ActivityManager.java revision 9be3a060827154617eed9132c64431af56d98eb4
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.app; 18 19import android.Manifest; 20import android.annotation.IntDef; 21import android.annotation.NonNull; 22import android.annotation.Nullable; 23import android.annotation.RequiresPermission; 24import android.annotation.SystemApi; 25import android.annotation.TestApi; 26import android.content.pm.ActivityInfo; 27import android.content.res.Configuration; 28import android.graphics.Canvas; 29import android.graphics.GraphicBuffer; 30import android.graphics.Matrix; 31import android.graphics.Point; 32import android.os.BatteryStats; 33import android.os.Build; 34import android.os.Build.VERSION_CODES; 35import android.os.IBinder; 36import android.os.ParcelFileDescriptor; 37 38import com.android.internal.app.procstats.ProcessStats; 39import com.android.internal.os.RoSystemProperties; 40import com.android.internal.os.TransferPipe; 41import com.android.internal.util.FastPrintWriter; 42import com.android.server.LocalServices; 43 44import android.content.ComponentName; 45import android.content.Context; 46import android.content.Intent; 47import android.content.UriPermission; 48import android.content.pm.ApplicationInfo; 49import android.content.pm.ConfigurationInfo; 50import android.content.pm.IPackageDataObserver; 51import android.content.pm.PackageManager; 52import android.content.pm.ParceledListSlice; 53import android.content.pm.UserInfo; 54import android.content.res.Resources; 55import android.graphics.Bitmap; 56import android.graphics.Color; 57import android.graphics.Rect; 58import android.os.Bundle; 59import android.os.Debug; 60import android.os.Handler; 61import android.os.Parcel; 62import android.os.Parcelable; 63import android.os.Process; 64import android.os.RemoteException; 65import android.os.ServiceManager; 66import android.os.SystemProperties; 67import android.os.UserHandle; 68import android.text.TextUtils; 69import android.util.ArrayMap; 70import android.util.DisplayMetrics; 71import android.util.Singleton; 72import android.util.Size; 73 74import org.xmlpull.v1.XmlSerializer; 75 76import java.io.FileDescriptor; 77import java.io.FileOutputStream; 78import java.io.IOException; 79import java.io.PrintWriter; 80import java.lang.annotation.Retention; 81import java.lang.annotation.RetentionPolicy; 82import java.util.ArrayList; 83import java.util.List; 84 85/** 86 * <p> 87 * This class gives information about, and interacts 88 * with, activities, services, and the containing 89 * process. 90 * </p> 91 * 92 * <p> 93 * A number of the methods in this class are for 94 * debugging or informational purposes and they should 95 * not be used to affect any runtime behavior of 96 * your app. These methods are called out as such in 97 * the method level documentation. 98 * </p> 99 * 100 *<p> 101 * Most application developers should not have the need to 102 * use this class, most of whose methods are for specialized 103 * use cases. However, a few methods are more broadly applicable. 104 * For instance, {@link android.app.ActivityManager#isLowRamDevice() isLowRamDevice()} 105 * enables your app to detect whether it is running on a low-memory device, 106 * and behave accordingly. 107 * {@link android.app.ActivityManager#clearApplicationUserData() clearApplicationUserData()} 108 * is for apps with reset-data functionality. 109 * </p> 110 * 111 * <p> 112 * In some special use cases, where an app interacts with 113 * its Task stack, the app may use the 114 * {@link android.app.ActivityManager.AppTask} and 115 * {@link android.app.ActivityManager.RecentTaskInfo} inner 116 * classes. However, in general, the methods in this class should 117 * be used for testing and debugging purposes only. 118 * </p> 119 */ 120public class ActivityManager { 121 private static String TAG = "ActivityManager"; 122 123 private static int gMaxRecentTasks = -1; 124 125 private final Context mContext; 126 127 private static volatile boolean sSystemReady = false; 128 129 130 private static final int FIRST_START_FATAL_ERROR_CODE = -100; 131 private static final int LAST_START_FATAL_ERROR_CODE = -1; 132 private static final int FIRST_START_SUCCESS_CODE = 0; 133 private static final int LAST_START_SUCCESS_CODE = 99; 134 private static final int FIRST_START_NON_FATAL_ERROR_CODE = 100; 135 private static final int LAST_START_NON_FATAL_ERROR_CODE = 199; 136 137 /** 138 * System property to enable task snapshots. 139 * @hide 140 */ 141 public final static boolean ENABLE_TASK_SNAPSHOTS; 142 143 static { 144 ENABLE_TASK_SNAPSHOTS = SystemProperties.getBoolean("persist.enable_task_snapshots", true); 145 } 146 147 static final class UidObserver extends IUidObserver.Stub { 148 final OnUidImportanceListener mListener; 149 final Context mContext; 150 151 UidObserver(OnUidImportanceListener listener, Context clientContext) { 152 mListener = listener; 153 mContext = clientContext; 154 } 155 156 @Override 157 public void onUidStateChanged(int uid, int procState, long procStateSeq) { 158 mListener.onUidImportance(uid, RunningAppProcessInfo.procStateToImportanceForClient( 159 procState, mContext)); 160 } 161 162 @Override 163 public void onUidGone(int uid, boolean disabled) { 164 mListener.onUidImportance(uid, RunningAppProcessInfo.IMPORTANCE_GONE); 165 } 166 167 @Override 168 public void onUidActive(int uid) { 169 } 170 171 @Override 172 public void onUidIdle(int uid, boolean disabled) { 173 } 174 } 175 176 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 IActivityManaqer.startActivity: the activity was started 305 * successfully as normal. 306 * @hide 307 */ 308 public static final int START_SUCCESS = FIRST_START_SUCCESS_CODE; 309 310 /** 311 * Result for IActivityManaqer.startActivity: the caller asked that the Intent not 312 * be executed if it is the recipient, and that is indeed the case. 313 * @hide 314 */ 315 public static final int START_RETURN_INTENT_TO_CALLER = FIRST_START_SUCCESS_CODE + 1; 316 317 /** 318 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 319 * a task was simply brought to the foreground. 320 * @hide 321 */ 322 public static final int START_TASK_TO_FRONT = FIRST_START_SUCCESS_CODE + 2; 323 324 /** 325 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 326 * the given Intent was given to the existing top activity. 327 * @hide 328 */ 329 public static final int START_DELIVERED_TO_TOP = FIRST_START_SUCCESS_CODE + 3; 330 331 /** 332 * Result for IActivityManaqer.startActivity: request was canceled because 333 * app switches are temporarily canceled to ensure the user's last request 334 * (such as pressing home) is performed. 335 * @hide 336 */ 337 public static final int START_SWITCHES_CANCELED = FIRST_START_NON_FATAL_ERROR_CODE; 338 339 /** 340 * Result for IActivityManaqer.startActivity: a new activity was attempted to be started 341 * while in Lock Task Mode. 342 * @hide 343 */ 344 public static final int START_RETURN_LOCK_TASK_MODE_VIOLATION = 345 FIRST_START_NON_FATAL_ERROR_CODE + 1; 346 347 /** 348 * Flag for IActivityManaqer.startActivity: do special start mode where 349 * a new activity is launched only if it is needed. 350 * @hide 351 */ 352 public static final int START_FLAG_ONLY_IF_NEEDED = 1<<0; 353 354 /** 355 * Flag for IActivityManaqer.startActivity: launch the app for 356 * debugging. 357 * @hide 358 */ 359 public static final int START_FLAG_DEBUG = 1<<1; 360 361 /** 362 * Flag for IActivityManaqer.startActivity: launch the app for 363 * allocation tracking. 364 * @hide 365 */ 366 public static final int START_FLAG_TRACK_ALLOCATION = 1<<2; 367 368 /** 369 * Flag for IActivityManaqer.startActivity: launch the app with 370 * native debugging support. 371 * @hide 372 */ 373 public static final int START_FLAG_NATIVE_DEBUGGING = 1<<3; 374 375 /** 376 * Result for IActivityManaqer.broadcastIntent: success! 377 * @hide 378 */ 379 public static final int BROADCAST_SUCCESS = 0; 380 381 /** 382 * Result for IActivityManaqer.broadcastIntent: attempt to broadcast 383 * a sticky intent without appropriate permission. 384 * @hide 385 */ 386 public static final int BROADCAST_STICKY_CANT_HAVE_PERMISSION = -1; 387 388 /** 389 * Result for IActivityManager.broadcastIntent: trying to send a broadcast 390 * to a stopped user. Fail. 391 * @hide 392 */ 393 public static final int BROADCAST_FAILED_USER_STOPPED = -2; 394 395 /** 396 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 397 * for a sendBroadcast operation. 398 * @hide 399 */ 400 public static final int INTENT_SENDER_BROADCAST = 1; 401 402 /** 403 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 404 * for a startActivity operation. 405 * @hide 406 */ 407 public static final int INTENT_SENDER_ACTIVITY = 2; 408 409 /** 410 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 411 * for an activity result operation. 412 * @hide 413 */ 414 public static final int INTENT_SENDER_ACTIVITY_RESULT = 3; 415 416 /** 417 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 418 * for a startService operation. 419 * @hide 420 */ 421 public static final int INTENT_SENDER_SERVICE = 4; 422 423 /** 424 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 425 * for a startForegroundService operation. 426 * @hide 427 */ 428 public static final int INTENT_SENDER_FOREGROUND_SERVICE = 5; 429 430 /** @hide User operation call: success! */ 431 public static final int USER_OP_SUCCESS = 0; 432 433 /** @hide User operation call: given user id is not known. */ 434 public static final int USER_OP_UNKNOWN_USER = -1; 435 436 /** @hide User operation call: given user id is the current user, can't be stopped. */ 437 public static final int USER_OP_IS_CURRENT = -2; 438 439 /** @hide User operation call: system user can't be stopped. */ 440 public static final int USER_OP_ERROR_IS_SYSTEM = -3; 441 442 /** @hide User operation call: one of related users cannot be stopped. */ 443 public static final int USER_OP_ERROR_RELATED_USERS_CANNOT_STOP = -4; 444 445 /** @hide Not a real process state. */ 446 public static final int PROCESS_STATE_UNKNOWN = -1; 447 448 /** @hide Process is a persistent system process. */ 449 public static final int PROCESS_STATE_PERSISTENT = 0; 450 451 /** @hide Process is a persistent system process and is doing UI. */ 452 public static final int PROCESS_STATE_PERSISTENT_UI = 1; 453 454 /** @hide Process is hosting the current top activities. Note that this covers 455 * all activities that are visible to the user. */ 456 public static final int PROCESS_STATE_TOP = 2; 457 458 /** @hide Process is hosting a foreground service due to a system binding. */ 459 public static final int PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 3; 460 461 /** @hide Process is hosting a foreground service. */ 462 public static final int PROCESS_STATE_FOREGROUND_SERVICE = 4; 463 464 /** @hide Same as {@link #PROCESS_STATE_TOP} but while device is sleeping. */ 465 public static final int PROCESS_STATE_TOP_SLEEPING = 5; 466 467 /** @hide Process is important to the user, and something they are aware of. */ 468 public static final int PROCESS_STATE_IMPORTANT_FOREGROUND = 6; 469 470 /** @hide Process is important to the user, but not something they are aware of. */ 471 public static final int PROCESS_STATE_IMPORTANT_BACKGROUND = 7; 472 473 /** @hide Process is in the background transient so we will try to keep running. */ 474 public static final int PROCESS_STATE_TRANSIENT_BACKGROUND = 8; 475 476 /** @hide Process is in the background running a backup/restore operation. */ 477 public static final int PROCESS_STATE_BACKUP = 9; 478 479 /** @hide Process is in the background, but it can't restore its state so we want 480 * to try to avoid killing it. */ 481 public static final int PROCESS_STATE_HEAVY_WEIGHT = 10; 482 483 /** @hide Process is in the background running a service. Unlike oom_adj, this level 484 * is used for both the normal running in background state and the executing 485 * operations state. */ 486 public static final int PROCESS_STATE_SERVICE = 11; 487 488 /** @hide Process is in the background running a receiver. Note that from the 489 * perspective of oom_adj receivers run at a higher foreground level, but for our 490 * prioritization here that is not necessary and putting them below services means 491 * many fewer changes in some process states as they receive broadcasts. */ 492 public static final int PROCESS_STATE_RECEIVER = 12; 493 494 /** @hide Process is in the background but hosts the home activity. */ 495 public static final int PROCESS_STATE_HOME = 13; 496 497 /** @hide Process is in the background but hosts the last shown activity. */ 498 public static final int PROCESS_STATE_LAST_ACTIVITY = 14; 499 500 /** @hide Process is being cached for later use and contains activities. */ 501 public static final int PROCESS_STATE_CACHED_ACTIVITY = 15; 502 503 /** @hide Process is being cached for later use and is a client of another cached 504 * process that contains activities. */ 505 public static final int PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 16; 506 507 /** @hide Process is being cached for later use and is empty. */ 508 public static final int PROCESS_STATE_CACHED_EMPTY = 17; 509 510 /** @hide Process does not exist. */ 511 public static final int PROCESS_STATE_NONEXISTENT = 18; 512 513 /** @hide The lowest process state number */ 514 public static final int MIN_PROCESS_STATE = PROCESS_STATE_PERSISTENT; 515 516 /** @hide The highest process state number */ 517 public static final int MAX_PROCESS_STATE = PROCESS_STATE_NONEXISTENT; 518 519 /** @hide Should this process state be considered a background state? */ 520 public static final boolean isProcStateBackground(int procState) { 521 return procState >= PROCESS_STATE_TRANSIENT_BACKGROUND; 522 } 523 524 /** @hide requestType for assist context: only basic information. */ 525 public static final int ASSIST_CONTEXT_BASIC = 0; 526 527 /** @hide requestType for assist context: generate full AssistStructure. */ 528 public static final int ASSIST_CONTEXT_FULL = 1; 529 530 /** @hide requestType for assist context: generate full AssistStructure for autofill. */ 531 public static final int ASSIST_CONTEXT_AUTOFILL = 2; 532 533 /** @hide Flag for registerUidObserver: report changes in process state. */ 534 public static final int UID_OBSERVER_PROCSTATE = 1<<0; 535 536 /** @hide Flag for registerUidObserver: report uid gone. */ 537 public static final int UID_OBSERVER_GONE = 1<<1; 538 539 /** @hide Flag for registerUidObserver: report uid has become idle. */ 540 public static final int UID_OBSERVER_IDLE = 1<<2; 541 542 /** @hide Flag for registerUidObserver: report uid has become active. */ 543 public static final int UID_OBSERVER_ACTIVE = 1<<3; 544 545 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: normal free-to-run operation. */ 546 public static final int APP_START_MODE_NORMAL = 0; 547 548 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later. */ 549 public static final int APP_START_MODE_DELAYED = 1; 550 551 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later, with 552 * rigid errors (throwing exception). */ 553 public static final int APP_START_MODE_DELAYED_RIGID = 2; 554 555 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: disable/cancel pending 556 * launches; this is the mode for ephemeral apps. */ 557 public static final int APP_START_MODE_DISABLED = 3; 558 559 /** 560 * Lock task mode is not active. 561 */ 562 public static final int LOCK_TASK_MODE_NONE = 0; 563 564 /** 565 * Full lock task mode is active. 566 */ 567 public static final int LOCK_TASK_MODE_LOCKED = 1; 568 569 /** 570 * App pinning mode is active. 571 */ 572 public static final int LOCK_TASK_MODE_PINNED = 2; 573 574 Point mAppTaskThumbnailSize; 575 576 /*package*/ ActivityManager(Context context, Handler handler) { 577 mContext = context; 578 } 579 580 /** 581 * Returns whether the launch was successful. 582 * @hide 583 */ 584 public static final boolean isStartResultSuccessful(int result) { 585 return FIRST_START_SUCCESS_CODE <= result && result <= LAST_START_SUCCESS_CODE; 586 } 587 588 /** 589 * Returns whether the launch result was a fatal error. 590 * @hide 591 */ 592 public static final boolean isStartResultFatalError(int result) { 593 return FIRST_START_FATAL_ERROR_CODE <= result && result <= LAST_START_FATAL_ERROR_CODE; 594 } 595 596 /** 597 * Screen compatibility mode: the application most always run in 598 * compatibility mode. 599 * @hide 600 */ 601 public static final int COMPAT_MODE_ALWAYS = -1; 602 603 /** 604 * Screen compatibility mode: the application can never run in 605 * compatibility mode. 606 * @hide 607 */ 608 public static final int COMPAT_MODE_NEVER = -2; 609 610 /** 611 * Screen compatibility mode: unknown. 612 * @hide 613 */ 614 public static final int COMPAT_MODE_UNKNOWN = -3; 615 616 /** 617 * Screen compatibility mode: the application currently has compatibility 618 * mode disabled. 619 * @hide 620 */ 621 public static final int COMPAT_MODE_DISABLED = 0; 622 623 /** 624 * Screen compatibility mode: the application currently has compatibility 625 * mode enabled. 