); 3974 } catch (RemoteException ex) { 3975 } 3976 } 3977 3978 /** 3979 * @hide 3980 */ 3981 public static void noteAlarmFinish(PendingIntent ps, int sourceUid, String tag) { 3982 try { 3983 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, sourceUid, tag); 3984 } catch (RemoteException ex) { 3985 } 3986 } 3987 3988 /** 3989 * @hide 3990 */ 3991 public static IActivityManager getService() { 3992 return IActivityManagerSingleton.get(); 3993 } 3994 3995 private static final Singleton<IActivityManager> IActivityManagerSingleton = 3996 new Singleton<IActivityManager>() { 3997 @Override 3998 protected IActivityManager create() { 3999 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 4000 final IActivityManager am = IActivityManager.Stub.asInterface(b); 4001 return am; 4002 } 4003 }; 4004 4005 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 4006 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 4007 IBinder service = ServiceManager.checkService(name); 4008 if (service == null) { 4009 pw.println(" (Service not found)"); 4010 return; 4011 } 4012 TransferPipe tp = null; 4013 try { 4014 pw.flush(); 4015 tp = new TransferPipe(); 4016 tp.setBufferPrefix(" "); 4017 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 4018 tp.go(fd, 10000); 4019 } catch (Throwable e) { 4020 if (tp != null) { 4021 tp.kill(); 4022 } 4023 pw.println("Failure dumping service:"); 4024 e.printStackTrace(pw); 4025 } 4026 } 4027 4028 /** 4029 * Request that the system start watching for the calling process to exceed a pss 4030 * size as given here. Once called, the system will look for any occasions where it 4031 * sees the associated process with a larger pss size and, when this happens, automatically 4032 * pull a heap dump from it and allow the user to share the data. Note that this request 4033 * continues running even if the process is killed and restarted. To remove the watch, 4034 * use {@link #clearWatchHeapLimit()}. 4035 * 4036 * <p>This API only work if the calling process has been marked as 4037 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 4038 * (userdebug or eng) build.</p> 4039 * 4040 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 4041 * handle heap limit reports themselves.</p> 4042 * 4043 * @param pssSize The size in bytes to set the limit at. 4044 */ 4045 public void setWatchHeapLimit(long pssSize) { 4046 try { 4047 getService().setDumpHeapDebugLimit(null, 0, pssSize, 4048 mContext.getPackageName()); 4049 } catch (RemoteException e) { 4050 throw e.rethrowFromSystemServer(); 4051 } 4052 } 4053 4054 /** 4055 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 4056 * If your package has an activity handling this action, it will be launched with the 4057 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 4058 * match the activty must support this action and a MIME type of "*/*". 4059 */ 4060 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 4061 4062 /** 4063 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 4064 */ 4065 public void clearWatchHeapLimit() { 4066 try { 4067 getService().setDumpHeapDebugLimit(null, 0, 0, null); 4068 } catch (RemoteException e) { 4069 throw e.rethrowFromSystemServer(); 4070 } 4071 } 4072 4073 /** 4074 * Return whether currently in lock task mode. When in this mode 4075 * no new tasks can be created or switched to. 4076 * 4077 * @see Activity#startLockTask() 4078 * 4079 * @deprecated Use {@link #getLockTaskModeState} instead. 4080 */ 4081 @Deprecated 4082 public boolean isInLockTaskMode() { 4083 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 4084 } 4085 4086 /** 4087 * Return the current state of task locking. The three possible outcomes 4088 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 4089 * and {@link #LOCK_TASK_MODE_PINNED}. 4090 * 4091 * @see Activity#startLockTask() 4092 */ 4093 public int getLockTaskModeState() { 4094 try { 4095 return getService().getLockTaskModeState(); 4096 } catch (RemoteException e) { 4097 throw e.rethrowFromSystemServer(); 4098 } 4099 } 4100 4101 /** 4102 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 4103 * thread can be a VR thread in a process at a time, and that thread may be subject to 4104 * restrictions on the amount of time it can run. 4105 * 4106 * If persistent VR mode is set, whatever thread has been granted aggressive scheduling via this 4107 * method will return to normal operation, and calling this method will do nothing while 4108 * persistent VR mode is enabled. 4109 * 4110 * To reset the VR thread for an application, a tid of 0 can be passed. 