ActivityManager.java revision 4eb64fdbcf899a81d0a6a04dc3658d03d9df8247
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.graphics.Canvas; 26import android.graphics.Matrix; 27import android.graphics.Point; 28import android.os.BatteryStats; 29import android.os.IBinder; 30import android.os.ParcelFileDescriptor; 31 32import android.util.Log; 33import com.android.internal.app.procstats.ProcessStats; 34import com.android.internal.os.TransferPipe; 35import com.android.internal.util.FastPrintWriter; 36 37import android.content.ComponentName; 38import android.content.Context; 39import android.content.Intent; 40import android.content.UriPermission; 41import android.content.pm.ApplicationInfo; 42import android.content.pm.ConfigurationInfo; 43import android.content.pm.IPackageDataObserver; 44import android.content.pm.PackageManager; 45import android.content.pm.ParceledListSlice; 46import android.content.pm.UserInfo; 47import android.content.res.Resources; 48import android.graphics.Bitmap; 49import android.graphics.Color; 50import android.graphics.Rect; 51import android.os.Bundle; 52import android.os.Debug; 53import android.os.Handler; 54import android.os.Parcel; 55import android.os.Parcelable; 56import android.os.Process; 57import android.os.RemoteException; 58import android.os.ServiceManager; 59import android.os.SystemProperties; 60import android.os.UserHandle; 61import android.text.TextUtils; 62import android.util.DisplayMetrics; 63import android.util.Size; 64import android.util.Slog; 65 66import org.xmlpull.v1.XmlSerializer; 67 68import java.io.FileDescriptor; 69import java.io.FileOutputStream; 70import java.io.IOException; 71import java.io.PrintWriter; 72import java.lang.annotation.Retention; 73import java.lang.annotation.RetentionPolicy; 74import java.util.ArrayList; 75import java.util.List; 76 77/** 78 * Interact with the overall activities running in the system. 79 */ 80public class ActivityManager { 81 private static String TAG = "ActivityManager"; 82 83 private static int gMaxRecentTasks = -1; 84 85 private final Context mContext; 86 private final Handler mHandler; 87 88 /** 89 * Defines acceptable types of bugreports. 90 * @hide 91 */ 92 @Retention(RetentionPolicy.SOURCE) 93 @IntDef({ 94 BUGREPORT_OPTION_FULL, 95 BUGREPORT_OPTION_INTERACTIVE, 96 BUGREPORT_OPTION_REMOTE 97 }) 98 public @interface BugreportMode {} 99 /** 100 * Takes a bugreport without user interference (and hence causing less 101 * interference to the system), but includes all sections. 102 * @hide 103 */ 104 public static final int BUGREPORT_OPTION_FULL = 0; 105 /** 106 * Allows user to monitor progress and enter additional data; might not include all 107 * sections. 108 * @hide 109 */ 110 public static final int BUGREPORT_OPTION_INTERACTIVE = 1; 111 /** 112 * Takes a bugreport requested remotely by administrator of the Device Owner app, 113 * not the device's user. 114 * @hide 115 */ 116 public static final int BUGREPORT_OPTION_REMOTE = 2; 117 118 /** 119 * <a href="{@docRoot}guide/topics/manifest/meta-data-element.html">{@code 120 * <meta-data>}</a> name for a 'home' Activity that declares a package that is to be 121 * uninstalled in lieu of the declaring one. The package named here must be 122 * signed with the same certificate as the one declaring the {@code <meta-data>}. 123 */ 124 public static final String META_HOME_ALTERNATE = "android.app.home.alternate"; 125 126 /** 127 * Result for IActivityManager.startActivity: trying to start a background user 128 * activity that shouldn't be displayed for all users. 129 * @hide 130 */ 131 public static final int START_NOT_CURRENT_USER_ACTIVITY = -8; 132 133 /** 134 * Result for IActivityManager.startActivity: trying to start an activity under voice 135 * control when that activity does not support the VOICE category. 136 * @hide 137 */ 138 public static final int START_NOT_VOICE_COMPATIBLE = -7; 139 140 /** 141 * Result for IActivityManager.startActivity: an error where the 142 * start had to be canceled. 143 * @hide 144 */ 145 public static final int START_CANCELED = -6; 146 147 /** 148 * Result for IActivityManager.startActivity: an error where the 149 * thing being started is not an activity. 150 * @hide 151 */ 152 public static final int START_NOT_ACTIVITY = -5; 153 154 /** 155 * Result for IActivityManager.startActivity: an error where the 156 * caller does not have permission to start the activity. 157 * @hide 158 */ 159 public static final int START_PERMISSION_DENIED = -4; 160 161 /** 162 * Result for IActivityManager.startActivity: an error where the 163 * caller has requested both to forward a result and to receive 164 * a result. 165 * @hide 166 */ 167 public static final int START_FORWARD_AND_REQUEST_CONFLICT = -3; 168 169 /** 170 * Result for IActivityManager.startActivity: an error where the 171 * requested class is not found. 172 * @hide 173 */ 174 public static final int START_CLASS_NOT_FOUND = -2; 175 176 /** 177 * Result for IActivityManager.startActivity: an error where the 178 * given Intent could not be resolved to an activity. 179 * @hide 180 */ 181 public static final int START_INTENT_NOT_RESOLVED = -1; 182 183 /** 184 * Result for IActivityManaqer.startActivity: the activity was started 185 * successfully as normal. 186 * @hide 187 */ 188 public static final int START_SUCCESS = 0; 189 190 /** 191 * Result for IActivityManaqer.startActivity: the caller asked that the Intent not 192 * be executed if it is the recipient, and that is indeed the case. 193 * @hide 194 */ 195 public static final int START_RETURN_INTENT_TO_CALLER = 1; 196 197 /** 198 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 199 * a task was simply brought to the foreground. 200 * @hide 201 */ 202 public static final int START_TASK_TO_FRONT = 2; 203 204 /** 205 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 206 * the given Intent was given to the existing top activity. 207 * @hide 208 */ 209 public static final int START_DELIVERED_TO_TOP = 3; 210 211 /** 212 * Result for IActivityManaqer.startActivity: request was canceled because 213 * app switches are temporarily canceled to ensure the user's last request 214 * (such as pressing home) is performed. 215 * @hide 216 */ 217 public static final int START_SWITCHES_CANCELED = 4; 218 219 /** 220 * Result for IActivityManaqer.startActivity: a new activity was attempted to be started 221 * while in Lock Task Mode. 222 * @hide 223 */ 224 public static final int START_RETURN_LOCK_TASK_MODE_VIOLATION = 5; 225 226 /** 227 * Flag for IActivityManaqer.startActivity: do special start mode where 228 * a new activity is launched only if it is needed. 229 * @hide 230 */ 231 public static final int START_FLAG_ONLY_IF_NEEDED = 1<<0; 232 233 /** 234 * Flag for IActivityManaqer.startActivity: launch the app for 235 * debugging. 236 * @hide 237 */ 238 public static final int START_FLAG_DEBUG = 1<<1; 239 240 /** 241 * Flag for IActivityManaqer.startActivity: launch the app for 242 * allocation tracking. 243 * @hide 244 */ 245 public static final int START_FLAG_TRACK_ALLOCATION = 1<<2; 246 247 /** 248 * Flag for IActivityManaqer.startActivity: launch the app with 249 * native debugging support. 250 * @hide 251 */ 252 public static final int START_FLAG_NATIVE_DEBUGGING = 1<<3; 253 254 /** 255 * Result for IActivityManaqer.broadcastIntent: success! 256 * @hide 257 */ 258 public static final int BROADCAST_SUCCESS = 0; 259 260 /** 261 * Result for IActivityManaqer.broadcastIntent: attempt to broadcast 262 * a sticky intent without appropriate permission. 263 * @hide 264 */ 265 public static final int BROADCAST_STICKY_CANT_HAVE_PERMISSION = -1; 266 267 /** 268 * Result for IActivityManager.broadcastIntent: trying to send a broadcast 269 * to a stopped user. Fail. 270 * @hide 271 */ 272 public static final int BROADCAST_FAILED_USER_STOPPED = -2; 273 274 /** 275 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 276 * for a sendBroadcast operation. 277 * @hide 278 */ 279 public static final int INTENT_SENDER_BROADCAST = 1; 280 281 /** 282 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 283 * for a startActivity operation. 284 * @hide 285 */ 286 public static final int INTENT_SENDER_ACTIVITY = 2; 287 288 /** 289 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 290 * for an activity result operation. 291 * @hide 292 */ 293 public static final int INTENT_SENDER_ACTIVITY_RESULT = 3; 294 295 /** 296 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 297 * for a startService operation. 298 * @hide 299 */ 300 public static final int INTENT_SENDER_SERVICE = 4; 301 302 /** @hide User operation call: success! */ 303 public static final int USER_OP_SUCCESS = 0; 304 305 /** @hide User operation call: given user id is not known. */ 306 public static final int USER_OP_UNKNOWN_USER = -1; 307 308 /** @hide User operation call: given user id is the current user, can't be stopped. */ 309 public static final int USER_OP_IS_CURRENT = -2; 310 311 /** @hide User operation call: system user can't be stopped. */ 312 public static final int USER_OP_ERROR_IS_SYSTEM = -3; 313 314 /** @hide User operation call: one of related users cannot be stopped. */ 315 public static final int USER_OP_ERROR_RELATED_USERS_CANNOT_STOP = -4; 316 317 /** @hide Process does not exist. */ 318 public static final int PROCESS_STATE_NONEXISTENT = -1; 319 320 /** @hide Process is a persistent system process. */ 321 public static final int PROCESS_STATE_PERSISTENT = 0; 322 323 /** @hide Process is a persistent system process and is doing UI. */ 324 public static final int PROCESS_STATE_PERSISTENT_UI = 1; 325 326 /** @hide Process is hosting the current top activities. Note that this covers 327 * all activities that are visible to the user. */ 328 public static final int PROCESS_STATE_TOP = 2; 329 330 /** @hide Process is hosting a foreground service due to a system binding. */ 331 public static final int PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 3; 332 333 /** @hide Process is hosting a foreground service. */ 334 public static final int PROCESS_STATE_FOREGROUND_SERVICE = 4; 335 336 /** @hide Same as {@link #PROCESS_STATE_TOP} but while device is sleeping. */ 337 public static final int PROCESS_STATE_TOP_SLEEPING = 5; 338 339 /** @hide Process is important to the user, and something they are aware of. */ 340 public static final int PROCESS_STATE_IMPORTANT_FOREGROUND = 6; 341 342 /** @hide Process is important to the user, but not something they are aware of. */ 343 public static final int PROCESS_STATE_IMPORTANT_BACKGROUND = 7; 344 345 /** @hide Process is in the background running a backup/restore operation. */ 346 public static final int PROCESS_STATE_BACKUP = 8; 347 348 /** @hide Process is in the background, but it can't restore its state so we want 349 * to try to avoid killing it. */ 350 public static final int PROCESS_STATE_HEAVY_WEIGHT = 9; 351 352 /** @hide Process is in the background running a service. Unlike oom_adj, this level 353 * is used for both the normal running in background state and the executing 354 * operations state. */ 355 public static final int PROCESS_STATE_SERVICE = 10; 356 357 /** @hide Process is in the background running a receiver. Note that from the 358 * perspective of oom_adj receivers run at a higher foreground level, but for our 359 * prioritization here that is not necessary and putting them below services means 360 * many fewer changes in some process states as they receive broadcasts. */ 361 public static final int PROCESS_STATE_RECEIVER = 11; 362 363 /** @hide Process is in the background but hosts the home activity. */ 364 public static final int PROCESS_STATE_HOME = 12; 365 366 /** @hide Process is in the background but hosts the last shown activity. */ 367 public static final int PROCESS_STATE_LAST_ACTIVITY = 13; 368 369 /** @hide Process is being cached for later use and contains activities. */ 370 public static final int PROCESS_STATE_CACHED_ACTIVITY = 14; 371 372 /** @hide Process is being cached for later use and is a client of another cached 373 * process that contains activities. */ 374 public static final int PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 15; 375 376 /** @hide Process is being cached for later use and is empty. */ 377 public static final int PROCESS_STATE_CACHED_EMPTY = 16; 378 379 /** @hide Should this process state be considered a background state? */ 380 public static final boolean isProcStateBackground(int procState) { 381 return procState >= PROCESS_STATE_BACKUP; 382 } 383 384 /** @hide requestType for assist context: only basic information. */ 385 public static final int ASSIST_CONTEXT_BASIC = 0; 386 387 /** @hide requestType for assist context: generate full AssistStructure. */ 388 public static final int ASSIST_CONTEXT_FULL = 1; 389 390 /** @hide Flag for registerUidObserver: report changes in process state. */ 391 public static final int UID_OBSERVER_PROCSTATE = 1<<0; 392 393 /** @hide Flag for registerUidObserver: report uid gone. */ 394 public static final int UID_OBSERVER_GONE = 1<<1; 395 396 /** @hide Flag for registerUidObserver: report uid has become idle. */ 397 public static final int UID_OBSERVER_IDLE = 1<<2; 398 399 /** @hide Flag for registerUidObserver: report uid has become active. */ 400 public static final int UID_OBSERVER_ACTIVE = 1<<3; 401 402 /** @hide Mode for {@link IActivityManager#getAppStartMode}: normal free-to-run operation. */ 403 public static final int APP_START_MODE_NORMAL = 0; 404 405 /** @hide Mode for {@link IActivityManager#getAppStartMode}: delay running until later. */ 406 public static final int APP_START_MODE_DELAYED = 1; 407 408 /** @hide Mode for {@link IActivityManager#getAppStartMode}: disable/cancel pending 409 * launches. */ 410 public static final int APP_START_MODE_DISABLED = 2; 411 412 /** 413 * Lock task mode is not active. 414 */ 415 public static final int LOCK_TASK_MODE_NONE = 0; 416 417 /** 418 * Full lock task mode is active. 419 */ 420 public static final int LOCK_TASK_MODE_LOCKED = 1; 421 422 /** 423 * App pinning mode is active. 424 */ 425 public static final int LOCK_TASK_MODE_PINNED = 2; 426 427 Point mAppTaskThumbnailSize; 428 429 /*package*/ ActivityManager(Context context, Handler handler) { 430 mContext = context; 431 mHandler = handler; 432 } 433 434 /** 435 * Screen compatibility mode: the application most always run in 436 * compatibility mode. 437 * @hide 438 */ 439 public static final int COMPAT_MODE_ALWAYS = -1; 440 441 /** 442 * Screen compatibility mode: the application can never run in 443 * compatibility mode. 444 * @hide 445 */ 446 public static final int COMPAT_MODE_NEVER = -2; 447 448 /** 449 * Screen compatibility mode: unknown. 450 * @hide 451 */ 452 public static final int COMPAT_MODE_UNKNOWN = -3; 453 454 /** 455 * Screen compatibility mode: the application currently has compatibility 456 * mode disabled. 457 * @hide 458 */ 459 public static final int COMPAT_MODE_DISABLED = 0; 460 461 /** 462 * Screen compatibility mode: the application currently has compatibility 463 * mode enabled. 