626 * @hide 627 */ 628 public static final int COMPAT_MODE_ENABLED = 1; 629 630 /** 631 * Screen compatibility mode: request to toggle the application's 632 * compatibility mode. 633 * @hide 634 */ 635 public static final int COMPAT_MODE_TOGGLE = 2; 636 637 /** @hide */ 638 public static class StackId { 639 /** Invalid stack ID. */ 640 public static final int INVALID_STACK_ID = -1; 641 642 /** First static stack ID. */ 643 public static final int FIRST_STATIC_STACK_ID = 0; 644 645 /** Home activity stack ID. */ 646 public static final int HOME_STACK_ID = FIRST_STATIC_STACK_ID; 647 648 /** ID of stack where fullscreen activities are normally launched into. */ 649 public static final int FULLSCREEN_WORKSPACE_STACK_ID = 1; 650 651 /** ID of stack where freeform/resized activities are normally launched into. */ 652 public static final int FREEFORM_WORKSPACE_STACK_ID = FULLSCREEN_WORKSPACE_STACK_ID + 1; 653 654 /** ID of stack that occupies a dedicated region of the screen. */ 655 public static final int DOCKED_STACK_ID = FREEFORM_WORKSPACE_STACK_ID + 1; 656 657 /** ID of stack that always on top (always visible) when it exist. */ 658 public static final int PINNED_STACK_ID = DOCKED_STACK_ID + 1; 659 660 /** ID of stack that contains the Recents activity. */ 661 public static final int RECENTS_STACK_ID = PINNED_STACK_ID + 1; 662 663 /** ID of stack that contains activities launched by the assistant. */ 664 public static final int ASSISTANT_STACK_ID = RECENTS_STACK_ID + 1; 665 666 /** Last static stack stack ID. */ 667 public static final int LAST_STATIC_STACK_ID = ASSISTANT_STACK_ID; 668 669 /** Start of ID range used by stacks that are created dynamically. */ 670 public static final int FIRST_DYNAMIC_STACK_ID = LAST_STATIC_STACK_ID + 1; 671 672 public static boolean isStaticStack(int stackId) { 673 return stackId >= FIRST_STATIC_STACK_ID && stackId <= LAST_STATIC_STACK_ID; 674 } 675 676 public static boolean isDynamicStack(int stackId) { 677 return stackId >= FIRST_DYNAMIC_STACK_ID; 678 } 679 680 /** 681 * Returns true if the activities contained in the input stack display a shadow around 682 * their border. 683 */ 684 public static boolean hasWindowShadow(int stackId) { 685 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 686 } 687 688 /** 689 * Returns true if the activities contained in the input stack display a decor view. 690 */ 691 public static boolean hasWindowDecor(int stackId) { 692 return stackId == FREEFORM_WORKSPACE_STACK_ID; 693 } 694 695 /** 696 * Returns true if the tasks contained in the stack can be resized independently of the 697 * stack. 698 */ 699 public static boolean isTaskResizeAllowed(int stackId) { 700 return stackId == FREEFORM_WORKSPACE_STACK_ID; 701 } 702 703 /** Returns true if the task bounds should persist across power cycles. */ 704 public static boolean persistTaskBounds(int stackId) { 705 return stackId == FREEFORM_WORKSPACE_STACK_ID; 706 } 707 708 /** 709 * Returns true if dynamic stacks are allowed to be visible behind the input stack. 710 */ 711 public static boolean isDynamicStacksVisibleBehindAllowed(int stackId) { 712 return stackId == PINNED_STACK_ID || stackId == ASSISTANT_STACK_ID; 713 } 714 715 /** 716 * Returns true if we try to maintain focus in the current stack when the top activity 717 * finishes. 718 */ 719 public static boolean keepFocusInStackIfPossible(int stackId) { 720 return stackId == FREEFORM_WORKSPACE_STACK_ID 721 || stackId == DOCKED_STACK_ID || stackId == PINNED_STACK_ID; 722 } 723 724 /** 725 * Returns true if Stack size is affected by the docked stack changing size. 726 */ 727 public static boolean isResizeableByDockedStack(int stackId) { 728 return isStaticStack(stackId) && stackId != DOCKED_STACK_ID 729 && stackId != PINNED_STACK_ID && stackId != ASSISTANT_STACK_ID; 730 } 731 732 /** 733 * Returns true if the size of tasks in the input stack are affected by the docked stack 734 * changing size. 735 */ 736 public static boolean isTaskResizeableByDockedStack(int stackId) { 737 return isStaticStack(stackId) && stackId != FREEFORM_WORKSPACE_STACK_ID 738 && stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID 739 && stackId != ASSISTANT_STACK_ID; 740 } 741 742 /** 743 * Returns true if the input stack is affected by drag resizing. 744 */ 745 public static boolean isStackAffectedByDragResizing(int stackId) { 746 return isStaticStack(stackId) && stackId != PINNED_STACK_ID 747 && stackId != ASSISTANT_STACK_ID; 748 } 749 750 /** 751 * Returns true if the windows of tasks being moved to the target stack from the source 752 * stack should be replaced, meaning that window manager will keep the old window around 753 * until the new is ready. 754 */ 755 public static boolean replaceWindowsOnTaskMove(int sourceStackId, int targetStackId) { 756 return sourceStackId == FREEFORM_WORKSPACE_STACK_ID 757 || targetStackId == FREEFORM_WORKSPACE_STACK_ID; 758 } 759 760 /** 761 * Return whether a stackId is a stack containing floating windows. Floating windows 762 * are laid out differently as they are allowed to extend past the display bounds 763 * without overscan insets. 764 */ 765 public static boolean tasksAreFloating(int stackId) { 766 return stackId == FREEFORM_WORKSPACE_STACK_ID 767 || stackId == PINNED_STACK_ID; 768 } 769 770 /** 771 * Return whether a stackId is a stack that be a backdrop to a translucent activity. These 772 * are generally fullscreen stacks. 773 */ 774 public static boolean isBackdropToTranslucentActivity(int stackId) { 775 return stackId == FULLSCREEN_WORKSPACE_STACK_ID 776 || stackId == ASSISTANT_STACK_ID; 777 } 778 779 /** 780 * Returns true if animation specs should be constructed for app transition that moves 781 * the task to the specified stack. 782 */ 783 public static boolean useAnimationSpecForAppTransition(int stackId) { 784 // TODO: INVALID_STACK_ID is also animated because we don't persist stack id's across 785 // reboots. 786 return stackId == FREEFORM_WORKSPACE_STACK_ID 787 || stackId == FULLSCREEN_WORKSPACE_STACK_ID 788 || stackId == ASSISTANT_STACK_ID 789 || stackId == DOCKED_STACK_ID 790 || stackId == INVALID_STACK_ID; 791 } 792 793 /** 794 * Returns true if the windows in the stack can receive input keys. 795 */ 796 public static boolean canReceiveKeys(int stackId) { 797 return stackId != PINNED_STACK_ID; 798 } 799 800 /** 801 * Returns true if the stack can be visible above lockscreen. 802 */ 803 public static boolean isAllowedOverLockscreen(int stackId) { 804 return stackId == HOME_STACK_ID || stackId == FULLSCREEN_WORKSPACE_STACK_ID || 805 stackId == ASSISTANT_STACK_ID; 806 } 807 808 /** 809 * Returns true if activities from stasks in the given {@param stackId} are allowed to 810 * enter picture-in-picture. 811 */ 812 public static boolean isAllowedToEnterPictureInPicture(int stackId) { 813 return stackId != HOME_STACK_ID && stackId != ASSISTANT_STACK_ID && 814 stackId != RECENTS_STACK_ID; 815 } 816 817 public static boolean isAlwaysOnTop(int stackId) { 818 return stackId == PINNED_STACK_ID; 819 } 820 821 /** 822 * Returns true if the top task in the task is allowed to return home when finished and 823 * there are other tasks in the stack. 824 */ 825 public static boolean allowTopTaskToReturnHome(int stackId) { 826 return stackId != PINNED_STACK_ID; 827 } 828 829 /** 830 * Returns true if the stack should be resized to match the bounds specified by 831 * {@link ActivityOptions#setLaunchBounds} when launching an activity into the stack. 832 */ 833 public static boolean resizeStackWithLaunchBounds(int stackId) { 834 return stackId == PINNED_STACK_ID; 835 } 836 837 /** 838 * Returns true if any visible windows belonging to apps in this stack should be kept on 839 * screen when the app is killed due to something like the low memory killer. 840 */ 841 public static boolean keepVisibleDeadAppWindowOnScreen(int stackId) { 842 return stackId != PINNED_STACK_ID; 843 } 844 845 /** 846 * Returns true if the backdrop on the client side should match the frame of the window. 847 * Returns false, if the backdrop should be fullscreen. 848 */ 849 public static boolean useWindowFrameForBackdrop(int stackId) { 850 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 851 } 852 853 /** 854 * Returns true if a window from the specified stack with {@param stackId} are normally 855 * fullscreen, i. e. they can become the top opaque fullscreen window, meaning that it 856 * controls system bars, lockscreen occluded/dismissing state, screen rotation animation, 857 * etc. 858 */ 859 public static boolean normallyFullscreenWindows(int stackId) { 860 return stackId != PINNED_STACK_ID && stackId != FREEFORM_WORKSPACE_STACK_ID 861 && stackId != DOCKED_STACK_ID; 862 } 863 864 /** 865 * Returns true if the input stack id should only be present on a device that supports 866 * multi-window mode. 867 * @see android.app.ActivityManager#supportsMultiWindow 868 */ 869 public static boolean isMultiWindowStack(int stackId) { 870 return stackId == PINNED_STACK_ID || stackId == FREEFORM_WORKSPACE_STACK_ID 871 || stackId == DOCKED_STACK_ID; 872 } 873 874 /** 875 * Returns true if the input {@param stackId} is HOME_STACK_ID or RECENTS_STACK_ID 876 */ 877 public static boolean isHomeOrRecentsStack(int stackId) { 878 return stackId == HOME_STACK_ID || stackId == RECENTS_STACK_ID; 879 } 880 881 /** 882 * Returns true if activities contained in this stack can request visible behind by 883 * calling {@link Activity#requestVisibleBehind}. 884 * 885 * @deprecated This method's functionality is no longer supported as of 886 * {@link android.os.Build.VERSION_CODES#O} and will be removed in a future release. 887 */ 888 @Deprecated 889 public static boolean activitiesCanRequestVisibleBehind(int stackId) { 890 return stackId == FULLSCREEN_WORKSPACE_STACK_ID || 891 stackId == ASSISTANT_STACK_ID; 892 } 893 894 /** 895 * Returns true if this stack may be scaled without resizing, and windows within may need 896 * to be configured as such. 897 */ 898 public static boolean windowsAreScaleable(int stackId) { 899 return stackId == PINNED_STACK_ID; 900 } 901 902 /** 903 * Returns true if windows in this stack should be given move animations by default. 904 */ 905 public static boolean hasMovementAnimations(int stackId) { 906 return stackId != PINNED_STACK_ID; 907 } 908 909 /** Returns true if the input stack and its content can affect the device orientation. */ 910 public static boolean canSpecifyOrientation(int stackId) { 911 return stackId == HOME_STACK_ID 912 || stackId == RECENTS_STACK_ID 913 || stackId == FULLSCREEN_WORKSPACE_STACK_ID 914 || stackId == ASSISTANT_STACK_ID 915 || isDynamicStack(stackId); 916 } 917 } 918 919 /** 920 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 921 * specifies the position of the created docked stack at the top half of the screen if 922 * in portrait mode or at the left half of the screen if in landscape mode. 923 * @hide 924 */ 925 public static final int DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT = 0; 926 927 /** 928 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 929 * specifies the position of the created docked stack at the bottom half of the screen if 930 * in portrait mode or at the right half of the screen if in landscape mode. 931 * @hide 932 */ 933 public static final int DOCKED_STACK_CREATE_MODE_BOTTOM_OR_RIGHT = 1; 934 935 /** 936 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 937 * that the resize doesn't need to preserve the window, and can be skipped if bounds 938 * is unchanged. This mode is used by window manager in most cases. 939 * @hide 940 */ 941 public static final int RESIZE_MODE_SYSTEM = 0; 942 943 /** 944 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 945 * that the resize should preserve the window if possible. 946 * @hide 947 */ 948 public static final int RESIZE_MODE_PRESERVE_WINDOW = (0x1 << 0); 949 950 /** 951 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 952 * that the resize should be performed even if the bounds appears unchanged. 953 * @hide 954 */ 955 public static final int RESIZE_MODE_FORCED = (0x1 << 1); 956 957 /** 958 * Input parameter to {@link android.app.IActivityManager#resizeTask} used by window 959 * manager during a screen rotation. 960 * @hide 961 */ 962 public static final int RESIZE_MODE_SYSTEM_SCREEN_ROTATION = RESIZE_MODE_PRESERVE_WINDOW; 963 964 /** 965 * Input parameter to {@link android.app.IActivityManager#resizeTask} used when the 966 * resize is due to a drag action. 967 * @hide 968 */ 969 public static final int RESIZE_MODE_USER = RESIZE_MODE_PRESERVE_WINDOW; 970 971 /** 972 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 973 * that the resize should preserve the window if possible, and should not be skipped 974 * even if the bounds is unchanged. Usually used to force a resizing when a drag action 975 * is ending. 976 * @hide 977 */ 978 public static final int RESIZE_MODE_USER_FORCED = 979 RESIZE_MODE_PRESERVE_WINDOW | RESIZE_MODE_FORCED; 980 981 /** @hide */ 982 public int getFrontActivityScreenCompatMode() { 983 try { 984 return getService().getFrontActivityScreenCompatMode(); 985 } catch (RemoteException e) { 986 throw e.rethrowFromSystemServer(); 987 } 988 } 989 990 /** @hide */ 991 public void setFrontActivityScreenCompatMode(int mode) { 992 try { 993 getService().setFrontActivityScreenCompatMode(mode); 994 } catch (RemoteException e) { 995 throw e.rethrowFromSystemServer(); 996 } 997 } 998 999 /** @hide */ 1000 public int getPackageScreenCompatMode(String packageName) { 1001 try { 1002 return getService().getPackageScreenCompatMode(packageName); 1003 } catch (RemoteException e) { 1004 throw e.rethrowFromSystemServer(); 1005 } 1006 } 1007 1008 /** @hide */ 1009 public void setPackageScreenCompatMode(String packageName, int mode) { 1010 try { 1011 getService().setPackageScreenCompatMode(packageName, mode); 1012 } catch (RemoteException e) { 1013 throw e.rethrowFromSystemServer(); 1014 } 1015 } 1016 1017 /** @hide */ 1018 public boolean getPackageAskScreenCompat(String packageName) { 1019 try { 1020 return getService().getPackageAskScreenCompat(packageName); 1021 } catch (RemoteException e) { 1022 throw e.rethrowFromSystemServer(); 1023 } 1024 } 1025 1026 /** @hide */ 1027 public void setPackageAskScreenCompat(String packageName, boolean ask) { 1028 try { 1029 getService().setPackageAskScreenCompat(packageName, ask); 1030 } catch (RemoteException e) { 1031 throw e.rethrowFromSystemServer(); 1032 } 1033 } 1034 1035 /** 1036 * Return the approximate per-application memory class of the current 1037 * device. This gives you an idea of how hard a memory limit you should 1038 * impose on your application to let the overall system work best. The 1039 * returned value is in megabytes; the baseline Android memory class is 1040 * 16 (which happens to be the Java heap limit of those devices); some 1041 * device with more memory may return 24 or even higher numbers. 1042 */ 1043 public int getMemoryClass() { 1044 return staticGetMemoryClass(); 1045 } 1046 1047 /** @hide */ 1048 static public int staticGetMemoryClass() { 1049 // Really brain dead right now -- just take this from the configured 1050 // vm heap size, and assume it is in megabytes and thus ends with "m". 1051 String vmHeapSize = SystemProperties.get("dalvik.vm.heapgrowthlimit", ""); 1052 if (vmHeapSize != null && !"".equals(vmHeapSize)) { 1053 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1)); 1054 } 1055 return staticGetLargeMemoryClass(); 1056 } 1057 1058 /** 1059 * Return the approximate per-application memory class of the current 1060 * device when an application is running with a large heap. This is the 1061 * space available for memory-intensive applications; most applications 1062 * should not need this amount of memory, and should instead stay with the 1063 * {@link #getMemoryClass()} limit. The returned value is in megabytes. 1064 * This may be the same size as {@link #getMemoryClass()} on memory 1065 * constrained devices, or it may be significantly larger on devices with 1066 * a large amount of available RAM. 1067 * 1068 * <p>The is the size of the application's Dalvik heap if it has 1069 * specified <code>android:largeHeap="true"</code> in its manifest. 1070 */ 1071 public int getLargeMemoryClass() { 1072 return staticGetLargeMemoryClass(); 1073 } 1074 1075 /** @hide */ 1076 static public int staticGetLargeMemoryClass() { 1077 // Really brain dead right now -- just take this from the configured 1078 // vm heap size, and assume it is in megabytes and thus ends with "m". 1079 String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m"); 1080 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1)); 1081 } 1082 1083 /** 1084 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 1085 * is ultimately up to the device configuration, but currently it generally means 1086 * something in the class of a 512MB device with about a 800x480 or less screen. 1087 * This is mostly intended to be used by apps to determine whether they should turn 1088 * off certain features that require more RAM. 1089 */ 1090 public boolean isLowRamDevice() { 1091 return isLowRamDeviceStatic(); 1092 } 1093 1094 /** @hide */ 1095 public static boolean isLowRamDeviceStatic() { 1096 return RoSystemProperties.CONFIG_LOW_RAM; 1097 } 1098 1099 /** 1100 * Used by persistent processes to determine if they are running on a 1101 * higher-end device so should be okay using hardware drawing acceleration 1102 * (which tends to consume a lot more RAM). 1103 * @hide 1104 */ 1105 static public boolean isHighEndGfx() { 1106 return !isLowRamDeviceStatic() && 1107 !Resources.getSystem().getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 1108 } 1109 1110 /** 1111 * Return the maximum number of recents entries that we will maintain and show. 1112 * @hide 1113 */ 1114 static public int getMaxRecentTasksStatic() { 1115 if (gMaxRecentTasks < 0) { 1116 return gMaxRecentTasks = isLowRamDeviceStatic() ? 36 : 48; 1117 } 1118 return gMaxRecentTasks; 1119 } 1120 1121 /** 1122 * Return the default limit on the number of recents that an app can make. 1123 * @hide 1124 */ 1125 static public int getDefaultAppRecentsLimitStatic() { 1126 return getMaxRecentTasksStatic() / 6; 1127 } 1128 1129 /** 1130 * Return the maximum limit on the number of recents that an app can make. 1131 * @hide 1132 */ 1133 static public int getMaxAppRecentsLimitStatic() { 1134 return getMaxRecentTasksStatic() / 2; 1135 } 1136 1137 /** 1138 * Returns true if the system supports at least one form of multi-window. 1139 * E.g. freeform, split-screen, picture-in-picture. 