ActivityManager.java revision 64ae08aa16fdf7ee33073979400afa40692342f1
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.content.res.Configuration; 26import android.graphics.Canvas; 27import android.graphics.Matrix; 28import android.graphics.Point; 29import android.os.BatteryStats; 30import android.os.IBinder; 31import android.os.ParcelFileDescriptor; 32 33import android.util.Log; 34import com.android.internal.app.ProcessStats; 35import com.android.internal.os.TransferPipe; 36import com.android.internal.util.FastPrintWriter; 37 38import android.content.ComponentName; 39import android.content.Context; 40import android.content.Intent; 41import android.content.UriPermission; 42import android.content.pm.ApplicationInfo; 43import android.content.pm.ConfigurationInfo; 44import android.content.pm.IPackageDataObserver; 45import android.content.pm.PackageManager; 46import android.content.pm.ParceledListSlice; 47import android.content.pm.UserInfo; 48import android.content.res.Resources; 49import android.graphics.Bitmap; 50import android.graphics.Color; 51import android.graphics.Rect; 52import android.os.Bundle; 53import android.os.Debug; 54import android.os.Handler; 55import android.os.Parcel; 56import android.os.Parcelable; 57import android.os.Process; 58import android.os.RemoteException; 59import android.os.ServiceManager; 60import android.os.SystemProperties; 61import android.os.UserHandle; 62import android.text.TextUtils; 63import android.util.DisplayMetrics; 64import android.util.Size; 65import android.util.Slog; 66 67import org.xmlpull.v1.XmlSerializer; 68 69import java.io.FileDescriptor; 70import java.io.FileOutputStream; 71import java.io.IOException; 72import java.io.PrintWriter; 73import java.lang.annotation.Retention; 74import java.lang.annotation.RetentionPolicy; 75import java.util.ArrayList; 76import java.util.List; 77 78/** 79 * Interact with the overall activities running in the system. 80 */ 81public class ActivityManager { 82 private static String TAG = "ActivityManager"; 83 84 private static int gMaxRecentTasks = -1; 85 86 private final Context mContext; 87 private final Handler mHandler; 88 89 /** 90 * Defines acceptable types of bugreports. 91 * @hide 92 */ 93 @Retention(RetentionPolicy.SOURCE) 94 @IntDef({ 95 BUGREPORT_OPTION_FULL, 96 BUGREPORT_OPTION_INTERACTIVE, 97 BUGREPORT_OPTION_REMOTE 98 }) 99 public @interface BugreportMode {} 100 /** 101 * Takes a bugreport without user interference (and hence causing less 102 * interference to the system), but includes all sections. 103 * @hide 104 */ 105 public static final int BUGREPORT_OPTION_FULL = 0; 106 /** 107 * Allows user to monitor progress and enter additional data; might not include all 108 * sections. 109 * @hide 110 */ 111 public static final int BUGREPORT_OPTION_INTERACTIVE = 1; 112 /** 113 * Takes a bugreport requested remotely by administrator of the Device Owner app, 114 * not the device's user. 115 * @hide 116 */ 117 public static final int BUGREPORT_OPTION_REMOTE = 2; 118 119 /** 120 * <a href="{@docRoot}guide/topics/manifest/meta-data-element.html">{@code 121 * <meta-data>}</a> name for a 'home' Activity that declares a package that is to be 122 * uninstalled in lieu of the declaring one. The package named here must be 123 * signed with the same certificate as the one declaring the {@code <meta-data>}. 124 */ 125 public static final String META_HOME_ALTERNATE = "android.app.home.alternate"; 126 127 /** 128 * Result for IActivityManager.startActivity: trying to start a background user 129 * activity that shouldn't be displayed for all users. 130 * @hide 131 */ 132 public static final int START_NOT_CURRENT_USER_ACTIVITY = -8; 133 134 /** 135 * Result for IActivityManager.startActivity: trying to start an activity under voice 136 * control when that activity does not support the VOICE category. 137 * @hide 138 */ 139 public static final int START_NOT_VOICE_COMPATIBLE = -7; 140 141 /** 142 * Result for IActivityManager.startActivity: an error where the 143 * start had to be canceled. 