464 * @hide 465 */ 466 public static final int COMPAT_MODE_ENABLED = 1; 467 468 /** 469 * Screen compatibility mode: request to toggle the application's 470 * compatibility mode. 471 * @hide 472 */ 473 public static final int COMPAT_MODE_TOGGLE = 2; 474 475 /** @hide */ 476 public static class StackId { 477 /** Invalid stack ID. */ 478 public static final int INVALID_STACK_ID = -1; 479 480 /** First static stack ID. */ 481 public static final int FIRST_STATIC_STACK_ID = 0; 482 483 /** Home activity stack ID. */ 484 public static final int HOME_STACK_ID = FIRST_STATIC_STACK_ID; 485 486 /** ID of stack where fullscreen activities are normally launched into. */ 487 public static final int FULLSCREEN_WORKSPACE_STACK_ID = 1; 488 489 /** ID of stack where freeform/resized activities are normally launched into. */ 490 public static final int FREEFORM_WORKSPACE_STACK_ID = FULLSCREEN_WORKSPACE_STACK_ID + 1; 491 492 /** ID of stack that occupies a dedicated region of the screen. */ 493 public static final int DOCKED_STACK_ID = FREEFORM_WORKSPACE_STACK_ID + 1; 494 495 /** ID of stack that always on top (always visible) when it exist. */ 496 public static final int PINNED_STACK_ID = DOCKED_STACK_ID + 1; 497 498 /** Last static stack stack ID. */ 499 public static final int LAST_STATIC_STACK_ID = PINNED_STACK_ID; 500 501 /** Start of ID range used by stacks that are created dynamically. */ 502 public static final int FIRST_DYNAMIC_STACK_ID = LAST_STATIC_STACK_ID + 1; 503 504 public static boolean isStaticStack(int stackId) { 505 return stackId >= FIRST_STATIC_STACK_ID && stackId <= LAST_STATIC_STACK_ID; 506 } 507 508 /** 509 * Returns true if the activities contained in the input stack display a shadow around 510 * their border. 511 */ 512 public static boolean hasWindowShadow(int stackId) { 513 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 514 } 515 516 /** 517 * Returns true if the activities contained in the input stack display a decor view. 518 */ 519 public static boolean hasWindowDecor(int stackId) { 520 return stackId == FREEFORM_WORKSPACE_STACK_ID; 521 } 522 523 /** 524 * Returns true if the tasks contained in the stack can be resized independently of the 525 * stack. 526 */ 527 public static boolean isTaskResizeAllowed(int stackId) { 528 return stackId == FREEFORM_WORKSPACE_STACK_ID; 529 } 530 531 /** Returns true if the task bounds should persist across power cycles. */ 532 public static boolean persistTaskBounds(int stackId) { 533 return stackId == FREEFORM_WORKSPACE_STACK_ID; 534 } 535 536 /** 537 * Returns true if dynamic stacks are allowed to be visible behind the input stack. 538 */ 539 public static boolean isDynamicStacksVisibleBehindAllowed(int stackId) { 540 return stackId == PINNED_STACK_ID; 541 } 542 543 /** 544 * Returns true if we try to maintain focus in the current stack when the top activity 545 * finishes. 546 */ 547 public static boolean keepFocusInStackIfPossible(int stackId) { 548 return stackId == FREEFORM_WORKSPACE_STACK_ID 549 || stackId == DOCKED_STACK_ID || stackId == PINNED_STACK_ID; 550 } 551 552 /** 553 * Returns true if Stack size is affected by the docked stack changing size. 554 */ 555 public static boolean isResizeableByDockedStack(int stackId) { 556 return isStaticStack(stackId) && 557 stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID; 558 } 559 560 /** 561 * Returns true if the size of tasks in the input stack are affected by the docked stack 562 * changing size. 563 */ 564 public static boolean isTaskResizeableByDockedStack(int stackId) { 565 return isStaticStack(stackId) && stackId != FREEFORM_WORKSPACE_STACK_ID 566 && stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID; 567 } 568 569 /** 570 * Returns true if the windows of tasks being moved to the target stack from the source 571 * stack should be replaced, meaning that window manager will keep the old window around 572 * until the new is ready. 573 */ 574 public static boolean replaceWindowsOnTaskMove(int sourceStackId, int targetStackId) { 575 return sourceStackId == FREEFORM_WORKSPACE_STACK_ID 576 || targetStackId == FREEFORM_WORKSPACE_STACK_ID; 577 } 578 579 /** 580 * Return whether a stackId is a stack containing floating windows. Floating windows 581 * are laid out differently as they are allowed to extend past the display bounds 582 * without overscan insets. 583 */ 584 public static boolean tasksAreFloating(int stackId) { 585 return stackId == FREEFORM_WORKSPACE_STACK_ID 586 || stackId == PINNED_STACK_ID; 587 } 588 589 /** 590 * Returns true if animation specs should be constructed for app transition that moves 591 * the task to the specified stack. 592 */ 593 public static boolean useAnimationSpecForAppTransition(int stackId) { 594 595 // TODO: INVALID_STACK_ID is also animated because we don't persist stack id's across 596 // reboots. 597 return stackId == FREEFORM_WORKSPACE_STACK_ID 598 || stackId == FULLSCREEN_WORKSPACE_STACK_ID || stackId == DOCKED_STACK_ID 599 || stackId == INVALID_STACK_ID; 600 } 601 602 /** Returns true if the windows in the stack can receive input keys. */ 603 public static boolean canReceiveKeys(int stackId) { 604 return stackId != PINNED_STACK_ID; 605 } 606 607 /** 608 * Returns true if the stack can be visible above lockscreen. 609 */ 610 public static boolean isAllowedOverLockscreen(int stackId) { 611 return stackId == HOME_STACK_ID || stackId == FULLSCREEN_WORKSPACE_STACK_ID; 612 } 613 614 public static boolean isAlwaysOnTop(int stackId) { 615 return stackId == PINNED_STACK_ID; 616 } 617 618 /** 619 * Returns true if the top task in the task is allowed to return home when finished and 620 * there are other tasks in the stack. 621 */ 622 public static boolean allowTopTaskToReturnHome(int stackId) { 623 return stackId != PINNED_STACK_ID; 624 } 625 626 /** 627 * Returns true if the stack should be resized to match the bounds specified by 628 * {@link ActivityOptions#setLaunchBounds} when launching an activity into the stack. 629 */ 630 public static boolean resizeStackWithLaunchBounds(int stackId) { 631 return stackId == PINNED_STACK_ID; 632 } 633 634 /** 635 * Returns true if any visible windows belonging to apps in this stack should be kept on 636 * screen when the app is killed due to something like the low memory killer. 637 */ 638 public static boolean keepVisibleDeadAppWindowOnScreen(int stackId) { 639 return stackId != PINNED_STACK_ID; 640 } 641 642 /** 643 * Returns true if the backdrop on the client side should match the frame of the window. 644 * Returns false, if the backdrop should be fullscreen. 645 */ 646 public static boolean useWindowFrameForBackdrop(int stackId) { 647 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 648 } 649 650 /** 651 * Returns true if a window from the specified stack with {@param stackId} are normally 652 * fullscreen, i. e. they can become the top opaque fullscreen window, meaning that it 653 * controls system bars, lockscreen occluded/dismissing state, screen rotation animation, 654 * etc. 655 */ 656 public static boolean normallyFullscreenWindows(int stackId) { 657 return stackId != PINNED_STACK_ID && stackId != FREEFORM_WORKSPACE_STACK_ID 658 && stackId != DOCKED_STACK_ID; 659 } 660 661 /** 662 * Returns true if the input stack id should only be present on a device that supports 663 * multi-window mode. 664 * @see android.app.ActivityManager#supportsMultiWindow 665 */ 666 public static boolean isMultiWindowStack(int stackId) { 667 return isStaticStack(stackId) || stackId == PINNED_STACK_ID 668 || stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == DOCKED_STACK_ID; 669 } 670 } 671 672 /** 673 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 674 * specifies the position of the created docked stack at the top half of the screen if 675 * in portrait mode or at the left half of the screen if in landscape mode. 676 * @hide 677 */ 678 public static final int DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT = 0; 679 680 /** 681 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 682 * specifies the position of the created docked stack at the bottom half of the screen if 683 * in portrait mode or at the right half of the screen if in landscape mode. 684 * @hide 685 */ 686 public static final int DOCKED_STACK_CREATE_MODE_BOTTOM_OR_RIGHT = 1; 687 688 /** 689 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 690 * that the resize doesn't need to preserve the window, and can be skipped if bounds 691 * is unchanged. This mode is used by window manager in most cases. 692 * @hide 693 */ 694 public static final int RESIZE_MODE_SYSTEM = 0; 695 696 /** 697 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 698 * that the resize should preserve the window if possible. 699 * @hide 700 */ 701 public static final int RESIZE_MODE_PRESERVE_WINDOW = (0x1 << 0); 702 703 /** 704 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 705 * that the resize should be performed even if the bounds appears unchanged. 706 * @hide 707 */ 708 public static final int RESIZE_MODE_FORCED = (0x1 << 1); 709 710 /** 711 * Input parameter to {@link android.app.IActivityManager#resizeTask} used by window 712 * manager during a screen rotation. 713 * @hide 714 */ 715 public static final int RESIZE_MODE_SYSTEM_SCREEN_ROTATION = RESIZE_MODE_PRESERVE_WINDOW; 716 717 /** 718 * Input parameter to {@link android.app.IActivityManager#resizeTask} used when the 719 * resize is due to a drag action. 720 * @hide 721 */ 722 public static final int RESIZE_MODE_USER = RESIZE_MODE_PRESERVE_WINDOW; 723 724 /** 725 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 726 * that the resize should preserve the window if possible, and should not be skipped 727 * even if the bounds is unchanged. Usually used to force a resizing when a drag action 728 * is ending. 729 * @hide 730 */ 731 public static final int RESIZE_MODE_USER_FORCED = 732 RESIZE_MODE_PRESERVE_WINDOW | RESIZE_MODE_FORCED; 733 734 /** @hide */ 735 public int getFrontActivityScreenCompatMode() { 736 try { 737 return ActivityManagerNative.getDefault().getFrontActivityScreenCompatMode(); 738 } catch (RemoteException e) { 739 throw e.rethrowFromSystemServer(); 740 } 741 } 742 743 /** @hide */ 744 public void setFrontActivityScreenCompatMode(int mode) { 745 try { 746 ActivityManagerNative.getDefault().setFrontActivityScreenCompatMode(mode); 747 } catch (RemoteException e) { 748 throw e.rethrowFromSystemServer(); 749 } 750 } 751 752 /** @hide */ 753 public int getPackageScreenCompatMode(String packageName) { 754 try { 755 return ActivityManagerNative.getDefault().getPackageScreenCompatMode(packageName); 756 } catch (RemoteException e) { 757 throw e.rethrowFromSystemServer(); 758 } 759 } 760 761 /** @hide */ 762 public void setPackageScreenCompatMode(String packageName, int mode) { 763 try { 764 ActivityManagerNative.getDefault().setPackageScreenCompatMode(packageName, mode); 765 } catch (RemoteException e) { 766 throw e.rethrowFromSystemServer(); 767 } 768 } 769 770 /** @hide */ 771 public boolean getPackageAskScreenCompat(String packageName) { 772 try { 773 return ActivityManagerNative.getDefault().getPackageAskScreenCompat(packageName); 774 } catch (RemoteException e) { 775 throw e.rethrowFromSystemServer(); 776 } 777 } 778 779 /** @hide */ 780 public void setPackageAskScreenCompat(String packageName, boolean ask) { 781 try { 782 ActivityManagerNative.getDefault().setPackageAskScreenCompat(packageName, ask); 783 } catch (RemoteException e) { 784 throw e.rethrowFromSystemServer(); 785 } 786 } 787 788 /** 789 * Return the approximate per-application memory class of the current 790 * device. This gives you an idea of how hard a memory limit you should 791 * impose on your application to let the overall system work best. The 792 * returned value is in megabytes; the baseline Android memory class is 793 * 16 (which happens to be the Java heap limit of those devices); some 794 * device with more memory may return 24 or even higher numbers. 795 */ 796 public int getMemoryClass() { 797 return staticGetMemoryClass(); 798 } 799 800 /** @hide */ 801 static public int staticGetMemoryClass() { 802 // Really brain dead right now -- just take this from the configured 803 // vm heap size, and assume it is in megabytes and thus ends with "m". 804 String vmHeapSize = SystemProperties.get("dalvik.vm.heapgrowthlimit", ""); 805 if (vmHeapSize != null && !"".equals(vmHeapSize)) { 806 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1)); 807 } 808 return staticGetLargeMemoryClass(); 809 } 810 811 /** 812 * Return the approximate per-application memory class of the current 813 * device when an application is running with a large heap. This is the 814 * space available for memory-intensive applications; most applications 815 * should not need this amount of memory, and should instead stay with the 816 * {@link #getMemoryClass()} limit. The returned value is in megabytes. 817 * This may be the same size as {@link #getMemoryClass()} on memory 818 * constrained devices, or it may be significantly larger on devices with 819 * a large amount of available RAM. 820 * 821 * <p>The is the size of the application's Dalvik heap if it has 822 * specified <code>android:largeHeap="true"</code> in its manifest. 823 */ 824 public int getLargeMemoryClass() { 825 return staticGetLargeMemoryClass(); 826 } 827 828 /** @hide */ 829 static public int staticGetLargeMemoryClass() { 830 // Really brain dead right now -- just take this from the configured 831 // vm heap size, and assume it is in megabytes and thus ends with "m". 832 String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m"); 833 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1)); 834 } 835 836 /** 837 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 838 * is ultimately up to the device configuration, but currently it generally means 839 * something in the class of a 512MB device with about a 800x480 or less screen. 840 * This is mostly intended to be used by apps to determine whether they should turn 841 * off certain features that require more RAM. 842 */ 843 public boolean isLowRamDevice() { 844 return isLowRamDeviceStatic(); 845 } 846 847 /** @hide */ 848 public static boolean isLowRamDeviceStatic() { 849 return "true".equals(SystemProperties.get("ro.config.low_ram", "false")); 850 } 851 852 /** 853 * Used by persistent processes to determine if they are running on a 854 * higher-end device so should be okay using hardware drawing acceleration 855 * (which tends to consume a lot more RAM). 856 * @hide 857 */ 858 static public boolean isHighEndGfx() { 859 return !isLowRamDeviceStatic() && 860 !Resources.getSystem().getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 861 } 862 863 /** 864 * Return the maximum number of recents entries that we will maintain and show. 865 * @hide 866 */ 867 static public int getMaxRecentTasksStatic() { 868 if (gMaxRecentTasks < 0) { 869 return gMaxRecentTasks = isLowRamDeviceStatic() ? 