1140 * @hide 1141 */ 1142 static public boolean supportsMultiWindow(Context context) { 1143 // On watches, multi-window is used to present essential system UI, and thus it must be 1144 // supported regardless of device memory characteristics. 1145 boolean isWatch = context.getPackageManager().hasSystemFeature( 1146 PackageManager.FEATURE_WATCH); 1147 return (!isLowRamDeviceStatic() || isWatch) 1148 && Resources.getSystem().getBoolean( 1149 com.android.internal.R.bool.config_supportsMultiWindow); 1150 } 1151 1152 /** 1153 * Returns true if the system supports split screen multi-window. 1154 * @hide 1155 */ 1156 static public boolean supportsSplitScreenMultiWindow(Context context) { 1157 return supportsMultiWindow(context) 1158 && Resources.getSystem().getBoolean( 1159 com.android.internal.R.bool.config_supportsSplitScreenMultiWindow); 1160 } 1161 1162 /** @removed */ 1163 @Deprecated 1164 public static int getMaxNumPictureInPictureActions() { 1165 return 3; 1166 } 1167 1168 /** 1169 * Information you can set and retrieve about the current activity within the recent task list. 1170 */ 1171 public static class TaskDescription implements Parcelable { 1172 /** @hide */ 1173 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 1174 private static final String ATTR_TASKDESCRIPTIONLABEL = 1175 ATTR_TASKDESCRIPTION_PREFIX + "label"; 1176 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 1177 ATTR_TASKDESCRIPTION_PREFIX + "color"; 1178 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 1179 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 1180 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 1181 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 1182 1183 private String mLabel; 1184 private Bitmap mIcon; 1185 private String mIconFilename; 1186 private int mColorPrimary; 1187 private int mColorBackground; 1188 private int mStatusBarColor; 1189 private int mNavigationBarColor; 1190 1191 /** 1192 * Creates the TaskDescription to the specified values. 1193 * 1194 * @param label A label and description of the current state of this task. 1195 * @param icon An icon that represents the current state of this task. 1196 * @param colorPrimary A color to override the theme's primary color. This color must be 1197 * opaque. 1198 */ 1199 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 1200 this(label, icon, null, colorPrimary, 0, 0, 0); 1201 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1202 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1203 } 1204 } 1205 1206 /** 1207 * Creates the TaskDescription to the specified values. 1208 * 1209 * @param label A label and description of the current state of this activity. 1210 * @param icon An icon that represents the current state of this activity. 1211 */ 1212 public TaskDescription(String label, Bitmap icon) { 1213 this(label, icon, null, 0, 0, 0, 0); 1214 } 1215 1216 /** 1217 * Creates the TaskDescription to the specified values. 1218 * 1219 * @param label A label and description of the current state of this activity. 1220 */ 1221 public TaskDescription(String label) { 1222 this(label, null, null, 0, 0, 0, 0); 1223 } 1224 1225 /** 1226 * Creates an empty TaskDescription. 1227 */ 1228 public TaskDescription() { 1229 this(null, null, null, 0, 0, 0, 0); 1230 } 1231 1232 /** @hide */ 1233 public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary, 1234 int colorBackground, int statusBarColor, int navigationBarColor) { 1235 mLabel = label; 1236 mIcon = icon; 1237 mIconFilename = iconFilename; 1238 mColorPrimary = colorPrimary; 1239 mColorBackground = colorBackground; 1240 mStatusBarColor = statusBarColor; 1241 mNavigationBarColor = navigationBarColor; 1242 } 1243 1244 /** 1245 * Creates a copy of another TaskDescription. 1246 */ 1247 public TaskDescription(TaskDescription td) { 1248 copyFrom(td); 1249 } 1250 1251 /** 1252 * Copies this the values from another TaskDescription. 1253 * @hide 1254 */ 1255 public void copyFrom(TaskDescription other) { 1256 mLabel = other.mLabel; 1257 mIcon = other.mIcon; 1258 mIconFilename = other.mIconFilename; 1259 mColorPrimary = other.mColorPrimary; 1260 mColorBackground = other.mColorBackground; 1261 mStatusBarColor = other.mStatusBarColor; 1262 mNavigationBarColor = other.mNavigationBarColor; 1263 } 1264 1265 /** 1266 * Copies this the values from another TaskDescription, but preserves the hidden fields 1267 * if they weren't set on {@code other} 1268 * @hide 1269 */ 1270 public void copyFromPreserveHiddenFields(TaskDescription other) { 1271 mLabel = other.mLabel; 1272 mIcon = other.mIcon; 1273 mIconFilename = other.mIconFilename; 1274 mColorPrimary = other.mColorPrimary; 1275 if (other.mColorBackground != 0) { 1276 mColorBackground = other.mColorBackground; 1277 } 1278 if (other.mStatusBarColor != 0) { 1279 mStatusBarColor = other.mStatusBarColor; 1280 } 1281 if (other.mNavigationBarColor != 0) { 1282 mNavigationBarColor = other.mNavigationBarColor; 1283 } 1284 } 1285 1286 private TaskDescription(Parcel source) { 1287 readFromParcel(source); 1288 } 1289 1290 /** 1291 * Sets the label for this task description. 1292 * @hide 1293 */ 1294 public void setLabel(String label) { 1295 mLabel = label; 1296 } 1297 1298 /** 1299 * Sets the primary color for this task description. 1300 * @hide 1301 */ 1302 public void setPrimaryColor(int primaryColor) { 1303 // Ensure that the given color is valid 1304 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1305 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1306 } 1307 mColorPrimary = primaryColor; 1308 } 1309 1310 /** 1311 * Sets the background color for this task description. 1312 * @hide 1313 */ 1314 public void setBackgroundColor(int backgroundColor) { 1315 // Ensure that the given color is valid 1316 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1317 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1318 } 1319 mColorBackground = backgroundColor; 1320 } 1321 1322 /** 1323 * @hide 1324 */ 1325 public void setStatusBarColor(int statusBarColor) { 1326 mStatusBarColor = statusBarColor; 1327 } 1328 1329 /** 1330 * @hide 1331 */ 1332 public void setNavigationBarColor(int navigationBarColor) { 1333 mNavigationBarColor = navigationBarColor; 1334 } 1335 1336 /** 1337 * Sets the icon for this task description. 1338 * @hide 1339 */ 1340 public void setIcon(Bitmap icon) { 1341 mIcon = icon; 1342 } 1343 1344 /** 1345 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1346 * bitmap. 1347 * @hide 1348 */ 1349 public void setIconFilename(String iconFilename) { 1350 mIconFilename = iconFilename; 1351 mIcon = null; 1352 } 1353 1354 /** 1355 * @return The label and description of the current state of this task. 1356 */ 1357 public String getLabel() { 1358 return mLabel; 1359 } 1360 1361 /** 1362 * @return The icon that represents the current state of this task. 1363 */ 1364 public Bitmap getIcon() { 1365 if (mIcon != null) { 1366 return mIcon; 1367 } 1368 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1369 } 1370 1371 /** @hide */ 1372 public String getIconFilename() { 1373 return mIconFilename; 1374 } 1375 1376 /** @hide */ 1377 public Bitmap getInMemoryIcon() { 1378 return mIcon; 1379 } 1380 1381 /** @hide */ 1382 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1383 if (iconFilename != null) { 1384 try { 1385 return getService().getTaskDescriptionIcon(iconFilename, 1386 userId); 1387 } catch (RemoteException e) { 1388 throw e.rethrowFromSystemServer(); 1389 } 1390 } 1391 return null; 1392 } 1393 1394 /** 1395 * @return The color override on the theme's primary color. 1396 */ 1397 public int getPrimaryColor() { 1398 return mColorPrimary; 1399 } 1400 1401 /** 1402 * @return The background color. 1403 * @hide 1404 */ 1405 public int getBackgroundColor() { 1406 return mColorBackground; 1407 } 1408 1409 /** 1410 * @hide 1411 */ 1412 public int getStatusBarColor() { 1413 return mStatusBarColor; 1414 } 1415 1416 /** 1417 * @hide 1418 */ 1419 public int getNavigationBarColor() { 1420 return mNavigationBarColor; 1421 } 1422 1423 /** @hide */ 1424 public void saveToXml(XmlSerializer out) throws IOException { 1425 if (mLabel != null) { 1426 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1427 } 1428 if (mColorPrimary != 0) { 1429 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1430 Integer.toHexString(mColorPrimary)); 1431 } 1432 if (mColorBackground != 0) { 1433 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1434 Integer.toHexString(mColorBackground)); 1435 } 1436 if (mIconFilename != null) { 1437 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 1438 } 1439 } 1440 1441 /** @hide */ 1442 public void restoreFromXml(String attrName, String attrValue) { 1443 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1444 setLabel(attrValue); 1445 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1446 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1447 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1448 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1449 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 1450 setIconFilename(attrValue); 1451 } 1452 } 1453 1454 @Override 1455 public int describeContents() { 1456 return 0; 1457 } 1458 1459 @Override 1460 public void writeToParcel(Parcel dest, int flags) { 1461 if (mLabel == null) { 1462 dest.writeInt(0); 1463 } else { 1464 dest.writeInt(1); 1465 dest.writeString(mLabel); 1466 } 1467 if (mIcon == null) { 1468 dest.writeInt(0); 1469 } else { 1470 dest.writeInt(1); 1471 mIcon.writeToParcel(dest, 0); 1472 } 1473 dest.writeInt(mColorPrimary); 1474 dest.writeInt(mColorBackground); 1475 dest.writeInt(mStatusBarColor); 1476 dest.writeInt(mNavigationBarColor); 1477 if (mIconFilename == null) { 1478 dest.writeInt(0); 1479 } else { 1480 dest.writeInt(1); 1481 dest.writeString(mIconFilename); 1482 } 1483 } 1484 1485 public void readFromParcel(Parcel source) { 1486 mLabel = source.readInt() > 0 ? source.readString() : null; 1487 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1488 mColorPrimary = source.readInt(); 1489 mColorBackground = source.readInt(); 1490 mStatusBarColor = source.readInt(); 1491 mNavigationBarColor = source.readInt(); 1492 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1493 } 1494 1495 public static final Creator<TaskDescription> CREATOR 1496 = new Creator<TaskDescription>() { 1497 public TaskDescription createFromParcel(Parcel source) { 1498 return new TaskDescription(source); 1499 } 1500 public TaskDescription[] newArray(int size) { 1501 return new TaskDescription[size]; 1502 } 1503 }; 1504 1505 @Override 1506 public String toString() { 1507 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1508 " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary + 1509 " colorBackground: " + mColorBackground + 1510 " statusBarColor: " + mColorBackground + 1511 " navigationBarColor: " + mNavigationBarColor; 1512 } 1513 } 1514 1515 /** 1516 * Information you can retrieve about tasks that the user has most recently 1517 * started or visited. 1518 */ 1519 public static class RecentTaskInfo implements Parcelable { 1520 /** 1521 * If this task is currently running, this is the identifier for it. 1522 * If it is not running, this will be -1. 1523 */ 1524 public int id; 1525 1526 /** 1527 * The true identifier of this task, valid even if it is not running. 1528 */ 1529 public int persistentId; 1530 1531 /** 1532 * The original Intent used to launch the task. You can use this 1533 * Intent to re-launch the task (if it is no longer running) or bring 1534 * the current task to the front. 1535 */ 1536 public Intent baseIntent; 1537 1538 /** 1539 * If this task was started from an alias, this is the actual 1540 * activity component that was initially started; the component of 1541 * the baseIntent in this case is the name of the actual activity 1542 * implementation that the alias referred to. Otherwise, this is null. 1543 */ 1544 public ComponentName origActivity; 1545 1546 /** 1547 * The actual activity component that started the task. 1548 * @hide 1549 */ 1550 @Nullable 1551 public ComponentName realActivity; 1552 1553 /** 1554 * Description of the task's last state. 1555 */ 1556 public CharSequence description; 1557 1558 /** 1559 * The id of the ActivityStack this Task was on most recently. 1560 * @hide 1561 */ 1562 public int stackId; 1563 1564 /** 1565 * The id of the user the task was running as. 1566 * @hide 1567 */ 1568 public int userId; 1569 1570 /** 1571 * The first time this task was active. 1572 * @hide 1573 */ 1574 public long firstActiveTime; 1575 1576 /** 1577 * The last time this task was active. 1578 * @hide 1579 */ 1580 public long lastActiveTime; 1581 1582 /** 1583 * The recent activity values for the highest activity in the stack to have set the values. 1584 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1585 */ 1586 public TaskDescription taskDescription; 1587 1588 /** 1589 * Task affiliation for grouping with other tasks. 1590 */ 1591 public int affiliatedTaskId; 1592 1593 /** 1594 * Task affiliation color of the source task with the affiliated task id. 1595 * 1596 * @hide 1597 */ 1598 public int affiliatedTaskColor; 1599 1600 /** 1601 * The component launched as the first activity in the task. 1602 * This can be considered the "application" of this task. 1603 */ 1604 public ComponentName baseActivity; 1605 1606 /** 1607 * The activity component at the top of the history stack of the task. 1608 * This is what the user is currently doing. 1609 */ 1610 public ComponentName topActivity; 1611 1612 /** 1613 * Number of activities in this task. 1614 */ 1615 public int numActivities; 1616 1617 /** 1618 * The bounds of the task. 1619 * @hide 1620 */ 1621 public Rect bounds; 1622 1623 /** 1624 * True if the task can go in the docked stack. 1625 * @hide 1626 */ 1627 public boolean supportsSplitScreenMultiWindow; 1628 1629 /** 1630 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1631 * @hide 1632 */ 1633 public int resizeMode; 1634 1635 public RecentTaskInfo() { 1636 } 1637 1638 @Override 1639 public int describeContents() { 1640 return 0; 1641 } 1642 1643 @Override 1644 public void writeToParcel(Parcel dest, int flags) { 1645 dest.writeInt(id); 1646 dest.writeInt(persistentId); 1647 if (baseIntent != null) { 1648 dest.writeInt(1); 1649 baseIntent.writeToParcel(dest, 0); 1650 } else { 1651 dest.writeInt(0); 1652 } 1653 ComponentName.writeToParcel(origActivity, dest); 1654 ComponentName.writeToParcel(realActivity, dest); 1655 TextUtils.writeToParcel(description, dest, 1656 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1657 if (taskDescription != null) { 1658 dest.writeInt(1); 1659 taskDescription.writeToParcel(dest, 0); 1660 } else { 1661 dest.writeInt(0); 1662 } 1663 dest.writeInt(stackId); 1664 dest.writeInt(userId); 1665 dest.writeLong(firstActiveTime); 1666 dest.writeLong(lastActiveTime); 1667 dest.writeInt(affiliatedTaskId); 1668 dest.writeInt(affiliatedTaskColor); 1669 ComponentName.writeToParcel(baseActivity, dest); 1670 ComponentName.writeToParcel(topActivity, dest); 1671 dest.writeInt(numActivities); 1672 if (bounds != null) { 1673 dest.writeInt(1); 1674 bounds.writeToParcel(dest, 0); 1675 } else { 1676 dest.writeInt(0); 1677 } 1678 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1679 dest.writeInt(resizeMode); 1680 } 1681 1682 public void readFromParcel(Parcel source) { 1683 id = source.readInt(); 1684 persistentId = source.readInt(); 1685 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1686 origActivity = ComponentName.readFromParcel(source); 1687 realActivity = ComponentName.readFromParcel(source); 1688 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1689 taskDescription = source.readInt() > 0 ? 1690 TaskDescription.CREATOR.createFromParcel(source) : null; 1691 stackId = source.readInt(); 1692 userId = source.readInt(); 1693 firstActiveTime = source.readLong(); 1694 lastActiveTime = source.readLong(); 1695 affiliatedTaskId = source.readInt(); 1696 affiliatedTaskColor = source.readInt(); 1697 baseActivity = ComponentName.readFromParcel(source); 1698 topActivity = ComponentName.readFromParcel(source); 1699 numActivities = source.readInt(); 1700 bounds = source.readInt() > 0 ? 1701 Rect.CREATOR.createFromParcel(source) : null; 1702 supportsSplitScreenMultiWindow = source.readInt() == 1; 1703 resizeMode = source.readInt(); 1704 } 1705 1706 public static final Creator<RecentTaskInfo> CREATOR 1707 = new Creator<RecentTaskInfo>() { 1708 public RecentTaskInfo createFromParcel(Parcel source) { 1709 return new RecentTaskInfo(source); 1710 } 1711 public RecentTaskInfo[] newArray(int size) { 1712 return new RecentTaskInfo[size]; 1713 } 1714 }; 1715 1716 private RecentTaskInfo(Parcel source) { 1717 readFromParcel(source); 1718 } 1719 } 1720 1721 /** 1722 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1723 * that have set their 1724 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1725 */ 1726 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1727 1728 /** 1729 * Provides a list that does not contain any 1730 * recent tasks that currently are not available to the user. 1731 */ 1732 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1733 1734 /** 1735 * Provides a list that contains recent tasks for all 1736 * profiles of a user. 1737 * @hide 1738 */ 1739 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1740 1741 /** 1742 * Ignores all tasks that are on the home stack. 1743 * @hide 1744 */ 1745 public static final int RECENT_IGNORE_HOME_AND_RECENTS_STACK_TASKS = 0x0008; 1746 1747 /** 1748 * Ignores the top task in the docked stack. 1749 * @hide 1750 */ 1751 public static final int RECENT_INGORE_DOCKED_STACK_TOP_TASK = 0x0010; 1752 1753 /** 1754 * Ignores all tasks that are on the pinned stack. 1755 * @hide 1756 */ 1757 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1758 1759 /** 1760 * <p></p>Return a list of the tasks that the user has recently launched, with 1761 * the most recent being first and older ones after in order. 