ActivityManager.java revision 7f9368637c8d2726b87cbe184b240512055da037
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() { 1143 return !isLowRamDeviceStatic() 1144 && Resources.getSystem().getBoolean( 1145 com.android.internal.R.bool.config_supportsMultiWindow); 1146 } 1147 1148 /** 1149 * Returns true if the system supports split screen multi-window. 1150 * @hide 1151 */ 1152 static public boolean supportsSplitScreenMultiWindow() { 1153 return supportsMultiWindow() 1154 && Resources.getSystem().getBoolean( 1155 com.android.internal.R.bool.config_supportsSplitScreenMultiWindow); 1156 } 1157 1158 /** @removed */ 1159 @Deprecated 1160 public static int getMaxNumPictureInPictureActions() { 1161 return 3; 1162 } 1163 1164 /** 1165 * Information you can set and retrieve about the current activity within the recent task list. 1166 */ 1167 public static class TaskDescription implements Parcelable { 1168 /** @hide */ 1169 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 1170 private static final String ATTR_TASKDESCRIPTIONLABEL = 1171 ATTR_TASKDESCRIPTION_PREFIX + "label"; 1172 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 1173 ATTR_TASKDESCRIPTION_PREFIX + "color"; 1174 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 1175 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 1176 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 1177 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 1178 1179 private String mLabel; 1180 private Bitmap mIcon; 1181 private String mIconFilename; 1182 private int mColorPrimary; 1183 private int mColorBackground; 1184 private int mStatusBarColor; 1185 private int mNavigationBarColor; 1186 1187 /** 1188 * Creates the TaskDescription to the specified values. 1189 * 1190 * @param label A label and description of the current state of this task. 1191 * @param icon An icon that represents the current state of this task. 1192 * @param colorPrimary A color to override the theme's primary color. This color must be 1193 * opaque. 1194 */ 1195 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 1196 this(label, icon, null, colorPrimary, 0, 0, 0); 1197 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1198 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1199 } 1200 } 1201 1202 /** 1203 * Creates the TaskDescription to the specified values. 1204 * 1205 * @param label A label and description of the current state of this activity. 1206 * @param icon An icon that represents the current state of this activity. 1207 */ 1208 public TaskDescription(String label, Bitmap icon) { 1209 this(label, icon, null, 0, 0, 0, 0); 1210 } 1211 1212 /** 1213 * Creates the TaskDescription to the specified values. 1214 * 1215 * @param label A label and description of the current state of this activity. 1216 */ 1217 public TaskDescription(String label) { 1218 this(label, null, null, 0, 0, 0, 0); 1219 } 1220 1221 /** 1222 * Creates an empty TaskDescription. 1223 */ 1224 public TaskDescription() { 1225 this(null, null, null, 0, 0, 0, 0); 1226 } 1227 1228 /** @hide */ 1229 public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary, 1230 int colorBackground, int statusBarColor, int navigationBarColor) { 1231 mLabel = label; 1232 mIcon = icon; 1233 mIconFilename = iconFilename; 1234 mColorPrimary = colorPrimary; 1235 mColorBackground = colorBackground; 1236 mStatusBarColor = statusBarColor; 1237 mNavigationBarColor = navigationBarColor; 1238 } 1239 1240 /** 1241 * Creates a copy of another TaskDescription. 1242 */ 1243 public TaskDescription(TaskDescription td) { 1244 copyFrom(td); 1245 } 1246 1247 /** 1248 * Copies this the values from another TaskDescription. 1249 * @hide 1250 */ 1251 public void copyFrom(TaskDescription other) { 1252 mLabel = other.mLabel; 1253 mIcon = other.mIcon; 1254 mIconFilename = other.mIconFilename; 1255 mColorPrimary = other.mColorPrimary; 1256 mColorBackground = other.mColorBackground; 1257 mStatusBarColor = other.mStatusBarColor; 1258 mNavigationBarColor = other.mNavigationBarColor; 1259 } 1260 1261 /** 1262 * Copies this the values from another TaskDescription, but preserves the hidden fields 1263 * if they weren't set on {@code other} 1264 * @hide 1265 */ 1266 public void copyFromPreserveHiddenFields(TaskDescription other) { 1267 mLabel = other.mLabel; 1268 mIcon = other.mIcon; 1269 mIconFilename = other.mIconFilename; 1270 mColorPrimary = other.mColorPrimary; 1271 if (other.mColorBackground != 0) { 1272 mColorBackground = other.mColorBackground; 1273 } 1274 if (other.mStatusBarColor != 0) { 1275 mStatusBarColor = other.mStatusBarColor; 1276 } 1277 if (other.mNavigationBarColor != 0) { 1278 mNavigationBarColor = other.mNavigationBarColor; 1279 } 1280 } 1281 1282 private TaskDescription(Parcel source) { 1283 readFromParcel(source); 1284 } 1285 1286 /** 1287 * Sets the label for this task description. 1288 * @hide 1289 */ 1290 public void setLabel(String label) { 1291 mLabel = label; 1292 } 1293 1294 /** 1295 * Sets the primary color for this task description. 1296 * @hide 1297 */ 1298 public void setPrimaryColor(int primaryColor) { 1299 // Ensure that the given color is valid 1300 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1301 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1302 } 1303 mColorPrimary = primaryColor; 1304 } 1305 1306 /** 1307 * Sets the background color for this task description. 1308 * @hide 1309 */ 1310 public void setBackgroundColor(int backgroundColor) { 1311 // Ensure that the given color is valid 1312 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1313 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1314 } 1315 mColorBackground = backgroundColor; 1316 } 1317 1318 /** 1319 * @hide 1320 */ 1321 public void setStatusBarColor(int statusBarColor) { 1322 mStatusBarColor = statusBarColor; 1323 } 1324 1325 /** 1326 * @hide 1327 */ 1328 public void setNavigationBarColor(int navigationBarColor) { 1329 mNavigationBarColor = navigationBarColor; 1330 } 1331 1332 /** 1333 * Sets the icon for this task description. 1334 * @hide 1335 */ 1336 public void setIcon(Bitmap icon) { 1337 mIcon = icon; 1338 } 1339 1340 /** 1341 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1342 * bitmap. 1343 * @hide 1344 */ 1345 public void setIconFilename(String iconFilename) { 1346 mIconFilename = iconFilename; 1347 mIcon = null; 1348 } 1349 1350 /** 1351 * @return The label and description of the current state of this task. 1352 */ 1353 public String getLabel() { 1354 return mLabel; 1355 } 1356 1357 /** 1358 * @return The icon that represents the current state of this task. 1359 */ 1360 public Bitmap getIcon() { 1361 if (mIcon != null) { 1362 return mIcon; 1363 } 1364 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1365 } 1366 1367 /** @hide */ 1368 public String getIconFilename() { 1369 return mIconFilename; 1370 } 1371 1372 /** @hide */ 1373 public Bitmap getInMemoryIcon() { 1374 return mIcon; 1375 } 1376 1377 /** @hide */ 1378 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1379 if (iconFilename != null) { 1380 try { 1381 return getService().getTaskDescriptionIcon(iconFilename, 1382 userId); 1383 } catch (RemoteException e) { 1384 throw e.rethrowFromSystemServer(); 1385 } 1386 } 1387 return null; 1388 } 1389 1390 /** 1391 * @return The color override on the theme's primary color. 1392 */ 1393 public int getPrimaryColor() { 1394 return mColorPrimary; 1395 } 1396 1397 /** 1398 * @return The background color. 1399 * @hide 1400 */ 1401 public int getBackgroundColor() { 1402 return mColorBackground; 1403 } 1404 1405 /** 1406 * @hide 1407 */ 1408 public int getStatusBarColor() { 1409 return mStatusBarColor; 1410 } 1411 1412 /** 1413 * @hide 1414 */ 1415 public int getNavigationBarColor() { 1416 return mNavigationBarColor; 1417 } 1418 1419 /** @hide */ 1420 public void saveToXml(XmlSerializer out) throws IOException { 1421 if (mLabel != null) { 1422 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1423 } 1424 if (mColorPrimary != 0) { 1425 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1426 Integer.toHexString(mColorPrimary)); 1427 } 1428 if (mColorBackground != 0) { 1429 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1430 Integer.toHexString(mColorBackground)); 1431 } 1432 if (mIconFilename != null) { 1433 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 1434 } 1435 } 1436 1437 /** @hide */ 1438 public void restoreFromXml(String attrName, String attrValue) { 1439 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1440 setLabel(attrValue); 1441 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1442 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1443 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1444 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1445 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 1446 setIconFilename(attrValue); 1447 } 1448 } 1449 1450 @Override 1451 public int describeContents() { 1452 return 0; 1453 } 1454 1455 @Override 1456 public void writeToParcel(Parcel dest, int flags) { 1457 if (mLabel == null) { 1458 dest.writeInt(0); 1459 } else { 1460 dest.writeInt(1); 1461 dest.writeString(mLabel); 1462 } 1463 if (mIcon == null) { 1464 dest.writeInt(0); 1465 } else { 1466 dest.writeInt(1); 1467 mIcon.writeToParcel(dest, 0); 1468 } 1469 dest.writeInt(mColorPrimary); 1470 dest.writeInt(mColorBackground); 1471 dest.writeInt(mStatusBarColor); 1472 dest.writeInt(mNavigationBarColor); 1473 if (mIconFilename == null) { 1474 dest.writeInt(0); 1475 } else { 1476 dest.writeInt(1); 1477 dest.writeString(mIconFilename); 1478 } 1479 } 1480 1481 public void readFromParcel(Parcel source) { 1482 mLabel = source.readInt() > 0 ? source.readString() : null; 1483 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1484 mColorPrimary = source.readInt(); 1485 mColorBackground = source.readInt(); 1486 mStatusBarColor = source.readInt(); 1487 mNavigationBarColor = source.readInt(); 1488 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1489 } 1490 1491 public static final Creator<TaskDescription> CREATOR 1492 = new Creator<TaskDescription>() { 1493 public TaskDescription createFromParcel(Parcel source) { 1494 return new TaskDescription(source); 1495 } 1496 public TaskDescription[] newArray(int size) { 1497 return new TaskDescription[size]; 1498 } 1499 }; 1500 1501 @Override 1502 public String toString() { 1503 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1504 " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary + 1505 " colorBackground: " + mColorBackground + 1506 " statusBarColor: " + mColorBackground + 1507 " navigationBarColor: " + mNavigationBarColor; 1508 } 1509 } 1510 1511 /** 1512 * Information you can retrieve about tasks that the user has most recently 1513 * started or visited. 1514 */ 1515 public static class RecentTaskInfo implements Parcelable { 1516 /** 1517 * If this task is currently running, this is the identifier for it. 1518 * If it is not running, this will be -1. 1519 */ 1520 public int id; 1521 1522 /** 1523 * The true identifier of this task, valid even if it is not running. 1524 */ 1525 public int persistentId; 1526 1527 /** 1528 * The original Intent used to launch the task. You can use this 1529 * Intent to re-launch the task (if it is no longer running) or bring 1530 * the current task to the front. 1531 */ 1532 public Intent baseIntent; 1533 1534 /** 1535 * If this task was started from an alias, this is the actual 1536 * activity component that was initially started; the component of 1537 * the baseIntent in this case is the name of the actual activity 1538 * implementation that the alias referred to. Otherwise, this is null. 1539 */ 1540 public ComponentName origActivity; 1541 1542 /** 1543 * The actual activity component that started the task. 1544 * @hide 1545 */ 1546 @Nullable 1547 public ComponentName realActivity; 1548 1549 /** 1550 * Description of the task's last state. 1551 */ 1552 public CharSequence description; 1553 1554 /** 1555 * The id of the ActivityStack this Task was on most recently. 1556 * @hide 1557 */ 1558 public int stackId; 1559 1560 /** 1561 * The id of the user the task was running as. 1562 * @hide 1563 */ 1564 public int userId; 1565 1566 /** 1567 * The first time this task was active. 1568 * @hide 1569 */ 1570 public long firstActiveTime; 1571 1572 /** 1573 * The last time this task was active. 1574 * @hide 1575 */ 1576 public long lastActiveTime; 1577 1578 /** 1579 * The recent activity values for the highest activity in the stack to have set the values. 1580 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1581 */ 1582 public TaskDescription taskDescription; 1583 1584 /** 1585 * Task affiliation for grouping with other tasks. 1586 */ 1587 public int affiliatedTaskId; 1588 1589 /** 1590 * Task affiliation color of the source task with the affiliated task id. 1591 * 1592 * @hide 1593 */ 1594 public int affiliatedTaskColor; 1595 1596 /** 1597 * The component launched as the first activity in the task. 1598 * This can be considered the "application" of this task. 1599 */ 1600 public ComponentName baseActivity; 1601 1602 /** 1603 * The activity component at the top of the history stack of the task. 1604 * This is what the user is currently doing. 1605 */ 1606 public ComponentName topActivity; 1607 1608 /** 1609 * Number of activities in this task. 1610 */ 1611 public int numActivities; 1612 1613 /** 1614 * The bounds of the task. 1615 * @hide 1616 */ 1617 public Rect bounds; 1618 1619 /** 1620 * True if the task can go in the docked stack. 