50 : 100; 870 } 871 return gMaxRecentTasks; 872 } 873 874 /** 875 * Return the default limit on the number of recents that an app can make. 876 * @hide 877 */ 878 static public int getDefaultAppRecentsLimitStatic() { 879 return getMaxRecentTasksStatic() / 6; 880 } 881 882 /** 883 * Return the maximum limit on the number of recents that an app can make. 884 * @hide 885 */ 886 static public int getMaxAppRecentsLimitStatic() { 887 return getMaxRecentTasksStatic() / 2; 888 } 889 890 /** 891 * Returns true if the system supports at least one form of multi-window. 892 * E.g. freeform, split-screen, picture-in-picture. 893 * @hide 894 */ 895 static public boolean supportsMultiWindow() { 896 return !isLowRamDeviceStatic() 897 && Resources.getSystem().getBoolean( 898 com.android.internal.R.bool.config_supportsMultiWindow); 899 } 900 901 /** 902 * Information you can set and retrieve about the current activity within the recent task list. 903 */ 904 public static class TaskDescription implements Parcelable { 905 /** @hide */ 906 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 907 private static final String ATTR_TASKDESCRIPTIONLABEL = 908 ATTR_TASKDESCRIPTION_PREFIX + "label"; 909 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 910 ATTR_TASKDESCRIPTION_PREFIX + "color"; 911 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 912 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 913 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 914 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 915 916 private String mLabel; 917 private Bitmap mIcon; 918 private String mIconFilename; 919 private int mColorPrimary; 920 private int mColorBackground; 921 922 /** 923 * Creates the TaskDescription to the specified values. 924 * 925 * @param label A label and description of the current state of this task. 926 * @param icon An icon that represents the current state of this task. 927 * @param colorPrimary A color to override the theme's primary color. This color must be 928 * opaque. 929 */ 930 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 931 this(label, icon, null, colorPrimary, 0); 932 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 933 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 934 } 935 } 936 937 /** 938 * Creates the TaskDescription to the specified values. 939 * 940 * @param label A label and description of the current state of this activity. 941 * @param icon An icon that represents the current state of this activity. 942 */ 943 public TaskDescription(String label, Bitmap icon) { 944 this(label, icon, null, 0, 0); 945 } 946 947 /** 948 * Creates the TaskDescription to the specified values. 949 * 950 * @param label A label and description of the current state of this activity. 951 */ 952 public TaskDescription(String label) { 953 this(label, null, null, 0, 0); 954 } 955 956 /** 957 * Creates an empty TaskDescription. 958 */ 959 public TaskDescription() { 960 this(null, null, null, 0, 0); 961 } 962 963 /** @hide */ 964 public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary, 965 int colorBackground) { 966 mLabel = label; 967 mIcon = icon; 968 mIconFilename = iconFilename; 969 mColorPrimary = colorPrimary; 970 mColorBackground = colorBackground; 971 } 972 973 /** 974 * Creates a copy of another TaskDescription. 975 */ 976 public TaskDescription(TaskDescription td) { 977 copyFrom(td); 978 } 979 980 /** 981 * Copies this the values from another TaskDescription. 982 * @hide 983 */ 984 public void copyFrom(TaskDescription other) { 985 mLabel = other.mLabel; 986 mIcon = other.mIcon; 987 mIconFilename = other.mIconFilename; 988 mColorPrimary = other.mColorPrimary; 989 mColorBackground = other.mColorBackground; 990 } 991 992 private TaskDescription(Parcel source) { 993 readFromParcel(source); 994 } 995 996 /** 997 * Sets the label for this task description. 998 * @hide 999 */ 1000 public void setLabel(String label) { 1001 mLabel = label; 1002 } 1003 1004 /** 1005 * Sets the primary color for this task description. 1006 * @hide 1007 */ 1008 public void setPrimaryColor(int primaryColor) { 1009 // Ensure that the given color is valid 1010 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1011 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1012 } 1013 mColorPrimary = primaryColor; 1014 } 1015 1016 /** 1017 * Sets the background color for this task description. 1018 * @hide 1019 */ 1020 public void setBackgroundColor(int backgroundColor) { 1021 // Ensure that the given color is valid 1022 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1023 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1024 } 1025 mColorBackground = backgroundColor; 1026 } 1027 1028 /** 1029 * Sets the icon for this task description. 1030 * @hide 1031 */ 1032 public void setIcon(Bitmap icon) { 1033 mIcon = icon; 1034 } 1035 1036 /** 1037 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1038 * bitmap. 1039 * @hide 1040 */ 1041 public void setIconFilename(String iconFilename) { 1042 mIconFilename = iconFilename; 1043 mIcon = null; 1044 } 1045 1046 /** 1047 * @return The label and description of the current state of this task. 1048 */ 1049 public String getLabel() { 1050 return mLabel; 1051 } 1052 1053 /** 1054 * @return The icon that represents the current state of this task. 1055 */ 1056 public Bitmap getIcon() { 1057 if (mIcon != null) { 1058 return mIcon; 1059 } 1060 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1061 } 1062 1063 /** @hide */ 1064 public String getIconFilename() { 1065 return mIconFilename; 1066 } 1067 1068 /** @hide */ 1069 public Bitmap getInMemoryIcon() { 1070 return mIcon; 1071 } 1072 1073 /** @hide */ 1074 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1075 if (iconFilename != null) { 1076 try { 1077 return ActivityManagerNative.getDefault().getTaskDescriptionIcon(iconFilename, 1078 userId); 1079 } catch (RemoteException e) { 1080 throw e.rethrowFromSystemServer(); 1081 } 1082 } 1083 return null; 1084 } 1085 1086 /** 1087 * @return The color override on the theme's primary color. 1088 */ 1089 public int getPrimaryColor() { 1090 return mColorPrimary; 1091 } 1092 1093 /** 1094 * @return The background color. 1095 * @hide 1096 */ 1097 public int getBackgroundColor() { 1098 return mColorBackground; 1099 } 1100 1101 /** @hide */ 1102 public void saveToXml(XmlSerializer out) throws IOException { 1103 if (mLabel != null) { 1104 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1105 } 1106 if (mColorPrimary != 0) { 1107 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1108 Integer.toHexString(mColorPrimary)); 1109 } 1110 if (mColorBackground != 0) { 1111 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1112 Integer.toHexString(mColorBackground)); 1113 } 1114 if (mIconFilename != null) { 1115 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 1116 } 1117 } 1118 1119 /** @hide */ 1120 public void restoreFromXml(String attrName, String attrValue) { 1121 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1122 setLabel(attrValue); 1123 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1124 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1125 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1126 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1127 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 1128 setIconFilename(attrValue); 1129 } 1130 } 1131 1132 @Override 1133 public int describeContents() { 1134 return 0; 1135 } 1136 1137 @Override 1138 public void writeToParcel(Parcel dest, int flags) { 1139 if (mLabel == null) { 1140 dest.writeInt(0); 1141 } else { 1142 dest.writeInt(1); 1143 dest.writeString(mLabel); 1144 } 1145 if (mIcon == null) { 1146 dest.writeInt(0); 1147 } else { 1148 dest.writeInt(1); 1149 mIcon.writeToParcel(dest, 0); 1150 } 1151 dest.writeInt(mColorPrimary); 1152 dest.writeInt(mColorBackground); 1153 if (mIconFilename == null) { 1154 dest.writeInt(0); 1155 } else { 1156 dest.writeInt(1); 1157 dest.writeString(mIconFilename); 1158 } 1159 } 1160 1161 public void readFromParcel(Parcel source) { 1162 mLabel = source.readInt() > 0 ? source.readString() : null; 1163 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1164 mColorPrimary = source.readInt(); 1165 mColorBackground = source.readInt(); 1166 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1167 } 1168 1169 public static final Creator<TaskDescription> CREATOR 1170 = new Creator<TaskDescription>() { 1171 public TaskDescription createFromParcel(Parcel source) { 1172 return new TaskDescription(source); 1173 } 1174 public TaskDescription[] newArray(int size) { 1175 return new TaskDescription[size]; 1176 } 1177 }; 1178 1179 @Override 1180 public String toString() { 1181 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1182 " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary + 1183 " colorBackground: " + mColorBackground; 1184 } 1185 } 1186 1187 /** 1188 * Information you can retrieve about tasks that the user has most recently 1189 * started or visited. 1190 */ 1191 public static class RecentTaskInfo implements Parcelable { 1192 /** 1193 * If this task is currently running, this is the identifier for it. 1194 * If it is not running, this will be -1. 1195 */ 1196 public int id; 1197 1198 /** 1199 * The true identifier of this task, valid even if it is not running. 1200 */ 1201 public int persistentId; 1202 1203 /** 1204 * The original Intent used to launch the task. You can use this 1205 * Intent to re-launch the task (if it is no longer running) or bring 1206 * the current task to the front. 1207 */ 1208 public Intent baseIntent; 1209 1210 /** 1211 * If this task was started from an alias, this is the actual 1212 * activity component that was initially started; the component of 1213 * the baseIntent in this case is the name of the actual activity 1214 * implementation that the alias referred to. Otherwise, this is null. 1215 */ 1216 public ComponentName origActivity; 1217 1218 /** 1219 * The actual activity component that started the task. 1220 * @hide 1221 */ 1222 @Nullable 1223 public ComponentName realActivity; 1224 1225 /** 1226 * Description of the task's last state. 1227 */ 1228 public CharSequence description; 1229 1230 /** 1231 * The id of the ActivityStack this Task was on most recently. 1232 * @hide 1233 */ 1234 public int stackId; 1235 1236 /** 1237 * The id of the user the task was running as. 1238 * @hide 1239 */ 1240 public int userId; 1241 1242 /** 1243 * The first time this task was active. 1244 * @hide 1245 */ 1246 public long firstActiveTime; 1247 1248 /** 1249 * The last time this task was active. 1250 * @hide 1251 */ 1252 public long lastActiveTime; 1253 1254 /** 1255 * The recent activity values for the highest activity in the stack to have set the values. 1256 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1257 */ 1258 public TaskDescription taskDescription; 1259 1260 /** 1261 * Task affiliation for grouping with other tasks. 1262 */ 1263 public int affiliatedTaskId; 1264 1265 /** 1266 * Task affiliation color of the source task with the affiliated task id. 1267 * 1268 * @hide 1269 */ 1270 public int affiliatedTaskColor; 1271 1272 /** 1273 * The component launched as the first activity in the task. 1274 * This can be considered the "application" of this task. 1275 */ 1276 public ComponentName baseActivity; 1277 1278 /** 1279 * The activity component at the top of the history stack of the task. 1280 * This is what the user is currently doing. 1281 */ 1282 public ComponentName topActivity; 1283 1284 /** 1285 * Number of activities in this task. 1286 */ 1287 public int numActivities; 1288 1289 /** 1290 * The bounds of the task. 1291 * @hide 1292 */ 1293 public Rect bounds; 1294 1295 /** 1296 * True if the task can go in the docked stack. 1297 * @hide 1298 */ 1299 public boolean isDockable; 1300 1301 public RecentTaskInfo() { 1302 } 1303 1304 @Override 1305 public int describeContents() { 1306 return 0; 1307 } 1308 1309 @Override 1310 public void writeToParcel(Parcel dest, int flags) { 1311 dest.writeInt(id); 1312 dest.writeInt(persistentId); 1313 if (baseIntent != null) { 1314 dest.writeInt(1); 1315 baseIntent.writeToParcel(dest, 0); 1316 } else { 1317 dest.writeInt(0); 1318 } 1319 ComponentName.writeToParcel(origActivity, dest); 1320 ComponentName.writeToParcel(realActivity, dest); 1321 TextUtils.writeToParcel(description, dest, 1322 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1323 if (taskDescription != null) { 1324 dest.writeInt(1); 1325 taskDescription.writeToParcel(dest, 0); 1326 } else { 1327 dest.writeInt(0); 1328 } 1329 dest.writeInt(stackId); 1330 dest.writeInt(userId); 1331 dest.writeLong(firstActiveTime); 1332 dest.writeLong(lastActiveTime); 1333 dest.writeInt(affiliatedTaskId); 1334 dest.writeInt(affiliatedTaskColor); 1335 ComponentName.writeToParcel(baseActivity, dest); 1336 ComponentName.writeToParcel(topActivity, dest); 1337 dest.writeInt(numActivities); 1338 if (bounds != null) { 1339 dest.writeInt(1); 1340 bounds.writeToParcel(dest, 0); 1341 } else { 1342 dest.writeInt(0); 1343 } 1344 dest.writeInt(isDockable ? 1 : 0); 1345 } 1346 1347 public void readFromParcel(Parcel source) { 1348 id = source.readInt(); 1349 persistentId = source.readInt(); 1350 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1351 origActivity = ComponentName.readFromParcel(source); 1352 realActivity = ComponentName.readFromParcel(source); 1353 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1354 taskDescription = source.readInt() > 0 ? 1355 TaskDescription.CREATOR.createFromParcel(source) : null; 1356 stackId = source.readInt(); 1357 userId = source.readInt(); 1358 firstActiveTime = source.readLong(); 1359 lastActiveTime = source.readLong(); 1360 affiliatedTaskId = source.readInt(); 1361 affiliatedTaskColor = source.readInt(); 1362 baseActivity = ComponentName.readFromParcel(source); 1363 topActivity = ComponentName.readFromParcel(source); 1364 numActivities = source.readInt(); 1365 bounds = source.readInt() > 0 ? 1366 Rect.CREATOR.createFromParcel(source) : null; 1367 isDockable = source.readInt() == 1; 1368 } 1369 1370 public static final Creator<RecentTaskInfo> CREATOR 1371 = new Creator<RecentTaskInfo>() { 1372 public RecentTaskInfo createFromParcel(Parcel source) { 1373 return new RecentTaskInfo(source); 1374 } 1375 public RecentTaskInfo[] newArray(int size) { 1376 return new RecentTaskInfo[size]; 1377 } 1378 }; 1379 1380 private RecentTaskInfo(Parcel source) { 1381 readFromParcel(source); 1382 } 1383 } 1384 1385 /** 1386 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1387 * that have set their 1388 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1389 */ 1390 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1391 1392 /** 1393 * Provides a list that does not contain any 1394 * recent tasks that currently are not available to the user. 1395 */ 1396 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1397 1398 /** 1399 * Provides a list that contains recent tasks for all 1400 * profiles of a user. 1401 * @hide 1402 */ 1403 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1404 1405 /** 1406 * Ignores all tasks that are on the home stack. 