1762 * 1763 * <p><b>Note: this method is only intended for debugging and presenting 1764 * task management user interfaces</b>. This should never be used for 1765 * core logic in an application, such as deciding between different 1766 * behaviors based on the information found here. Such uses are 1767 * <em>not</em> supported, and will likely break in the future. For 1768 * example, if multiple applications can be actively running at the 1769 * same time, assumptions made about the meaning of the data here for 1770 * purposes of control flow will be incorrect.</p> 1771 * 1772 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1773 * no longer available to third party applications: the introduction of 1774 * document-centric recents means 1775 * it can leak personal information to the caller. For backwards compatibility, 1776 * it will still return a small subset of its data: at least the caller's 1777 * own tasks (though see {@link #getAppTasks()} for the correct supported 1778 * way to retrieve that information), and possibly some other tasks 1779 * such as home that are known to not be sensitive. 1780 * 1781 * @param maxNum The maximum number of entries to return in the list. The 1782 * actual number returned may be smaller, depending on how many tasks the 1783 * user has started and the maximum number the system can remember. 1784 * @param flags Information about what to return. May be any combination 1785 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1786 * 1787 * @return Returns a list of RecentTaskInfo records describing each of 1788 * the recent tasks. 1789 */ 1790 @Deprecated 1791 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1792 throws SecurityException { 1793 try { 1794 return getService().getRecentTasks(maxNum, 1795 flags, UserHandle.myUserId()).getList(); 1796 } catch (RemoteException e) { 1797 throw e.rethrowFromSystemServer(); 1798 } 1799 } 1800 1801 /** 1802 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1803 * specific user. It requires holding 1804 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1805 * @param maxNum The maximum number of entries to return in the list. The 1806 * actual number returned may be smaller, depending on how many tasks the 1807 * user has started and the maximum number the system can remember. 1808 * @param flags Information about what to return. May be any combination 1809 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1810 * 1811 * @return Returns a list of RecentTaskInfo records describing each of 1812 * the recent tasks. Most recently activated tasks go first. 1813 * 1814 * @hide 1815 */ 1816 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1817 throws SecurityException { 1818 try { 1819 return getService().getRecentTasks(maxNum, 1820 flags, userId).getList(); 1821 } catch (RemoteException e) { 1822 throw e.rethrowFromSystemServer(); 1823 } 1824 } 1825 1826 /** 1827 * Information you can retrieve about a particular task that is currently 1828 * "running" in the system. Note that a running task does not mean the 1829 * given task actually has a process it is actively running in; it simply 1830 * means that the user has gone to it and never closed it, but currently 1831 * the system may have killed its process and is only holding on to its 1832 * last state in order to restart it when the user returns. 1833 */ 1834 public static class RunningTaskInfo implements Parcelable { 1835 /** 1836 * A unique identifier for this task. 1837 */ 1838 public int id; 1839 1840 /** 1841 * The stack that currently contains this task. 1842 * @hide 1843 */ 1844 public int stackId; 1845 1846 /** 1847 * The component launched as the first activity in the task. This can 1848 * be considered the "application" of this task. 1849 */ 1850 public ComponentName baseActivity; 1851 1852 /** 1853 * The activity component at the top of the history stack of the task. 1854 * This is what the user is currently doing. 1855 */ 1856 public ComponentName topActivity; 1857 1858 /** 1859 * Thumbnail representation of the task's current state. Currently 1860 * always null. 1861 */ 1862 public Bitmap thumbnail; 1863 1864 /** 1865 * Description of the task's current state. 1866 */ 1867 public CharSequence description; 1868 1869 /** 1870 * Number of activities in this task. 1871 */ 1872 public int numActivities; 1873 1874 /** 1875 * Number of activities that are currently running (not stopped 1876 * and persisted) in this task. 1877 */ 1878 public int numRunning; 1879 1880 /** 1881 * Last time task was run. For sorting. 1882 * @hide 1883 */ 1884 public long lastActiveTime; 1885 1886 /** 1887 * True if the task can go in the docked stack. 1888 * @hide 1889 */ 1890 public boolean supportsSplitScreenMultiWindow; 1891 1892 /** 1893 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1894 * @hide 1895 */ 1896 public int resizeMode; 1897 1898 public RunningTaskInfo() { 1899 } 1900 1901 public int describeContents() { 1902 return 0; 1903 } 1904 1905 public void writeToParcel(Parcel dest, int flags) { 1906 dest.writeInt(id); 1907 dest.writeInt(stackId); 1908 ComponentName.writeToParcel(baseActivity, dest); 1909 ComponentName.writeToParcel(topActivity, dest); 1910 if (thumbnail != null) { 1911 dest.writeInt(1); 1912 thumbnail.writeToParcel(dest, 0); 1913 } else { 1914 dest.writeInt(0); 1915 } 1916 TextUtils.writeToParcel(description, dest, 1917 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1918 dest.writeInt(numActivities); 1919 dest.writeInt(numRunning); 1920 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1921 dest.writeInt(resizeMode); 1922 } 1923 1924 public void readFromParcel(Parcel source) { 1925 id = source.readInt(); 1926 stackId = source.readInt(); 1927 baseActivity = ComponentName.readFromParcel(source); 1928 topActivity = ComponentName.readFromParcel(source); 1929 if (source.readInt() != 0) { 1930 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1931 } else { 1932 thumbnail = null; 1933 } 1934 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1935 numActivities = source.readInt(); 1936 numRunning = source.readInt(); 1937 supportsSplitScreenMultiWindow = source.readInt() != 0; 1938 resizeMode = source.readInt(); 1939 } 1940 1941 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1942 public RunningTaskInfo createFromParcel(Parcel source) { 1943 return new RunningTaskInfo(source); 1944 } 1945 public RunningTaskInfo[] newArray(int size) { 1946 return new RunningTaskInfo[size]; 1947 } 1948 }; 1949 1950 private RunningTaskInfo(Parcel source) { 1951 readFromParcel(source); 1952 } 1953 } 1954 1955 /** 1956 * Get the list of tasks associated with the calling application. 1957 * 1958 * @return The list of tasks associated with the application making this call. 1959 * @throws SecurityException 1960 */ 1961 public List<ActivityManager.AppTask> getAppTasks() { 1962 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1963 List<IBinder> appTasks; 1964 try { 1965 appTasks = getService().getAppTasks(mContext.getPackageName()); 1966 } catch (RemoteException e) { 1967 throw e.rethrowFromSystemServer(); 1968 } 1969 int numAppTasks = appTasks.size(); 1970 for (int i = 0; i < numAppTasks; i++) { 1971 tasks.add(new AppTask(IAppTask.Stub.asInterface(appTasks.get(i)))); 1972 } 1973 return tasks; 1974 } 1975 1976 /** 1977 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1978 * with {@link #addAppTask}. 1979 */ 1980 public Size getAppTaskThumbnailSize() { 1981 synchronized (this) { 1982 ensureAppTaskThumbnailSizeLocked(); 1983 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1984 } 1985 } 1986 1987 private void ensureAppTaskThumbnailSizeLocked() { 1988 if (mAppTaskThumbnailSize == null) { 1989 try { 1990 mAppTaskThumbnailSize = getService().getAppTaskThumbnailSize(); 1991 } catch (RemoteException e) { 1992 throw e.rethrowFromSystemServer(); 1993 } 1994 } 1995 } 1996 1997 /** 1998 * Add a new {@link AppTask} for the calling application. This will create a new 1999 * recents entry that is added to the <b>end</b> of all existing recents. 2000 * 2001 * @param activity The activity that is adding the entry. This is used to help determine 2002 * the context that the new recents entry will be in. 2003 * @param intent The Intent that describes the recents entry. This is the same Intent that 2004 * you would have used to launch the activity for it. In generally you will want to set 2005 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 2006 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 2007 * entry will exist without an activity, so it doesn't make sense to not retain it when 2008 * its activity disappears. The given Intent here also must have an explicit ComponentName 2009 * set on it. 2010 * @param description Optional additional description information. 2011 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 2012 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 2013 * recreated in your process, probably in a way you don't like, before the recents entry 2014 * is added. 2015 * 2016 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 2017 * most likely cause of failure is that there is no more room for more tasks for your app. 2018 */ 2019 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 2020 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 2021 Point size; 2022 synchronized (this) { 2023 ensureAppTaskThumbnailSizeLocked(); 2024 size = mAppTaskThumbnailSize; 2025 } 2026 final int tw = thumbnail.getWidth(); 2027 final int th = thumbnail.getHeight(); 2028 if (tw != size.x || th != size.y) { 2029 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 2030 2031 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 2032 float scale; 2033 float dx = 0, dy = 0; 2034 if (tw * size.x > size.y * th) { 2035 scale = (float) size.x / (float) th; 2036 dx = (size.y - tw * scale) * 0.5f; 2037 } else { 2038 scale = (float) size.y / (float) tw; 2039 dy = (size.x - th * scale) * 0.5f; 2040 } 2041 Matrix matrix = new Matrix(); 2042 matrix.setScale(scale, scale); 2043 matrix.postTranslate((int) (dx + 0.5f), 0); 2044 2045 Canvas canvas = new Canvas(bm); 2046 canvas.drawBitmap(thumbnail, matrix, null); 2047 canvas.setBitmap(null); 2048 2049 thumbnail = bm; 2050 } 2051 if (description == null) { 2052 description = new TaskDescription(); 2053 } 2054 try { 2055 return getService().addAppTask(activity.getActivityToken(), 2056 intent, description, thumbnail); 2057 } catch (RemoteException e) { 2058 throw e.rethrowFromSystemServer(); 2059 } 2060 } 2061 2062 /** 2063 * Return a list of the tasks that are currently running, with 2064 * the most recent being first and older ones after in order. Note that 2065 * "running" does not mean any of the task's code is currently loaded or 2066 * activity -- the task may have been frozen by the system, so that it 2067 * can be restarted in its previous state when next brought to the 2068 * foreground. 2069 * 2070 * <p><b>Note: this method is only intended for debugging and presenting 2071 * task management user interfaces</b>. This should never be used for 2072 * core logic in an application, such as deciding between different 2073 * behaviors based on the information found here. Such uses are 2074 * <em>not</em> supported, and will likely break in the future. For 2075 * example, if multiple applications can be actively running at the 2076 * same time, assumptions made about the meaning of the data here for 2077 * purposes of control flow will be incorrect.</p> 2078 * 2079 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 2080 * is no longer available to third party 2081 * applications: the introduction of document-centric recents means 2082 * it can leak person information to the caller. For backwards compatibility, 2083 * it will still retu rn a small subset of its data: at least the caller's 2084 * own tasks, and possibly some other tasks 2085 * such as home that are known to not be sensitive. 2086 * 2087 * @param maxNum The maximum number of entries to return in the list. The 2088 * actual number returned may be smaller, depending on how many tasks the 2089 * user has started. 2090 * 2091 * @return Returns a list of RunningTaskInfo records describing each of 2092 * the running tasks. 2093 */ 2094 @Deprecated 2095 public List<RunningTaskInfo> getRunningTasks(int maxNum) 2096 throws SecurityException { 2097 try { 2098 return getService().getTasks(maxNum, 0); 2099 } catch (RemoteException e) { 2100 throw e.rethrowFromSystemServer(); 2101 } 2102 } 2103 2104 /** 2105 * Completely remove the given task. 2106 * 2107 * @param taskId Identifier of the task to be removed. 2108 * @return Returns true if the given task was found and removed. 2109 * 2110 * @hide 2111 */ 2112 public boolean removeTask(int taskId) throws SecurityException { 2113 try { 2114 return getService().removeTask(taskId); 2115 } catch (RemoteException e) { 2116 throw e.rethrowFromSystemServer(); 2117 } 2118 } 2119 2120 /** 2121 * Metadata related to the {@link TaskThumbnail}. 2122 * 2123 * @hide 2124 */ 2125 public static class TaskThumbnailInfo implements Parcelable { 2126 /** @hide */ 2127 public static final String ATTR_TASK_THUMBNAILINFO_PREFIX = "task_thumbnailinfo_"; 2128 private static final String ATTR_TASK_WIDTH = 2129 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_width"; 2130 private static final String ATTR_TASK_HEIGHT = 2131 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_height"; 2132 private static final String ATTR_SCREEN_ORIENTATION = 2133 ATTR_TASK_THUMBNAILINFO_PREFIX + "screen_orientation"; 2134 2135 public int taskWidth; 2136 public int taskHeight; 2137 public int screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2138 2139 public TaskThumbnailInfo() { 2140 // Do nothing 2141 } 2142 2143 private TaskThumbnailInfo(Parcel source) { 2144 readFromParcel(source); 2145 } 2146 2147 /** 2148 * Resets this info state to the initial state. 2149 * @hide 2150 */ 2151 public void reset() { 2152 taskWidth = 0; 2153 taskHeight = 0; 2154 screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2155 } 2156 2157 /** 2158 * Copies from another ThumbnailInfo. 2159 */ 2160 public void copyFrom(TaskThumbnailInfo o) { 2161 taskWidth = o.taskWidth; 2162 taskHeight = o.taskHeight; 2163 screenOrientation = o.screenOrientation; 2164 } 2165 2166 /** @hide */ 2167 public void saveToXml(XmlSerializer out) throws IOException { 2168 out.attribute(null, ATTR_TASK_WIDTH, Integer.toString(taskWidth)); 2169 out.attribute(null, ATTR_TASK_HEIGHT, Integer.toString(taskHeight)); 2170 out.attribute(null, ATTR_SCREEN_ORIENTATION, Integer.toString(screenOrientation)); 2171 } 2172 2173 /** @hide */ 2174 public void restoreFromXml(String attrName, String attrValue) { 2175 if (ATTR_TASK_WIDTH.equals(attrName)) { 2176 taskWidth = Integer.parseInt(attrValue); 2177 } else if (ATTR_TASK_HEIGHT.equals(attrName)) { 2178 taskHeight = Integer.parseInt(attrValue); 2179 } else if (ATTR_SCREEN_ORIENTATION.equals(attrName)) { 2180 screenOrientation = Integer.parseInt(attrValue); 2181 } 2182 } 2183 2184 public int describeContents() { 2185 return 0; 2186 } 2187 2188 public void writeToParcel(Parcel dest, int flags) { 2189 dest.writeInt(taskWidth); 2190 dest.writeInt(taskHeight); 2191 dest.writeInt(screenOrientation); 2192 } 2193 2194 public void readFromParcel(Parcel source) { 2195 taskWidth = source.readInt(); 2196 taskHeight = source.readInt(); 2197 screenOrientation = source.readInt(); 2198 } 2199 2200 public static final Creator<TaskThumbnailInfo> CREATOR = new Creator<TaskThumbnailInfo>() { 2201 public TaskThumbnailInfo createFromParcel(Parcel source) { 2202 return new TaskThumbnailInfo(source); 2203 } 2204 public TaskThumbnailInfo[] newArray(int size) { 2205 return new TaskThumbnailInfo[size]; 2206 } 2207 }; 2208 } 2209 2210 /** @hide */ 2211 public static class TaskThumbnail implements Parcelable { 2212 public Bitmap mainThumbnail; 2213 public ParcelFileDescriptor thumbnailFileDescriptor; 2214 public TaskThumbnailInfo thumbnailInfo; 2215 2216 public TaskThumbnail() { 2217 } 2218 2219 private TaskThumbnail(Parcel source) { 2220 readFromParcel(source); 2221 } 2222 2223 public int describeContents() { 2224 if (thumbnailFileDescriptor != null) { 2225 return thumbnailFileDescriptor.describeContents(); 2226 } 2227 return 0; 2228 } 2229 2230 public void writeToParcel(Parcel dest, int flags) { 2231 if (mainThumbnail != null) { 2232 dest.writeInt(1); 2233 mainThumbnail.writeToParcel(dest, flags); 2234 } else { 2235 dest.writeInt(0); 2236 } 2237 if (thumbnailFileDescriptor != null) { 2238 dest.writeInt(1); 2239 thumbnailFileDescriptor.writeToParcel(dest, flags); 2240 } else { 2241 dest.writeInt(0); 2242 } 2243 if (thumbnailInfo != null) { 2244 dest.writeInt(1); 2245 thumbnailInfo.writeToParcel(dest, flags); 2246 } else { 2247 dest.writeInt(0); 2248 } 2249 } 2250 2251 public void readFromParcel(Parcel source) { 2252 if (source.readInt() != 0) { 2253 mainThumbnail = Bitmap.CREATOR.createFromParcel(source); 2254 } else { 2255 mainThumbnail = null; 2256 } 2257 if (source.readInt() != 0) { 2258 thumbnailFileDescriptor = ParcelFileDescriptor.CREATOR.createFromParcel(source); 2259 } else { 2260 thumbnailFileDescriptor = null; 2261 } 2262 if (source.readInt() != 0) { 2263 thumbnailInfo = TaskThumbnailInfo.CREATOR.createFromParcel(source); 2264 } else { 2265 thumbnailInfo = null; 2266 } 2267 } 2268 2269 public static final Creator<TaskThumbnail> CREATOR = new Creator<TaskThumbnail>() { 2270 public TaskThumbnail createFromParcel(Parcel source) { 2271 return new TaskThumbnail(source); 2272 } 2273 public TaskThumbnail[] newArray(int size) { 2274 return new TaskThumbnail[size]; 2275 } 2276 }; 2277 } 2278 2279 /** 2280 * Represents a task snapshot. 