1621 * @hide 1622 */ 1623 public boolean supportsSplitScreenMultiWindow; 1624 1625 /** 1626 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1627 * @hide 1628 */ 1629 public int resizeMode; 1630 1631 public RecentTaskInfo() { 1632 } 1633 1634 @Override 1635 public int describeContents() { 1636 return 0; 1637 } 1638 1639 @Override 1640 public void writeToParcel(Parcel dest, int flags) { 1641 dest.writeInt(id); 1642 dest.writeInt(persistentId); 1643 if (baseIntent != null) { 1644 dest.writeInt(1); 1645 baseIntent.writeToParcel(dest, 0); 1646 } else { 1647 dest.writeInt(0); 1648 } 1649 ComponentName.writeToParcel(origActivity, dest); 1650 ComponentName.writeToParcel(realActivity, dest); 1651 TextUtils.writeToParcel(description, dest, 1652 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1653 if (taskDescription != null) { 1654 dest.writeInt(1); 1655 taskDescription.writeToParcel(dest, 0); 1656 } else { 1657 dest.writeInt(0); 1658 } 1659 dest.writeInt(stackId); 1660 dest.writeInt(userId); 1661 dest.writeLong(firstActiveTime); 1662 dest.writeLong(lastActiveTime); 1663 dest.writeInt(affiliatedTaskId); 1664 dest.writeInt(affiliatedTaskColor); 1665 ComponentName.writeToParcel(baseActivity, dest); 1666 ComponentName.writeToParcel(topActivity, dest); 1667 dest.writeInt(numActivities); 1668 if (bounds != null) { 1669 dest.writeInt(1); 1670 bounds.writeToParcel(dest, 0); 1671 } else { 1672 dest.writeInt(0); 1673 } 1674 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1675 dest.writeInt(resizeMode); 1676 } 1677 1678 public void readFromParcel(Parcel source) { 1679 id = source.readInt(); 1680 persistentId = source.readInt(); 1681 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1682 origActivity = ComponentName.readFromParcel(source); 1683 realActivity = ComponentName.readFromParcel(source); 1684 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1685 taskDescription = source.readInt() > 0 ? 1686 TaskDescription.CREATOR.createFromParcel(source) : null; 1687 stackId = source.readInt(); 1688 userId = source.readInt(); 1689 firstActiveTime = source.readLong(); 1690 lastActiveTime = source.readLong(); 1691 affiliatedTaskId = source.readInt(); 1692 affiliatedTaskColor = source.readInt(); 1693 baseActivity = ComponentName.readFromParcel(source); 1694 topActivity = ComponentName.readFromParcel(source); 1695 numActivities = source.readInt(); 1696 bounds = source.readInt() > 0 ? 1697 Rect.CREATOR.createFromParcel(source) : null; 1698 supportsSplitScreenMultiWindow = source.readInt() == 1; 1699 resizeMode = source.readInt(); 1700 } 1701 1702 public static final Creator<RecentTaskInfo> CREATOR 1703 = new Creator<RecentTaskInfo>() { 1704 public RecentTaskInfo createFromParcel(Parcel source) { 1705 return new RecentTaskInfo(source); 1706 } 1707 public RecentTaskInfo[] newArray(int size) { 1708 return new RecentTaskInfo[size]; 1709 } 1710 }; 1711 1712 private RecentTaskInfo(Parcel source) { 1713 readFromParcel(source); 1714 } 1715 } 1716 1717 /** 1718 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1719 * that have set their 1720 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1721 */ 1722 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1723 1724 /** 1725 * Provides a list that does not contain any 1726 * recent tasks that currently are not available to the user. 1727 */ 1728 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1729 1730 /** 1731 * Provides a list that contains recent tasks for all 1732 * profiles of a user. 1733 * @hide 1734 */ 1735 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1736 1737 /** 1738 * Ignores all tasks that are on the home stack. 1739 * @hide 1740 */ 1741 public static final int RECENT_IGNORE_HOME_AND_RECENTS_STACK_TASKS = 0x0008; 1742 1743 /** 1744 * Ignores the top task in the docked stack. 1745 * @hide 1746 */ 1747 public static final int RECENT_INGORE_DOCKED_STACK_TOP_TASK = 0x0010; 1748 1749 /** 1750 * Ignores all tasks that are on the pinned stack. 1751 * @hide 1752 */ 1753 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1754 1755 /** 1756 * <p></p>Return a list of the tasks that the user has recently launched, with 1757 * the most recent being first and older ones after in order. 1758 * 1759 * <p><b>Note: this method is only intended for debugging and presenting 1760 * task management user interfaces</b>. This should never be used for 1761 * core logic in an application, such as deciding between different 1762 * behaviors based on the information found here. Such uses are 1763 * <em>not</em> supported, and will likely break in the future. For 1764 * example, if multiple applications can be actively running at the 1765 * same time, assumptions made about the meaning of the data here for 1766 * purposes of control flow will be incorrect.</p> 1767 * 1768 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1769 * no longer available to third party applications: the introduction of 1770 * document-centric recents means 1771 * it can leak personal information to the caller. For backwards compatibility, 1772 * it will still return a small subset of its data: at least the caller's 1773 * own tasks (though see {@link #getAppTasks()} for the correct supported 1774 * way to retrieve that information), and possibly some other tasks 1775 * such as home that are known to not be sensitive. 1776 * 1777 * @param maxNum The maximum number of entries to return in the list. The 1778 * actual number returned may be smaller, depending on how many tasks the 1779 * user has started and the maximum number the system can remember. 1780 * @param flags Information about what to return. May be any combination 1781 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1782 * 1783 * @return Returns a list of RecentTaskInfo records describing each of 1784 * the recent tasks. 1785 */ 1786 @Deprecated 1787 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1788 throws SecurityException { 1789 try { 1790 return getService().getRecentTasks(maxNum, 1791 flags, UserHandle.myUserId()).getList(); 1792 } catch (RemoteException e) { 1793 throw e.rethrowFromSystemServer(); 1794 } 1795 } 1796 1797 /** 1798 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1799 * specific user. It requires holding 1800 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1801 * @param maxNum The maximum number of entries to return in the list. The 1802 * actual number returned may be smaller, depending on how many tasks the 1803 * user has started and the maximum number the system can remember. 1804 * @param flags Information about what to return. May be any combination 1805 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1806 * 1807 * @return Returns a list of RecentTaskInfo records describing each of 1808 * the recent tasks. Most recently activated tasks go first. 1809 * 1810 * @hide 1811 */ 1812 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1813 throws SecurityException { 1814 try { 1815 return getService().getRecentTasks(maxNum, 1816 flags, userId).getList(); 1817 } catch (RemoteException e) { 1818 throw e.rethrowFromSystemServer(); 1819 } 1820 } 1821 1822 /** 1823 * Information you can retrieve about a particular task that is currently 1824 * "running" in the system. Note that a running task does not mean the 1825 * given task actually has a process it is actively running in; it simply 1826 * means that the user has gone to it and never closed it, but currently 1827 * the system may have killed its process and is only holding on to its 1828 * last state in order to restart it when the user returns. 1829 */ 1830 public static class RunningTaskInfo implements Parcelable { 1831 /** 1832 * A unique identifier for this task. 1833 */ 1834 public int id; 1835 1836 /** 1837 * The stack that currently contains this task. 1838 * @hide 1839 */ 1840 public int stackId; 1841 1842 /** 1843 * The component launched as the first activity in the task. This can 1844 * be considered the "application" of this task. 1845 */ 1846 public ComponentName baseActivity; 1847 1848 /** 1849 * The activity component at the top of the history stack of the task. 1850 * This is what the user is currently doing. 1851 */ 1852 public ComponentName topActivity; 1853 1854 /** 1855 * Thumbnail representation of the task's current state. Currently 1856 * always null. 1857 */ 1858 public Bitmap thumbnail; 1859 1860 /** 1861 * Description of the task's current state. 1862 */ 1863 public CharSequence description; 1864 1865 /** 1866 * Number of activities in this task. 1867 */ 1868 public int numActivities; 1869 1870 /** 1871 * Number of activities that are currently running (not stopped 1872 * and persisted) in this task. 1873 */ 1874 public int numRunning; 1875 1876 /** 1877 * Last time task was run. For sorting. 1878 * @hide 1879 */ 1880 public long lastActiveTime; 1881 1882 /** 1883 * True if the task can go in the docked stack. 1884 * @hide 1885 */ 1886 public boolean supportsSplitScreenMultiWindow; 1887 1888 /** 1889 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1890 * @hide 1891 */ 1892 public int resizeMode; 1893 1894 public RunningTaskInfo() { 1895 } 1896 1897 public int describeContents() { 1898 return 0; 1899 } 1900 1901 public void writeToParcel(Parcel dest, int flags) { 1902 dest.writeInt(id); 1903 dest.writeInt(stackId); 1904 ComponentName.writeToParcel(baseActivity, dest); 1905 ComponentName.writeToParcel(topActivity, dest); 1906 if (thumbnail != null) { 1907 dest.writeInt(1); 1908 thumbnail.writeToParcel(dest, 0); 1909 } else { 1910 dest.writeInt(0); 1911 } 1912 TextUtils.writeToParcel(description, dest, 1913 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1914 dest.writeInt(numActivities); 1915 dest.writeInt(numRunning); 1916 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1917 dest.writeInt(resizeMode); 1918 } 1919 1920 public void readFromParcel(Parcel source) { 1921 id = source.readInt(); 1922 stackId = source.readInt(); 1923 baseActivity = ComponentName.readFromParcel(source); 1924 topActivity = ComponentName.readFromParcel(source); 1925 if (source.readInt() != 0) { 1926 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1927 } else { 1928 thumbnail = null; 1929 } 1930 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1931 numActivities = source.readInt(); 1932 numRunning = source.readInt(); 1933 supportsSplitScreenMultiWindow = source.readInt() != 0; 1934 resizeMode = source.readInt(); 1935 } 1936 1937 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1938 public RunningTaskInfo createFromParcel(Parcel source) { 1939 return new RunningTaskInfo(source); 1940 } 1941 public RunningTaskInfo[] newArray(int size) { 1942 return new RunningTaskInfo[size]; 1943 } 1944 }; 1945 1946 private RunningTaskInfo(Parcel source) { 1947 readFromParcel(source); 1948 } 1949 } 1950 1951 /** 1952 * Get the list of tasks associated with the calling application. 1953 * 1954 * @return The list of tasks associated with the application making this call. 1955 * @throws SecurityException 1956 */ 1957 public List<ActivityManager.AppTask> getAppTasks() { 1958 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1959 List<IBinder> appTasks; 1960 try { 1961 appTasks = getService().getAppTasks(mContext.getPackageName()); 1962 } catch (RemoteException e) { 1963 throw e.rethrowFromSystemServer(); 1964 } 1965 int numAppTasks = appTasks.size(); 1966 for (int i = 0; i < numAppTasks; i++) { 1967 tasks.add(new AppTask(IAppTask.Stub.asInterface(appTasks.get(i)))); 1968 } 1969 return tasks; 1970 } 1971 1972 /** 1973 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1974 * with {@link #addAppTask}. 1975 */ 1976 public Size getAppTaskThumbnailSize() { 1977 synchronized (this) { 1978 ensureAppTaskThumbnailSizeLocked(); 1979 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1980 } 1981 } 1982 1983 private void ensureAppTaskThumbnailSizeLocked() { 1984 if (mAppTaskThumbnailSize == null) { 1985 try { 1986 mAppTaskThumbnailSize = getService().getAppTaskThumbnailSize(); 1987 } catch (RemoteException e) { 1988 throw e.rethrowFromSystemServer(); 1989 } 1990 } 1991 } 1992 1993 /** 1994 * Add a new {@link AppTask} for the calling application. This will create a new 1995 * recents entry that is added to the <b>end</b> of all existing recents. 1996 * 1997 * @param activity The activity that is adding the entry. This is used to help determine 1998 * the context that the new recents entry will be in. 1999 * @param intent The Intent that describes the recents entry. This is the same Intent that 2000 * you would have used to launch the activity for it. In generally you will want to set 2001 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 2002 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 2003 * entry will exist without an activity, so it doesn't make sense to not retain it when 2004 * its activity disappears. The given Intent here also must have an explicit ComponentName 2005 * set on it. 2006 * @param description Optional additional description information. 2007 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 2008 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 2009 * recreated in your process, probably in a way you don't like, before the recents entry 2010 * is added. 