1407 * @hide 1408 */ 1409 public static final int RECENT_IGNORE_HOME_STACK_TASKS = 0x0008; 1410 1411 /** 1412 * Ignores all tasks that are on the docked stack. 1413 * @hide 1414 */ 1415 public static final int RECENT_INGORE_DOCKED_STACK_TASKS = 0x0010; 1416 1417 /** 1418 * Ignores all tasks that are on the pinned stack. 1419 * @hide 1420 */ 1421 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1422 1423 /** 1424 * <p></p>Return a list of the tasks that the user has recently launched, with 1425 * the most recent being first and older ones after in order. 1426 * 1427 * <p><b>Note: this method is only intended for debugging and presenting 1428 * task management user interfaces</b>. This should never be used for 1429 * core logic in an application, such as deciding between different 1430 * behaviors based on the information found here. Such uses are 1431 * <em>not</em> supported, and will likely break in the future. For 1432 * example, if multiple applications can be actively running at the 1433 * same time, assumptions made about the meaning of the data here for 1434 * purposes of control flow will be incorrect.</p> 1435 * 1436 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1437 * no longer available to third party applications: the introduction of 1438 * document-centric recents means 1439 * it can leak personal information to the caller. For backwards compatibility, 1440 * it will still return a small subset of its data: at least the caller's 1441 * own tasks (though see {@link #getAppTasks()} for the correct supported 1442 * way to retrieve that information), and possibly some other tasks 1443 * such as home that are known to not be sensitive. 1444 * 1445 * @param maxNum The maximum number of entries to return in the list. The 1446 * actual number returned may be smaller, depending on how many tasks the 1447 * user has started and the maximum number the system can remember. 1448 * @param flags Information about what to return. May be any combination 1449 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1450 * 1451 * @return Returns a list of RecentTaskInfo records describing each of 1452 * the recent tasks. 1453 */ 1454 @Deprecated 1455 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1456 throws SecurityException { 1457 try { 1458 return ActivityManagerNative.getDefault().getRecentTasks(maxNum, 1459 flags, UserHandle.myUserId()); 1460 } catch (RemoteException e) { 1461 throw e.rethrowFromSystemServer(); 1462 } 1463 } 1464 1465 /** 1466 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1467 * specific user. It requires holding 1468 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1469 * @param maxNum The maximum number of entries to return in the list. The 1470 * actual number returned may be smaller, depending on how many tasks the 1471 * user has started and the maximum number the system can remember. 1472 * @param flags Information about what to return. May be any combination 1473 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1474 * 1475 * @return Returns a list of RecentTaskInfo records describing each of 1476 * the recent tasks. Most recently activated tasks go first. 1477 * 1478 * @hide 1479 */ 1480 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1481 throws SecurityException { 1482 try { 1483 return ActivityManagerNative.getDefault().getRecentTasks(maxNum, 1484 flags, userId); 1485 } catch (RemoteException e) { 1486 throw e.rethrowFromSystemServer(); 1487 } 1488 } 1489 1490 /** 1491 * Information you can retrieve about a particular task that is currently 1492 * "running" in the system. Note that a running task does not mean the 1493 * given task actually has a process it is actively running in; it simply 1494 * means that the user has gone to it and never closed it, but currently 1495 * the system may have killed its process and is only holding on to its 1496 * last state in order to restart it when the user returns. 1497 */ 1498 public static class RunningTaskInfo implements Parcelable { 1499 /** 1500 * A unique identifier for this task. 1501 */ 1502 public int id; 1503 1504 /** 1505 * The stack that currently contains this task. 1506 * @hide 1507 */ 1508 public int stackId; 1509 1510 /** 1511 * The component launched as the first activity in the task. This can 1512 * be considered the "application" of this task. 1513 */ 1514 public ComponentName baseActivity; 1515 1516 /** 1517 * The activity component at the top of the history stack of the task. 1518 * This is what the user is currently doing. 1519 */ 1520 public ComponentName topActivity; 1521 1522 /** 1523 * Thumbnail representation of the task's current state. Currently 1524 * always null. 1525 */ 1526 public Bitmap thumbnail; 1527 1528 /** 1529 * Description of the task's current state. 1530 */ 1531 public CharSequence description; 1532 1533 /** 1534 * Number of activities in this task. 1535 */ 1536 public int numActivities; 1537 1538 /** 1539 * Number of activities that are currently running (not stopped 1540 * and persisted) in this task. 1541 */ 1542 public int numRunning; 1543 1544 /** 1545 * Last time task was run. For sorting. 1546 * @hide 1547 */ 1548 public long lastActiveTime; 1549 1550 /** 1551 * True if the task can go in the docked stack. 1552 * @hide 1553 */ 1554 public boolean isDockable; 1555 1556 public RunningTaskInfo() { 1557 } 1558 1559 public int describeContents() { 1560 return 0; 1561 } 1562 1563 public void writeToParcel(Parcel dest, int flags) { 1564 dest.writeInt(id); 1565 dest.writeInt(stackId); 1566 ComponentName.writeToParcel(baseActivity, dest); 1567 ComponentName.writeToParcel(topActivity, dest); 1568 if (thumbnail != null) { 1569 dest.writeInt(1); 1570 thumbnail.writeToParcel(dest, 0); 1571 } else { 1572 dest.writeInt(0); 1573 } 1574 TextUtils.writeToParcel(description, dest, 1575 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1576 dest.writeInt(numActivities); 1577 dest.writeInt(numRunning); 1578 dest.writeInt(isDockable ? 1 : 0); 1579 } 1580 1581 public void readFromParcel(Parcel source) { 1582 id = source.readInt(); 1583 stackId = source.readInt(); 1584 baseActivity = ComponentName.readFromParcel(source); 1585 topActivity = ComponentName.readFromParcel(source); 1586 if (source.readInt() != 0) { 1587 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1588 } else { 1589 thumbnail = null; 1590 } 1591 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1592 numActivities = source.readInt(); 1593 numRunning = source.readInt(); 1594 isDockable = source.readInt() != 0; 1595 } 1596 1597 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1598 public RunningTaskInfo createFromParcel(Parcel source) { 1599 return new RunningTaskInfo(source); 1600 } 1601 public RunningTaskInfo[] newArray(int size) { 1602 return new RunningTaskInfo[size]; 1603 } 1604 }; 1605 1606 private RunningTaskInfo(Parcel source) { 1607 readFromParcel(source); 1608 } 1609 } 1610 1611 /** 1612 * Get the list of tasks associated with the calling application. 1613 * 1614 * @return The list of tasks associated with the application making this call. 1615 * @throws SecurityException 1616 */ 1617 public List<ActivityManager.AppTask> getAppTasks() { 1618 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1619 List<IAppTask> appTasks; 1620 try { 1621 appTasks = ActivityManagerNative.getDefault().getAppTasks(mContext.getPackageName()); 1622 } catch (RemoteException e) { 1623 throw e.rethrowFromSystemServer(); 1624 } 1625 int numAppTasks = appTasks.size(); 1626 for (int i = 0; i < numAppTasks; i++) { 1627 tasks.add(new AppTask(appTasks.get(i))); 1628 } 1629 return tasks; 1630 } 1631 1632 /** 1633 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1634 * with {@link #addAppTask}. 1635 */ 1636 public Size getAppTaskThumbnailSize() { 1637 synchronized (this) { 1638 ensureAppTaskThumbnailSizeLocked(); 1639 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1640 } 1641 } 1642 1643 private void ensureAppTaskThumbnailSizeLocked() { 1644 if (mAppTaskThumbnailSize == null) { 1645 try { 1646 mAppTaskThumbnailSize = ActivityManagerNative.getDefault().getAppTaskThumbnailSize(); 1647 } catch (RemoteException e) { 1648 throw e.rethrowFromSystemServer(); 1649 } 1650 } 1651 } 1652 1653 /** 1654 * Add a new {@link AppTask} for the calling application. This will create a new 1655 * recents entry that is added to the <b>end</b> of all existing recents. 1656 * 1657 * @param activity The activity that is adding the entry. This is used to help determine 1658 * the context that the new recents entry will be in. 1659 * @param intent The Intent that describes the recents entry. This is the same Intent that 1660 * you would have used to launch the activity for it. In generally you will want to set 1661 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1662 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1663 * entry will exist without an activity, so it doesn't make sense to not retain it when 1664 * its activity disappears. The given Intent here also must have an explicit ComponentName 1665 * set on it. 1666 * @param description Optional additional description information. 1667 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1668 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1669 * recreated in your process, probably in a way you don't like, before the recents entry 1670 * is added. 1671 * 1672 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 1673 * most likely cause of failure is that there is no more room for more tasks for your app. 1674 */ 1675 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 1676 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 1677 Point size; 1678 synchronized (this) { 1679 ensureAppTaskThumbnailSizeLocked(); 1680 size = mAppTaskThumbnailSize; 1681 } 1682 final int tw = thumbnail.getWidth(); 1683 final int th = thumbnail.getHeight(); 1684 if (tw != size.x || th != size.y) { 1685 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 1686 1687 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 1688 float scale; 1689 float dx = 0, dy = 0; 1690 if (tw * size.x > size.y * th) { 1691 scale = (float) size.x / (float) th; 1692 dx = (size.y - tw * scale) * 0.5f; 1693 } else { 1694 scale = (float) size.y / (float) tw; 1695 dy = (size.x - th * scale) * 0.5f; 1696 } 1697 Matrix matrix = new Matrix(); 1698 matrix.setScale(scale, scale); 1699 matrix.postTranslate((int) (dx + 0.5f), 0); 1700 1701 Canvas canvas = new Canvas(bm); 1702 canvas.drawBitmap(thumbnail, matrix, null); 1703 canvas.setBitmap(null); 1704 1705 thumbnail = bm; 1706 } 1707 if (description == null) { 1708 description = new TaskDescription(); 1709 } 1710 try { 1711 return ActivityManagerNative.getDefault().addAppTask(activity.getActivityToken(), 1712 intent, description, thumbnail); 1713 } catch (RemoteException e) { 1714 throw e.rethrowFromSystemServer(); 1715 } 1716 } 1717 1718 /** 1719 * Return a list of the tasks that are currently running, with 1720 * the most recent being first and older ones after in order. Note that 1721 * "running" does not mean any of the task's code is currently loaded or 1722 * activity -- the task may have been frozen by the system, so that it 1723 * can be restarted in its previous state when next brought to the 1724 * foreground. 1725 * 1726 * <p><b>Note: this method is only intended for debugging and presenting 1727 * task management user interfaces</b>. This should never be used for 1728 * core logic in an application, such as deciding between different 1729 * behaviors based on the information found here. Such uses are 1730 * <em>not</em> supported, and will likely break in the future. For 1731 * example, if multiple applications can be actively running at the 1732 * same time, assumptions made about the meaning of the data here for 1733 * purposes of control flow will be incorrect.</p> 1734 * 1735 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 1736 * is no longer available to third party 1737 * applications: the introduction of document-centric recents means 1738 * it can leak person information to the caller. For backwards compatibility, 1739 * it will still retu rn a small subset of its data: at least the caller's 1740 * own tasks, and possibly some other tasks 1741 * such as home that are known to not be sensitive. 1742 * 1743 * @param maxNum The maximum number of entries to return in the list. The 1744 * actual number returned may be smaller, depending on how many tasks the 1745 * user has started. 1746 * 1747 * @return Returns a list of RunningTaskInfo records describing each of 1748 * the running tasks. 1749 */ 1750 @Deprecated 1751 public List<RunningTaskInfo> getRunningTasks(int maxNum) 1752 throws SecurityException { 1753 try { 1754 return ActivityManagerNative.getDefault().getTasks(maxNum, 0); 1755 } catch (RemoteException e) { 1756 throw e.rethrowFromSystemServer(); 1757 } 1758 } 1759 1760 /** 1761 * Completely remove the given task. 1762 * 1763 * @param taskId Identifier of the task to be removed. 1764 * @return Returns true if the given task was found and removed. 1765 * 1766 * @hide 1767 */ 1768 public boolean removeTask(int taskId) throws SecurityException { 1769 try { 1770 return ActivityManagerNative.getDefault().removeTask(taskId); 1771 } catch (RemoteException e) { 1772 throw e.rethrowFromSystemServer(); 1773 } 1774 } 1775 1776 /** 1777 * Metadata related to the {@link TaskThumbnail}. 1778 * 1779 * @hide 1780 */ 1781 public static class TaskThumbnailInfo implements Parcelable { 1782 /** @hide */ 1783 public static final String ATTR_TASK_THUMBNAILINFO_PREFIX = "task_thumbnailinfo_"; 1784 private static final String ATTR_TASK_WIDTH = 1785 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_width"; 1786 private static final String ATTR_TASK_HEIGHT = 1787 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_height"; 1788 private static final String ATTR_SCREEN_ORIENTATION = 1789 ATTR_TASK_THUMBNAILINFO_PREFIX + "screen_orientation"; 1790 1791 public int taskWidth; 1792 public int taskHeight; 1793 public int screenOrientation; 1794 1795 public TaskThumbnailInfo() { 1796 // Do nothing 1797 } 1798 1799 private TaskThumbnailInfo(Parcel source) { 1800 readFromParcel(source); 1801 } 1802 1803 /** 1804 * Resets this info state to the initial state. 