2281 * @hide 2282 */ 2283 public static class TaskSnapshot implements Parcelable { 2284 2285 private final GraphicBuffer mSnapshot; 2286 private final int mOrientation; 2287 private final Rect mContentInsets; 2288 private final boolean mReducedResolution; 2289 private final float mScale; 2290 2291 public TaskSnapshot(GraphicBuffer snapshot, int orientation, Rect contentInsets, 2292 boolean reducedResolution, float scale) { 2293 mSnapshot = snapshot; 2294 mOrientation = orientation; 2295 mContentInsets = new Rect(contentInsets); 2296 mReducedResolution = reducedResolution; 2297 mScale = scale; 2298 } 2299 2300 private TaskSnapshot(Parcel source) { 2301 mSnapshot = source.readParcelable(null /* classLoader */); 2302 mOrientation = source.readInt(); 2303 mContentInsets = source.readParcelable(null /* classLoader */); 2304 mReducedResolution = source.readBoolean(); 2305 mScale = source.readFloat(); 2306 } 2307 2308 /** 2309 * @return The graphic buffer representing the screenshot. 2310 */ 2311 public GraphicBuffer getSnapshot() { 2312 return mSnapshot; 2313 } 2314 2315 /** 2316 * @return The screen orientation the screenshot was taken in. 2317 */ 2318 public int getOrientation() { 2319 return mOrientation; 2320 } 2321 2322 /** 2323 * @return The system/content insets on the snapshot. These can be clipped off in order to 2324 * remove any areas behind system bars in the snapshot. 2325 */ 2326 public Rect getContentInsets() { 2327 return mContentInsets; 2328 } 2329 2330 /** 2331 * @return Whether this snapshot is a down-sampled version of the full resolution. 2332 */ 2333 public boolean isReducedResolution() { 2334 return mReducedResolution; 2335 } 2336 2337 /** 2338 * @return The scale this snapshot was taken in. 2339 */ 2340 public float getScale() { 2341 return mScale; 2342 } 2343 2344 @Override 2345 public int describeContents() { 2346 return 0; 2347 } 2348 2349 @Override 2350 public void writeToParcel(Parcel dest, int flags) { 2351 dest.writeParcelable(mSnapshot, 0); 2352 dest.writeInt(mOrientation); 2353 dest.writeParcelable(mContentInsets, 0); 2354 dest.writeBoolean(mReducedResolution); 2355 dest.writeFloat(mScale); 2356 } 2357 2358 @Override 2359 public String toString() { 2360 return "TaskSnapshot{mSnapshot=" + mSnapshot + " mOrientation=" + mOrientation 2361 + " mContentInsets=" + mContentInsets.toShortString() 2362 + " mReducedResolution=" + mReducedResolution + " mScale=" + mScale; 2363 } 2364 2365 public static final Creator<TaskSnapshot> CREATOR = new Creator<TaskSnapshot>() { 2366 public TaskSnapshot createFromParcel(Parcel source) { 2367 return new TaskSnapshot(source); 2368 } 2369 public TaskSnapshot[] newArray(int size) { 2370 return new TaskSnapshot[size]; 2371 } 2372 }; 2373 } 2374 2375 /** @hide */ 2376 public TaskThumbnail getTaskThumbnail(int id) throws SecurityException { 2377 try { 2378 return getService().getTaskThumbnail(id); 2379 } catch (RemoteException e) { 2380 throw e.rethrowFromSystemServer(); 2381 } 2382 } 2383 2384 /** @hide */ 2385 @IntDef(flag = true, prefix = { "MOVE_TASK_" }, value = { 2386 MOVE_TASK_WITH_HOME, 2387 MOVE_TASK_NO_USER_ACTION, 2388 }) 2389 @Retention(RetentionPolicy.SOURCE) 2390 public @interface MoveTaskFlags {} 2391 2392 /** 2393 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2394 * activity along with the task, so it is positioned immediately behind 2395 * the task. 2396 */ 2397 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2398 2399 /** 2400 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2401 * user-instigated action, so the current activity will not receive a 2402 * hint that the user is leaving. 2403 */ 2404 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2405 2406 /** 2407 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2408 * with a null options argument. 2409 * 2410 * @param taskId The identifier of the task to be moved, as found in 2411 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2412 * @param flags Additional operational flags. 2413 */ 2414 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2415 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags) { 2416 moveTaskToFront(taskId, flags, null); 2417 } 2418 2419 /** 2420 * Ask that the task associated with a given task ID be moved to the 2421 * front of the stack, so it is now visible to the user. 2422 * 2423 * @param taskId The identifier of the task to be moved, as found in 2424 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2425 * @param flags Additional operational flags. 2426 * @param options Additional options for the operation, either null or 2427 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2428 * Context.startActivity(Intent, Bundle)}. 2429 */ 2430 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2431 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags, Bundle options) { 2432 try { 2433 getService().moveTaskToFront(taskId, flags, options); 2434 } catch (RemoteException e) { 2435 throw e.rethrowFromSystemServer(); 2436 } 2437 } 2438 2439 /** 2440 * Information you can retrieve about a particular Service that is 2441 * currently running in the system. 2442 */ 2443 public static class RunningServiceInfo implements Parcelable { 2444 /** 2445 * The service component. 2446 */ 2447 public ComponentName service; 2448 2449 /** 2450 * If non-zero, this is the process the service is running in. 2451 */ 2452 public int pid; 2453 2454 /** 2455 * The UID that owns this service. 2456 */ 2457 public int uid; 2458 2459 /** 2460 * The name of the process this service runs in. 2461 */ 2462 public String process; 2463 2464 /** 2465 * Set to true if the service has asked to run as a foreground process. 2466 */ 2467 public boolean foreground; 2468 2469 /** 2470 * The time when the service was first made active, either by someone 2471 * starting or binding to it. This 2472 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2473 */ 2474 public long activeSince; 2475 2476 /** 2477 * Set to true if this service has been explicitly started. 2478 */ 2479 public boolean started; 2480 2481 /** 2482 * Number of clients connected to the service. 2483 */ 2484 public int clientCount; 2485 2486 /** 2487 * Number of times the service's process has crashed while the service 2488 * is running. 2489 */ 2490 public int crashCount; 2491 2492 /** 2493 * The time when there was last activity in the service (either 2494 * explicit requests to start it or clients binding to it). This 2495 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2496 */ 2497 public long lastActivityTime; 2498 2499 /** 2500 * If non-zero, this service is not currently running, but scheduled to 2501 * restart at the given time. 2502 */ 2503 public long restarting; 2504 2505 /** 2506 * Bit for {@link #flags}: set if this service has been 2507 * explicitly started. 2508 */ 2509 public static final int FLAG_STARTED = 1<<0; 2510 2511 /** 2512 * Bit for {@link #flags}: set if the service has asked to 2513 * run as a foreground process. 2514 */ 2515 public static final int FLAG_FOREGROUND = 1<<1; 2516 2517 /** 2518 * Bit for {@link #flags}: set if the service is running in a 2519 * core system process. 2520 */ 2521 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2522 2523 /** 2524 * Bit for {@link #flags}: set if the service is running in a 2525 * persistent process. 2526 */ 2527 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2528 2529 /** 2530 * Running flags. 2531 */ 2532 public int flags; 2533 2534 /** 2535 * For special services that are bound to by system code, this is 2536 * the package that holds the binding. 2537 */ 2538 public String clientPackage; 2539 2540 /** 2541 * For special services that are bound to by system code, this is 2542 * a string resource providing a user-visible label for who the 2543 * client is. 2544 */ 2545 public int clientLabel; 2546 2547 public RunningServiceInfo() { 2548 } 2549 2550 public int describeContents() { 2551 return 0; 2552 } 2553 2554 public void writeToParcel(Parcel dest, int flags) { 2555 ComponentName.writeToParcel(service, dest); 2556 dest.writeInt(pid); 2557 dest.writeInt(uid); 2558 dest.writeString(process); 2559 dest.writeInt(foreground ? 1 : 0); 2560 dest.writeLong(activeSince); 2561 dest.writeInt(started ? 1 : 0); 2562 dest.writeInt(clientCount); 2563 dest.writeInt(crashCount); 2564 dest.writeLong(lastActivityTime); 2565 dest.writeLong(restarting); 2566 dest.writeInt(this.flags); 2567 dest.writeString(clientPackage); 2568 dest.writeInt(clientLabel); 2569 } 2570 2571 public void readFromParcel(Parcel source) { 2572 service = ComponentName.readFromParcel(source); 2573 pid = source.readInt(); 2574 uid = source.readInt(); 2575 process = source.readString(); 2576 foreground = source.readInt() != 0; 2577 activeSince = source.readLong(); 2578 started = source.readInt() != 0; 2579 clientCount = source.readInt(); 2580 crashCount = source.readInt(); 2581 lastActivityTime = source.readLong(); 2582 restarting = source.readLong(); 2583 flags = source.readInt(); 2584 clientPackage = source.readString(); 2585 clientLabel = source.readInt(); 2586 } 2587 2588 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2589 public RunningServiceInfo createFromParcel(Parcel source) { 2590 return new RunningServiceInfo(source); 2591 } 2592 public RunningServiceInfo[] newArray(int size) { 2593 return new RunningServiceInfo[size]; 2594 } 2595 }; 2596 2597 private RunningServiceInfo(Parcel source) { 2598 readFromParcel(source); 2599 } 2600 } 2601 2602 /** 2603 * Return a list of the services that are currently running. 2604 * 2605 * <p><b>Note: this method is only intended for debugging or implementing 2606 * service management type user interfaces.</b></p> 2607 * 2608 * @deprecated As of {@link android.os.Build.VERSION_CODES#O}, this method 2609 * is no longer available to third party applications. For backwards compatibility, 2610 * it will still return the caller's own services. 2611 * 2612 * @param maxNum The maximum number of entries to return in the list. The 2613 * actual number returned may be smaller, depending on how many services 2614 * are running. 2615 * 2616 * @return Returns a list of RunningServiceInfo records describing each of 2617 * the running tasks. 2618 */ 2619 @Deprecated 2620 public List<RunningServiceInfo> getRunningServices(int maxNum) 2621 throws SecurityException { 2622 try { 2623 return getService() 2624 .getServices(maxNum, 0); 2625 } catch (RemoteException e) { 2626 throw e.rethrowFromSystemServer(); 2627 } 2628 } 2629 2630 /** 2631 * Returns a PendingIntent you can start to show a control panel for the 2632 * given running service. If the service does not have a control panel, 2633 * null is returned. 2634 */ 2635 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2636 throws SecurityException { 2637 try { 2638 return getService() 2639 .getRunningServiceControlPanel(service); 2640 } catch (RemoteException e) { 2641 throw e.rethrowFromSystemServer(); 2642 } 2643 } 2644 2645 /** 2646 * Information you can retrieve about the available memory through 2647 * {@link ActivityManager#getMemoryInfo}. 2648 */ 2649 public static class MemoryInfo implements Parcelable { 2650 /** 2651 * The available memory on the system. This number should not 2652 * be considered absolute: due to the nature of the kernel, a significant 2653 * portion of this memory is actually in use and needed for the overall 2654 * system to run well. 2655 */ 2656 public long availMem; 2657 2658 /** 2659 * The total memory accessible by the kernel. This is basically the 2660 * RAM size of the device, not including below-kernel fixed allocations 2661 * like DMA buffers, RAM for the baseband CPU, etc. 2662 */ 2663 public long totalMem; 2664 2665 /** 2666 * The threshold of {@link #availMem} at which we consider memory to be 2667 * low and start killing background services and other non-extraneous 2668 * processes. 2669 */ 2670 public long threshold; 2671 2672 /** 2673 * Set to true if the system considers itself to currently be in a low 2674 * memory situation. 2675 */ 2676 public boolean lowMemory; 2677 2678 /** @hide */ 2679 public long hiddenAppThreshold; 2680 /** @hide */ 2681 public long secondaryServerThreshold; 2682 /** @hide */ 2683 public long visibleAppThreshold; 2684 /** @hide */ 2685 public long foregroundAppThreshold; 2686 2687 public MemoryInfo() { 2688 } 2689 2690 public int describeContents() { 2691 return 0; 2692 } 2693 2694 public void writeToParcel(Parcel dest, int flags) { 2695 dest.writeLong(availMem); 2696 dest.writeLong(totalMem); 2697 dest.writeLong(threshold); 2698 dest.writeInt(lowMemory ? 1 : 0); 2699 dest.writeLong(hiddenAppThreshold); 2700 dest.writeLong(secondaryServerThreshold); 2701 dest.writeLong(visibleAppThreshold); 2702 dest.writeLong(foregroundAppThreshold); 2703 } 2704 2705 public void readFromParcel(Parcel source) { 2706 availMem = source.readLong(); 2707 totalMem = source.readLong(); 2708 threshold = source.readLong(); 2709 lowMemory = source.readInt() != 0; 2710 hiddenAppThreshold = source.readLong(); 2711 secondaryServerThreshold = source.readLong(); 2712 visibleAppThreshold = source.readLong(); 2713 foregroundAppThreshold = source.readLong(); 2714 } 2715 2716 public static final Creator<MemoryInfo> CREATOR 2717 = new Creator<MemoryInfo>() { 2718 public MemoryInfo createFromParcel(Parcel source) { 2719 return new MemoryInfo(source); 2720 } 2721 public MemoryInfo[] newArray(int size) { 2722 return new MemoryInfo[size]; 2723 } 2724 }; 2725 2726 private MemoryInfo(Parcel source) { 2727 readFromParcel(source); 2728 } 2729 } 2730 2731 /** 2732 * Return general information about the memory state of the system. This 2733 * can be used to help decide how to manage your own memory, though note 2734 * that polling is not recommended and 2735 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2736 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2737 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2738 * level of your process as needed, which gives a better hint for how to 2739 * manage its memory. 2740 */ 2741 public void getMemoryInfo(MemoryInfo outInfo) { 2742 try { 2743 getService().getMemoryInfo(outInfo); 2744 } catch (RemoteException e) { 2745 throw e.rethrowFromSystemServer(); 2746 } 2747 } 2748 2749 /** 2750 * Information you can retrieve about an ActivityStack in the system. 2751 * @hide 2752 */ 2753 public static class StackInfo implements Parcelable { 2754 public int stackId; 2755 public Rect bounds = new Rect(); 2756 public int[] taskIds; 2757 public String[] taskNames; 2758 public Rect[] taskBounds; 2759 public int[] taskUserIds; 2760 public ComponentName topActivity; 2761 public int displayId; 2762 public int userId; 2763 public boolean visible; 2764 // Index of the stack in the display's stack list, can be used for comparison of stack order 2765 public int position; 2766 2767 @Override 2768 public int describeContents() { 2769 return 0; 2770 } 2771 2772 @Override 2773 public void writeToParcel(Parcel dest, int flags) { 2774 dest.writeInt(stackId); 2775 dest.writeInt(bounds.left); 2776 dest.writeInt(bounds.top); 2777 dest.writeInt(bounds.right); 2778 dest.writeInt(bounds.bottom); 2779 dest.writeIntArray(taskIds); 2780 dest.writeStringArray(taskNames); 2781 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2782 dest.writeInt(boundsCount); 2783 for (int i = 0; i < boundsCount; i++) { 2784 dest.writeInt(taskBounds[i].left); 2785 dest.writeInt(taskBounds[i].top); 2786 dest.writeInt(taskBounds[i].right); 2787 dest.writeInt(taskBounds[i].bottom); 2788 } 2789 dest.writeIntArray(taskUserIds); 2790 dest.writeInt(displayId); 2791 dest.writeInt(userId); 2792 dest.writeInt(visible ? 1 : 0); 2793 dest.writeInt(position); 2794 if (topActivity != null) { 2795 dest.writeInt(1); 2796 topActivity.writeToParcel(dest, 0); 2797 } else { 2798 dest.writeInt(0); 2799 } 2800 } 2801 2802 public void readFromParcel(Parcel source) { 2803 stackId = source.readInt(); 2804 bounds = new Rect( 2805 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2806 taskIds = source.createIntArray(); 2807 taskNames = source.createStringArray(); 2808 final int boundsCount = source.readInt(); 2809 if (boundsCount > 0) { 2810 taskBounds = new Rect[boundsCount]; 2811 for (int i = 0; i < boundsCount; i++) { 2812 taskBounds[i] = new Rect(); 2813 taskBounds[i].set( 2814 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2815 } 2816 } else { 2817 taskBounds = null; 2818 } 2819 taskUserIds = source.createIntArray(); 2820 displayId = source.readInt(); 2821 userId = source.readInt(); 2822 visible = source.readInt() > 0; 2823 position = source.readInt(); 2824 if (source.readInt() > 0) { 2825 topActivity = ComponentName.readFromParcel(source); 2826 } 2827 } 2828 2829 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2830 @Override 2831 public StackInfo createFromParcel(Parcel source) { 2832 return new StackInfo(source); 2833 } 2834 @Override 2835 public StackInfo[] newArray(int size) { 2836 return new StackInfo[size]; 2837 } 2838 }; 2839 2840 public StackInfo() { 2841 } 2842 2843 private StackInfo(Parcel source) { 2844 readFromParcel(source); 2845 } 2846 2847 public String toString(String prefix) { 2848 StringBuilder sb = new StringBuilder(256); 2849 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2850 sb.append(" bounds="); sb.append(bounds.toShortString()); 2851 sb.append(" displayId="); sb.append(displayId); 2852 sb.append(" userId="); sb.append(userId); 2853 sb.append("\n"); 2854 prefix = prefix + " "; 2855 for (int i = 0; i < taskIds.length; ++i) { 2856 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2857 sb.append(": "); sb.append(taskNames[i]); 2858 if (taskBounds != null) { 2859 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2860 } 2861 sb.append(" userId=").append(taskUserIds[i]); 2862 sb.append(" visible=").append(visible); 2863 if (topActivity != null) { 2864 sb.append(" topActivity=").append(topActivity); 2865 } 2866 sb.append("\n"); 2867 } 2868 return sb.toString(); 2869 } 2870 2871 @Override 2872 public String toString() { 2873 return toString(""); 2874 } 2875 } 2876 2877 /** 2878 * @hide 2879 */ 2880 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2881 try { 2882 return getService().clearApplicationUserData(packageName, 2883 observer, UserHandle.myUserId()); 2884 } catch (RemoteException e) { 2885 throw e.rethrowFromSystemServer(); 2886 } 2887 } 2888 2889 /** 2890 * Permits an application to erase its own data from disk. This is equivalent to 2891 * the user choosing to clear the app's data from within the device settings UI. It 2892 * erases all dynamic data associated with the app -- its private data and data in its 2893 * private area on external storage -- but does not remove the installed application 2894 * itself, nor any OBB files. 