2011 * 2012 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 2013 * most likely cause of failure is that there is no more room for more tasks for your app. 2014 */ 2015 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 2016 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 2017 Point size; 2018 synchronized (this) { 2019 ensureAppTaskThumbnailSizeLocked(); 2020 size = mAppTaskThumbnailSize; 2021 } 2022 final int tw = thumbnail.getWidth(); 2023 final int th = thumbnail.getHeight(); 2024 if (tw != size.x || th != size.y) { 2025 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 2026 2027 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 2028 float scale; 2029 float dx = 0, dy = 0; 2030 if (tw * size.x > size.y * th) { 2031 scale = (float) size.x / (float) th; 2032 dx = (size.y - tw * scale) * 0.5f; 2033 } else { 2034 scale = (float) size.y / (float) tw; 2035 dy = (size.x - th * scale) * 0.5f; 2036 } 2037 Matrix matrix = new Matrix(); 2038 matrix.setScale(scale, scale); 2039 matrix.postTranslate((int) (dx + 0.5f), 0); 2040 2041 Canvas canvas = new Canvas(bm); 2042 canvas.drawBitmap(thumbnail, matrix, null); 2043 canvas.setBitmap(null); 2044 2045 thumbnail = bm; 2046 } 2047 if (description == null) { 2048 description = new TaskDescription(); 2049 } 2050 try { 2051 return getService().addAppTask(activity.getActivityToken(), 2052 intent, description, thumbnail); 2053 } catch (RemoteException e) { 2054 throw e.rethrowFromSystemServer(); 2055 } 2056 } 2057 2058 /** 2059 * Return a list of the tasks that are currently running, with 2060 * the most recent being first and older ones after in order. Note that 2061 * "running" does not mean any of the task's code is currently loaded or 2062 * activity -- the task may have been frozen by the system, so that it 2063 * can be restarted in its previous state when next brought to the 2064 * foreground. 2065 * 2066 * <p><b>Note: this method is only intended for debugging and presenting 2067 * task management user interfaces</b>. This should never be used for 2068 * core logic in an application, such as deciding between different 2069 * behaviors based on the information found here. Such uses are 2070 * <em>not</em> supported, and will likely break in the future. For 2071 * example, if multiple applications can be actively running at the 2072 * same time, assumptions made about the meaning of the data here for 2073 * purposes of control flow will be incorrect.</p> 2074 * 2075 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 2076 * is no longer available to third party 2077 * applications: the introduction of document-centric recents means 2078 * it can leak person information to the caller. For backwards compatibility, 2079 * it will still retu rn a small subset of its data: at least the caller's 2080 * own tasks, and possibly some other tasks 2081 * such as home that are known to not be sensitive. 2082 * 2083 * @param maxNum The maximum number of entries to return in the list. The 2084 * actual number returned may be smaller, depending on how many tasks the 2085 * user has started. 2086 * 2087 * @return Returns a list of RunningTaskInfo records describing each of 2088 * the running tasks. 2089 */ 2090 @Deprecated 2091 public List<RunningTaskInfo> getRunningTasks(int maxNum) 2092 throws SecurityException { 2093 try { 2094 return getService().getTasks(maxNum, 0); 2095 } catch (RemoteException e) { 2096 throw e.rethrowFromSystemServer(); 2097 } 2098 } 2099 2100 /** 2101 * Completely remove the given task. 2102 * 2103 * @param taskId Identifier of the task to be removed. 2104 * @return Returns true if the given task was found and removed. 2105 * 2106 * @hide 2107 */ 2108 public boolean removeTask(int taskId) throws SecurityException { 2109 try { 2110 return getService().removeTask(taskId); 2111 } catch (RemoteException e) { 2112 throw e.rethrowFromSystemServer(); 2113 } 2114 } 2115 2116 /** 2117 * Metadata related to the {@link TaskThumbnail}. 2118 * 2119 * @hide 2120 */ 2121 public static class TaskThumbnailInfo implements Parcelable { 2122 /** @hide */ 2123 public static final String ATTR_TASK_THUMBNAILINFO_PREFIX = "task_thumbnailinfo_"; 2124 private static final String ATTR_TASK_WIDTH = 2125 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_width"; 2126 private static final String ATTR_TASK_HEIGHT = 2127 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_height"; 2128 private static final String ATTR_SCREEN_ORIENTATION = 2129 ATTR_TASK_THUMBNAILINFO_PREFIX + "screen_orientation"; 2130 2131 public int taskWidth; 2132 public int taskHeight; 2133 public int screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2134 2135 public TaskThumbnailInfo() { 2136 // Do nothing 2137 } 2138 2139 private TaskThumbnailInfo(Parcel source) { 2140 readFromParcel(source); 2141 } 2142 2143 /** 2144 * Resets this info state to the initial state. 2145 * @hide 2146 */ 2147 public void reset() { 2148 taskWidth = 0; 2149 taskHeight = 0; 2150 screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2151 } 2152 2153 /** 2154 * Copies from another ThumbnailInfo. 2155 */ 2156 public void copyFrom(TaskThumbnailInfo o) { 2157 taskWidth = o.taskWidth; 2158 taskHeight = o.taskHeight; 2159 screenOrientation = o.screenOrientation; 2160 } 2161 2162 /** @hide */ 2163 public void saveToXml(XmlSerializer out) throws IOException { 2164 out.attribute(null, ATTR_TASK_WIDTH, Integer.toString(taskWidth)); 2165 out.attribute(null, ATTR_TASK_HEIGHT, Integer.toString(taskHeight)); 2166 out.attribute(null, ATTR_SCREEN_ORIENTATION, Integer.toString(screenOrientation)); 2167 } 2168 2169 /** @hide */ 2170 public void restoreFromXml(String attrName, String attrValue) { 2171 if (ATTR_TASK_WIDTH.equals(attrName)) { 2172 taskWidth = Integer.parseInt(attrValue); 2173 } else if (ATTR_TASK_HEIGHT.equals(attrName)) { 2174 taskHeight = Integer.parseInt(attrValue); 2175 } else if (ATTR_SCREEN_ORIENTATION.equals(attrName)) { 2176 screenOrientation = Integer.parseInt(attrValue); 2177 } 2178 } 2179 2180 public int describeContents() { 2181 return 0; 2182 } 2183 2184 public void writeToParcel(Parcel dest, int flags) { 2185 dest.writeInt(taskWidth); 2186 dest.writeInt(taskHeight); 2187 dest.writeInt(screenOrientation); 2188 } 2189 2190 public void readFromParcel(Parcel source) { 2191 taskWidth = source.readInt(); 2192 taskHeight = source.readInt(); 2193 screenOrientation = source.readInt(); 2194 } 2195 2196 public static final Creator<TaskThumbnailInfo> CREATOR = new Creator<TaskThumbnailInfo>() { 2197 public TaskThumbnailInfo createFromParcel(Parcel source) { 2198 return new TaskThumbnailInfo(source); 2199 } 2200 public TaskThumbnailInfo[] newArray(int size) { 2201 return new TaskThumbnailInfo[size]; 2202 } 2203 }; 2204 } 2205 2206 /** @hide */ 2207 public static class TaskThumbnail implements Parcelable { 2208 public Bitmap mainThumbnail; 2209 public ParcelFileDescriptor thumbnailFileDescriptor; 2210 public TaskThumbnailInfo thumbnailInfo; 2211 2212 public TaskThumbnail() { 2213 } 2214 2215 private TaskThumbnail(Parcel source) { 2216 readFromParcel(source); 2217 } 2218 2219 public int describeContents() { 2220 if (thumbnailFileDescriptor != null) { 2221 return thumbnailFileDescriptor.describeContents(); 2222 } 2223 return 0; 2224 } 2225 2226 public void writeToParcel(Parcel dest, int flags) { 2227 if (mainThumbnail != null) { 2228 dest.writeInt(1); 2229 mainThumbnail.writeToParcel(dest, flags); 2230 } else { 2231 dest.writeInt(0); 2232 } 2233 if (thumbnailFileDescriptor != null) { 2234 dest.writeInt(1); 2235 thumbnailFileDescriptor.writeToParcel(dest, flags); 2236 } else { 2237 dest.writeInt(0); 2238 } 2239 if (thumbnailInfo != null) { 2240 dest.writeInt(1); 2241 thumbnailInfo.writeToParcel(dest, flags); 2242 } else { 2243 dest.writeInt(0); 2244 } 2245 } 2246 2247 public void readFromParcel(Parcel source) { 2248 if (source.readInt() != 0) { 2249 mainThumbnail = Bitmap.CREATOR.createFromParcel(source); 2250 } else { 2251 mainThumbnail = null; 2252 } 2253 if (source.readInt() != 0) { 2254 thumbnailFileDescriptor = ParcelFileDescriptor.CREATOR.createFromParcel(source); 2255 } else { 2256 thumbnailFileDescriptor = null; 2257 } 2258 if (source.readInt() != 0) { 2259 thumbnailInfo = TaskThumbnailInfo.CREATOR.createFromParcel(source); 2260 } else { 2261 thumbnailInfo = null; 2262 } 2263 } 2264 2265 public static final Creator<TaskThumbnail> CREATOR = new Creator<TaskThumbnail>() { 2266 public TaskThumbnail createFromParcel(Parcel source) { 2267 return new TaskThumbnail(source); 2268 } 2269 public TaskThumbnail[] newArray(int size) { 2270 return new TaskThumbnail[size]; 2271 } 2272 }; 2273 } 2274 2275 /** 2276 * Represents a task snapshot. 2277 * @hide 2278 */ 2279 public static class TaskSnapshot implements Parcelable { 2280 2281 private final GraphicBuffer mSnapshot; 2282 private final int mOrientation; 2283 private final Rect mContentInsets; 2284 private final boolean mReducedResolution; 2285 private final float mScale; 2286 2287 public TaskSnapshot(GraphicBuffer snapshot, int orientation, Rect contentInsets, 2288 boolean reducedResolution, float scale) { 2289 mSnapshot = snapshot; 2290 mOrientation = orientation; 2291 mContentInsets = new Rect(contentInsets); 2292 mReducedResolution = reducedResolution; 2293 mScale = scale; 2294 } 2295 2296 private TaskSnapshot(Parcel source) { 2297 mSnapshot = source.readParcelable(null /* classLoader */); 2298 mOrientation = source.readInt(); 2299 mContentInsets = source.readParcelable(null /* classLoader */); 2300 mReducedResolution = source.readBoolean(); 2301 mScale = source.readFloat(); 2302 } 2303 2304 /** 2305 * @return The graphic buffer representing the screenshot. 2306 */ 2307 public GraphicBuffer getSnapshot() { 2308 return mSnapshot; 2309 } 2310 2311 /** 2312 * @return The screen orientation the screenshot was taken in. 2313 */ 2314 public int getOrientation() { 2315 return mOrientation; 2316 } 2317 2318 /** 2319 * @return The system/content insets on the snapshot. These can be clipped off in order to 2320 * remove any areas behind system bars in the snapshot. 2321 */ 2322 public Rect getContentInsets() { 2323 return mContentInsets; 2324 } 2325 2326 /** 2327 * @return Whether this snapshot is a down-sampled version of the full resolution. 2328 */ 2329 public boolean isReducedResolution() { 2330 return mReducedResolution; 2331 } 2332 2333 /** 2334 * @return The scale this snapshot was taken in. 2335 */ 2336 public float getScale() { 2337 return mScale; 2338 } 2339 2340 @Override 2341 public int describeContents() { 2342 return 0; 2343 } 2344 2345 @Override 2346 public void writeToParcel(Parcel dest, int flags) { 2347 dest.writeParcelable(mSnapshot, 0); 2348 dest.writeInt(mOrientation); 2349 dest.writeParcelable(mContentInsets, 0); 2350 dest.writeBoolean(mReducedResolution); 2351 dest.writeFloat(mScale); 2352 } 2353 2354 @Override 2355 public String toString() { 2356 return "TaskSnapshot{mSnapshot=" + mSnapshot + " mOrientation=" + mOrientation 2357 + " mContentInsets=" + mContentInsets.toShortString() 2358 + " mReducedResolution=" + mReducedResolution + " mScale=" + mScale; 2359 } 2360 2361 public static final Creator<TaskSnapshot> CREATOR = new Creator<TaskSnapshot>() { 2362 public TaskSnapshot createFromParcel(Parcel source) { 2363 return new TaskSnapshot(source); 2364 } 2365 public TaskSnapshot[] newArray(int size) { 2366 return new TaskSnapshot[size]; 2367 } 2368 }; 2369 } 2370 2371 /** @hide */ 2372 public TaskThumbnail getTaskThumbnail(int id) throws SecurityException { 2373 try { 2374 return getService().getTaskThumbnail(id); 2375 } catch (RemoteException e) { 2376 throw e.rethrowFromSystemServer(); 2377 } 2378 } 2379 2380 /** @hide */ 2381 @IntDef(flag = true, prefix = { "MOVE_TASK_" }, value = { 2382 MOVE_TASK_WITH_HOME, 2383 MOVE_TASK_NO_USER_ACTION, 2384 }) 2385 @Retention(RetentionPolicy.SOURCE) 2386 public @interface MoveTaskFlags {} 2387 2388 /** 2389 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2390 * activity along with the task, so it is positioned immediately behind 2391 * the task. 2392 */ 2393 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2394 2395 /** 2396 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2397 * user-instigated action, so the current activity will not receive a 2398 * hint that the user is leaving. 2399 */ 2400 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2401 2402 /** 2403 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2404 * with a null options argument. 2405 * 2406 * @param taskId The identifier of the task to be moved, as found in 2407 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2408 * @param flags Additional operational flags. 2409 */ 2410 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2411 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags) { 2412 moveTaskToFront(taskId, flags, null); 2413 } 2414 2415 /** 2416 * Ask that the task associated with a given task ID be moved to the 2417 * front of the stack, so it is now visible to the user. 2418 * 2419 * @param taskId The identifier of the task to be moved, as found in 2420 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2421 * @param flags Additional operational flags. 2422 * @param options Additional options for the operation, either null or 2423 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2424 * Context.startActivity(Intent, Bundle)}. 