1805 * @hide 1806 */ 1807 public void reset() { 1808 taskWidth = 0; 1809 taskHeight = 0; 1810 screenOrientation = 0; 1811 } 1812 1813 /** @hide */ 1814 public void saveToXml(XmlSerializer out) throws IOException { 1815 out.attribute(null, ATTR_TASK_WIDTH, Integer.toString(taskWidth)); 1816 out.attribute(null, ATTR_TASK_HEIGHT, Integer.toString(taskHeight)); 1817 out.attribute(null, ATTR_SCREEN_ORIENTATION, Integer.toString(screenOrientation)); 1818 } 1819 1820 /** @hide */ 1821 public void restoreFromXml(String attrName, String attrValue) { 1822 if (ATTR_TASK_WIDTH.equals(attrName)) { 1823 taskWidth = Integer.parseInt(attrValue); 1824 } else if (ATTR_TASK_HEIGHT.equals(attrName)) { 1825 taskHeight = Integer.parseInt(attrValue); 1826 } else if (ATTR_SCREEN_ORIENTATION.equals(attrName)) { 1827 screenOrientation = Integer.parseInt(attrValue); 1828 } 1829 } 1830 1831 public int describeContents() { 1832 return 0; 1833 } 1834 1835 public void writeToParcel(Parcel dest, int flags) { 1836 dest.writeInt(taskWidth); 1837 dest.writeInt(taskHeight); 1838 dest.writeInt(screenOrientation); 1839 } 1840 1841 public void readFromParcel(Parcel source) { 1842 taskWidth = source.readInt(); 1843 taskHeight = source.readInt(); 1844 screenOrientation = source.readInt(); 1845 } 1846 1847 public static final Creator<TaskThumbnailInfo> CREATOR = new Creator<TaskThumbnailInfo>() { 1848 public TaskThumbnailInfo createFromParcel(Parcel source) { 1849 return new TaskThumbnailInfo(source); 1850 } 1851 public TaskThumbnailInfo[] newArray(int size) { 1852 return new TaskThumbnailInfo[size]; 1853 } 1854 }; 1855 } 1856 1857 /** @hide */ 1858 public static class TaskThumbnail implements Parcelable { 1859 public Bitmap mainThumbnail; 1860 public ParcelFileDescriptor thumbnailFileDescriptor; 1861 public TaskThumbnailInfo thumbnailInfo; 1862 1863 public TaskThumbnail() { 1864 } 1865 1866 private TaskThumbnail(Parcel source) { 1867 readFromParcel(source); 1868 } 1869 1870 public int describeContents() { 1871 if (thumbnailFileDescriptor != null) { 1872 return thumbnailFileDescriptor.describeContents(); 1873 } 1874 return 0; 1875 } 1876 1877 public void writeToParcel(Parcel dest, int flags) { 1878 if (mainThumbnail != null) { 1879 dest.writeInt(1); 1880 mainThumbnail.writeToParcel(dest, flags); 1881 } else { 1882 dest.writeInt(0); 1883 } 1884 if (thumbnailFileDescriptor != null) { 1885 dest.writeInt(1); 1886 thumbnailFileDescriptor.writeToParcel(dest, flags); 1887 } else { 1888 dest.writeInt(0); 1889 } 1890 if (thumbnailInfo != null) { 1891 dest.writeInt(1); 1892 thumbnailInfo.writeToParcel(dest, flags); 1893 } else { 1894 dest.writeInt(0); 1895 } 1896 } 1897 1898 public void readFromParcel(Parcel source) { 1899 if (source.readInt() != 0) { 1900 mainThumbnail = Bitmap.CREATOR.createFromParcel(source); 1901 } else { 1902 mainThumbnail = null; 1903 } 1904 if (source.readInt() != 0) { 1905 thumbnailFileDescriptor = ParcelFileDescriptor.CREATOR.createFromParcel(source); 1906 } else { 1907 thumbnailFileDescriptor = null; 1908 } 1909 if (source.readInt() != 0) { 1910 thumbnailInfo = TaskThumbnailInfo.CREATOR.createFromParcel(source); 1911 } else { 1912 thumbnailInfo = null; 1913 } 1914 } 1915 1916 public static final Creator<TaskThumbnail> CREATOR = new Creator<TaskThumbnail>() { 1917 public TaskThumbnail createFromParcel(Parcel source) { 1918 return new TaskThumbnail(source); 1919 } 1920 public TaskThumbnail[] newArray(int size) { 1921 return new TaskThumbnail[size]; 1922 } 1923 }; 1924 } 1925 1926 /** @hide */ 1927 public TaskThumbnail getTaskThumbnail(int id) throws SecurityException { 1928 try { 1929 return ActivityManagerNative.getDefault().getTaskThumbnail(id); 1930 } catch (RemoteException e) { 1931 throw e.rethrowFromSystemServer(); 1932 } 1933 } 1934 1935 /** @hide */ 1936 public boolean isInHomeStack(int taskId) { 1937 try { 1938 return ActivityManagerNative.getDefault().isInHomeStack(taskId); 1939 } catch (RemoteException e) { 1940 throw e.rethrowFromSystemServer(); 1941 } 1942 } 1943 1944 /** 1945 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 1946 * activity along with the task, so it is positioned immediately behind 1947 * the task. 1948 */ 1949 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 1950 1951 /** 1952 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 1953 * user-instigated action, so the current activity will not receive a 1954 * hint that the user is leaving. 1955 */ 1956 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 1957 1958 /** 1959 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 1960 * with a null options argument. 1961 * 1962 * @param taskId The identifier of the task to be moved, as found in 1963 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 1964 * @param flags Additional operational flags, 0 or more of 1965 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 1966 */ 1967 public void moveTaskToFront(int taskId, int flags) { 1968 moveTaskToFront(taskId, flags, null); 1969 } 1970 1971 /** 1972 * Ask that the task associated with a given task ID be moved to the 1973 * front of the stack, so it is now visible to the user. Requires that 1974 * the caller hold permission {@link android.Manifest.permission#REORDER_TASKS} 1975 * or a SecurityException will be thrown. 1976 * 1977 * @param taskId The identifier of the task to be moved, as found in 1978 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 1979 * @param flags Additional operational flags, 0 or more of 1980 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 1981 * @param options Additional options for the operation, either null or 1982 * as per {@link Context#startActivity(Intent, android.os.Bundle) 1983 * Context.startActivity(Intent, Bundle)}. 1984 */ 1985 public void moveTaskToFront(int taskId, int flags, Bundle options) { 1986 try { 1987 ActivityManagerNative.getDefault().moveTaskToFront(taskId, flags, options); 1988 } catch (RemoteException e) { 1989 throw e.rethrowFromSystemServer(); 1990 } 1991 } 1992 1993 /** 1994 * Information you can retrieve about a particular Service that is 1995 * currently running in the system. 1996 */ 1997 public static class RunningServiceInfo implements Parcelable { 1998 /** 1999 * The service component. 2000 */ 2001 public ComponentName service; 2002 2003 /** 2004 * If non-zero, this is the process the service is running in. 2005 */ 2006 public int pid; 2007 2008 /** 2009 * The UID that owns this service. 2010 */ 2011 public int uid; 2012 2013 /** 2014 * The name of the process this service runs in. 2015 */ 2016 public String process; 2017 2018 /** 2019 * Set to true if the service has asked to run as a foreground process. 2020 */ 2021 public boolean foreground; 2022 2023 /** 2024 * The time when the service was first made active, either by someone 2025 * starting or binding to it. This 2026 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2027 */ 2028 public long activeSince; 2029 2030 /** 2031 * Set to true if this service has been explicitly started. 2032 */ 2033 public boolean started; 2034 2035 /** 2036 * Number of clients connected to the service. 2037 */ 2038 public int clientCount; 2039 2040 /** 2041 * Number of times the service's process has crashed while the service 2042 * is running. 2043 */ 2044 public int crashCount; 2045 2046 /** 2047 * The time when there was last activity in the service (either 2048 * explicit requests to start it or clients binding to it). This 2049 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2050 */ 2051 public long lastActivityTime; 2052 2053 /** 2054 * If non-zero, this service is not currently running, but scheduled to 2055 * restart at the given time. 2056 */ 2057 public long restarting; 2058 2059 /** 2060 * Bit for {@link #flags}: set if this service has been 2061 * explicitly started. 2062 */ 2063 public static final int FLAG_STARTED = 1<<0; 2064 2065 /** 2066 * Bit for {@link #flags}: set if the service has asked to 2067 * run as a foreground process. 2068 */ 2069 public static final int FLAG_FOREGROUND = 1<<1; 2070 2071 /** 2072 * Bit for {@link #flags): set if the service is running in a 2073 * core system process. 2074 */ 2075 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2076 2077 /** 2078 * Bit for {@link #flags): set if the service is running in a 2079 * persistent process. 2080 */ 2081 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2082 2083 /** 2084 * Running flags. 2085 */ 2086 public int flags; 2087 2088 /** 2089 * For special services that are bound to by system code, this is 2090 * the package that holds the binding. 2091 */ 2092 public String clientPackage; 2093 2094 /** 2095 * For special services that are bound to by system code, this is 2096 * a string resource providing a user-visible label for who the 2097 * client is. 2098 */ 2099 public int clientLabel; 2100 2101 public RunningServiceInfo() { 2102 } 2103 2104 public int describeContents() { 2105 return 0; 2106 } 2107 2108 public void writeToParcel(Parcel dest, int flags) { 2109 ComponentName.writeToParcel(service, dest); 2110 dest.writeInt(pid); 2111 dest.writeInt(uid); 2112 dest.writeString(process); 2113 dest.writeInt(foreground ? 1 : 0); 2114 dest.writeLong(activeSince); 2115 dest.writeInt(started ? 1 : 0); 2116 dest.writeInt(clientCount); 2117 dest.writeInt(crashCount); 2118 dest.writeLong(lastActivityTime); 2119 dest.writeLong(restarting); 2120 dest.writeInt(this.flags); 2121 dest.writeString(clientPackage); 2122 dest.writeInt(clientLabel); 2123 } 2124 2125 public void readFromParcel(Parcel source) { 2126 service = ComponentName.readFromParcel(source); 2127 pid = source.readInt(); 2128 uid = source.readInt(); 2129 process = source.readString(); 2130 foreground = source.readInt() != 0; 2131 activeSince = source.readLong(); 2132 started = source.readInt() != 0; 2133 clientCount = source.readInt(); 2134 crashCount = source.readInt(); 2135 lastActivityTime = source.readLong(); 2136 restarting = source.readLong(); 2137 flags = source.readInt(); 2138 clientPackage = source.readString(); 2139 clientLabel = source.readInt(); 2140 } 2141 2142 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2143 public RunningServiceInfo createFromParcel(Parcel source) { 2144 return new RunningServiceInfo(source); 2145 } 2146 public RunningServiceInfo[] newArray(int size) { 2147 return new RunningServiceInfo[size]; 2148 } 2149 }; 2150 2151 private RunningServiceInfo(Parcel source) { 2152 readFromParcel(source); 2153 } 2154 } 2155 2156 /** 2157 * Return a list of the services that are currently running. 2158 * 2159 * <p><b>Note: this method is only intended for debugging or implementing 2160 * service management type user interfaces.</b></p> 2161 * 2162 * @param maxNum The maximum number of entries to return in the list. The 2163 * actual number returned may be smaller, depending on how many services 2164 * are running. 2165 * 2166 * @return Returns a list of RunningServiceInfo records describing each of 2167 * the running tasks. 2168 */ 2169 public List<RunningServiceInfo> getRunningServices(int maxNum) 2170 throws SecurityException { 2171 try { 2172 return ActivityManagerNative.getDefault() 2173 .getServices(maxNum, 0); 2174 } catch (RemoteException e) { 2175 throw e.rethrowFromSystemServer(); 2176 } 2177 } 2178 2179 /** 2180 * Returns a PendingIntent you can start to show a control panel for the 2181 * given running service. If the service does not have a control panel, 2182 * null is returned. 2183 */ 2184 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2185 throws SecurityException { 2186 try { 2187 return ActivityManagerNative.getDefault() 2188 .getRunningServiceControlPanel(service); 2189 } catch (RemoteException e) { 2190 throw e.rethrowFromSystemServer(); 2191 } 2192 } 2193 2194 /** 2195 * Information you can retrieve about the available memory through 2196 * {@link ActivityManager#getMemoryInfo}. 2197 */ 2198 public static class MemoryInfo implements Parcelable { 2199 /** 2200 * The available memory on the system. This number should not 2201 * be considered absolute: due to the nature of the kernel, a significant 2202 * portion of this memory is actually in use and needed for the overall 2203 * system to run well. 2204 */ 2205 public long availMem; 2206 2207 /** 2208 * The total memory accessible by the kernel. This is basically the 2209 * RAM size of the device, not including below-kernel fixed allocations 2210 * like DMA buffers, RAM for the baseband CPU, etc. 2211 */ 2212 public long totalMem; 2213 2214 /** 2215 * The threshold of {@link #availMem} at which we consider memory to be 2216 * low and start killing background services and other non-extraneous 2217 * processes. 2218 */ 2219 public long threshold; 2220 2221 /** 2222 * Set to true if the system considers itself to currently be in a low 2223 * memory situation. 2224 */ 2225 public boolean lowMemory; 2226 2227 /** @hide */ 2228 public long hiddenAppThreshold; 2229 /** @hide */ 2230 public long secondaryServerThreshold; 2231 /** @hide */ 2232 public long visibleAppThreshold; 2233 /** @hide */ 2234 public long foregroundAppThreshold; 2235 2236 public MemoryInfo() { 2237 } 2238 2239 public int describeContents() { 2240 return 0; 2241 } 2242 2243 public void writeToParcel(Parcel dest, int flags) { 2244 dest.writeLong(availMem); 2245 dest.writeLong(totalMem); 2246 dest.writeLong(threshold); 2247 dest.writeInt(lowMemory ? 1 : 0); 2248 dest.writeLong(hiddenAppThreshold); 2249 dest.writeLong(secondaryServerThreshold); 2250 dest.writeLong(visibleAppThreshold); 2251 dest.writeLong(foregroundAppThreshold); 2252 } 2253 2254 public void readFromParcel(Parcel source) { 2255 availMem = source.readLong(); 2256 totalMem = source.readLong(); 2257 threshold = source.readLong(); 2258 lowMemory = source.readInt() != 0; 2259 hiddenAppThreshold = source.readLong(); 2260 secondaryServerThreshold = source.readLong(); 2261 visibleAppThreshold = source.readLong(); 2262 foregroundAppThreshold = source.readLong(); 2263 } 2264 2265 public static final Creator<MemoryInfo> CREATOR 2266 = new Creator<MemoryInfo>() { 2267 public MemoryInfo createFromParcel(Parcel source) { 2268 return new MemoryInfo(source); 2269 } 2270 public MemoryInfo[] newArray(int size) { 2271 return new MemoryInfo[size]; 2272 } 2273 }; 2274 2275 private MemoryInfo(Parcel source) { 2276 readFromParcel(source); 2277 } 2278 } 2279 2280 /** 2281 * Return general information about the memory state of the system. This 2282 * can be used to help decide how to manage your own memory, though note 2283 * that polling is not recommended and 2284 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2285 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2286 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2287 * level of your process as needed, which gives a better hint for how to 2288 * manage its memory. 2289 */ 2290 public void getMemoryInfo(MemoryInfo outInfo) { 2291 try { 2292 ActivityManagerNative.getDefault().getMemoryInfo(outInfo); 2293 } catch (RemoteException e) { 2294 throw e.rethrowFromSystemServer(); 2295 } 2296 } 2297 2298 /** 2299 * Information you can retrieve about an ActivityStack in the system. 