2895 * 2896 * @return {@code true} if the application successfully requested that the application's 2897 * data be erased; {@code false} otherwise. 2898 */ 2899 public boolean clearApplicationUserData() { 2900 return clearApplicationUserData(mContext.getPackageName(), null); 2901 } 2902 2903 2904 /** 2905 * Permits an application to get the persistent URI permissions granted to another. 2906 * 2907 * <p>Typically called by Settings. 2908 * 2909 * @param packageName application to look for the granted permissions 2910 * @return list of granted URI permissions 2911 * 2912 * @hide 2913 */ 2914 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2915 try { 2916 return getService().getGrantedUriPermissions(packageName, 2917 UserHandle.myUserId()); 2918 } catch (RemoteException e) { 2919 throw e.rethrowFromSystemServer(); 2920 } 2921 } 2922 2923 /** 2924 * Permits an application to clear the persistent URI permissions granted to another. 2925 * 2926 * <p>Typically called by Settings. 2927 * 2928 * @param packageName application to clear its granted permissions 2929 * 2930 * @hide 2931 */ 2932 public void clearGrantedUriPermissions(String packageName) { 2933 try { 2934 getService().clearGrantedUriPermissions(packageName, 2935 UserHandle.myUserId()); 2936 } catch (RemoteException e) { 2937 throw e.rethrowFromSystemServer(); 2938 } 2939 } 2940 2941 /** 2942 * Information you can retrieve about any processes that are in an error condition. 2943 */ 2944 public static class ProcessErrorStateInfo implements Parcelable { 2945 /** 2946 * Condition codes 2947 */ 2948 public static final int NO_ERROR = 0; 2949 public static final int CRASHED = 1; 2950 public static final int NOT_RESPONDING = 2; 2951 2952 /** 2953 * The condition that the process is in. 2954 */ 2955 public int condition; 2956 2957 /** 2958 * The process name in which the crash or error occurred. 2959 */ 2960 public String processName; 2961 2962 /** 2963 * The pid of this process; 0 if none 2964 */ 2965 public int pid; 2966 2967 /** 2968 * The kernel user-ID that has been assigned to this process; 2969 * currently this is not a unique ID (multiple applications can have 2970 * the same uid). 2971 */ 2972 public int uid; 2973 2974 /** 2975 * The activity name associated with the error, if known. May be null. 2976 */ 2977 public String tag; 2978 2979 /** 2980 * A short message describing the error condition. 2981 */ 2982 public String shortMsg; 2983 2984 /** 2985 * A long message describing the error condition. 2986 */ 2987 public String longMsg; 2988 2989 /** 2990 * The stack trace where the error originated. May be null. 2991 */ 2992 public String stackTrace; 2993 2994 /** 2995 * to be deprecated: This value will always be null. 2996 */ 2997 public byte[] crashData = null; 2998 2999 public ProcessErrorStateInfo() { 3000 } 3001 3002 @Override 3003 public int describeContents() { 3004 return 0; 3005 } 3006 3007 @Override 3008 public void writeToParcel(Parcel dest, int flags) { 3009 dest.writeInt(condition); 3010 dest.writeString(processName); 3011 dest.writeInt(pid); 3012 dest.writeInt(uid); 3013 dest.writeString(tag); 3014 dest.writeString(shortMsg); 3015 dest.writeString(longMsg); 3016 dest.writeString(stackTrace); 3017 } 3018 3019 public void readFromParcel(Parcel source) { 3020 condition = source.readInt(); 3021 processName = source.readString(); 3022 pid = source.readInt(); 3023 uid = source.readInt(); 3024 tag = source.readString(); 3025 shortMsg = source.readString(); 3026 longMsg = source.readString(); 3027 stackTrace = source.readString(); 3028 } 3029 3030 public static final Creator<ProcessErrorStateInfo> CREATOR = 3031 new Creator<ProcessErrorStateInfo>() { 3032 public ProcessErrorStateInfo createFromParcel(Parcel source) { 3033 return new ProcessErrorStateInfo(source); 3034 } 3035 public ProcessErrorStateInfo[] newArray(int size) { 3036 return new ProcessErrorStateInfo[size]; 3037 } 3038 }; 3039 3040 private ProcessErrorStateInfo(Parcel source) { 3041 readFromParcel(source); 3042 } 3043 } 3044 3045 /** 3046 * Returns a list of any processes that are currently in an error condition. The result 3047 * will be null if all processes are running properly at this time. 3048 * 3049 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 3050 * current error conditions (it will not return an empty list). This list ordering is not 3051 * specified. 3052 */ 3053 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 3054 try { 3055 return getService().getProcessesInErrorState(); 3056 } catch (RemoteException e) { 3057 throw e.rethrowFromSystemServer(); 3058 } 3059 } 3060 3061 /** 3062 * Information you can retrieve about a running process. 3063 */ 3064 public static class RunningAppProcessInfo implements Parcelable { 3065 /** 3066 * The name of the process that this object is associated with 3067 */ 3068 public String processName; 3069 3070 /** 3071 * The pid of this process; 0 if none 3072 */ 3073 public int pid; 3074 3075 /** 3076 * The user id of this process. 3077 */ 3078 public int uid; 3079 3080 /** 3081 * All packages that have been loaded into the process. 3082 */ 3083 public String pkgList[]; 3084 3085 /** 3086 * Constant for {@link #flags}: this is an app that is unable to 3087 * correctly save its state when going to the background, 3088 * so it can not be killed while in the background. 3089 * @hide 3090 */ 3091 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 3092 3093 /** 3094 * Constant for {@link #flags}: this process is associated with a 3095 * persistent system app. 3096 * @hide 3097 */ 3098 public static final int FLAG_PERSISTENT = 1<<1; 3099 3100 /** 3101 * Constant for {@link #flags}: this process is associated with a 3102 * persistent system app. 3103 * @hide 3104 */ 3105 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 3106 3107 /** 3108 * Flags of information. May be any of 3109 * {@link #FLAG_CANT_SAVE_STATE}. 3110 * @hide 3111 */ 3112 public int flags; 3113 3114 /** 3115 * Last memory trim level reported to the process: corresponds to 3116 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 3117 * ComponentCallbacks2.onTrimMemory(int)}. 3118 */ 3119 public int lastTrimLevel; 3120 3121 /** @hide */ 3122 @IntDef(prefix = { "IMPORTANCE_" }, value = { 3123 IMPORTANCE_FOREGROUND, 3124 IMPORTANCE_FOREGROUND_SERVICE, 3125 IMPORTANCE_TOP_SLEEPING, 3126 IMPORTANCE_VISIBLE, 3127 IMPORTANCE_PERCEPTIBLE, 3128 IMPORTANCE_CANT_SAVE_STATE, 3129 IMPORTANCE_SERVICE, 3130 IMPORTANCE_CACHED, 3131 IMPORTANCE_GONE, 3132 }) 3133 @Retention(RetentionPolicy.SOURCE) 3134 public @interface Importance {} 3135 3136 /** 3137 * Constant for {@link #importance}: This process is running the 3138 * foreground UI; that is, it is the thing currently at the top of the screen 3139 * that the user is interacting with. 3140 */ 3141 public static final int IMPORTANCE_FOREGROUND = 100; 3142 3143 /** 3144 * Constant for {@link #importance}: This process is running a foreground 3145 * service, for example to perform music playback even while the user is 3146 * not immediately in the app. This generally indicates that the process 3147 * is doing something the user actively cares about. 3148 */ 3149 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 3150 3151 /** 3152 * Constant for {@link #importance}: This process is running the foreground 3153 * UI, but the device is asleep so it is not visible to the user. This means 3154 * the user is not really aware of the process, because they can not see or 3155 * interact with it, but it is quite important because it what they expect to 3156 * return to once unlocking the device. 3157 */ 3158 public static final int IMPORTANCE_TOP_SLEEPING = 150; 3159 3160 /** 3161 * Constant for {@link #importance}: This process is running something 3162 * that is actively visible to the user, though not in the immediate 3163 * foreground. This may be running a window that is behind the current 3164 * foreground (so paused and with its state saved, not interacting with 3165 * the user, but visible to them to some degree); it may also be running 3166 * other services under the system's control that it inconsiders important. 3167 */ 3168 public static final int IMPORTANCE_VISIBLE = 200; 3169 3170 /** 3171 * Constant for {@link #importance}: {@link #IMPORTANCE_PERCEPTIBLE} had this wrong value 3172 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3173 * the value of {@link #IMPORTANCE_PERCEPTIBLE} has been fixed. 3174 * 3175 * <p>The system will return this value instead of {@link #IMPORTANCE_PERCEPTIBLE} 3176 * on Android versions below {@link Build.VERSION_CODES#O}. 3177 * 3178 * <p>On Android version {@link Build.VERSION_CODES#O} and later, this value will still be 3179 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 3180 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 3181 * the correct value {@link #IMPORTANCE_PERCEPTIBLE} will be returned. 3182 */ 3183 public static final int IMPORTANCE_PERCEPTIBLE_PRE_26 = 130; 3184 3185 /** 3186 * Constant for {@link #importance}: This process is not something the user 3187 * is directly aware of, but is otherwise perceptible to them to some degree. 3188 */ 3189 public static final int IMPORTANCE_PERCEPTIBLE = 230; 3190 3191 /** 3192 * Constant for {@link #importance}: {@link #IMPORTANCE_CANT_SAVE_STATE} had 3193 * this wrong value 3194 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3195 * the value of {@link #IMPORTANCE_CANT_SAVE_STATE} has been fixed. 3196 * 3197 * <p>The system will return this value instead of {@link #IMPORTANCE_CANT_SAVE_STATE} 3198 * on Android versions below {@link Build.VERSION_CODES#O}. 3199 * 3200 * <p>On Android version {@link Build.VERSION_CODES#O} after, this value will still be 3201 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 3202 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 3203 * the correct value {@link #IMPORTANCE_CANT_SAVE_STATE} will be returned. 3204 * 3205 * @hide 3206 */ 3207 public static final int IMPORTANCE_CANT_SAVE_STATE_PRE_26 = 170; 3208 3209 /** 3210 * Constant for {@link #importance}: This process is running an 3211 * application that can not save its state, and thus can't be killed 3212 * while in the background. 3213 * @hide 3214 */ 3215 public static final int IMPORTANCE_CANT_SAVE_STATE= 270; 3216 3217 /** 3218 * Constant for {@link #importance}: This process is contains services 3219 * that should remain running. These are background services apps have 3220 * started, not something the user is aware of, so they may be killed by 3221 * the system relatively freely (though it is generally desired that they 3222 * stay running as long as they want to). 3223 */ 3224 public static final int IMPORTANCE_SERVICE = 300; 3225 3226 /** 3227 * Constant for {@link #importance}: This process process contains 3228 * cached code that is expendable, not actively running any app components 3229 * we care about. 3230 */ 3231 public static final int IMPORTANCE_CACHED = 400; 3232 3233 /** 3234 * @deprecated Renamed to {@link #IMPORTANCE_CACHED}. 3235 */ 3236 public static final int IMPORTANCE_BACKGROUND = IMPORTANCE_CACHED; 3237 3238 /** 3239 * Constant for {@link #importance}: This process is empty of any 3240 * actively running code. 3241 * @deprecated This value is no longer reported, use {@link #IMPORTANCE_CACHED} instead. 3242 */ 3243 @Deprecated 3244 public static final int IMPORTANCE_EMPTY = 500; 3245 3246 /** 3247 * Constant for {@link #importance}: This process does not exist. 3248 */ 3249 public static final int IMPORTANCE_GONE = 1000; 3250 3251 /** 3252 * Convert a proc state to the correspondent IMPORTANCE_* constant. If the return value 3253 * will be passed to a client, use {@link #procStateToImportanceForClient}. 3254 * @hide 3255 */ 3256 public static @Importance int procStateToImportance(int procState) { 3257 if (procState == PROCESS_STATE_NONEXISTENT) { 3258 return IMPORTANCE_GONE; 3259 } else if (procState >= PROCESS_STATE_HOME) { 3260 return IMPORTANCE_CACHED; 3261 } else if (procState >= PROCESS_STATE_SERVICE) { 3262 return IMPORTANCE_SERVICE; 3263 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 3264 return IMPORTANCE_CANT_SAVE_STATE; 3265 } else if (procState >= PROCESS_STATE_TRANSIENT_BACKGROUND) { 3266 return IMPORTANCE_PERCEPTIBLE; 3267 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 3268 return IMPORTANCE_VISIBLE; 3269 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 3270 return IMPORTANCE_TOP_SLEEPING; 3271 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 3272 return IMPORTANCE_FOREGROUND_SERVICE; 3273 } else { 3274 return IMPORTANCE_FOREGROUND; 3275 } 3276 } 3277 3278 /** 3279 * Convert a proc state to the correspondent IMPORTANCE_* constant for a client represented 3280 * by a given {@link Context}, with converting {@link #IMPORTANCE_PERCEPTIBLE} 3281 * and {@link #IMPORTANCE_CANT_SAVE_STATE} to the corresponding "wrong" value if the 3282 * client's target SDK < {@link VERSION_CODES#O}. 3283 * @hide 3284 */ 3285 public static @Importance int procStateToImportanceForClient(int procState, 3286 Context clientContext) { 3287 return procStateToImportanceForTargetSdk(procState, 3288 clientContext.getApplicationInfo().targetSdkVersion); 3289 } 3290 3291 /** 3292 * See {@link #procStateToImportanceForClient}. 3293 * @hide 3294 */ 3295 public static @Importance int procStateToImportanceForTargetSdk(int procState, 3296 int targetSdkVersion) { 3297 final int importance = procStateToImportance(procState); 3298 3299 // For pre O apps, convert to the old, wrong values. 3300 if (targetSdkVersion < VERSION_CODES.O) { 3301 switch (importance) { 3302 case IMPORTANCE_PERCEPTIBLE: 3303 return IMPORTANCE_PERCEPTIBLE_PRE_26; 3304 case IMPORTANCE_CANT_SAVE_STATE: 3305 return IMPORTANCE_CANT_SAVE_STATE_PRE_26; 3306 } 3307 } 3308 return importance; 3309 } 3310 3311 /** @hide */ 3312 public static int importanceToProcState(@Importance int importance) { 3313 if (importance == IMPORTANCE_GONE) { 3314 return PROCESS_STATE_NONEXISTENT; 3315 } else if (importance >= IMPORTANCE_CACHED) { 3316 return PROCESS_STATE_HOME; 3317 } else if (importance >= IMPORTANCE_SERVICE) { 3318 return PROCESS_STATE_SERVICE; 3319 } else if (importance > IMPORTANCE_CANT_SAVE_STATE) { 3320 return PROCESS_STATE_HEAVY_WEIGHT; 3321 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 3322 return PROCESS_STATE_TRANSIENT_BACKGROUND; 3323 } else if (importance >= IMPORTANCE_VISIBLE) { 3324 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3325 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 3326 return PROCESS_STATE_TOP_SLEEPING; 3327 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 3328 return PROCESS_STATE_FOREGROUND_SERVICE; 3329 } else { 3330 return PROCESS_STATE_BOUND_FOREGROUND_SERVICE; 3331 } 3332 } 3333 3334 /** 3335 * The relative importance level that the system places on this process. 3336 * These constants are numbered so that "more important" values are 3337 * always smaller than "less important" values. 3338 */ 3339 public @Importance int importance; 3340 3341 /** 3342 * An additional ordering within a particular {@link #importance} 3343 * category, providing finer-grained information about the relative 3344 * utility of processes within a category. This number means nothing 3345 * except that a smaller values are more recently used (and thus 3346 * more important). Currently an LRU value is only maintained for 3347 * the {@link #IMPORTANCE_CACHED} category, though others may 3348 * be maintained in the future. 3349 */ 3350 public int lru; 3351 3352 /** 3353 * Constant for {@link #importanceReasonCode}: nothing special has 3354 * been specified for the reason for this level. 3355 */ 3356 public static final int REASON_UNKNOWN = 0; 3357 3358 /** 3359 * Constant for {@link #importanceReasonCode}: one of the application's 3360 * content providers is being used by another process. The pid of 3361 * the client process is in {@link #importanceReasonPid} and the 3362 * target provider in this process is in 3363 * {@link #importanceReasonComponent}. 3364 */ 3365 public static final int REASON_PROVIDER_IN_USE = 1; 3366 3367 /** 3368 * Constant for {@link #importanceReasonCode}: one of the application's 3369 * content providers is being used by another process. The pid of 3370 * the client process is in {@link #importanceReasonPid} and the 3371 * target provider in this process is in 3372 * {@link #importanceReasonComponent}. 3373 */ 3374 public static final int REASON_SERVICE_IN_USE = 2; 3375 3376 /** 3377 * The reason for {@link #importance}, if any. 3378 */ 3379 public int importanceReasonCode; 3380 3381 /** 3382 * For the specified values of {@link #importanceReasonCode}, this 3383 * is the process ID of the other process that is a client of this 3384 * process. This will be 0 if no other process is using this one. 3385 */ 3386 public int importanceReasonPid; 3387 3388 /** 3389 * For the specified values of {@link #importanceReasonCode}, this 3390 * is the name of the component that is being used in this process. 3391 */ 3392 public ComponentName importanceReasonComponent; 3393 3394 /** 3395 * When {@link #importanceReasonPid} is non-0, this is the importance 3396 * of the other pid. @hide 3397 */ 3398 public int importanceReasonImportance; 3399 3400 /** 3401 * Current process state, as per PROCESS_STATE_* constants. 