2425 */ 2426 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2427 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags, Bundle options) { 2428 try { 2429 getService().moveTaskToFront(taskId, flags, options); 2430 } catch (RemoteException e) { 2431 throw e.rethrowFromSystemServer(); 2432 } 2433 } 2434 2435 /** 2436 * Information you can retrieve about a particular Service that is 2437 * currently running in the system. 2438 */ 2439 public static class RunningServiceInfo implements Parcelable { 2440 /** 2441 * The service component. 2442 */ 2443 public ComponentName service; 2444 2445 /** 2446 * If non-zero, this is the process the service is running in. 2447 */ 2448 public int pid; 2449 2450 /** 2451 * The UID that owns this service. 2452 */ 2453 public int uid; 2454 2455 /** 2456 * The name of the process this service runs in. 2457 */ 2458 public String process; 2459 2460 /** 2461 * Set to true if the service has asked to run as a foreground process. 2462 */ 2463 public boolean foreground; 2464 2465 /** 2466 * The time when the service was first made active, either by someone 2467 * starting or binding to it. This 2468 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2469 */ 2470 public long activeSince; 2471 2472 /** 2473 * Set to true if this service has been explicitly started. 2474 */ 2475 public boolean started; 2476 2477 /** 2478 * Number of clients connected to the service. 2479 */ 2480 public int clientCount; 2481 2482 /** 2483 * Number of times the service's process has crashed while the service 2484 * is running. 2485 */ 2486 public int crashCount; 2487 2488 /** 2489 * The time when there was last activity in the service (either 2490 * explicit requests to start it or clients binding to it). This 2491 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2492 */ 2493 public long lastActivityTime; 2494 2495 /** 2496 * If non-zero, this service is not currently running, but scheduled to 2497 * restart at the given time. 2498 */ 2499 public long restarting; 2500 2501 /** 2502 * Bit for {@link #flags}: set if this service has been 2503 * explicitly started. 2504 */ 2505 public static final int FLAG_STARTED = 1<<0; 2506 2507 /** 2508 * Bit for {@link #flags}: set if the service has asked to 2509 * run as a foreground process. 2510 */ 2511 public static final int FLAG_FOREGROUND = 1<<1; 2512 2513 /** 2514 * Bit for {@link #flags}: set if the service is running in a 2515 * core system process. 2516 */ 2517 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2518 2519 /** 2520 * Bit for {@link #flags}: set if the service is running in a 2521 * persistent process. 2522 */ 2523 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2524 2525 /** 2526 * Running flags. 2527 */ 2528 public int flags; 2529 2530 /** 2531 * For special services that are bound to by system code, this is 2532 * the package that holds the binding. 2533 */ 2534 public String clientPackage; 2535 2536 /** 2537 * For special services that are bound to by system code, this is 2538 * a string resource providing a user-visible label for who the 2539 * client is. 2540 */ 2541 public int clientLabel; 2542 2543 public RunningServiceInfo() { 2544 } 2545 2546 public int describeContents() { 2547 return 0; 2548 } 2549 2550 public void writeToParcel(Parcel dest, int flags) { 2551 ComponentName.writeToParcel(service, dest); 2552 dest.writeInt(pid); 2553 dest.writeInt(uid); 2554 dest.writeString(process); 2555 dest.writeInt(foreground ? 1 : 0); 2556 dest.writeLong(activeSince); 2557 dest.writeInt(started ? 1 : 0); 2558 dest.writeInt(clientCount); 2559 dest.writeInt(crashCount); 2560 dest.writeLong(lastActivityTime); 2561 dest.writeLong(restarting); 2562 dest.writeInt(this.flags); 2563 dest.writeString(clientPackage); 2564 dest.writeInt(clientLabel); 2565 } 2566 2567 public void readFromParcel(Parcel source) { 2568 service = ComponentName.readFromParcel(source); 2569 pid = source.readInt(); 2570 uid = source.readInt(); 2571 process = source.readString(); 2572 foreground = source.readInt() != 0; 2573 activeSince = source.readLong(); 2574 started = source.readInt() != 0; 2575 clientCount = source.readInt(); 2576 crashCount = source.readInt(); 2577 lastActivityTime = source.readLong(); 2578 restarting = source.readLong(); 2579 flags = source.readInt(); 2580 clientPackage = source.readString(); 2581 clientLabel = source.readInt(); 2582 } 2583 2584 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2585 public RunningServiceInfo createFromParcel(Parcel source) { 2586 return new RunningServiceInfo(source); 2587 } 2588 public RunningServiceInfo[] newArray(int size) { 2589 return new RunningServiceInfo[size]; 2590 } 2591 }; 2592 2593 private RunningServiceInfo(Parcel source) { 2594 readFromParcel(source); 2595 } 2596 } 2597 2598 /** 2599 * Return a list of the services that are currently running. 2600 * 2601 * <p><b>Note: this method is only intended for debugging or implementing 2602 * service management type user interfaces.</b></p> 2603 * 2604 * @deprecated As of {@link android.os.Build.VERSION_CODES#O}, this method 2605 * is no longer available to third party applications. For backwards compatibility, 2606 * it will still return the caller's own services. 2607 * 2608 * @param maxNum The maximum number of entries to return in the list. The 2609 * actual number returned may be smaller, depending on how many services 2610 * are running. 2611 * 2612 * @return Returns a list of RunningServiceInfo records describing each of 2613 * the running tasks. 2614 */ 2615 @Deprecated 2616 public List<RunningServiceInfo> getRunningServices(int maxNum) 2617 throws SecurityException { 2618 try { 2619 return getService() 2620 .getServices(maxNum, 0); 2621 } catch (RemoteException e) { 2622 throw e.rethrowFromSystemServer(); 2623 } 2624 } 2625 2626 /** 2627 * Returns a PendingIntent you can start to show a control panel for the 2628 * given running service. If the service does not have a control panel, 2629 * null is returned. 2630 */ 2631 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2632 throws SecurityException { 2633 try { 2634 return getService() 2635 .getRunningServiceControlPanel(service); 2636 } catch (RemoteException e) { 2637 throw e.rethrowFromSystemServer(); 2638 } 2639 } 2640 2641 /** 2642 * Information you can retrieve about the available memory through 2643 * {@link ActivityManager#getMemoryInfo}. 2644 */ 2645 public static class MemoryInfo implements Parcelable { 2646 /** 2647 * The available memory on the system. This number should not 2648 * be considered absolute: due to the nature of the kernel, a significant 2649 * portion of this memory is actually in use and needed for the overall 2650 * system to run well. 2651 */ 2652 public long availMem; 2653 2654 /** 2655 * The total memory accessible by the kernel. This is basically the 2656 * RAM size of the device, not including below-kernel fixed allocations 2657 * like DMA buffers, RAM for the baseband CPU, etc. 2658 */ 2659 public long totalMem; 2660 2661 /** 2662 * The threshold of {@link #availMem} at which we consider memory to be 2663 * low and start killing background services and other non-extraneous 2664 * processes. 2665 */ 2666 public long threshold; 2667 2668 /** 2669 * Set to true if the system considers itself to currently be in a low 2670 * memory situation. 2671 */ 2672 public boolean lowMemory; 2673 2674 /** @hide */ 2675 public long hiddenAppThreshold; 2676 /** @hide */ 2677 public long secondaryServerThreshold; 2678 /** @hide */ 2679 public long visibleAppThreshold; 2680 /** @hide */ 2681 public long foregroundAppThreshold; 2682 2683 public MemoryInfo() { 2684 } 2685 2686 public int describeContents() { 2687 return 0; 2688 } 2689 2690 public void writeToParcel(Parcel dest, int flags) { 2691 dest.writeLong(availMem); 2692 dest.writeLong(totalMem); 2693 dest.writeLong(threshold); 2694 dest.writeInt(lowMemory ? 1 : 0); 2695 dest.writeLong(hiddenAppThreshold); 2696 dest.writeLong(secondaryServerThreshold); 2697 dest.writeLong(visibleAppThreshold); 2698 dest.writeLong(foregroundAppThreshold); 2699 } 2700 2701 public void readFromParcel(Parcel source) { 2702 availMem = source.readLong(); 2703 totalMem = source.readLong(); 2704 threshold = source.readLong(); 2705 lowMemory = source.readInt() != 0; 2706 hiddenAppThreshold = source.readLong(); 2707 secondaryServerThreshold = source.readLong(); 2708 visibleAppThreshold = source.readLong(); 2709 foregroundAppThreshold = source.readLong(); 2710 } 2711 2712 public static final Creator<MemoryInfo> CREATOR 2713 = new Creator<MemoryInfo>() { 2714 public MemoryInfo createFromParcel(Parcel source) { 2715 return new MemoryInfo(source); 2716 } 2717 public MemoryInfo[] newArray(int size) { 2718 return new MemoryInfo[size]; 2719 } 2720 }; 2721 2722 private MemoryInfo(Parcel source) { 2723 readFromParcel(source); 2724 } 2725 } 2726 2727 /** 2728 * Return general information about the memory state of the system. This 2729 * can be used to help decide how to manage your own memory, though note 2730 * that polling is not recommended and 2731 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2732 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2733 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2734 * level of your process as needed, which gives a better hint for how to 2735 * manage its memory. 2736 */ 2737 public void getMemoryInfo(MemoryInfo outInfo) { 2738 try { 2739 getService().getMemoryInfo(outInfo); 2740 } catch (RemoteException e) { 2741 throw e.rethrowFromSystemServer(); 2742 } 2743 } 2744 2745 /** 2746 * Information you can retrieve about an ActivityStack in the system. 2747 * @hide 2748 */ 2749 public static class StackInfo implements Parcelable { 2750 public int stackId; 2751 public Rect bounds = new Rect(); 2752 public int[] taskIds; 2753 public String[] taskNames; 2754 public Rect[] taskBounds; 2755 public int[] taskUserIds; 2756 public ComponentName topActivity; 2757 public int displayId; 2758 public int userId; 2759 public boolean visible; 2760 // Index of the stack in the display's stack list, can be used for comparison of stack order 2761 public int position; 2762 2763 @Override 2764 public int describeContents() { 2765 return 0; 2766 } 2767 2768 @Override 2769 public void writeToParcel(Parcel dest, int flags) { 2770 dest.writeInt(stackId); 2771 dest.writeInt(bounds.left); 2772 dest.writeInt(bounds.top); 2773 dest.writeInt(bounds.right); 2774 dest.writeInt(bounds.bottom); 2775 dest.writeIntArray(taskIds); 2776 dest.writeStringArray(taskNames); 2777 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2778 dest.writeInt(boundsCount); 2779 for (int i = 0; i < boundsCount; i++) { 2780 dest.writeInt(taskBounds[i].left); 2781 dest.writeInt(taskBounds[i].top); 2782 dest.writeInt(taskBounds[i].right); 2783 dest.writeInt(taskBounds[i].bottom); 2784 } 2785 dest.writeIntArray(taskUserIds); 2786 dest.writeInt(displayId); 2787 dest.writeInt(userId); 2788 dest.writeInt(visible ? 1 : 0); 2789 dest.writeInt(position); 2790 if (topActivity != null) { 2791 dest.writeInt(1); 2792 topActivity.writeToParcel(dest, 0); 2793 } else { 2794 dest.writeInt(0); 2795 } 2796 } 2797 2798 public void readFromParcel(Parcel source) { 2799 stackId = source.readInt(); 2800 bounds = new Rect( 2801 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2802 taskIds = source.createIntArray(); 2803 taskNames = source.createStringArray(); 2804 final int boundsCount = source.readInt(); 2805 if (boundsCount > 0) { 2806 taskBounds = new Rect[boundsCount]; 2807 for (int i = 0; i < boundsCount; i++) { 2808 taskBounds[i] = new Rect(); 2809 taskBounds[i].set( 2810 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2811 } 2812 } else { 2813 taskBounds = null; 2814 } 2815 taskUserIds = source.createIntArray(); 2816 displayId = source.readInt(); 2817 userId = source.readInt(); 2818 visible = source.readInt() > 0; 2819 position = source.readInt(); 2820 if (source.readInt() > 0) { 2821 topActivity = ComponentName.readFromParcel(source); 2822 } 2823 } 2824 2825 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2826 @Override 2827 public StackInfo createFromParcel(Parcel source) { 2828 return new StackInfo(source); 2829 } 2830 @Override 2831 public StackInfo[] newArray(int size) { 2832 return new StackInfo[size]; 2833 } 2834 }; 2835 2836 public StackInfo() { 2837 } 2838 2839 private StackInfo(Parcel source) { 2840 readFromParcel(source); 2841 } 2842 2843 public String toString(String prefix) { 2844 StringBuilder sb = new StringBuilder(256); 2845 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2846 sb.append(" bounds="); sb.append(bounds.toShortString()); 2847 sb.append(" displayId="); sb.append(displayId); 2848 sb.append(" userId="); sb.append(userId); 2849 sb.append("\n"); 2850 prefix = prefix + " "; 2851 for (int i = 0; i < taskIds.length; ++i) { 2852 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2853 sb.append(": "); sb.append(taskNames[i]); 2854 if (taskBounds != null) { 2855 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2856 } 2857 sb.append(" userId=").append(taskUserIds[i]); 2858 sb.append(" visible=").append(visible); 2859 if (topActivity != null) { 2860 sb.append(" topActivity=").append(topActivity); 2861 } 2862 sb.append("\n"); 2863 } 2864 return sb.toString(); 2865 } 2866 2867 @Override 2868 public String toString() { 2869 return toString(""); 2870 } 2871 } 2872 2873 /** 2874 * @hide 2875 */ 2876 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2877 try { 2878 return getService().clearApplicationUserData(packageName, 2879 observer, UserHandle.myUserId()); 2880 } catch (RemoteException e) { 2881 throw e.rethrowFromSystemServer(); 2882 } 2883 } 2884 2885 /** 2886 * Permits an application to erase its own data from disk. This is equivalent to 2887 * the user choosing to clear the app's data from within the device settings UI. It 2888 * erases all dynamic data associated with the app -- its private data and data in its 2889 * private area on external storage -- but does not remove the installed application 2890 * itself, nor any OBB files. 