4111 * 4112 * @see android.os.Process#myTid() 4113 * @param tid tid of the VR thread 4114 */ 4115 public static void setVrThread(int tid) { 4116 try { 4117 getService().setVrThread(tid); 4118 } catch (RemoteException e) { 4119 // pass 4120 } 4121 } 4122 4123 /** 4124 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads that persist 4125 * beyond a single process. Only one thread can be a 4126 * persistent VR thread at a time, and that thread may be subject to restrictions on the amount 4127 * of time it can run. Calling this method will disable aggressive scheduling for non-persistent 4128 * VR threads set via {@link #setVrThread}. If persistent VR mode is disabled then the 4129 * persistent VR thread loses its new scheduling priority; this method must be called again to 4130 * set the persistent thread. 4131 * 4132 * To reset the persistent VR thread, a tid of 0 can be passed. 4133 * 4134 * @see android.os.Process#myTid() 4135 * @param tid tid of the VR thread 4136 * @hide 4137 */ 4138 @RequiresPermission(Manifest.permission.RESTRICTED_VR_ACCESS) 4139 public static void setPersistentVrThread(int tid) { 4140 try { 4141 getService().setPersistentVrThread(tid); 4142 } catch (RemoteException e) { 4143 // pass 4144 } 4145 } 4146 4147 /** 4148 * The AppTask allows you to manage your own application's tasks. 4149 * See {@link android.app.ActivityManager#getAppTasks()} 4150 */ 4151 public static class AppTask { 4152 private IAppTask mAppTaskImpl; 4153 4154 /** @hide */ 4155 public AppTask(IAppTask task) { 4156 mAppTaskImpl = task; 4157 } 4158 4159 /** 4160 * Finishes all activities in this task and removes it from the recent tasks list. 4161 */ 4162 public void finishAndRemoveTask() { 4163 try { 4164 mAppTaskImpl.finishAndRemoveTask(); 4165 } catch (RemoteException e) { 4166 throw e.rethrowFromSystemServer(); 4167 } 4168 } 4169 4170 /** 4171 * Get the RecentTaskInfo associated with this task. 4172 * 4173 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 4174 */ 4175 public RecentTaskInfo getTaskInfo() { 4176 try { 4177 return mAppTaskImpl.getTaskInfo(); 4178 } catch (RemoteException e) { 4179 throw e.rethrowFromSystemServer(); 4180 } 4181 } 4182 4183 /** 4184 * Bring this task to the foreground. If it contains activities, they will be 4185 * brought to the foreground with it and their instances re-created if needed. 4186 * If it doesn't contain activities, the root activity of the task will be 4187 * re-launched. 4188 */ 4189 public void moveToFront() { 4190 try { 4191 mAppTaskImpl.moveToFront(); 4192 } catch (RemoteException e) { 4193 throw e.rethrowFromSystemServer(); 4194 } 4195 } 4196 4197 /** 4198 * Start an activity in this task. Brings the task to the foreground. If this task 4199 * is not currently active (that is, its id < 0), then a new activity for the given 4200 * Intent will be launched as the root of the task and the task brought to the 4201 * foreground. Otherwise, if this task is currently active and the Intent does not specify 4202 * an activity to launch in a new task, then a new activity for the given Intent will 4203 * be launched on top of the task and the task brought to the foreground. If this 4204 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 4205 * or would otherwise be launched in to a new task, then the activity not launched but 4206 * this task be brought to the foreground and a new intent delivered to the top 4207 * activity if appropriate. 4208 * 4209 * <p>In other words, you generally want to use an Intent here that does not specify 4210 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 4211 * and let the system do the right thing.</p> 4212 * 4213 * @param intent The Intent describing the new activity to be launched on the task. 4214 * @param options Optional launch options. 4215 * 4216 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 4217 */ 4218 public void startActivity(Context context, Intent intent, Bundle options) { 4219 ActivityThread thread = ActivityThread.currentActivityThread(); 4220 thread.getInstrumentation().execStartActivityFromAppTask(context, 4221 thread.getApplicationThread(), mAppTaskImpl, intent, options); 4222 } 4223 4224 /** 4225 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 4226 * Intent of this AppTask. 4227 * 4228 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 4229 * be set; otherwise, it will be cleared. 4230 */ 4231 public void setExcludeFromRecents(boolean exclude) { 4232 try { 4233 mAppTaskImpl.setExcludeFromRecents(exclude); 4234 } catch (RemoteException e) { 4235 throw e.rethrowFromSystemServer(); 4236 } 4237 } 4238 } 4239} 4240