3402 * @hide 3403 */ 3404 public int processState; 3405 3406 public RunningAppProcessInfo() { 3407 importance = IMPORTANCE_FOREGROUND; 3408 importanceReasonCode = REASON_UNKNOWN; 3409 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 3410 } 3411 3412 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 3413 processName = pProcessName; 3414 pid = pPid; 3415 pkgList = pArr; 3416 } 3417 3418 public int describeContents() { 3419 return 0; 3420 } 3421 3422 public void writeToParcel(Parcel dest, int flags) { 3423 dest.writeString(processName); 3424 dest.writeInt(pid); 3425 dest.writeInt(uid); 3426 dest.writeStringArray(pkgList); 3427 dest.writeInt(this.flags); 3428 dest.writeInt(lastTrimLevel); 3429 dest.writeInt(importance); 3430 dest.writeInt(lru); 3431 dest.writeInt(importanceReasonCode); 3432 dest.writeInt(importanceReasonPid); 3433 ComponentName.writeToParcel(importanceReasonComponent, dest); 3434 dest.writeInt(importanceReasonImportance); 3435 dest.writeInt(processState); 3436 } 3437 3438 public void readFromParcel(Parcel source) { 3439 processName = source.readString(); 3440 pid = source.readInt(); 3441 uid = source.readInt(); 3442 pkgList = source.readStringArray(); 3443 flags = source.readInt(); 3444 lastTrimLevel = source.readInt(); 3445 importance = source.readInt(); 3446 lru = source.readInt(); 3447 importanceReasonCode = source.readInt(); 3448 importanceReasonPid = source.readInt(); 3449 importanceReasonComponent = ComponentName.readFromParcel(source); 3450 importanceReasonImportance = source.readInt(); 3451 processState = source.readInt(); 3452 } 3453 3454 public static final Creator<RunningAppProcessInfo> CREATOR = 3455 new Creator<RunningAppProcessInfo>() { 3456 public RunningAppProcessInfo createFromParcel(Parcel source) { 3457 return new RunningAppProcessInfo(source); 3458 } 3459 public RunningAppProcessInfo[] newArray(int size) { 3460 return new RunningAppProcessInfo[size]; 3461 } 3462 }; 3463 3464 private RunningAppProcessInfo(Parcel source) { 3465 readFromParcel(source); 3466 } 3467 } 3468 3469 /** 3470 * Returns a list of application processes installed on external media 3471 * that are running on the device. 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 * @return Returns a list of ApplicationInfo records, or null if none 3477 * This list ordering is not specified. 3478 * @hide 3479 */ 3480 public List<ApplicationInfo> getRunningExternalApplications() { 3481 try { 3482 return getService().getRunningExternalApplications(); 3483 } catch (RemoteException e) { 3484 throw e.rethrowFromSystemServer(); 3485 } 3486 } 3487 3488 /** 3489 * Sets the memory trim mode for a process and schedules a memory trim operation. 3490 * 3491 * <p><b>Note: this method is only intended for testing framework.</b></p> 3492 * 3493 * @return Returns true if successful. 3494 * @hide 3495 */ 3496 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3497 try { 3498 return getService().setProcessMemoryTrimLevel(process, userId, 3499 level); 3500 } catch (RemoteException e) { 3501 throw e.rethrowFromSystemServer(); 3502 } 3503 } 3504 3505 /** 3506 * Returns a list of application processes that are running on the device. 3507 * 3508 * <p><b>Note: this method is only intended for debugging or building 3509 * a user-facing process management UI.</b></p> 3510 * 3511 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3512 * running processes (it will not return an empty list). This list ordering is not 3513 * specified. 3514 */ 3515 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3516 try { 3517 return getService().getRunningAppProcesses(); 3518 } catch (RemoteException e) { 3519 throw e.rethrowFromSystemServer(); 3520 } 3521 } 3522 3523 /** 3524 * Return the importance of a given package name, based on the processes that are 3525 * currently running. The return value is one of the importance constants defined 3526 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3527 * processes that this package has code running inside of. If there are no processes 3528 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3529 * @hide 3530 */ 3531 @SystemApi @TestApi 3532 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3533 public @RunningAppProcessInfo.Importance int getPackageImportance(String packageName) { 3534 try { 3535 int procState = getService().getPackageProcessState(packageName, 3536 mContext.getOpPackageName()); 3537 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3538 } catch (RemoteException e) { 3539 throw e.rethrowFromSystemServer(); 3540 } 3541 } 3542 3543 /** 3544 * Return the importance of a given uid, based on the processes that are 3545 * currently running. The return value is one of the importance constants defined 3546 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3547 * processes that this uid has running. If there are no processes 3548 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3549 * @hide 3550 */ 3551 @SystemApi @TestApi 3552 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3553 public @RunningAppProcessInfo.Importance int getUidImportance(int uid) { 3554 try { 3555 int procState = getService().getUidProcessState(uid, 3556 mContext.getOpPackageName()); 3557 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3558 } catch (RemoteException e) { 3559 throw e.rethrowFromSystemServer(); 3560 } 3561 } 3562 3563 /** 3564 * Callback to get reports about changes to the importance of a uid. Use with 3565 * {@link #addOnUidImportanceListener}. 3566 * @hide 3567 */ 3568 @SystemApi @TestApi 3569 public interface OnUidImportanceListener { 3570 /** 3571 * The importance if a given uid has changed. Will be one of the importance 3572 * values in {@link RunningAppProcessInfo}; 3573 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3574 * when the uid is no longer running at all. This callback will happen on a thread 3575 * from a thread pool, not the main UI thread. 3576 * @param uid The uid whose importance has changed. 3577 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3578 */ 3579 void onUidImportance(int uid, @RunningAppProcessInfo.Importance int importance); 3580 } 3581 3582 /** 3583 * Start monitoring changes to the imoportance of uids running in the system. 3584 * @param listener The listener callback that will receive change reports. 3585 * @param importanceCutpoint The level of importance in which the caller is interested 3586 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3587 * is used here, you will receive a call each time a uids importance transitions between 3588 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3589 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3590 * 3591 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3592 * permission to use this feature.</p> 3593 * 3594 * @throws IllegalArgumentException If the listener is already registered. 3595 * @throws SecurityException If the caller does not hold 3596 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3597 * @hide 3598 */ 3599 @SystemApi @TestApi 3600 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3601 @RunningAppProcessInfo.Importance int importanceCutpoint) { 3602 synchronized (this) { 3603 if (mImportanceListeners.containsKey(listener)) { 3604 throw new IllegalArgumentException("Listener already registered: " + listener); 3605 } 3606 // TODO: implement the cut point in the system process to avoid IPCs. 3607 UidObserver observer = new UidObserver(listener, mContext); 3608 try { 3609 getService().registerUidObserver(observer, 3610 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3611 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3612 mContext.getOpPackageName()); 3613 } catch (RemoteException e) { 3614 throw e.rethrowFromSystemServer(); 3615 } 3616 mImportanceListeners.put(listener, observer); 3617 } 3618 } 3619 3620 /** 3621 * Remove an importance listener that was previously registered with 3622 * {@link #addOnUidImportanceListener}. 3623 * 3624 * @throws IllegalArgumentException If the listener is not registered. 3625 * @hide 3626 */ 3627 @SystemApi @TestApi 3628 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3629 synchronized (this) { 3630 UidObserver observer = mImportanceListeners.remove(listener); 3631 if (observer == null) { 3632 throw new IllegalArgumentException("Listener not registered: " + listener); 3633 } 3634 try { 3635 getService().unregisterUidObserver(observer); 3636 } catch (RemoteException e) { 3637 throw e.rethrowFromSystemServer(); 3638 } 3639 } 3640 } 3641 3642 /** 3643 * Return global memory state information for the calling process. This 3644 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3645 * only fields that will be filled in are 3646 * {@link RunningAppProcessInfo#pid}, 3647 * {@link RunningAppProcessInfo#uid}, 3648 * {@link RunningAppProcessInfo#lastTrimLevel}, 3649 * {@link RunningAppProcessInfo#importance}, 3650 * {@link RunningAppProcessInfo#lru}, and 3651 * {@link RunningAppProcessInfo#importanceReasonCode}. 3652 */ 3653 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3654 try { 3655 getService().getMyMemoryState(outState); 3656 } catch (RemoteException e) { 3657 throw e.rethrowFromSystemServer(); 3658 } 3659 } 3660 3661 /** 3662 * Return information about the memory usage of one or more processes. 3663 * 3664 * <p><b>Note: this method is only intended for debugging or building 3665 * a user-facing process management UI.</b></p> 3666 * 3667 * @param pids The pids of the processes whose memory usage is to be 3668 * retrieved. 3669 * @return Returns an array of memory information, one for each 3670 * requested pid. 3671 */ 3672 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3673 try { 3674 return getService().getProcessMemoryInfo(pids); 3675 } catch (RemoteException e) { 3676 throw e.rethrowFromSystemServer(); 3677 } 3678 } 3679 3680 /** 3681 * @deprecated This is now just a wrapper for 3682 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3683 * is no longer available to applications because it allows them to 3684 * break other applications by removing their alarms, stopping their 3685 * services, etc. 3686 */ 3687 @Deprecated 3688 public void restartPackage(String packageName) { 3689 killBackgroundProcesses(packageName); 3690 } 3691 3692 /** 3693 * Have the system immediately kill all background processes associated 3694 * with the given package. This is the same as the kernel killing those 3695 * processes to reclaim memory; the system will take care of restarting 3696 * these processes in the future as needed. 3697 * 3698 * @param packageName The name of the package whose processes are to 3699 * be killed. 3700 */ 3701 @RequiresPermission(Manifest.permission.KILL_BACKGROUND_PROCESSES) 3702 public void killBackgroundProcesses(String packageName) { 3703 try { 3704 getService().killBackgroundProcesses(packageName, 3705 UserHandle.myUserId()); 3706 } catch (RemoteException e) { 3707 throw e.rethrowFromSystemServer(); 3708 } 3709 } 3710 3711 /** 3712 * Kills the specified UID. 3713 * @param uid The UID to kill. 3714 * @param reason The reason for the kill. 3715 * 3716 * @hide 3717 */ 3718 @SystemApi 3719 @RequiresPermission(Manifest.permission.KILL_UID) 3720 public void killUid(int uid, String reason) { 3721 try { 3722 getService().killUid(UserHandle.getAppId(uid), 3723 UserHandle.getUserId(uid), reason); 3724 } catch (RemoteException e) { 3725 throw e.rethrowFromSystemServer(); 3726 } 3727 } 3728 3729 /** 3730 * Have the system perform a force stop of everything associated with 3731 * the given application package. All processes that share its uid 3732 * will be killed, all services it has running stopped, all activities 3733 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3734 * broadcast will be sent, so that any of its registered alarms can 3735 * be stopped, notifications removed, etc. 3736 * 3737 * <p>You must hold the permission 3738 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3739 * call this method. 3740 * 3741 * @param packageName The name of the package to be stopped. 3742 * @param userId The user for which the running package is to be stopped. 3743 * 3744 * @hide This is not available to third party applications due to 3745 * it allowing them to break other applications by stopping their 3746 * services, removing their alarms, etc. 3747 */ 3748 public void forceStopPackageAsUser(String packageName, int userId) { 3749 try { 3750 getService().forceStopPackage(packageName, userId); 3751 } catch (RemoteException e) { 3752 throw e.rethrowFromSystemServer(); 3753 } 3754 } 3755 3756 /** 3757 * @see #forceStopPackageAsUser(String, int) 3758 * @hide 3759 */ 3760 @SystemApi 3761 @RequiresPermission(Manifest.permission.FORCE_STOP_PACKAGES) 3762 public void forceStopPackage(String packageName) { 3763 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3764 } 3765 3766 /** 3767 * Get the device configuration attributes. 3768 */ 3769 public ConfigurationInfo getDeviceConfigurationInfo() { 3770 try { 3771 return getService().getDeviceConfigurationInfo(); 3772 } catch (RemoteException e) { 3773 throw e.rethrowFromSystemServer(); 3774 } 3775 } 3776 3777 /** 3778 * Get the preferred density of icons for the launcher. This is used when 3779 * custom drawables are created (e.g., for shortcuts). 3780 * 3781 * @return density in terms of DPI 3782 */ 3783 public int getLauncherLargeIconDensity() { 3784 final Resources res = mContext.getResources(); 3785 final int density = res.getDisplayMetrics().densityDpi; 3786 final int sw = res.getConfiguration().smallestScreenWidthDp; 3787 3788 if (sw < 600) { 3789 // Smaller than approx 7" tablets, use the regular icon size. 3790 return density; 3791 } 3792 3793 switch (density) { 3794 case DisplayMetrics.DENSITY_LOW: 3795 return DisplayMetrics.DENSITY_MEDIUM; 3796 case DisplayMetrics.DENSITY_MEDIUM: 3797 return DisplayMetrics.DENSITY_HIGH; 3798 case DisplayMetrics.DENSITY_TV: 3799 return DisplayMetrics.DENSITY_XHIGH; 3800 case DisplayMetrics.DENSITY_HIGH: 3801 return DisplayMetrics.DENSITY_XHIGH; 3802 case DisplayMetrics.DENSITY_XHIGH: 3803 return DisplayMetrics.DENSITY_XXHIGH; 3804 case DisplayMetrics.DENSITY_XXHIGH: 3805 return DisplayMetrics.DENSITY_XHIGH * 2; 3806 default: 3807 // The density is some abnormal value. Return some other 3808 // abnormal value that is a reasonable scaling of it. 3809 return (int)((density*1.5f)+.5f); 3810 } 3811 } 3812 3813 /** 3814 * Get the preferred launcher icon size. This is used when custom drawables 3815 * are created (e.g., for shortcuts). 3816 * 3817 * @return dimensions of square icons in terms of pixels 3818 */ 3819 public int getLauncherLargeIconSize() { 3820 return getLauncherLargeIconSizeInner(mContext); 3821 } 3822 3823 static int getLauncherLargeIconSizeInner(Context context) { 3824 final Resources res = context.getResources(); 3825 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3826 final int sw = res.getConfiguration().smallestScreenWidthDp; 3827 3828 if (sw < 600) { 3829 // Smaller than approx 7" tablets, use the regular icon size. 3830 return size; 3831 } 3832 3833 final int density = res.getDisplayMetrics().densityDpi; 3834 3835 switch (density) { 3836 case DisplayMetrics.DENSITY_LOW: 3837 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3838 case DisplayMetrics.DENSITY_MEDIUM: 3839 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3840 case DisplayMetrics.DENSITY_TV: 3841 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3842 case DisplayMetrics.DENSITY_HIGH: 3843 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3844 case DisplayMetrics.DENSITY_XHIGH: 3845 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3846 case DisplayMetrics.DENSITY_XXHIGH: 3847 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3848 default: 3849 // The density is some abnormal value. Return some other 3850 // abnormal value that is a reasonable scaling of it. 3851 return (int)((size*1.5f) + .5f); 3852 } 3853 } 3854 3855 /** 3856 * Returns "true" if the user interface is currently being messed with 3857 * by a monkey. 3858 */ 3859 public static boolean isUserAMonkey() { 3860 try { 3861 return getService().isUserAMonkey(); 3862 } catch (RemoteException e) { 3863 throw e.rethrowFromSystemServer(); 3864 } 3865 } 3866 3867 /** 3868 * Returns "true" if device is running in a test harness. 3869 */ 3870 public static boolean isRunningInTestHarness() { 3871 return SystemProperties.getBoolean("ro.test_harness", false); 3872 } 3873 3874 /** 3875 * Returns the launch count of each installed package. 3876 * 3877 * @hide 3878 */ 3879 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3880 try { 3881 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3882 ServiceManager.getService("usagestats")); 3883 if (usageStatsService == null) { 3884 return new HashMap<String, Integer>(); 3885 } 3886 3887 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3888 ActivityThread.currentPackageName()); 3889 if (allPkgUsageStats == null) { 3890 return new HashMap<String, Integer>(); 3891 } 3892 3893 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3894 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3895 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3896 } 3897 3898 return launchCounts; 3899 } catch (RemoteException e) { 3900 Log.w(TAG, "Could not query launch counts", e); 3901 return new HashMap<String, Integer>(); 3902 } 3903 }*/ 3904 3905 /** @hide */ 3906 public static int checkComponentPermission(String permission, int uid, 3907 int owningUid, boolean exported) { 3908 // Root, system server get to do everything. 3909 final int appId = UserHandle.getAppId(uid); 3910 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3911 return PackageManager.PERMISSION_GRANTED; 3912 } 3913 // Isolated processes don't get any permissions. 