2891 * 2892 * @return {@code true} if the application successfully requested that the application's 2893 * data be erased; {@code false} otherwise. 2894 */ 2895 public boolean clearApplicationUserData() { 2896 return clearApplicationUserData(mContext.getPackageName(), null); 2897 } 2898 2899 2900 /** 2901 * Permits an application to get the persistent URI permissions granted to another. 2902 * 2903 * <p>Typically called by Settings. 2904 * 2905 * @param packageName application to look for the granted permissions 2906 * @return list of granted URI permissions 2907 * 2908 * @hide 2909 */ 2910 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2911 try { 2912 return getService().getGrantedUriPermissions(packageName, 2913 UserHandle.myUserId()); 2914 } catch (RemoteException e) { 2915 throw e.rethrowFromSystemServer(); 2916 } 2917 } 2918 2919 /** 2920 * Permits an application to clear the persistent URI permissions granted to another. 2921 * 2922 * <p>Typically called by Settings. 2923 * 2924 * @param packageName application to clear its granted permissions 2925 * 2926 * @hide 2927 */ 2928 public void clearGrantedUriPermissions(String packageName) { 2929 try { 2930 getService().clearGrantedUriPermissions(packageName, 2931 UserHandle.myUserId()); 2932 } catch (RemoteException e) { 2933 throw e.rethrowFromSystemServer(); 2934 } 2935 } 2936 2937 /** 2938 * Information you can retrieve about any processes that are in an error condition. 2939 */ 2940 public static class ProcessErrorStateInfo implements Parcelable { 2941 /** 2942 * Condition codes 2943 */ 2944 public static final int NO_ERROR = 0; 2945 public static final int CRASHED = 1; 2946 public static final int NOT_RESPONDING = 2; 2947 2948 /** 2949 * The condition that the process is in. 2950 */ 2951 public int condition; 2952 2953 /** 2954 * The process name in which the crash or error occurred. 2955 */ 2956 public String processName; 2957 2958 /** 2959 * The pid of this process; 0 if none 2960 */ 2961 public int pid; 2962 2963 /** 2964 * The kernel user-ID that has been assigned to this process; 2965 * currently this is not a unique ID (multiple applications can have 2966 * the same uid). 2967 */ 2968 public int uid; 2969 2970 /** 2971 * The activity name associated with the error, if known. May be null. 2972 */ 2973 public String tag; 2974 2975 /** 2976 * A short message describing the error condition. 2977 */ 2978 public String shortMsg; 2979 2980 /** 2981 * A long message describing the error condition. 2982 */ 2983 public String longMsg; 2984 2985 /** 2986 * The stack trace where the error originated. May be null. 2987 */ 2988 public String stackTrace; 2989 2990 /** 2991 * to be deprecated: This value will always be null. 2992 */ 2993 public byte[] crashData = null; 2994 2995 public ProcessErrorStateInfo() { 2996 } 2997 2998 @Override 2999 public int describeContents() { 3000 return 0; 3001 } 3002 3003 @Override 3004 public void writeToParcel(Parcel dest, int flags) { 3005 dest.writeInt(condition); 3006 dest.writeString(processName); 3007 dest.writeInt(pid); 3008 dest.writeInt(uid); 3009 dest.writeString(tag); 3010 dest.writeString(shortMsg); 3011 dest.writeString(longMsg); 3012 dest.writeString(stackTrace); 3013 } 3014 3015 public void readFromParcel(Parcel source) { 3016 condition = source.readInt(); 3017 processName = source.readString(); 3018 pid = source.readInt(); 3019 uid = source.readInt(); 3020 tag = source.readString(); 3021 shortMsg = source.readString(); 3022 longMsg = source.readString(); 3023 stackTrace = source.readString(); 3024 } 3025 3026 public static final Creator<ProcessErrorStateInfo> CREATOR = 3027 new Creator<ProcessErrorStateInfo>() { 3028 public ProcessErrorStateInfo createFromParcel(Parcel source) { 3029 return new ProcessErrorStateInfo(source); 3030 } 3031 public ProcessErrorStateInfo[] newArray(int size) { 3032 return new ProcessErrorStateInfo[size]; 3033 } 3034 }; 3035 3036 private ProcessErrorStateInfo(Parcel source) { 3037 readFromParcel(source); 3038 } 3039 } 3040 3041 /** 3042 * Returns a list of any processes that are currently in an error condition. The result 3043 * will be null if all processes are running properly at this time. 3044 * 3045 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 3046 * current error conditions (it will not return an empty list). This list ordering is not 3047 * specified. 3048 */ 3049 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 3050 try { 3051 return getService().getProcessesInErrorState(); 3052 } catch (RemoteException e) { 3053 throw e.rethrowFromSystemServer(); 3054 } 3055 } 3056 3057 /** 3058 * Information you can retrieve about a running process. 3059 */ 3060 public static class RunningAppProcessInfo implements Parcelable { 3061 /** 3062 * The name of the process that this object is associated with 3063 */ 3064 public String processName; 3065 3066 /** 3067 * The pid of this process; 0 if none 3068 */ 3069 public int pid; 3070 3071 /** 3072 * The user id of this process. 3073 */ 3074 public int uid; 3075 3076 /** 3077 * All packages that have been loaded into the process. 3078 */ 3079 public String pkgList[]; 3080 3081 /** 3082 * Constant for {@link #flags}: this is an app that is unable to 3083 * correctly save its state when going to the background, 3084 * so it can not be killed while in the background. 3085 * @hide 3086 */ 3087 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 3088 3089 /** 3090 * Constant for {@link #flags}: this process is associated with a 3091 * persistent system app. 3092 * @hide 3093 */ 3094 public static final int FLAG_PERSISTENT = 1<<1; 3095 3096 /** 3097 * Constant for {@link #flags}: this process is associated with a 3098 * persistent system app. 3099 * @hide 3100 */ 3101 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 3102 3103 /** 3104 * Flags of information. May be any of 3105 * {@link #FLAG_CANT_SAVE_STATE}. 3106 * @hide 3107 */ 3108 public int flags; 3109 3110 /** 3111 * Last memory trim level reported to the process: corresponds to 3112 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 3113 * ComponentCallbacks2.onTrimMemory(int)}. 3114 */ 3115 public int lastTrimLevel; 3116 3117 /** @hide */ 3118 @IntDef(prefix = { "IMPORTANCE_" }, value = { 3119 IMPORTANCE_FOREGROUND, 3120 IMPORTANCE_FOREGROUND_SERVICE, 3121 IMPORTANCE_TOP_SLEEPING, 3122 IMPORTANCE_VISIBLE, 3123 IMPORTANCE_PERCEPTIBLE, 3124 IMPORTANCE_CANT_SAVE_STATE, 3125 IMPORTANCE_SERVICE, 3126 IMPORTANCE_CACHED, 3127 IMPORTANCE_GONE, 3128 }) 3129 @Retention(RetentionPolicy.SOURCE) 3130 public @interface Importance {} 3131 3132 /** 3133 * Constant for {@link #importance}: This process is running the 3134 * foreground UI; that is, it is the thing currently at the top of the screen 3135 * that the user is interacting with. 3136 */ 3137 public static final int IMPORTANCE_FOREGROUND = 100; 3138 3139 /** 3140 * Constant for {@link #importance}: This process is running a foreground 3141 * service, for example to perform music playback even while the user is 3142 * not immediately in the app. This generally indicates that the process 3143 * is doing something the user actively cares about. 3144 */ 3145 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 3146 3147 /** 3148 * Constant for {@link #importance}: This process is running the foreground 3149 * UI, but the device is asleep so it is not visible to the user. This means 3150 * the user is not really aware of the process, because they can not see or 3151 * interact with it, but it is quite important because it what they expect to 3152 * return to once unlocking the device. 3153 */ 3154 public static final int IMPORTANCE_TOP_SLEEPING = 150; 3155 3156 /** 3157 * Constant for {@link #importance}: This process is running something 3158 * that is actively visible to the user, though not in the immediate 3159 * foreground. This may be running a window that is behind the current 3160 * foreground (so paused and with its state saved, not interacting with 3161 * the user, but visible to them to some degree); it may also be running 3162 * other services under the system's control that it inconsiders important. 3163 */ 3164 public static final int IMPORTANCE_VISIBLE = 200; 3165 3166 /** 3167 * Constant for {@link #importance}: {@link #IMPORTANCE_PERCEPTIBLE} had this wrong value 3168 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3169 * the value of {@link #IMPORTANCE_PERCEPTIBLE} has been fixed. 3170 * 3171 * <p>The system will return this value instead of {@link #IMPORTANCE_PERCEPTIBLE} 3172 * on Android versions below {@link Build.VERSION_CODES#O}. 3173 * 3174 * <p>On Android version {@link Build.VERSION_CODES#O} and later, this value will still be 3175 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 3176 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 3177 * the correct value {@link #IMPORTANCE_PERCEPTIBLE} will be returned. 3178 */ 3179 public static final int IMPORTANCE_PERCEPTIBLE_PRE_26 = 130; 3180 3181 /** 3182 * Constant for {@link #importance}: This process is not something the user 3183 * is directly aware of, but is otherwise perceptible to them to some degree. 3184 */ 3185 public static final int IMPORTANCE_PERCEPTIBLE = 230; 3186 3187 /** 3188 * Constant for {@link #importance}: {@link #IMPORTANCE_CANT_SAVE_STATE} had 3189 * this wrong value 3190 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3191 * the value of {@link #IMPORTANCE_CANT_SAVE_STATE} has been fixed. 3192 * 3193 * <p>The system will return this value instead of {@link #IMPORTANCE_CANT_SAVE_STATE} 3194 * on Android versions below {@link Build.VERSION_CODES#O}. 3195 * 3196 * <p>On Android version {@link Build.VERSION_CODES#O} after, this value will still be 3197 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 3198 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 3199 * the correct value {@link #IMPORTANCE_CANT_SAVE_STATE} will be returned. 3200 * 3201 * @hide 3202 */ 3203 public static final int IMPORTANCE_CANT_SAVE_STATE_PRE_26 = 170; 3204 3205 /** 3206 * Constant for {@link #importance}: This process is running an 3207 * application that can not save its state, and thus can't be killed 3208 * while in the background. 3209 * @hide 3210 */ 3211 public static final int IMPORTANCE_CANT_SAVE_STATE= 270; 3212 3213 /** 3214 * Constant for {@link #importance}: This process is contains services 3215 * that should remain running. These are background services apps have 3216 * started, not something the user is aware of, so they may be killed by 3217 * the system relatively freely (though it is generally desired that they 3218 * stay running as long as they want to). 3219 */ 3220 public static final int IMPORTANCE_SERVICE = 300; 3221 3222 /** 3223 * Constant for {@link #importance}: This process process contains 3224 * cached code that is expendable, not actively running any app components 3225 * we care about. 3226 */ 3227 public static final int IMPORTANCE_CACHED = 400; 3228 3229 /** 3230 * @deprecated Renamed to {@link #IMPORTANCE_CACHED}. 3231 */ 3232 public static final int IMPORTANCE_BACKGROUND = IMPORTANCE_CACHED; 3233 3234 /** 3235 * Constant for {@link #importance}: This process is empty of any 3236 * actively running code. 3237 * @deprecated This value is no longer reported, use {@link #IMPORTANCE_CACHED} instead. 3238 */ 3239 @Deprecated 3240 public static final int IMPORTANCE_EMPTY = 500; 3241 3242 /** 3243 * Constant for {@link #importance}: This process does not exist. 3244 */ 3245 public static final int IMPORTANCE_GONE = 1000; 3246 3247 /** 3248 * Convert a proc state to the correspondent IMPORTANCE_* constant. If the return value 3249 * will be passed to a client, use {@link #procStateToImportanceForClient}. 3250 * @hide 3251 */ 3252 public static @Importance int procStateToImportance(int procState) { 3253 if (procState == PROCESS_STATE_NONEXISTENT) { 3254 return IMPORTANCE_GONE; 3255 } else if (procState >= PROCESS_STATE_HOME) { 3256 return IMPORTANCE_CACHED; 3257 } else if (procState >= PROCESS_STATE_SERVICE) { 3258 return IMPORTANCE_SERVICE; 3259 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 3260 return IMPORTANCE_CANT_SAVE_STATE; 3261 } else if (procState >= PROCESS_STATE_TRANSIENT_BACKGROUND) { 3262 return IMPORTANCE_PERCEPTIBLE; 3263 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 3264 return IMPORTANCE_VISIBLE; 3265 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 3266 return IMPORTANCE_TOP_SLEEPING; 3267 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 3268 return IMPORTANCE_FOREGROUND_SERVICE; 3269 } else { 3270 return IMPORTANCE_FOREGROUND; 3271 } 3272 } 3273 3274 /** 3275 * Convert a proc state to the correspondent IMPORTANCE_* constant for a client represented 3276 * by a given {@link Context}, with converting {@link #IMPORTANCE_PERCEPTIBLE} 3277 * and {@link #IMPORTANCE_CANT_SAVE_STATE} to the corresponding "wrong" value if the 3278 * client's target SDK < {@link VERSION_CODES#O}. 