2300 * @hide 2301 */ 2302 public static class StackInfo implements Parcelable { 2303 public int stackId; 2304 public Rect bounds = new Rect(); 2305 public int[] taskIds; 2306 public String[] taskNames; 2307 public Rect[] taskBounds; 2308 public int[] taskUserIds; 2309 public int displayId; 2310 public int userId; 2311 2312 @Override 2313 public int describeContents() { 2314 return 0; 2315 } 2316 2317 @Override 2318 public void writeToParcel(Parcel dest, int flags) { 2319 dest.writeInt(stackId); 2320 dest.writeInt(bounds.left); 2321 dest.writeInt(bounds.top); 2322 dest.writeInt(bounds.right); 2323 dest.writeInt(bounds.bottom); 2324 dest.writeIntArray(taskIds); 2325 dest.writeStringArray(taskNames); 2326 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2327 dest.writeInt(boundsCount); 2328 for (int i = 0; i < boundsCount; i++) { 2329 dest.writeInt(taskBounds[i].left); 2330 dest.writeInt(taskBounds[i].top); 2331 dest.writeInt(taskBounds[i].right); 2332 dest.writeInt(taskBounds[i].bottom); 2333 } 2334 dest.writeIntArray(taskUserIds); 2335 dest.writeInt(displayId); 2336 dest.writeInt(userId); 2337 } 2338 2339 public void readFromParcel(Parcel source) { 2340 stackId = source.readInt(); 2341 bounds = new Rect( 2342 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2343 taskIds = source.createIntArray(); 2344 taskNames = source.createStringArray(); 2345 final int boundsCount = source.readInt(); 2346 if (boundsCount > 0) { 2347 taskBounds = new Rect[boundsCount]; 2348 for (int i = 0; i < boundsCount; i++) { 2349 taskBounds[i] = new Rect(); 2350 taskBounds[i].set( 2351 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2352 } 2353 } else { 2354 taskBounds = null; 2355 } 2356 taskUserIds = source.createIntArray(); 2357 displayId = source.readInt(); 2358 userId = source.readInt(); 2359 } 2360 2361 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2362 @Override 2363 public StackInfo createFromParcel(Parcel source) { 2364 return new StackInfo(source); 2365 } 2366 @Override 2367 public StackInfo[] newArray(int size) { 2368 return new StackInfo[size]; 2369 } 2370 }; 2371 2372 public StackInfo() { 2373 } 2374 2375 private StackInfo(Parcel source) { 2376 readFromParcel(source); 2377 } 2378 2379 public String toString(String prefix) { 2380 StringBuilder sb = new StringBuilder(256); 2381 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2382 sb.append(" bounds="); sb.append(bounds.toShortString()); 2383 sb.append(" displayId="); sb.append(displayId); 2384 sb.append(" userId="); sb.append(userId); 2385 sb.append("\n"); 2386 prefix = prefix + " "; 2387 for (int i = 0; i < taskIds.length; ++i) { 2388 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2389 sb.append(": "); sb.append(taskNames[i]); 2390 if (taskBounds != null) { 2391 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2392 } 2393 sb.append(" userId=").append(taskUserIds[i]); 2394 sb.append("\n"); 2395 } 2396 return sb.toString(); 2397 } 2398 2399 @Override 2400 public String toString() { 2401 return toString(""); 2402 } 2403 } 2404 2405 /** 2406 * @hide 2407 */ 2408 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2409 try { 2410 return ActivityManagerNative.getDefault().clearApplicationUserData(packageName, 2411 observer, UserHandle.myUserId()); 2412 } catch (RemoteException e) { 2413 throw e.rethrowFromSystemServer(); 2414 } 2415 } 2416 2417 /** 2418 * Permits an application to erase its own data from disk. This is equivalent to 2419 * the user choosing to clear the app's data from within the device settings UI. It 2420 * erases all dynamic data associated with the app -- its private data and data in its 2421 * private area on external storage -- but does not remove the installed application 2422 * itself, nor any OBB files. 2423 * 2424 * @return {@code true} if the application successfully requested that the application's 2425 * data be erased; {@code false} otherwise. 2426 */ 2427 public boolean clearApplicationUserData() { 2428 return clearApplicationUserData(mContext.getPackageName(), null); 2429 } 2430 2431 2432 /** 2433 * Permits an application to get the persistent URI permissions granted to another. 2434 * 2435 * <p>Typically called by Settings. 2436 * 2437 * @param packageName application to look for the granted permissions 2438 * @return list of granted URI permissions 2439 * 2440 * @hide 2441 */ 2442 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2443 try { 2444 return ActivityManagerNative.getDefault().getGrantedUriPermissions(packageName, 2445 UserHandle.myUserId()); 2446 } catch (RemoteException e) { 2447 throw e.rethrowFromSystemServer(); 2448 } 2449 } 2450 2451 /** 2452 * Permits an application to clear the persistent URI permissions granted to another. 2453 * 2454 * <p>Typically called by Settings. 2455 * 2456 * @param packageName application to clear its granted permissions 2457 * 2458 * @hide 2459 */ 2460 public void clearGrantedUriPermissions(String packageName) { 2461 try { 2462 ActivityManagerNative.getDefault().clearGrantedUriPermissions(packageName, 2463 UserHandle.myUserId()); 2464 } catch (RemoteException e) { 2465 throw e.rethrowFromSystemServer(); 2466 } 2467 } 2468 2469 /** 2470 * Information you can retrieve about any processes that are in an error condition. 2471 */ 2472 public static class ProcessErrorStateInfo implements Parcelable { 2473 /** 2474 * Condition codes 2475 */ 2476 public static final int NO_ERROR = 0; 2477 public static final int CRASHED = 1; 2478 public static final int NOT_RESPONDING = 2; 2479 2480 /** 2481 * The condition that the process is in. 2482 */ 2483 public int condition; 2484 2485 /** 2486 * The process name in which the crash or error occurred. 2487 */ 2488 public String processName; 2489 2490 /** 2491 * The pid of this process; 0 if none 2492 */ 2493 public int pid; 2494 2495 /** 2496 * The kernel user-ID that has been assigned to this process; 2497 * currently this is not a unique ID (multiple applications can have 2498 * the same uid). 2499 */ 2500 public int uid; 2501 2502 /** 2503 * The activity name associated with the error, if known. May be null. 2504 */ 2505 public String tag; 2506 2507 /** 2508 * A short message describing the error condition. 2509 */ 2510 public String shortMsg; 2511 2512 /** 2513 * A long message describing the error condition. 2514 */ 2515 public String longMsg; 2516 2517 /** 2518 * The stack trace where the error originated. May be null. 2519 */ 2520 public String stackTrace; 2521 2522 /** 2523 * to be deprecated: This value will always be null. 2524 */ 2525 public byte[] crashData = null; 2526 2527 public ProcessErrorStateInfo() { 2528 } 2529 2530 @Override 2531 public int describeContents() { 2532 return 0; 2533 } 2534 2535 @Override 2536 public void writeToParcel(Parcel dest, int flags) { 2537 dest.writeInt(condition); 2538 dest.writeString(processName); 2539 dest.writeInt(pid); 2540 dest.writeInt(uid); 2541 dest.writeString(tag); 2542 dest.writeString(shortMsg); 2543 dest.writeString(longMsg); 2544 dest.writeString(stackTrace); 2545 } 2546 2547 public void readFromParcel(Parcel source) { 2548 condition = source.readInt(); 2549 processName = source.readString(); 2550 pid = source.readInt(); 2551 uid = source.readInt(); 2552 tag = source.readString(); 2553 shortMsg = source.readString(); 2554 longMsg = source.readString(); 2555 stackTrace = source.readString(); 2556 } 2557 2558 public static final Creator<ProcessErrorStateInfo> CREATOR = 2559 new Creator<ProcessErrorStateInfo>() { 2560 public ProcessErrorStateInfo createFromParcel(Parcel source) { 2561 return new ProcessErrorStateInfo(source); 2562 } 2563 public ProcessErrorStateInfo[] newArray(int size) { 2564 return new ProcessErrorStateInfo[size]; 2565 } 2566 }; 2567 2568 private ProcessErrorStateInfo(Parcel source) { 2569 readFromParcel(source); 2570 } 2571 } 2572 2573 /** 2574 * Returns a list of any processes that are currently in an error condition. The result 2575 * will be null if all processes are running properly at this time. 2576 * 2577 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 2578 * current error conditions (it will not return an empty list). This list ordering is not 2579 * specified. 2580 */ 2581 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 2582 try { 2583 return ActivityManagerNative.getDefault().getProcessesInErrorState(); 2584 } catch (RemoteException e) { 2585 throw e.rethrowFromSystemServer(); 2586 } 2587 } 2588 2589 /** 2590 * Information you can retrieve about a running process. 2591 */ 2592 public static class RunningAppProcessInfo implements Parcelable { 2593 /** 2594 * The name of the process that this object is associated with 2595 */ 2596 public String processName; 2597 2598 /** 2599 * The pid of this process; 0 if none 2600 */ 2601 public int pid; 2602 2603 /** 2604 * The user id of this process. 2605 */ 2606 public int uid; 2607 2608 /** 2609 * All packages that have been loaded into the process. 2610 */ 2611 public String pkgList[]; 2612 2613 /** 2614 * Constant for {@link #flags}: this is an app that is unable to 2615 * correctly save its state when going to the background, 2616 * so it can not be killed while in the background. 2617 * @hide 2618 */ 2619 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 2620 2621 /** 2622 * Constant for {@link #flags}: this process is associated with a 2623 * persistent system app. 2624 * @hide 2625 */ 2626 public static final int FLAG_PERSISTENT = 1<<1; 2627 2628 /** 2629 * Constant for {@link #flags}: this process is associated with a 2630 * persistent system app. 2631 * @hide 2632 */ 2633 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 2634 2635 /** 2636 * Flags of information. May be any of 2637 * {@link #FLAG_CANT_SAVE_STATE}. 2638 * @hide 2639 */ 2640 public int flags; 2641 2642 /** 2643 * Last memory trim level reported to the process: corresponds to 2644 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2645 * ComponentCallbacks2.onTrimMemory(int)}. 2646 */ 2647 public int lastTrimLevel; 2648 2649 /** 2650 * Constant for {@link #importance}: This process is running the 2651 * foreground UI; that is, it is the thing currently at the top of the screen 2652 * that the user is interacting with. 2653 */ 2654 public static final int IMPORTANCE_FOREGROUND = 100; 2655 2656 /** 2657 * Constant for {@link #importance}: This process is running a foreground 2658 * service, for example to perform music playback even while the user is 2659 * not immediately in the app. This generally indicates that the process 2660 * is doing something the user actively cares about. 2661 */ 2662 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 2663 2664 /** 2665 * Constant for {@link #importance}: This process is running the foreground 2666 * UI, but the device is asleep so it is not visible to the user. This means 2667 * the user is not really aware of the process, because they can not see or 2668 * interact with it, but it is quite important because it what they expect to 2669 * return to once unlocking the device. 2670 */ 2671 public static final int IMPORTANCE_TOP_SLEEPING = 150; 2672 2673 /** 2674 * Constant for {@link #importance}: This process is running something 2675 * that is actively visible to the user, though not in the immediate 2676 * foreground. This may be running a window that is behind the current 2677 * foreground (so paused and with its state saved, not interacting with 2678 * the user, but visible to them to some degree); it may also be running 2679 * other services under the system's control that it inconsiders important. 2680 */ 2681 public static final int IMPORTANCE_VISIBLE = 200; 2682 2683 /** 2684 * Constant for {@link #importance}: This process is not something the user 2685 * is directly aware of, but is otherwise perceptable to them to some degree. 2686 */ 2687 public static final int IMPORTANCE_PERCEPTIBLE = 130; 2688 2689 /** 2690 * Constant for {@link #importance}: This process is running an 2691 * application that can not save its state, and thus can't be killed 2692 * while in the background. 2693 * @hide 2694 */ 2695 public static final int IMPORTANCE_CANT_SAVE_STATE = 170; 2696 2697 /** 2698 * Constant for {@link #importance}: This process is contains services 2699 * that should remain running. These are background services apps have 2700 * started, not something the user is aware of, so they may be killed by 2701 * the system relatively freely (though it is generally desired that they 2702 * stay running as long as they want to). 2703 */ 2704 public static final int IMPORTANCE_SERVICE = 300; 2705 2706 /** 2707 * Constant for {@link #importance}: This process process contains 2708 * background code that is expendable. 2709 */ 2710 public static final int IMPORTANCE_BACKGROUND = 400; 2711 2712 /** 2713 * Constant for {@link #importance}: This process is empty of any 2714 * actively running code. 2715 */ 2716 public static final int IMPORTANCE_EMPTY = 500; 2717 2718 /** 2719 * Constant for {@link #importance}: This process does not exist. 2720 */ 2721 public static final int IMPORTANCE_GONE = 1000; 2722 2723 /** @hide */ 2724 public static int procStateToImportance(int procState) { 2725 if (procState == PROCESS_STATE_NONEXISTENT) { 2726 return IMPORTANCE_GONE; 2727 } else if (procState >= PROCESS_STATE_HOME) { 2728 return IMPORTANCE_BACKGROUND; 2729 } else if (procState >= PROCESS_STATE_SERVICE) { 2730 return IMPORTANCE_SERVICE; 2731 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 2732 return IMPORTANCE_CANT_SAVE_STATE; 2733 } else if (procState >= PROCESS_STATE_IMPORTANT_BACKGROUND) { 2734 return IMPORTANCE_PERCEPTIBLE; 2735 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 2736 return IMPORTANCE_VISIBLE; 2737 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 2738 return IMPORTANCE_TOP_SLEEPING; 2739 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 2740 return IMPORTANCE_FOREGROUND_SERVICE; 2741 } else { 2742 return IMPORTANCE_FOREGROUND; 2743 } 2744 } 2745 2746 /** 2747 * The relative importance level that the system places on this 2748 * process. May be one of {@link #IMPORTANCE_FOREGROUND}, 2749 * {@link #IMPORTANCE_VISIBLE}, {@link #IMPORTANCE_SERVICE}, 2750 * {@link #IMPORTANCE_BACKGROUND}, or {@link #IMPORTANCE_EMPTY}. These 2751 * constants are numbered so that "more important" values are always 2752 * smaller than "less important" values. 2753 */ 2754 public int importance; 2755 2756 /** 2757 * An additional ordering within a particular {@link #importance} 2758 * category, providing finer-grained information about the relative 2759 * utility of processes within a category. This number means nothing 2760 * except that a smaller values are more recently used (and thus 2761 * more important). Currently an LRU value is only maintained for 2762 * the {@link #IMPORTANCE_BACKGROUND} category, though others may 2763 * be maintained in the future. 2764 */ 2765 public int lru; 2766 2767 /** 2768 * Constant for {@link #importanceReasonCode}: nothing special has 2769 * been specified for the reason for this level. 2770 */ 2771 public static final int REASON_UNKNOWN = 0; 2772 2773 /** 2774 * Constant for {@link #importanceReasonCode}: one of the application's 2775 * content providers is being used by another process. The pid of 2776 * the client process is in {@link #importanceReasonPid} and the 2777 * target provider in this process is in 2778 * {@link #importanceReasonComponent}. 