3914 if (UserHandle.isIsolated(uid)) { 3915 return PackageManager.PERMISSION_DENIED; 3916 } 3917 // If there is a uid that owns whatever is being accessed, it has 3918 // blanket access to it regardless of the permissions it requires. 3919 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3920 return PackageManager.PERMISSION_GRANTED; 3921 } 3922 // If the target is not exported, then nobody else can get to it. 3923 if (!exported) { 3924 /* 3925 RuntimeException here = new RuntimeException("here"); 3926 here.fillInStackTrace(); 3927 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3928 here); 3929 */ 3930 return PackageManager.PERMISSION_DENIED; 3931 } 3932 if (permission == null) { 3933 return PackageManager.PERMISSION_GRANTED; 3934 } 3935 try { 3936 return AppGlobals.getPackageManager() 3937 .checkUidPermission(permission, uid); 3938 } catch (RemoteException e) { 3939 throw e.rethrowFromSystemServer(); 3940 } 3941 } 3942 3943 /** @hide */ 3944 public static int checkUidPermission(String permission, int uid) { 3945 try { 3946 return AppGlobals.getPackageManager() 3947 .checkUidPermission(permission, uid); 3948 } catch (RemoteException e) { 3949 throw e.rethrowFromSystemServer(); 3950 } 3951 } 3952 3953 /** 3954 * @hide 3955 * Helper for dealing with incoming user arguments to system service calls. 3956 * Takes care of checking permissions and converting USER_CURRENT to the 3957 * actual current user. 3958 * 3959 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3960 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3961 * @param userId The user id argument supplied by the caller -- this is the user 3962 * they want to run as. 3963 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3964 * to get a USER_ALL returned and deal with it correctly. If false, 3965 * an exception will be thrown if USER_ALL is supplied. 3966 * @param requireFull If true, the caller must hold 3967 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3968 * different user than their current process; otherwise they must hold 3969 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3970 * @param name Optional textual name of the incoming call; only for generating error messages. 3971 * @param callerPackage Optional package name of caller; only for error messages. 3972 * 3973 * @return Returns the user ID that the call should run as. Will always be a concrete 3974 * user number, unless <var>allowAll</var> is true in which case it could also be 3975 * USER_ALL. 3976 */ 3977 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3978 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3979 if (UserHandle.getUserId(callingUid) == userId) { 3980 return userId; 3981 } 3982 try { 3983 return getService().handleIncomingUser(callingPid, 3984 callingUid, userId, allowAll, requireFull, name, callerPackage); 3985 } catch (RemoteException e) { 3986 throw e.rethrowFromSystemServer(); 3987 } 3988 } 3989 3990 /** 3991 * Gets the userId of the current foreground user. Requires system permissions. 3992 * @hide 3993 */ 3994 @SystemApi 3995 public static int getCurrentUser() { 3996 UserInfo ui; 3997 try { 3998 ui = getService().getCurrentUser(); 3999 return ui != null ? ui.id : 0; 4000 } catch (RemoteException e) { 4001 throw e.rethrowFromSystemServer(); 4002 } 4003 } 4004 4005 /** 4006 * @param userid the user's id. Zero indicates the default user. 4007 * @hide 4008 */ 4009 public boolean switchUser(int userid) { 4010 try { 4011 return getService().switchUser(userid); 4012 } catch (RemoteException e) { 4013 throw e.rethrowFromSystemServer(); 4014 } 4015 } 4016 4017 /** 4018 * Logs out current current foreground user by switching to the system user and stopping the 4019 * user being switched from. 4020 * @hide 4021 */ 4022 public static void logoutCurrentUser() { 4023 int currentUser = ActivityManager.getCurrentUser(); 4024 if (currentUser != UserHandle.USER_SYSTEM) { 4025 try { 4026 getService().switchUser(UserHandle.USER_SYSTEM); 4027 getService().stopUser(currentUser, /* force= */ false, null); 4028 } catch (RemoteException e) { 4029 e.rethrowFromSystemServer(); 4030 } 4031 } 4032 } 4033 4034 /** {@hide} */ 4035 public static final int FLAG_OR_STOPPED = 1 << 0; 4036 /** {@hide} */ 4037 public static final int FLAG_AND_LOCKED = 1 << 1; 4038 /** {@hide} */ 4039 public static final int FLAG_AND_UNLOCKED = 1 << 2; 4040 /** {@hide} */ 4041 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 4042 4043 /** 4044 * Return whether the given user is actively running. This means that 4045 * the user is in the "started" state, not "stopped" -- it is currently 4046 * allowed to run code through scheduled alarms, receiving broadcasts, 4047 * etc. A started user may be either the current foreground user or a 4048 * background user; the result here does not distinguish between the two. 4049 * @param userId the user's id. Zero indicates the default user. 4050 * @hide 4051 */ 4052 public boolean isUserRunning(int userId) { 4053 try { 4054 return getService().isUserRunning(userId, 0); 4055 } catch (RemoteException e) { 4056 throw e.rethrowFromSystemServer(); 4057 } 4058 } 4059 4060 /** {@hide} */ 4061 public boolean isVrModePackageEnabled(ComponentName component) { 4062 try { 4063 return getService().isVrModePackageEnabled(component); 4064 } catch (RemoteException e) { 4065 throw e.rethrowFromSystemServer(); 4066 } 4067 } 4068 4069 /** 4070 * Perform a system dump of various state associated with the given application 4071 * package name. This call blocks while the dump is being performed, so should 4072 * not be done on a UI thread. The data will be written to the given file 4073 * descriptor as text. 4074 * @param fd The file descriptor that the dump should be written to. The file 4075 * descriptor is <em>not</em> closed by this function; the caller continues to 4076 * own it. 4077 * @param packageName The name of the package that is to be dumped. 4078 */ 4079 @RequiresPermission(Manifest.permission.DUMP) 4080 public void dumpPackageState(FileDescriptor fd, String packageName) { 4081 dumpPackageStateStatic(fd, packageName); 4082 } 4083 4084 /** 4085 * @hide 4086 */ 4087 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 4088 FileOutputStream fout = new FileOutputStream(fd); 4089 PrintWriter pw = new FastPrintWriter(fout); 4090 dumpService(pw, fd, "package", new String[] { packageName }); 4091 pw.println(); 4092 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 4093 "-a", "package", packageName }); 4094 pw.println(); 4095 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 4096 pw.println(); 4097 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 4098 pw.println(); 4099 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 4100 pw.println(); 4101 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 4102 pw.flush(); 4103 } 4104 4105 /** 4106 * @hide 4107 */ 4108 public static boolean isSystemReady() { 4109 if (!sSystemReady) { 4110 if (ActivityThread.isSystem()) { 4111 sSystemReady = 4112 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 4113 } else { 4114 // Since this is being called from outside system server, system should be 4115 // ready by now. 4116 sSystemReady = true; 4117 } 4118 } 4119 return sSystemReady; 4120 } 4121 4122 /** 4123 * @hide 4124 */ 4125 public static void broadcastStickyIntent(Intent intent, int userId) { 4126 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 4127 } 4128 4129 /** 4130 * Convenience for sending a sticky broadcast. For internal use only. 4131 * 4132 * @hide 4133 */ 4134 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 4135 try { 4136 getService().broadcastIntent( 4137 null, intent, null, null, Activity.RESULT_OK, null, null, 4138 null /*permission*/, appOp, null, false, true, userId); 4139 } catch (RemoteException ex) { 4140 } 4141 } 4142 4143 /** 4144 * @hide 4145 */ 4146 public static void noteWakeupAlarm(PendingIntent ps, int sourceUid, String sourcePkg, 4147 String tag) { 4148 try { 4149 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, 4150 sourceUid, sourcePkg, tag); 4151 } catch (RemoteException ex) { 4152 } 4153 } 4154 4155 /** 4156 * @hide 4157 */ 4158 public static void noteAlarmStart(PendingIntent ps, int sourceUid, String tag) { 4159 try { 4160 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4161 } catch (RemoteException ex) { 4162 } 4163 } 4164 4165 /** 4166 * @hide 4167 */ 4168 public static void noteAlarmFinish(PendingIntent ps, int sourceUid, String tag) { 4169 try { 4170 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4171 } catch (RemoteException ex) { 4172 } 4173 } 4174 4175 /** 4176 * @hide 4177 */ 4178 public static IActivityManager getService() { 4179 return IActivityManagerSingleton.get(); 4180 } 4181 4182 private static final Singleton<IActivityManager> IActivityManagerSingleton = 4183 new Singleton<IActivityManager>() { 4184 @Override 4185 protected IActivityManager create() { 4186 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 4187 final IActivityManager am = IActivityManager.Stub.asInterface(b); 4188 return am; 4189 } 4190 }; 4191 4192 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 4193 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 4194 IBinder service = ServiceManager.checkService(name); 4195 if (service == null) { 4196 pw.println(" (Service not found)"); 4197 return; 4198 } 4199 TransferPipe tp = null; 4200 try { 4201 pw.flush(); 4202 tp = new TransferPipe(); 4203 tp.setBufferPrefix(" "); 4204 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 4205 tp.go(fd, 10000); 4206 } catch (Throwable e) { 4207 if (tp != null) { 4208 tp.kill(); 4209 } 4210 pw.println("Failure dumping service:"); 4211 e.printStackTrace(pw); 4212 } 4213 } 4214 4215 /** 4216 * Request that the system start watching for the calling process to exceed a pss 4217 * size as given here. Once called, the system will look for any occasions where it 4218 * sees the associated process with a larger pss size and, when this happens, automatically 4219 * pull a heap dump from it and allow the user to share the data. Note that this request 4220 * continues running even if the process is killed and restarted. To remove the watch, 4221 * use {@link #clearWatchHeapLimit()}. 4222 * 4223 * <p>This API only work if the calling process has been marked as 4224 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 4225 * (userdebug or eng) build.</p> 4226 * 4227 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 4228 * handle heap limit reports themselves.</p> 4229 * 4230 * @param pssSize The size in bytes to set the limit at. 4231 */ 4232 public void setWatchHeapLimit(long pssSize) { 4233 try { 4234 getService().setDumpHeapDebugLimit(null, 0, pssSize, 4235 mContext.getPackageName()); 4236 } catch (RemoteException e) { 4237 throw e.rethrowFromSystemServer(); 4238 } 4239 } 4240 4241 /** 4242 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 4243 * If your package has an activity handling this action, it will be launched with the 4244 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 4245 * match the activty must support this action and a MIME type of "*/*". 4246 */ 4247 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 4248 4249 /** 4250 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 4251 */ 4252 public void clearWatchHeapLimit() { 4253 try { 4254 getService().setDumpHeapDebugLimit(null, 0, 0, null); 4255 } catch (RemoteException e) { 4256 throw e.rethrowFromSystemServer(); 4257 } 4258 } 4259 4260 /** 4261 * @hide 4262 */ 4263 public void startLockTaskMode(int taskId) { 4264 try { 4265 getService().startLockTaskModeById(taskId); 4266 } catch (RemoteException e) { 4267 throw e.rethrowFromSystemServer(); 4268 } 4269 } 4270 4271 /** 4272 * @hide 4273 */ 4274 public void stopLockTaskMode() { 4275 try { 4276 getService().stopLockTaskMode(); 4277 } catch (RemoteException e) { 4278 throw e.rethrowFromSystemServer(); 4279 } 4280 } 4281 4282 /** 4283 * Return whether currently in lock task mode. When in this mode 4284 * no new tasks can be created or switched to. 4285 * 4286 * @see Activity#startLockTask() 4287 * 4288 * @deprecated Use {@link #getLockTaskModeState} instead. 4289 */ 4290 @Deprecated 4291 public boolean isInLockTaskMode() { 4292 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 4293 } 4294 4295 /** 4296 * Return the current state of task locking. The three possible outcomes 4297 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 4298 * and {@link #LOCK_TASK_MODE_PINNED}. 4299 * 4300 * @see Activity#startLockTask() 4301 */ 4302 public int getLockTaskModeState() { 4303 try { 4304 return getService().getLockTaskModeState(); 4305 } catch (RemoteException e) { 4306 throw e.rethrowFromSystemServer(); 4307 } 4308 } 4309 4310 /** 4311 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 4312 * thread can be a VR thread in a process at a time, and that thread may be subject to 4313 * restrictions on the amount of time it can run. 4314 * 4315 * If persistent VR mode is set, whatever thread has been granted aggressive scheduling via this 4316 * method will return to normal operation, and calling this method will do nothing while 4317 * persistent VR mode is enabled. 4318 * 4319 * To reset the VR thread for an application, a tid of 0 can be passed. 4320 * 4321 * @see android.os.Process#myTid() 4322 * @param tid tid of the VR thread 4323 */ 4324 public static void setVrThread(int tid) { 4325 try { 4326 getService().setVrThread(tid); 4327 } catch (RemoteException e) { 4328 // pass 4329 } 4330 } 4331 4332 /** 4333 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads that persist 4334 * beyond a single process. Only one thread can be a 4335 * persistent VR thread at a time, and that thread may be subject to restrictions on the amount 4336 * of time it can run. Calling this method will disable aggressive scheduling for non-persistent 4337 * VR threads set via {@link #setVrThread}. If persistent VR mode is disabled then the 4338 * persistent VR thread loses its new scheduling priority; this method must be called again to 4339 * set the persistent thread. 4340 * 4341 * To reset the persistent VR thread, a tid of 0 can be passed. 4342 * 4343 * @see android.os.Process#myTid() 4344 * @param tid tid of the VR thread 4345 * @hide 4346 */ 4347 @RequiresPermission(Manifest.permission.RESTRICTED_VR_ACCESS) 4348 public static void setPersistentVrThread(int tid) { 4349 try { 4350 getService().setPersistentVrThread(tid); 4351 } catch (RemoteException e) { 4352 // pass 4353 } 4354 } 4355 4356 /** 4357 * The AppTask allows you to manage your own application's tasks. 4358 * See {@link android.app.ActivityManager#getAppTasks()} 4359 */ 4360 public static class AppTask { 4361 private IAppTask mAppTaskImpl; 4362 4363 /** @hide */ 4364 public AppTask(IAppTask task) { 4365 mAppTaskImpl = task; 4366 } 4367 4368 /** 4369 * Finishes all activities in this task and removes it from the recent tasks list. 4370 */ 4371 public void finishAndRemoveTask() { 4372 try { 4373 mAppTaskImpl.finishAndRemoveTask(); 4374 } catch (RemoteException e) { 4375 throw e.rethrowFromSystemServer(); 4376 } 4377 } 4378 4379 /** 4380 * Get the RecentTaskInfo associated with this task. 4381 * 4382 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 4383 */ 4384 public RecentTaskInfo getTaskInfo() { 4385 try { 4386 return mAppTaskImpl.getTaskInfo(); 4387 } catch (RemoteException e) { 4388 throw e.rethrowFromSystemServer(); 4389 } 4390 } 4391 4392 /** 4393 * Bring this task to the foreground. If it contains activities, they will be 4394 * brought to the foreground with it and their instances re-created if needed. 4395 * If it doesn't contain activities, the root activity of the task will be 4396 * re-launched. 4397 */ 4398 public void moveToFront() { 4399 try { 4400 mAppTaskImpl.moveToFront(); 4401 } catch (RemoteException e) { 4402 throw e.rethrowFromSystemServer(); 4403 } 4404 } 4405 4406 /** 4407 * Start an activity in this task. Brings the task to the foreground. If this task 4408 * is not currently active (that is, its id < 0), then a new activity for the given 4409 * Intent will be launched as the root of the task and the task brought to the 4410 * foreground. Otherwise, if this task is currently active and the Intent does not specify 4411 * an activity to launch in a new task, then a new activity for the given Intent will 4412 * be launched on top of the task and the task brought to the foreground. If this 4413 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 4414 * or would otherwise be launched in to a new task, then the activity not launched but 4415 * this task be brought to the foreground and a new intent delivered to the top 4416 * activity if appropriate. 4417 * 4418 * <p>In other words, you generally want to use an Intent here that does not specify 4419 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 4420 * and let the system do the right thing.</p> 4421 * 4422 * @param intent The Intent describing the new activity to be launched on the task. 4423 * @param options Optional launch options. 4424 * 4425 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 4426 */ 4427 public void startActivity(Context context, Intent intent, Bundle options) { 4428 ActivityThread thread = ActivityThread.currentActivityThread(); 4429 thread.getInstrumentation().execStartActivityFromAppTask(context, 4430 thread.getApplicationThread(), mAppTaskImpl, intent, options); 4431 } 4432 4433 /** 4434 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 4435 * Intent of this AppTask. 4436 * 4437 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 4438 * be set; otherwise, it will be cleared. 4439 */ 4440 public void setExcludeFromRecents(boolean exclude) { 4441 try { 4442 mAppTaskImpl.setExcludeFromRecents(exclude); 4443 } catch (RemoteException e) { 4444 throw e.rethrowFromSystemServer(); 4445 } 4446 } 4447 } 4448} 4449