3279 * @hide 3280 */ 3281 public static @Importance int procStateToImportanceForClient(int procState, 3282 Context clientContext) { 3283 return procStateToImportanceForTargetSdk(procState, 3284 clientContext.getApplicationInfo().targetSdkVersion); 3285 } 3286 3287 /** 3288 * See {@link #procStateToImportanceForClient}. 3289 * @hide 3290 */ 3291 public static @Importance int procStateToImportanceForTargetSdk(int procState, 3292 int targetSdkVersion) { 3293 final int importance = procStateToImportance(procState); 3294 3295 // For pre O apps, convert to the old, wrong values. 3296 if (targetSdkVersion < VERSION_CODES.O) { 3297 switch (importance) { 3298 case IMPORTANCE_PERCEPTIBLE: 3299 return IMPORTANCE_PERCEPTIBLE_PRE_26; 3300 case IMPORTANCE_CANT_SAVE_STATE: 3301 return IMPORTANCE_CANT_SAVE_STATE_PRE_26; 3302 } 3303 } 3304 return importance; 3305 } 3306 3307 /** @hide */ 3308 public static int importanceToProcState(@Importance int importance) { 3309 if (importance == IMPORTANCE_GONE) { 3310 return PROCESS_STATE_NONEXISTENT; 3311 } else if (importance >= IMPORTANCE_CACHED) { 3312 return PROCESS_STATE_HOME; 3313 } else if (importance >= IMPORTANCE_SERVICE) { 3314 return PROCESS_STATE_SERVICE; 3315 } else if (importance > IMPORTANCE_CANT_SAVE_STATE) { 3316 return PROCESS_STATE_HEAVY_WEIGHT; 3317 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 3318 return PROCESS_STATE_TRANSIENT_BACKGROUND; 3319 } else if (importance >= IMPORTANCE_VISIBLE) { 3320 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3321 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 3322 return PROCESS_STATE_TOP_SLEEPING; 3323 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 3324 return PROCESS_STATE_FOREGROUND_SERVICE; 3325 } else { 3326 return PROCESS_STATE_BOUND_FOREGROUND_SERVICE; 3327 } 3328 } 3329 3330 /** 3331 * The relative importance level that the system places on this process. 3332 * These constants are numbered so that "more important" values are 3333 * always smaller than "less important" values. 3334 */ 3335 public @Importance int importance; 3336 3337 /** 3338 * An additional ordering within a particular {@link #importance} 3339 * category, providing finer-grained information about the relative 3340 * utility of processes within a category. This number means nothing 3341 * except that a smaller values are more recently used (and thus 3342 * more important). Currently an LRU value is only maintained for 3343 * the {@link #IMPORTANCE_CACHED} category, though others may 3344 * be maintained in the future. 3345 */ 3346 public int lru; 3347 3348 /** 3349 * Constant for {@link #importanceReasonCode}: nothing special has 3350 * been specified for the reason for this level. 3351 */ 3352 public static final int REASON_UNKNOWN = 0; 3353 3354 /** 3355 * Constant for {@link #importanceReasonCode}: one of the application's 3356 * content providers is being used by another process. The pid of 3357 * the client process is in {@link #importanceReasonPid} and the 3358 * target provider in this process is in 3359 * {@link #importanceReasonComponent}. 3360 */ 3361 public static final int REASON_PROVIDER_IN_USE = 1; 3362 3363 /** 3364 * Constant for {@link #importanceReasonCode}: one of the application's 3365 * content providers is being used by another process. The pid of 3366 * the client process is in {@link #importanceReasonPid} and the 3367 * target provider in this process is in 3368 * {@link #importanceReasonComponent}. 3369 */ 3370 public static final int REASON_SERVICE_IN_USE = 2; 3371 3372 /** 3373 * The reason for {@link #importance}, if any. 3374 */ 3375 public int importanceReasonCode; 3376 3377 /** 3378 * For the specified values of {@link #importanceReasonCode}, this 3379 * is the process ID of the other process that is a client of this 3380 * process. This will be 0 if no other process is using this one. 3381 */ 3382 public int importanceReasonPid; 3383 3384 /** 3385 * For the specified values of {@link #importanceReasonCode}, this 3386 * is the name of the component that is being used in this process. 3387 */ 3388 public ComponentName importanceReasonComponent; 3389 3390 /** 3391 * When {@link #importanceReasonPid} is non-0, this is the importance 3392 * of the other pid. @hide 3393 */ 3394 public int importanceReasonImportance; 3395 3396 /** 3397 * Current process state, as per PROCESS_STATE_* constants. 3398 * @hide 3399 */ 3400 public int processState; 3401 3402 public RunningAppProcessInfo() { 3403 importance = IMPORTANCE_FOREGROUND; 3404 importanceReasonCode = REASON_UNKNOWN; 3405 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 3406 } 3407 3408 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 3409 processName = pProcessName; 3410 pid = pPid; 3411 pkgList = pArr; 3412 } 3413 3414 public int describeContents() { 3415 return 0; 3416 } 3417 3418 public void writeToParcel(Parcel dest, int flags) { 3419 dest.writeString(processName); 3420 dest.writeInt(pid); 3421 dest.writeInt(uid); 3422 dest.writeStringArray(pkgList); 3423 dest.writeInt(this.flags); 3424 dest.writeInt(lastTrimLevel); 3425 dest.writeInt(importance); 3426 dest.writeInt(lru); 3427 dest.writeInt(importanceReasonCode); 3428 dest.writeInt(importanceReasonPid); 3429 ComponentName.writeToParcel(importanceReasonComponent, dest); 3430 dest.writeInt(importanceReasonImportance); 3431 dest.writeInt(processState); 3432 } 3433 3434 public void readFromParcel(Parcel source) { 3435 processName = source.readString(); 3436 pid = source.readInt(); 3437 uid = source.readInt(); 3438 pkgList = source.readStringArray(); 3439 flags = source.readInt(); 3440 lastTrimLevel = source.readInt(); 3441 importance = source.readInt(); 3442 lru = source.readInt(); 3443 importanceReasonCode = source.readInt(); 3444 importanceReasonPid = source.readInt(); 3445 importanceReasonComponent = ComponentName.readFromParcel(source); 3446 importanceReasonImportance = source.readInt(); 3447 processState = source.readInt(); 3448 } 3449 3450 public static final Creator<RunningAppProcessInfo> CREATOR = 3451 new Creator<RunningAppProcessInfo>() { 3452 public RunningAppProcessInfo createFromParcel(Parcel source) { 3453 return new RunningAppProcessInfo(source); 3454 } 3455 public RunningAppProcessInfo[] newArray(int size) { 3456 return new RunningAppProcessInfo[size]; 3457 } 3458 }; 3459 3460 private RunningAppProcessInfo(Parcel source) { 3461 readFromParcel(source); 3462 } 3463 } 3464 3465 /** 3466 * Returns a list of application processes installed on external media 3467 * that are running on the device. 3468 * 3469 * <p><b>Note: this method is only intended for debugging or building 3470 * a user-facing process management UI.</b></p> 3471 * 3472 * @return Returns a list of ApplicationInfo records, or null if none 3473 * This list ordering is not specified. 3474 * @hide 3475 */ 3476 public List<ApplicationInfo> getRunningExternalApplications() { 3477 try { 3478 return getService().getRunningExternalApplications(); 3479 } catch (RemoteException e) { 3480 throw e.rethrowFromSystemServer(); 3481 } 3482 } 3483 3484 /** 3485 * Sets the memory trim mode for a process and schedules a memory trim operation. 3486 * 3487 * <p><b>Note: this method is only intended for testing framework.</b></p> 3488 * 3489 * @return Returns true if successful. 3490 * @hide 3491 */ 3492 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3493 try { 3494 return getService().setProcessMemoryTrimLevel(process, userId, 3495 level); 3496 } catch (RemoteException e) { 3497 throw e.rethrowFromSystemServer(); 3498 } 3499 } 3500 3501 /** 3502 * Returns a list of application processes that are running on the device. 3503 * 3504 * <p><b>Note: this method is only intended for debugging or building 3505 * a user-facing process management UI.</b></p> 3506 * 3507 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3508 * running processes (it will not return an empty list). This list ordering is not 3509 * specified. 3510 */ 3511 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3512 try { 3513 return getService().getRunningAppProcesses(); 3514 } catch (RemoteException e) { 3515 throw e.rethrowFromSystemServer(); 3516 } 3517 } 3518 3519 /** 3520 * Return the importance of a given package name, based on the processes that are 3521 * currently running. The return value is one of the importance constants defined 3522 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3523 * processes that this package has code running inside of. If there are no processes 3524 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3525 * @hide 3526 */ 3527 @SystemApi @TestApi 3528 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3529 public @RunningAppProcessInfo.Importance int getPackageImportance(String packageName) { 3530 try { 3531 int procState = getService().getPackageProcessState(packageName, 3532 mContext.getOpPackageName()); 3533 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3534 } catch (RemoteException e) { 3535 throw e.rethrowFromSystemServer(); 3536 } 3537 } 3538 3539 /** 3540 * Return the importance of a given uid, based on the processes that are 3541 * currently running. The return value is one of the importance constants defined 3542 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3543 * processes that this uid has running. If there are no processes 3544 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3545 * @hide 3546 */ 3547 @SystemApi @TestApi 3548 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3549 public @RunningAppProcessInfo.Importance int getUidImportance(int uid) { 3550 try { 3551 int procState = getService().getUidProcessState(uid, 3552 mContext.getOpPackageName()); 3553 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3554 } catch (RemoteException e) { 3555 throw e.rethrowFromSystemServer(); 3556 } 3557 } 3558 3559 /** 3560 * Callback to get reports about changes to the importance of a uid. Use with 3561 * {@link #addOnUidImportanceListener}. 3562 * @hide 3563 */ 3564 @SystemApi @TestApi 3565 public interface OnUidImportanceListener { 3566 /** 3567 * The importance if a given uid has changed. Will be one of the importance 3568 * values in {@link RunningAppProcessInfo}; 3569 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3570 * when the uid is no longer running at all. This callback will happen on a thread 3571 * from a thread pool, not the main UI thread. 3572 * @param uid The uid whose importance has changed. 3573 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3574 */ 3575 void onUidImportance(int uid, @RunningAppProcessInfo.Importance int importance); 3576 } 3577 3578 /** 3579 * Start monitoring changes to the imoportance of uids running in the system. 3580 * @param listener The listener callback that will receive change reports. 3581 * @param importanceCutpoint The level of importance in which the caller is interested 3582 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3583 * is used here, you will receive a call each time a uids importance transitions between 3584 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3585 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3586 * 3587 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3588 * permission to use this feature.</p> 3589 * 3590 * @throws IllegalArgumentException If the listener is already registered. 3591 * @throws SecurityException If the caller does not hold 3592 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3593 * @hide 3594 */ 3595 @SystemApi @TestApi 3596 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3597 @RunningAppProcessInfo.Importance int importanceCutpoint) { 3598 synchronized (this) { 3599 if (mImportanceListeners.containsKey(listener)) { 3600 throw new IllegalArgumentException("Listener already registered: " + listener); 3601 } 3602 // TODO: implement the cut point in the system process to avoid IPCs. 3603 UidObserver observer = new UidObserver(listener, mContext); 3604 try { 3605 getService().registerUidObserver(observer, 3606 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3607 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3608 mContext.getOpPackageName()); 3609 } catch (RemoteException e) { 3610 throw e.rethrowFromSystemServer(); 3611 } 3612 mImportanceListeners.put(listener, observer); 3613 } 3614 } 3615 3616 /** 3617 * Remove an importance listener that was previously registered with 3618 * {@link #addOnUidImportanceListener}. 3619 * 3620 * @throws IllegalArgumentException If the listener is not registered. 3621 * @hide 3622 */ 3623 @SystemApi @TestApi 3624 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3625 synchronized (this) { 3626 UidObserver observer = mImportanceListeners.remove(listener); 3627 if (observer == null) { 3628 throw new IllegalArgumentException("Listener not registered: " + listener); 3629 } 3630 try { 3631 getService().unregisterUidObserver(observer); 3632 } catch (RemoteException e) { 3633 throw e.rethrowFromSystemServer(); 3634 } 3635 } 3636 } 3637 3638 /** 3639 * Return global memory state information for the calling process. This 3640 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3641 * only fields that will be filled in are 3642 * {@link RunningAppProcessInfo#pid}, 3643 * {@link RunningAppProcessInfo#uid}, 3644 * {@link RunningAppProcessInfo#lastTrimLevel}, 3645 * {@link RunningAppProcessInfo#importance}, 3646 * {@link RunningAppProcessInfo#lru}, and 3647 * {@link RunningAppProcessInfo#importanceReasonCode}. 