2779 */ 2780 public static final int REASON_PROVIDER_IN_USE = 1; 2781 2782 /** 2783 * Constant for {@link #importanceReasonCode}: one of the application's 2784 * content providers is being used by another process. The pid of 2785 * the client process is in {@link #importanceReasonPid} and the 2786 * target provider in this process is in 2787 * {@link #importanceReasonComponent}. 2788 */ 2789 public static final int REASON_SERVICE_IN_USE = 2; 2790 2791 /** 2792 * The reason for {@link #importance}, if any. 2793 */ 2794 public int importanceReasonCode; 2795 2796 /** 2797 * For the specified values of {@link #importanceReasonCode}, this 2798 * is the process ID of the other process that is a client of this 2799 * process. This will be 0 if no other process is using this one. 2800 */ 2801 public int importanceReasonPid; 2802 2803 /** 2804 * For the specified values of {@link #importanceReasonCode}, this 2805 * is the name of the component that is being used in this process. 2806 */ 2807 public ComponentName importanceReasonComponent; 2808 2809 /** 2810 * When {@link #importanceReasonPid} is non-0, this is the importance 2811 * of the other pid. @hide 2812 */ 2813 public int importanceReasonImportance; 2814 2815 /** 2816 * Current process state, as per PROCESS_STATE_* constants. 2817 * @hide 2818 */ 2819 public int processState; 2820 2821 public RunningAppProcessInfo() { 2822 importance = IMPORTANCE_FOREGROUND; 2823 importanceReasonCode = REASON_UNKNOWN; 2824 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 2825 } 2826 2827 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 2828 processName = pProcessName; 2829 pid = pPid; 2830 pkgList = pArr; 2831 } 2832 2833 public int describeContents() { 2834 return 0; 2835 } 2836 2837 public void writeToParcel(Parcel dest, int flags) { 2838 dest.writeString(processName); 2839 dest.writeInt(pid); 2840 dest.writeInt(uid); 2841 dest.writeStringArray(pkgList); 2842 dest.writeInt(this.flags); 2843 dest.writeInt(lastTrimLevel); 2844 dest.writeInt(importance); 2845 dest.writeInt(lru); 2846 dest.writeInt(importanceReasonCode); 2847 dest.writeInt(importanceReasonPid); 2848 ComponentName.writeToParcel(importanceReasonComponent, dest); 2849 dest.writeInt(importanceReasonImportance); 2850 dest.writeInt(processState); 2851 } 2852 2853 public void readFromParcel(Parcel source) { 2854 processName = source.readString(); 2855 pid = source.readInt(); 2856 uid = source.readInt(); 2857 pkgList = source.readStringArray(); 2858 flags = source.readInt(); 2859 lastTrimLevel = source.readInt(); 2860 importance = source.readInt(); 2861 lru = source.readInt(); 2862 importanceReasonCode = source.readInt(); 2863 importanceReasonPid = source.readInt(); 2864 importanceReasonComponent = ComponentName.readFromParcel(source); 2865 importanceReasonImportance = source.readInt(); 2866 processState = source.readInt(); 2867 } 2868 2869 public static final Creator<RunningAppProcessInfo> CREATOR = 2870 new Creator<RunningAppProcessInfo>() { 2871 public RunningAppProcessInfo createFromParcel(Parcel source) { 2872 return new RunningAppProcessInfo(source); 2873 } 2874 public RunningAppProcessInfo[] newArray(int size) { 2875 return new RunningAppProcessInfo[size]; 2876 } 2877 }; 2878 2879 private RunningAppProcessInfo(Parcel source) { 2880 readFromParcel(source); 2881 } 2882 } 2883 2884 /** 2885 * Returns a list of application processes installed on external media 2886 * that are running on the device. 2887 * 2888 * <p><b>Note: this method is only intended for debugging or building 2889 * a user-facing process management UI.</b></p> 2890 * 2891 * @return Returns a list of ApplicationInfo records, or null if none 2892 * This list ordering is not specified. 2893 * @hide 2894 */ 2895 public List<ApplicationInfo> getRunningExternalApplications() { 2896 try { 2897 return ActivityManagerNative.getDefault().getRunningExternalApplications(); 2898 } catch (RemoteException e) { 2899 throw e.rethrowFromSystemServer(); 2900 } 2901 } 2902 2903 /** 2904 * Sets the memory trim mode for a process and schedules a memory trim operation. 2905 * 2906 * <p><b>Note: this method is only intended for testing framework.</b></p> 2907 * 2908 * @return Returns true if successful. 2909 * @hide 2910 */ 2911 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 2912 try { 2913 return ActivityManagerNative.getDefault().setProcessMemoryTrimLevel(process, userId, 2914 level); 2915 } catch (RemoteException e) { 2916 throw e.rethrowFromSystemServer(); 2917 } 2918 } 2919 2920 /** 2921 * Returns a list of application processes that are running on the device. 2922 * 2923 * <p><b>Note: this method is only intended for debugging or building 2924 * a user-facing process management UI.</b></p> 2925 * 2926 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 2927 * running processes (it will not return an empty list). This list ordering is not 2928 * specified. 2929 */ 2930 public List<RunningAppProcessInfo> getRunningAppProcesses() { 2931 try { 2932 return ActivityManagerNative.getDefault().getRunningAppProcesses(); 2933 } catch (RemoteException e) { 2934 throw e.rethrowFromSystemServer(); 2935 } 2936 } 2937 2938 /** 2939 * Return the importance of a given package name, based on the processes that are 2940 * currently running. The return value is one of the importance constants defined 2941 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 2942 * processes that this package has code running inside of. If there are no processes 2943 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 2944 * @hide 2945 */ 2946 @SystemApi 2947 public int getPackageImportance(String packageName) { 2948 try { 2949 int procState = ActivityManagerNative.getDefault().getPackageProcessState(packageName, 2950 mContext.getOpPackageName()); 2951 return RunningAppProcessInfo.procStateToImportance(procState); 2952 } catch (RemoteException e) { 2953 throw e.rethrowFromSystemServer(); 2954 } 2955 } 2956 2957 /** 2958 * Return global memory state information for the calling process. This 2959 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 2960 * only fields that will be filled in are 2961 * {@link RunningAppProcessInfo#pid}, 2962 * {@link RunningAppProcessInfo#uid}, 2963 * {@link RunningAppProcessInfo#lastTrimLevel}, 2964 * {@link RunningAppProcessInfo#importance}, 2965 * {@link RunningAppProcessInfo#lru}, and 2966 * {@link RunningAppProcessInfo#importanceReasonCode}. 2967 */ 2968 static public void getMyMemoryState(RunningAppProcessInfo outState) { 2969 try { 2970 ActivityManagerNative.getDefault().getMyMemoryState(outState); 2971 } catch (RemoteException e) { 2972 throw e.rethrowFromSystemServer(); 2973 } 2974 } 2975 2976 /** 2977 * Return information about the memory usage of one or more processes. 2978 * 2979 * <p><b>Note: this method is only intended for debugging or building 2980 * a user-facing process management UI.</b></p> 2981 * 2982 * @param pids The pids of the processes whose memory usage is to be 2983 * retrieved. 2984 * @return Returns an array of memory information, one for each 2985 * requested pid. 2986 */ 2987 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 2988 try { 2989 return ActivityManagerNative.getDefault().getProcessMemoryInfo(pids); 2990 } catch (RemoteException e) { 2991 throw e.rethrowFromSystemServer(); 2992 } 2993 } 2994 2995 /** 2996 * @deprecated This is now just a wrapper for 2997 * {@link #killBackgroundProcesses(String)}; the previous behavior here 2998 * is no longer available to applications because it allows them to 2999 * break other applications by removing their alarms, stopping their 3000 * services, etc. 3001 */ 3002 @Deprecated 3003 public void restartPackage(String packageName) { 3004 killBackgroundProcesses(packageName); 3005 } 3006 3007 /** 3008 * Have the system immediately kill all background processes associated 3009 * with the given package. This is the same as the kernel killing those 3010 * processes to reclaim memory; the system will take care of restarting 3011 * these processes in the future as needed. 3012 * 3013 * <p>You must hold the permission 3014 * {@link android.Manifest.permission#KILL_BACKGROUND_PROCESSES} to be able to 3015 * call this method. 3016 * 3017 * @param packageName The name of the package whose processes are to 3018 * be killed. 3019 */ 3020 public void killBackgroundProcesses(String packageName) { 3021 try { 3022 ActivityManagerNative.getDefault().killBackgroundProcesses(packageName, 3023 UserHandle.myUserId()); 3024 } catch (RemoteException e) { 3025 throw e.rethrowFromSystemServer(); 3026 } 3027 } 3028 3029 /** 3030 * Kills the specified UID. 3031 * @param uid The UID to kill. 3032 * @param reason The reason for the kill. 3033 * 3034 * @hide 3035 */ 3036 @RequiresPermission(Manifest.permission.KILL_UID) 3037 public void killUid(int uid, String reason) { 3038 try { 3039 ActivityManagerNative.getDefault().killUid(UserHandle.getAppId(uid), 3040 UserHandle.getUserId(uid), reason); 3041 } catch (RemoteException e) { 3042 throw e.rethrowFromSystemServer(); 3043 } 3044 } 3045 3046 /** 3047 * Have the system perform a force stop of everything associated with 3048 * the given application package. All processes that share its uid 3049 * will be killed, all services it has running stopped, all activities 3050 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3051 * broadcast will be sent, so that any of its registered alarms can 3052 * be stopped, notifications removed, etc. 3053 * 3054 * <p>You must hold the permission 3055 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3056 * call this method. 3057 * 3058 * @param packageName The name of the package to be stopped. 3059 * @param userId The user for which the running package is to be stopped. 3060 * 3061 * @hide This is not available to third party applications due to 3062 * it allowing them to break other applications by stopping their 3063 * services, removing their alarms, etc. 3064 */ 3065 public void forceStopPackageAsUser(String packageName, int userId) { 3066 try { 3067 ActivityManagerNative.getDefault().forceStopPackage(packageName, userId); 3068 } catch (RemoteException e) { 3069 throw e.rethrowFromSystemServer(); 3070 } 3071 } 3072 3073 /** 3074 * @see #forceStopPackageAsUser(String, int) 3075 * @hide 3076 */ 3077 public void forceStopPackage(String packageName) { 3078 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3079 } 3080 3081 /** 3082 * Get the device configuration attributes. 3083 */ 3084 public ConfigurationInfo getDeviceConfigurationInfo() { 3085 try { 3086 return ActivityManagerNative.getDefault().getDeviceConfigurationInfo(); 3087 } catch (RemoteException e) { 3088 throw e.rethrowFromSystemServer(); 3089 } 3090 } 3091 3092 /** 3093 * Get the preferred density of icons for the launcher. This is used when 3094 * custom drawables are created (e.g., for shortcuts). 3095 * 3096 * @return density in terms of DPI 3097 */ 3098 public int getLauncherLargeIconDensity() { 3099 final Resources res = mContext.getResources(); 3100 final int density = res.getDisplayMetrics().densityDpi; 3101 final int sw = res.getConfiguration().smallestScreenWidthDp; 3102 3103 if (sw < 600) { 3104 // Smaller than approx 7" tablets, use the regular icon size. 3105 return density; 3106 } 3107 3108 switch (density) { 3109 case DisplayMetrics.DENSITY_LOW: 3110 return DisplayMetrics.DENSITY_MEDIUM; 3111 case DisplayMetrics.DENSITY_MEDIUM: 3112 return DisplayMetrics.DENSITY_HIGH; 3113 case DisplayMetrics.DENSITY_TV: 3114 return DisplayMetrics.DENSITY_XHIGH; 3115 case DisplayMetrics.DENSITY_HIGH: 3116 return DisplayMetrics.DENSITY_XHIGH; 3117 case DisplayMetrics.DENSITY_XHIGH: 3118 return DisplayMetrics.DENSITY_XXHIGH; 3119 case DisplayMetrics.DENSITY_XXHIGH: 3120 return DisplayMetrics.DENSITY_XHIGH * 2; 3121 default: 3122 // The density is some abnormal value. Return some other 3123 // abnormal value that is a reasonable scaling of it. 3124 return (int)((density*1.5f)+.5f); 3125 } 3126 } 3127 3128 /** 3129 * Get the preferred launcher icon size. This is used when custom drawables 3130 * are created (e.g., for shortcuts). 3131 * 3132 * @return dimensions of square icons in terms of pixels 3133 */ 3134 public int getLauncherLargeIconSize() { 3135 return getLauncherLargeIconSizeInner(mContext); 3136 } 3137 3138 static int getLauncherLargeIconSizeInner(Context context) { 3139 final Resources res = context.getResources(); 3140 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3141 final int sw = res.getConfiguration().smallestScreenWidthDp; 3142 3143 if (sw < 600) { 3144 // Smaller than approx 7" tablets, use the regular icon size. 3145 return size; 3146 } 3147 3148 final int density = res.getDisplayMetrics().densityDpi; 3149 3150 switch (density) { 3151 case DisplayMetrics.DENSITY_LOW: 3152 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3153 case DisplayMetrics.DENSITY_MEDIUM: 3154 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3155 case DisplayMetrics.DENSITY_TV: 3156 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3157 case DisplayMetrics.DENSITY_HIGH: 3158 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3159 case DisplayMetrics.DENSITY_XHIGH: 3160 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3161 case DisplayMetrics.DENSITY_XXHIGH: 3162 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3163 default: 3164 // The density is some abnormal value. Return some other 3165 // abnormal value that is a reasonable scaling of it. 3166 return (int)((size*1.5f) + .5f); 3167 } 3168 } 3169 3170 /** 3171 * Returns "true" if the user interface is currently being messed with 3172 * by a monkey. 3173 */ 3174 public static boolean isUserAMonkey() { 3175 try { 3176 return ActivityManagerNative.getDefault().isUserAMonkey(); 3177 } catch (RemoteException e) { 3178 throw e.rethrowFromSystemServer(); 3179 } 3180 } 3181 3182 /** 3183 * Returns "true" if device is running in a test harness. 3184 */ 3185 public static boolean isRunningInTestHarness() { 3186 return SystemProperties.getBoolean("ro.test_harness", false); 3187 } 3188 3189 /** 3190 * Returns the launch count of each installed package. 3191 * 3192 * @hide 3193 */ 3194 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3195 try { 3196 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3197 ServiceManager.getService("usagestats")); 3198 if (usageStatsService == null) { 3199 return new HashMap<String, Integer>(); 3200 } 3201 3202 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3203 ActivityThread.currentPackageName()); 3204 if (allPkgUsageStats == null) { 3205 return new HashMap<String, Integer>(); 3206 } 3207 3208 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3209 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3210 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3211 } 3212 3213 return launchCounts; 3214 } catch (RemoteException e) { 3215 Log.w(TAG, "Could not query launch counts", e); 3216 return new HashMap<String, Integer>(); 3217 } 3218 }*/ 3219 3220 /** @hide */ 3221 public static int checkComponentPermission(String permission, int uid, 3222 int owningUid, boolean exported) { 3223 // Root, system server get to do everything. 3224 final int appId = UserHandle.getAppId(uid); 3225 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3226 return PackageManager.PERMISSION_GRANTED; 3227 } 3228 // Isolated processes don't get any permissions. 3229 if (UserHandle.isIsolated(uid)) { 3230 return PackageManager.PERMISSION_DENIED; 3231 } 3232 // If there is a uid that owns whatever is being accessed, it has 3233 // blanket access to it regardless of the permissions it requires. 3234 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3235 return PackageManager.PERMISSION_GRANTED; 3236 } 3237 // If the target is not exported, then nobody else can get to it. 3238 if (!exported) { 3239 /* 3240 RuntimeException here = new RuntimeException("here"); 3241 here.fillInStackTrace(); 3242 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3243 here); 3244 */ 3245 return PackageManager.PERMISSION_DENIED; 3246 } 3247 if (permission == null) { 3248 return PackageManager.PERMISSION_GRANTED; 3249 } 3250 try { 3251 return AppGlobals.getPackageManager() 3252 .checkUidPermission(permission, uid); 3253 } catch (RemoteException e) { 3254 throw e.rethrowFromSystemServer(); 3255 } 3256 } 3257 3258 /** @hide */ 3259 public static int checkUidPermission(String permission, int uid) { 3260 try { 3261 return AppGlobals.getPackageManager() 3262 .checkUidPermission(permission, uid); 3263 } catch (RemoteException e) { 3264 throw e.rethrowFromSystemServer(); 3265 } 3266 } 3267 3268 /** 3269 * @hide 3270 * Helper for dealing with incoming user arguments to system service calls. 3271 * Takes care of checking permissions and converting USER_CURRENT to the 3272 * actual current user. 3273 * 3274 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3275 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3276 * @param userId The user id argument supplied by the caller -- this is the user 3277 * they want to run as. 3278 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3279 * to get a USER_ALL returned and deal with it correctly. If false, 3280 * an exception will be thrown if USER_ALL is supplied. 3281 * @param requireFull If true, the caller must hold 3282 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3283 * different user than their current process; otherwise they must hold 3284 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3285 * @param name Optional textual name of the incoming call; only for generating error messages. 3286 * @param callerPackage Optional package name of caller; only for error messages. 3287 * 3288 * @return Returns the user ID that the call should run as. Will always be a concrete 3289 * user number, unless <var>allowAll</var> is true in which case it could also be 3290 * USER_ALL. 3291 */ 3292 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3293 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3294 if (UserHandle.getUserId(callingUid) == userId) { 3295 return userId; 3296 } 3297 try { 3298 return ActivityManagerNative.getDefault().handleIncomingUser(callingPid, 3299 callingUid, userId, allowAll, requireFull, name, callerPackage); 3300 } catch (RemoteException e) { 3301 throw e.rethrowFromSystemServer(); 3302 } 3303 } 3304 3305 /** 3306 * Gets the userId of the current foreground user. Requires system permissions. 3307 * @hide 3308 */ 3309 @SystemApi 3310 public static int getCurrentUser() { 3311 UserInfo ui; 3312 try { 3313 ui = ActivityManagerNative.getDefault().getCurrentUser(); 3314 return ui != null ? ui.id : 0; 3315 } catch (RemoteException e) { 3316 throw e.rethrowFromSystemServer(); 3317 } 3318 } 3319 3320 /** 3321 * @param userid the user's id. Zero indicates the default user. 3322 * @hide 3323 */ 3324 public boolean switchUser(int userid) { 3325 try { 3326 return ActivityManagerNative.getDefault().switchUser(userid); 3327 } catch (RemoteException e) { 3328 throw e.rethrowFromSystemServer(); 3329 } 3330 } 3331 3332 /** 3333 * Logs out current current foreground user by switching to the system user and stopping the 3334 * user being switched from. 3335 * @hide 3336 */ 3337 public static void logoutCurrentUser() { 3338 int currentUser = ActivityManager.getCurrentUser(); 3339 if (currentUser != UserHandle.USER_SYSTEM) { 3340 try { 3341 ActivityManagerNative.getDefault().switchUser(UserHandle.USER_SYSTEM); 3342 ActivityManagerNative.getDefault().stopUser(currentUser, /* force= */ false, null); 3343 } catch (RemoteException e) { 3344 e.rethrowFromSystemServer(); 3345 } 3346 } 3347 } 3348 3349 /** {@hide} */ 3350 public static final int FLAG_OR_STOPPED = 1 << 0; 3351 /** {@hide} */ 3352 public static final int FLAG_AND_LOCKED = 1 << 1; 3353 /** {@hide} */ 3354 public static final int FLAG_AND_UNLOCKED = 1 << 2; 3355 3356 /** 3357 * Return whether the given user is actively running. This means that 3358 * the user is in the "started" state, not "stopped" -- it is currently 3359 * allowed to run code through scheduled alarms, receiving broadcasts, 3360 * etc. A started user may be either the current foreground user or a 3361 * background user; the result here does not distinguish between the two. 3362 * @param userid the user's id. Zero indicates the default user. 3363 * @hide 3364 */ 3365 public boolean isUserRunning(int userId) { 3366 try { 3367 return ActivityManagerNative.getDefault().isUserRunning(userId, 0); 3368 } catch (RemoteException e) { 3369 throw e.rethrowFromSystemServer(); 3370 } 3371 } 3372 3373 /** {@hide} */ 3374 public boolean isUserRunningAndLocked(int userId) { 3375 try { 3376 return ActivityManagerNative.getDefault().isUserRunning(userId, 3377 ActivityManager.FLAG_AND_LOCKED); 3378 } catch (RemoteException e) { 3379 throw e.rethrowFromSystemServer(); 3380 } 3381 } 3382 3383 /** {@hide} */ 3384 public boolean isUserRunningAndUnlocked(int userId) { 3385 try { 3386 return ActivityManagerNative.getDefault().isUserRunning(userId, 3387 ActivityManager.FLAG_AND_UNLOCKED); 3388 } catch (RemoteException e) { 3389 throw e.rethrowFromSystemServer(); 3390 } 3391 } 3392 3393 /** {@hide} */ 3394 public boolean isVrModePackageEnabled(ComponentName component) { 3395 try { 3396 return ActivityManagerNative.getDefault().isVrModePackageEnabled(component); 3397 } catch (RemoteException e) { 3398 throw e.rethrowFromSystemServer(); 3399 } 3400 } 3401 3402 /** 3403 * Perform a system dump of various state associated with the given application 3404 * package name. This call blocks while the dump is being performed, so should 3405 * not be done on a UI thread. The data will be written to the given file 3406 * descriptor as text. An application must hold the 3407 * {@link android.Manifest.permission#DUMP} permission to make this call. 3408 * @param fd The file descriptor that the dump should be written to. The file 3409 * descriptor is <em>not</em> closed by this function; the caller continues to 3410 * own it. 3411 * @param packageName The name of the package that is to be dumped. 3412 */ 3413 public void dumpPackageState(FileDescriptor fd, String packageName) { 3414 dumpPackageStateStatic(fd, packageName); 3415 } 3416 3417 /** 3418 * @hide 3419 */ 3420 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 3421 FileOutputStream fout = new FileOutputStream(fd); 3422 PrintWriter pw = new FastPrintWriter(fout); 3423 dumpService(pw, fd, "package", new String[] { packageName }); 3424 pw.println(); 3425 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 3426 "-a", "package", packageName }); 3427 pw.println(); 3428 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 3429 pw.println(); 3430 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 3431 pw.println(); 3432 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 3433 pw.println(); 3434 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 3435 pw.flush(); 3436 } 3437 3438 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 3439 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 3440 IBinder service = ServiceManager.checkService(name); 3441 if (service == null) { 3442 pw.println(" (Service not found)"); 3443 return; 3444 } 3445 TransferPipe tp = null; 3446 try { 3447 pw.flush(); 3448 tp = new TransferPipe(); 3449 tp.setBufferPrefix(" "); 3450 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 3451 tp.go(fd, 10000); 3452 } catch (Throwable e) { 3453 if (tp != null) { 3454 tp.kill(); 3455 } 3456 pw.println("Failure dumping service:"); 3457 e.printStackTrace(pw); 3458 } 3459 } 3460 3461 /** 3462 * Request that the system start watching for the calling process to exceed a pss 3463 * size as given here. Once called, the system will look for any occasions where it 3464 * sees the associated process with a larger pss size and, when this happens, automatically 3465 * pull a heap dump from it and allow the user to share the data. Note that this request 3466 * continues running even if the process is killed and restarted. To remove the watch, 3467 * use {@link #clearWatchHeapLimit()}. 3468 * 3469 * <p>This API only work if the calling process has been marked as 3470 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 3471 * (userdebug or eng) build.</p> 3472 * 3473 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 3474 * handle heap limit reports themselves.</p> 3475 * 3476 * @param pssSize The size in bytes to set the limit at. 3477 */ 3478 public void setWatchHeapLimit(long pssSize) { 3479 try { 3480 ActivityManagerNative.getDefault().setDumpHeapDebugLimit(null, 0, pssSize, 3481 mContext.getPackageName()); 3482 } catch (RemoteException e) { 3483 throw e.rethrowFromSystemServer(); 3484 } 3485 } 3486 3487 /** 3488 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 3489 * If your package has an activity handling this action, it will be launched with the 3490 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 3491 * match the activty must support this action and a MIME type of "*/*". 3492 */ 3493 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 3494 3495 /** 3496 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 3497 */ 3498 public void clearWatchHeapLimit() { 3499 try { 3500 ActivityManagerNative.getDefault().setDumpHeapDebugLimit(null, 0, 0, null); 3501 } catch (RemoteException e) { 3502 throw e.rethrowFromSystemServer(); 3503 } 3504 } 3505 3506 /** 3507 * @hide 3508 */ 3509 public void startLockTaskMode(int taskId) { 3510 try { 3511 ActivityManagerNative.getDefault().startLockTaskMode(taskId); 3512 } catch (RemoteException e) { 3513 throw e.rethrowFromSystemServer(); 3514 } 3515 } 3516 3517 /** 3518 * @hide 3519 */ 3520 public void stopLockTaskMode() { 3521 try { 3522 ActivityManagerNative.getDefault().stopLockTaskMode(); 3523 } catch (RemoteException e) { 3524 throw e.rethrowFromSystemServer(); 3525 } 3526 } 3527 3528 /** 3529 * Return whether currently in lock task mode. When in this mode 3530 * no new tasks can be created or switched to. 3531 * 3532 * @see Activity#startLockTask() 3533 * 3534 * @deprecated Use {@link #getLockTaskModeState} instead. 3535 */ 3536 public boolean isInLockTaskMode() { 3537 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 3538 } 3539 3540 /** 3541 * Return the current state of task locking. The three possible outcomes 3542 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 3543 * and {@link #LOCK_TASK_MODE_PINNED}. 3544 * 3545 * @see Activity#startLockTask() 3546 */ 3547 public int getLockTaskModeState() { 3548 try { 3549 return ActivityManagerNative.getDefault().getLockTaskModeState(); 3550 } catch (RemoteException e) { 3551 throw e.rethrowFromSystemServer(); 3552 } 3553 } 3554 3555 /** 3556 * The AppTask allows you to manage your own application's tasks. 3557 * See {@link android.app.ActivityManager#getAppTasks()} 3558 */ 3559 public static class AppTask { 3560 private IAppTask mAppTaskImpl; 3561 3562 /** @hide */ 3563 public AppTask(IAppTask task) { 3564 mAppTaskImpl = task; 3565 } 3566 3567 /** 3568 * Finishes all activities in this task and removes it from the recent tasks list. 3569 */ 3570 public void finishAndRemoveTask() { 3571 try { 3572 mAppTaskImpl.finishAndRemoveTask(); 3573 } catch (RemoteException e) { 3574 throw e.rethrowFromSystemServer(); 3575 } 3576 } 3577 3578 /** 3579 * Get the RecentTaskInfo associated with this task. 3580 * 3581 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 3582 */ 3583 public RecentTaskInfo getTaskInfo() { 3584 try { 3585 return mAppTaskImpl.getTaskInfo(); 3586 } catch (RemoteException e) { 3587 throw e.rethrowFromSystemServer(); 3588 } 3589 } 3590 3591 /** 3592 * Bring this task to the foreground. If it contains activities, they will be 3593 * brought to the foreground with it and their instances re-created if needed. 3594 * If it doesn't contain activities, the root activity of the task will be 3595 * re-launched. 3596 */ 3597 public void moveToFront() { 3598 try { 3599 mAppTaskImpl.moveToFront(); 3600 } catch (RemoteException e) { 3601 throw e.rethrowFromSystemServer(); 3602 } 3603 } 3604 3605 /** 3606 * Start an activity in this task. Brings the task to the foreground. If this task 3607 * is not currently active (that is, its id < 0), then a new activity for the given 3608 * Intent will be launched as the root of the task and the task brought to the 3609 * foreground. Otherwise, if this task is currently active and the Intent does not specify 3610 * an activity to launch in a new task, then a new activity for the given Intent will 3611 * be launched on top of the task and the task brought to the foreground. If this 3612 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 3613 * or would otherwise be launched in to a new task, then the activity not launched but 3614 * this task be brought to the foreground and a new intent delivered to the top 3615 * activity if appropriate. 3616 * 3617 * <p>In other words, you generally want to use an Intent here that does not specify 3618 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 3619 * and let the system do the right thing.</p> 3620 * 3621 * @param intent The Intent describing the new activity to be launched on the task. 3622 * @param options Optional launch options. 3623 * 3624 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 3625 */ 3626 public void startActivity(Context context, Intent intent, Bundle options) { 3627 ActivityThread thread = ActivityThread.currentActivityThread(); 3628 thread.getInstrumentation().execStartActivityFromAppTask(context, 3629 thread.getApplicationThread(), mAppTaskImpl, intent, options); 3630 } 3631 3632 /** 3633 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 3634 * Intent of this AppTask. 3635 * 3636 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 3637 * be set; otherwise, it will be cleared. 3638 */ 3639 public void setExcludeFromRecents(boolean exclude) { 3640 try { 3641 mAppTaskImpl.setExcludeFromRecents(exclude); 3642 } catch (RemoteException e) { 3643 throw e.rethrowFromSystemServer(); 3644 } 3645 } 3646 } 3647} 3648