3648 */ 3649 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3650 try { 3651 getService().getMyMemoryState(outState); 3652 } catch (RemoteException e) { 3653 throw e.rethrowFromSystemServer(); 3654 } 3655 } 3656 3657 /** 3658 * Return information about the memory usage of one or more processes. 3659 * 3660 * <p><b>Note: this method is only intended for debugging or building 3661 * a user-facing process management UI.</b></p> 3662 * 3663 * @param pids The pids of the processes whose memory usage is to be 3664 * retrieved. 3665 * @return Returns an array of memory information, one for each 3666 * requested pid. 3667 */ 3668 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3669 try { 3670 return getService().getProcessMemoryInfo(pids); 3671 } catch (RemoteException e) { 3672 throw e.rethrowFromSystemServer(); 3673 } 3674 } 3675 3676 /** 3677 * @deprecated This is now just a wrapper for 3678 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3679 * is no longer available to applications because it allows them to 3680 * break other applications by removing their alarms, stopping their 3681 * services, etc. 3682 */ 3683 @Deprecated 3684 public void restartPackage(String packageName) { 3685 killBackgroundProcesses(packageName); 3686 } 3687 3688 /** 3689 * Have the system immediately kill all background processes associated 3690 * with the given package. This is the same as the kernel killing those 3691 * processes to reclaim memory; the system will take care of restarting 3692 * these processes in the future as needed. 3693 * 3694 * @param packageName The name of the package whose processes are to 3695 * be killed. 3696 */ 3697 @RequiresPermission(Manifest.permission.KILL_BACKGROUND_PROCESSES) 3698 public void killBackgroundProcesses(String packageName) { 3699 try { 3700 getService().killBackgroundProcesses(packageName, 3701 UserHandle.myUserId()); 3702 } catch (RemoteException e) { 3703 throw e.rethrowFromSystemServer(); 3704 } 3705 } 3706 3707 /** 3708 * Kills the specified UID. 3709 * @param uid The UID to kill. 3710 * @param reason The reason for the kill. 3711 * 3712 * @hide 3713 */ 3714 @SystemApi 3715 @RequiresPermission(Manifest.permission.KILL_UID) 3716 public void killUid(int uid, String reason) { 3717 try { 3718 getService().killUid(UserHandle.getAppId(uid), 3719 UserHandle.getUserId(uid), reason); 3720 } catch (RemoteException e) { 3721 throw e.rethrowFromSystemServer(); 3722 } 3723 } 3724 3725 /** 3726 * Have the system perform a force stop of everything associated with 3727 * the given application package. All processes that share its uid 3728 * will be killed, all services it has running stopped, all activities 3729 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3730 * broadcast will be sent, so that any of its registered alarms can 3731 * be stopped, notifications removed, etc. 3732 * 3733 * <p>You must hold the permission 3734 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3735 * call this method. 3736 * 3737 * @param packageName The name of the package to be stopped. 3738 * @param userId The user for which the running package is to be stopped. 3739 * 3740 * @hide This is not available to third party applications due to 3741 * it allowing them to break other applications by stopping their 3742 * services, removing their alarms, etc. 3743 */ 3744 public void forceStopPackageAsUser(String packageName, int userId) { 3745 try { 3746 getService().forceStopPackage(packageName, userId); 3747 } catch (RemoteException e) { 3748 throw e.rethrowFromSystemServer(); 3749 } 3750 } 3751 3752 /** 3753 * @see #forceStopPackageAsUser(String, int) 3754 * @hide 3755 */ 3756 @SystemApi 3757 @RequiresPermission(Manifest.permission.FORCE_STOP_PACKAGES) 3758 public void forceStopPackage(String packageName) { 3759 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3760 } 3761 3762 /** 3763 * Get the device configuration attributes. 3764 */ 3765 public ConfigurationInfo getDeviceConfigurationInfo() { 3766 try { 3767 return getService().getDeviceConfigurationInfo(); 3768 } catch (RemoteException e) { 3769 throw e.rethrowFromSystemServer(); 3770 } 3771 } 3772 3773 /** 3774 * Get the preferred density of icons for the launcher. This is used when 3775 * custom drawables are created (e.g., for shortcuts). 3776 * 3777 * @return density in terms of DPI 3778 */ 3779 public int getLauncherLargeIconDensity() { 3780 final Resources res = mContext.getResources(); 3781 final int density = res.getDisplayMetrics().densityDpi; 3782 final int sw = res.getConfiguration().smallestScreenWidthDp; 3783 3784 if (sw < 600) { 3785 // Smaller than approx 7" tablets, use the regular icon size. 3786 return density; 3787 } 3788 3789 switch (density) { 3790 case DisplayMetrics.DENSITY_LOW: 3791 return DisplayMetrics.DENSITY_MEDIUM; 3792 case DisplayMetrics.DENSITY_MEDIUM: 3793 return DisplayMetrics.DENSITY_HIGH; 3794 case DisplayMetrics.DENSITY_TV: 3795 return DisplayMetrics.DENSITY_XHIGH; 3796 case DisplayMetrics.DENSITY_HIGH: 3797 return DisplayMetrics.DENSITY_XHIGH; 3798 case DisplayMetrics.DENSITY_XHIGH: 3799 return DisplayMetrics.DENSITY_XXHIGH; 3800 case DisplayMetrics.DENSITY_XXHIGH: 3801 return DisplayMetrics.DENSITY_XHIGH * 2; 3802 default: 3803 // The density is some abnormal value. Return some other 3804 // abnormal value that is a reasonable scaling of it. 3805 return (int)((density*1.5f)+.5f); 3806 } 3807 } 3808 3809 /** 3810 * Get the preferred launcher icon size. This is used when custom drawables 3811 * are created (e.g., for shortcuts). 3812 * 3813 * @return dimensions of square icons in terms of pixels 3814 */ 3815 public int getLauncherLargeIconSize() { 3816 return getLauncherLargeIconSizeInner(mContext); 3817 } 3818 3819 static int getLauncherLargeIconSizeInner(Context context) { 3820 final Resources res = context.getResources(); 3821 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3822 final int sw = res.getConfiguration().smallestScreenWidthDp; 3823 3824 if (sw < 600) { 3825 // Smaller than approx 7" tablets, use the regular icon size. 3826 return size; 3827 } 3828 3829 final int density = res.getDisplayMetrics().densityDpi; 3830 3831 switch (density) { 3832 case DisplayMetrics.DENSITY_LOW: 3833 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3834 case DisplayMetrics.DENSITY_MEDIUM: 3835 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3836 case DisplayMetrics.DENSITY_TV: 3837 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3838 case DisplayMetrics.DENSITY_HIGH: 3839 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3840 case DisplayMetrics.DENSITY_XHIGH: 3841 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3842 case DisplayMetrics.DENSITY_XXHIGH: 3843 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3844 default: 3845 // The density is some abnormal value. Return some other 3846 // abnormal value that is a reasonable scaling of it. 3847 return (int)((size*1.5f) + .5f); 3848 } 3849 } 3850 3851 /** 3852 * Returns "true" if the user interface is currently being messed with 3853 * by a monkey. 3854 */ 3855 public static boolean isUserAMonkey() { 3856 try { 3857 return getService().isUserAMonkey(); 3858 } catch (RemoteException e) { 3859 throw e.rethrowFromSystemServer(); 3860 } 3861 } 3862 3863 /** 3864 * Returns "true" if device is running in a test harness. 3865 */ 3866 public static boolean isRunningInTestHarness() { 3867 return SystemProperties.getBoolean("ro.test_harness", false); 3868 } 3869 3870 /** 3871 * Returns the launch count of each installed package. 3872 * 3873 * @hide 3874 */ 3875 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3876 try { 3877 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3878 ServiceManager.getService("usagestats")); 3879 if (usageStatsService == null) { 3880 return new HashMap<String, Integer>(); 3881 } 3882 3883 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3884 ActivityThread.currentPackageName()); 3885 if (allPkgUsageStats == null) { 3886 return new HashMap<String, Integer>(); 3887 } 3888 3889 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3890 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3891 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3892 } 3893 3894 return launchCounts; 3895 } catch (RemoteException e) { 3896 Log.w(TAG, "Could not query launch counts", e); 3897 return new HashMap<String, Integer>(); 3898 } 3899 }*/ 3900 3901 /** @hide */ 3902 public static int checkComponentPermission(String permission, int uid, 3903 int owningUid, boolean exported) { 3904 // Root, system server get to do everything. 3905 final int appId = UserHandle.getAppId(uid); 3906 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3907 return PackageManager.PERMISSION_GRANTED; 3908 } 3909 // Isolated processes don't get any permissions. 3910 if (UserHandle.isIsolated(uid)) { 3911 return PackageManager.PERMISSION_DENIED; 3912 } 3913 // If there is a uid that owns whatever is being accessed, it has 3914 // blanket access to it regardless of the permissions it requires. 3915 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3916 return PackageManager.PERMISSION_GRANTED; 3917 } 3918 // If the target is not exported, then nobody else can get to it. 3919 if (!exported) { 3920 /* 3921 RuntimeException here = new RuntimeException("here"); 3922 here.fillInStackTrace(); 3923 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3924 here); 3925 */ 3926 return PackageManager.PERMISSION_DENIED; 3927 } 3928 if (permission == null) { 3929 return PackageManager.PERMISSION_GRANTED; 3930 } 3931 try { 3932 return AppGlobals.getPackageManager() 3933 .checkUidPermission(permission, uid); 3934 } catch (RemoteException e) { 3935 throw e.rethrowFromSystemServer(); 3936 } 3937 } 3938 3939 /** @hide */ 3940 public static int checkUidPermission(String permission, int uid) { 3941 try { 3942 return AppGlobals.getPackageManager() 3943 .checkUidPermission(permission, uid); 3944 } catch (RemoteException e) { 3945 throw e.rethrowFromSystemServer(); 3946 } 3947 } 3948 3949 /** 3950 * @hide 3951 * Helper for dealing with incoming user arguments to system service calls. 3952 * Takes care of checking permissions and converting USER_CURRENT to the 3953 * actual current user. 3954 * 3955 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3956 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3957 * @param userId The user id argument supplied by the caller -- this is the user 3958 * they want to run as. 3959 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3960 * to get a USER_ALL returned and deal with it correctly. If false, 3961 * an exception will be thrown if USER_ALL is supplied. 3962 * @param requireFull If true, the caller must hold 3963 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3964 * different user than their current process; otherwise they must hold 3965 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3966 * @param name Optional textual name of the incoming call; only for generating error messages. 3967 * @param callerPackage Optional package name of caller; only for error messages. 3968 * 3969 * @return Returns the user ID that the call should run as. Will always be a concrete 3970 * user number, unless <var>allowAll</var> is true in which case it could also be 3971 * USER_ALL. 3972 */ 3973 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3974 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3975 if (UserHandle.getUserId(callingUid) == userId) { 3976 return userId; 3977 } 3978 try { 3979 return getService().handleIncomingUser(callingPid, 3980 callingUid, userId, allowAll, requireFull, name, callerPackage); 3981 } catch (RemoteException e) { 3982 throw e.rethrowFromSystemServer(); 3983 } 3984 } 3985 3986 /** 3987 * Gets the userId of the current foreground user. Requires system permissions. 3988 * @hide 3989 */ 3990 @SystemApi 3991 public static int getCurrentUser() { 3992 UserInfo ui; 3993 try { 3994 ui = getService().getCurrentUser(); 3995 return ui != null ? ui.id : 0; 3996 } catch (RemoteException e) { 3997 throw e.rethrowFromSystemServer(); 3998 } 3999 } 4000 4001 /** 4002 * @param userid the user's id. Zero indicates the default user. 4003 * @hide 4004 */ 4005 public boolean switchUser(int userid) { 4006 try { 4007 return getService().switchUser(userid); 4008 } catch (RemoteException e) { 4009 throw e.rethrowFromSystemServer(); 4010 } 4011 } 4012 4013 /** 4014 * Logs out current current foreground user by switching to the system user and stopping the 4015 * user being switched from. 4016 * @hide 4017 */ 4018 public static void logoutCurrentUser() { 4019 int currentUser = ActivityManager.getCurrentUser(); 4020 if (currentUser != UserHandle.USER_SYSTEM) { 4021 try { 4022 getService().switchUser(UserHandle.USER_SYSTEM); 4023 getService().stopUser(currentUser, /* force= */ false, null); 4024 } catch (RemoteException e) { 4025 e.rethrowFromSystemServer(); 4026 } 4027 } 4028 } 4029 4030 /** {@hide} */ 4031 public static final int FLAG_OR_STOPPED = 1 << 0; 4032 /** {@hide} */ 4033 public static final int FLAG_AND_LOCKED = 1 << 1; 4034 /** {@hide} */ 4035 public static final int FLAG_AND_UNLOCKED = 1 << 2; 4036 /** {@hide} */ 4037 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 4038 4039 /** 4040 * Return whether the given user is actively running. This means that 4041 * the user is in the "started" state, not "stopped" -- it is currently 4042 * allowed to run code through scheduled alarms, receiving broadcasts, 4043 * etc. A started user may be either the current foreground user or a 4044 * background user; the result here does not distinguish between the two. 4045 * @param userId the user's id. Zero indicates the default user. 4046 * @hide 4047 */ 4048 public boolean isUserRunning(int userId) { 4049 try { 4050 return getService().isUserRunning(userId, 0); 4051 } catch (RemoteException e) { 4052 throw e.rethrowFromSystemServer(); 4053 } 4054 } 4055 4056 /** {@hide} */ 4057 public boolean isVrModePackageEnabled(ComponentName component) { 4058 try { 4059 return getService().isVrModePackageEnabled(component); 4060 } catch (RemoteException e) { 4061 throw e.rethrowFromSystemServer(); 4062 } 4063 } 4064 4065 /** 4066 * Perform a system dump of various state associated with the given application 4067 * package name. This call blocks while the dump is being performed, so should 4068 * not be done on a UI thread. The data will be written to the given file 4069 * descriptor as text. 4070 * @param fd The file descriptor that the dump should be written to. The file 4071 * descriptor is <em>not</em> closed by this function; the caller continues to 4072 * own it. 4073 * @param packageName The name of the package that is to be dumped. 4074 */ 4075 @RequiresPermission(Manifest.permission.DUMP) 4076 public void dumpPackageState(FileDescriptor fd, String packageName) { 4077 dumpPackageStateStatic(fd, packageName); 4078 } 4079 4080 /** 4081 * @hide 4082 */ 4083 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 4084 FileOutputStream fout = new FileOutputStream(fd); 4085 PrintWriter pw = new FastPrintWriter(fout); 4086 dumpService(pw, fd, "package", new String[] { packageName }); 4087 pw.println(); 4088 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 4089 "-a", "package", packageName }); 4090 pw.println(); 4091 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 4092 pw.println(); 4093 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 4094 pw.println(); 4095 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 4096 pw.println(); 4097 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 4098 pw.flush(); 4099 } 4100 4101 /** 4102 * @hide 4103 */ 4104 public static boolean isSystemReady() { 4105 if (!sSystemReady) { 4106 if (ActivityThread.isSystem()) { 4107 sSystemReady = 4108 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 4109 } else { 4110 // Since this is being called from outside system server, system should be 4111 // ready by now. 4112 sSystemReady = true; 4113 } 4114 } 4115 return sSystemReady; 4116 } 4117 4118 /** 4119 * @hide 4120 */ 4121 public static void broadcastStickyIntent(Intent intent, int userId) { 4122 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 4123 } 4124 4125 /** 4126 * Convenience for sending a sticky broadcast. For internal use only. 4127 * 4128 * @hide 4129 */ 4130 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 4131 try { 4132 getService().broadcastIntent( 4133 null, intent, null, null, Activity.RESULT_OK, null, null, 4134 null /*permission*/, appOp, null, false, true, userId); 4135 } catch (RemoteException ex) { 4136 } 4137 } 4138 4139 /** 4140 * @hide 4141 */ 4142 public static void noteWakeupAlarm(PendingIntent ps, int sourceUid, String sourcePkg, 4143 String tag) { 4144 try { 4145 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, 4146 sourceUid, sourcePkg, tag); 4147 } catch (RemoteException ex) { 4148 } 4149 } 4150 4151 /** 4152 * @hide 4153 */ 4154 public static void noteAlarmStart(PendingIntent ps, int sourceUid, String tag) { 4155 try { 4156 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4157 } catch (RemoteException ex) { 4158 } 4159 } 4160 4161 /** 4162 * @hide 4163 */ 4164 public static void noteAlarmFinish(PendingIntent ps, int sourceUid, String tag) { 4165 try { 4166 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4167 } catch (RemoteException ex) { 4168 } 4169 } 4170 4171 /** 4172 * @hide 4173 */ 4174 public static IActivityManager getService() { 4175 return IActivityManagerSingleton.get(); 4176 } 4177 4178 private static final Singleton<IActivityManager> IActivityManagerSingleton = 4179 new Singleton<IActivityManager>() { 4180 @Override 4181 protected IActivityManager create() { 4182 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 4183 final IActivityManager am = IActivityManager.Stub.asInterface(b); 4184 return am; 4185 } 4186 }; 4187 4188 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 4189 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 4190 IBinder service = ServiceManager.checkService(name); 4191 if (service == null) { 4192 pw.println(" (Service not found)"); 4193 return; 4194 } 4195 TransferPipe tp = null; 4196 try { 4197 pw.flush(); 4198 tp = new TransferPipe(); 4199 tp.setBufferPrefix(" "); 4200 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 4201 tp.go(fd, 10000); 4202 } catch (Throwable e) { 4203 if (tp != null) { 4204 tp.kill(); 4205 } 4206 pw.println("Failure dumping service:"); 4207 e.printStackTrace(pw); 4208 } 4209 } 4210 4211 /** 4212 * Request that the system start watching for the calling process to exceed a pss 4213 * size as given here. Once called, the system will look for any occasions where it 4214 * sees the associated process with a larger pss size and, when this happens, automatically 4215 * pull a heap dump from it and allow the user to share the data. Note that this request 4216 * continues running even if the process is killed and restarted. To remove the watch, 4217 * use {@link #clearWatchHeapLimit()}. 4218 * 4219 * <p>This API only work if the calling process has been marked as 4220 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 4221 * (userdebug or eng) build.</p> 4222 * 4223 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 4224 * handle heap limit reports themselves.</p> 4225 * 4226 * @param pssSize The size in bytes to set the limit at. 4227 */ 4228 public void setWatchHeapLimit(long pssSize) { 4229 try { 4230 getService().setDumpHeapDebugLimit(null, 0, pssSize, 4231 mContext.getPackageName()); 4232 } catch (RemoteException e) { 4233 throw e.rethrowFromSystemServer(); 4234 } 4235 } 4236 4237 /** 4238 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 4239 * If your package has an activity handling this action, it will be launched with the 4240 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 4241 * match the activty must support this action and a MIME type of "*/*". 4242 */ 4243 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 4244 4245 /** 4246 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 4247 */ 4248 public void clearWatchHeapLimit() { 4249 try { 4250 getService().setDumpHeapDebugLimit(null, 0, 0, null); 4251 } catch (RemoteException e) { 4252 throw e.rethrowFromSystemServer(); 4253 } 4254 } 4255 4256 /** 4257 * @hide 4258 */ 4259 public void startLockTaskMode(int taskId) { 4260 try { 4261 getService().startLockTaskModeById(taskId); 4262 } catch (RemoteException e) { 4263 throw e.rethrowFromSystemServer(); 4264 } 4265 } 4266 4267 /** 4268 * @hide 4269 */ 4270 public void stopLockTaskMode() { 4271 try { 4272 getService().stopLockTaskMode(); 4273 } catch (RemoteException e) { 4274 throw e.rethrowFromSystemServer(); 4275 } 4276 } 4277 4278 /** 4279 * Return whether currently in lock task mode. When in this mode 4280 * no new tasks can be created or switched to. 4281 * 4282 * @see Activity#startLockTask() 4283 * 4284 * @deprecated Use {@link #getLockTaskModeState} instead. 4285 */ 4286 @Deprecated 4287 public boolean isInLockTaskMode() { 4288 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 4289 } 4290 4291 /** 4292 * Return the current state of task locking. The three possible outcomes 4293 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 4294 * and {@link #LOCK_TASK_MODE_PINNED}. 4295 * 4296 * @see Activity#startLockTask() 4297 */ 4298 public int getLockTaskModeState() { 4299 try { 4300 return getService().getLockTaskModeState(); 4301 } catch (RemoteException e) { 4302 throw e.rethrowFromSystemServer(); 4303 } 4304 } 4305 4306 /** 4307 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 4308 * thread can be a VR thread in a process at a time, and that thread may be subject to 4309 * restrictions on the amount of time it can run. 4310 * 4311 * If persistent VR mode is set, whatever thread has been granted aggressive scheduling via this 4312 * method will return to normal operation, and calling this method will do nothing while 4313 * persistent VR mode is enabled. 4314 * 4315 * To reset the VR thread for an application, a tid of 0 can be passed. 4316 * 4317 * @see android.os.Process#myTid() 4318 * @param tid tid of the VR thread 4319 */ 4320 public static void setVrThread(int tid) { 4321 try { 4322 getService().setVrThread(tid); 4323 } catch (RemoteException e) { 4324 // pass 4325 } 4326 } 4327 4328 /** 4329 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads that persist 4330 * beyond a single process. Only one thread can be a 4331 * persistent VR thread at a time, and that thread may be subject to restrictions on the amount 4332 * of time it can run. Calling this method will disable aggressive scheduling for non-persistent 4333 * VR threads set via {@link #setVrThread}. If persistent VR mode is disabled then the 4334 * persistent VR thread loses its new scheduling priority; this method must be called again to 4335 * set the persistent thread. 4336 * 4337 * To reset the persistent VR thread, a tid of 0 can be passed. 4338 * 4339 * @see android.os.Process#myTid() 4340 * @param tid tid of the VR thread 4341 * @hide 4342 */ 4343 @RequiresPermission(Manifest.permission.RESTRICTED_VR_ACCESS) 4344 public static void setPersistentVrThread(int tid) { 4345 try { 4346 getService().setPersistentVrThread(tid); 4347 } catch (RemoteException e) { 4348 // pass 4349 } 4350 } 4351 4352 /** 4353 * The AppTask allows you to manage your own application's tasks. 4354 * See {@link android.app.ActivityManager#getAppTasks()} 4355 */ 4356 public static class AppTask { 4357 private IAppTask mAppTaskImpl; 4358 4359 /** @hide */ 4360 public AppTask(IAppTask task) { 4361 mAppTaskImpl = task; 4362 } 4363 4364 /** 4365 * Finishes all activities in this task and removes it from the recent tasks list. 4366 */ 4367 public void finishAndRemoveTask() { 4368 try { 4369 mAppTaskImpl.finishAndRemoveTask(); 4370 } catch (RemoteException e) { 4371 throw e.rethrowFromSystemServer(); 4372 } 4373 } 4374 4375 /** 4376 * Get the RecentTaskInfo associated with this task. 4377 * 4378 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 4379 */ 4380 public RecentTaskInfo getTaskInfo() { 4381 try { 4382 return mAppTaskImpl.getTaskInfo(); 4383 } catch (RemoteException e) { 4384 throw e.rethrowFromSystemServer(); 4385 } 4386 } 4387 4388 /** 4389 * Bring this task to the foreground. If it contains activities, they will be 4390 * brought to the foreground with it and their instances re-created if needed. 4391 * If it doesn't contain activities, the root activity of the task will be 4392 * re-launched. 4393 */ 4394 public void moveToFront() { 4395 try { 4396 mAppTaskImpl.moveToFront(); 4397 } catch (RemoteException e) { 4398 throw e.rethrowFromSystemServer(); 4399 } 4400 } 4401 4402 /** 4403 * Start an activity in this task. Brings the task to the foreground. If this task 4404 * is not currently active (that is, its id < 0), then a new activity for the given 4405 * Intent will be launched as the root of the task and the task brought to the 4406 * foreground. Otherwise, if this task is currently active and the Intent does not specify 4407 * an activity to launch in a new task, then a new activity for the given Intent will 4408 * be launched on top of the task and the task brought to the foreground. If this 4409 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 4410 * or would otherwise be launched in to a new task, then the activity not launched but 4411 * this task be brought to the foreground and a new intent delivered to the top 4412 * activity if appropriate. 4413 * 4414 * <p>In other words, you generally want to use an Intent here that does not specify 4415 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 4416 * and let the system do the right thing.</p> 4417 * 4418 * @param intent The Intent describing the new activity to be launched on the task. 4419 * @param options Optional launch options. 4420 * 4421 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 4422 */ 4423 public void startActivity(Context context, Intent intent, Bundle options) { 4424 ActivityThread thread = ActivityThread.currentActivityThread(); 4425 thread.getInstrumentation().execStartActivityFromAppTask(context, 4426 thread.getApplicationThread(), mAppTaskImpl, intent, options); 4427 } 4428 4429 /** 4430 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 4431 * Intent of this AppTask. 4432 * 4433 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 4434 * be set; otherwise, it will be cleared. 4435 */ 4436 public void setExcludeFromRecents(boolean exclude) { 4437 try { 4438 mAppTaskImpl.setExcludeFromRecents(exclude); 4439 } catch (RemoteException e) { 4440 throw e.rethrowFromSystemServer(); 4441 } 4442 } 4443 } 4444} 4445