144 * @hide 145 */ 146 public static final int START_CANCELED = -6; 147 148 /** 149 * Result for IActivityManager.startActivity: an error where the 150 * thing being started is not an activity. 151 * @hide 152 */ 153 public static final int START_NOT_ACTIVITY = -5; 154 155 /** 156 * Result for IActivityManager.startActivity: an error where the 157 * caller does not have permission to start the activity. 158 * @hide 159 */ 160 public static final int START_PERMISSION_DENIED = -4; 161 162 /** 163 * Result for IActivityManager.startActivity: an error where the 164 * caller has requested both to forward a result and to receive 165 * a result. 166 * @hide 167 */ 168 public static final int START_FORWARD_AND_REQUEST_CONFLICT = -3; 169 170 /** 171 * Result for IActivityManager.startActivity: an error where the 172 * requested class is not found. 173 * @hide 174 */ 175 public static final int START_CLASS_NOT_FOUND = -2; 176 177 /** 178 * Result for IActivityManager.startActivity: an error where the 179 * given Intent could not be resolved to an activity. 180 * @hide 181 */ 182 public static final int START_INTENT_NOT_RESOLVED = -1; 183 184 /** 185 * Result for IActivityManaqer.startActivity: the activity was started 186 * successfully as normal. 187 * @hide 188 */ 189 public static final int START_SUCCESS = 0; 190 191 /** 192 * Result for IActivityManaqer.startActivity: the caller asked that the Intent not 193 * be executed if it is the recipient, and that is indeed the case. 194 * @hide 195 */ 196 public static final int START_RETURN_INTENT_TO_CALLER = 1; 197 198 /** 199 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 200 * a task was simply brought to the foreground. 201 * @hide 202 */ 203 public static final int START_TASK_TO_FRONT = 2; 204 205 /** 206 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 207 * the given Intent was given to the existing top activity. 208 * @hide 209 */ 210 public static final int START_DELIVERED_TO_TOP = 3; 211 212 /** 213 * Result for IActivityManaqer.startActivity: request was canceled because 214 * app switches are temporarily canceled to ensure the user's last request 215 * (such as pressing home) is performed. 216 * @hide 217 */ 218 public static final int START_SWITCHES_CANCELED = 4; 219 220 /** 221 * Result for IActivityManaqer.startActivity: a new activity was attempted to be started 222 * while in Lock Task Mode. 223 * @hide 224 */ 225 public static final int START_RETURN_LOCK_TASK_MODE_VIOLATION = 5; 226 227 /** 228 * Flag for IActivityManaqer.startActivity: do special start mode where 229 * a new activity is launched only if it is needed. 230 * @hide 231 */ 232 public static final int START_FLAG_ONLY_IF_NEEDED = 1<<0; 233 234 /** 235 * Flag for IActivityManaqer.startActivity: launch the app for 236 * debugging. 237 * @hide 238 */ 239 public static final int START_FLAG_DEBUG = 1<<1; 240 241 /** 242 * Flag for IActivityManaqer.startActivity: launch the app for 243 * allocation tracking. 244 * @hide 245 */ 246 public static final int START_FLAG_TRACK_ALLOCATION = 1<<2; 247 248 /** 249 * Flag for IActivityManaqer.startActivity: launch the app with 250 * native debugging support. 251 * @hide 252 */ 253 public static final int START_FLAG_NATIVE_DEBUGGING = 1<<3; 254 255 /** 256 * Result for IActivityManaqer.broadcastIntent: success! 257 * @hide 258 */ 259 public static final int BROADCAST_SUCCESS = 0; 260 261 /** 262 * Result for IActivityManaqer.broadcastIntent: attempt to broadcast 263 * a sticky intent without appropriate permission. 264 * @hide 265 */ 266 public static final int BROADCAST_STICKY_CANT_HAVE_PERMISSION = -1; 267 268 /** 269 * Result for IActivityManager.broadcastIntent: trying to send a broadcast 270 * to a stopped user. Fail. 271 * @hide 272 */ 273 public static final int BROADCAST_FAILED_USER_STOPPED = -2; 274 275 /** 276 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 277 * for a sendBroadcast operation. 278 * @hide 279 */ 280 public static final int INTENT_SENDER_BROADCAST = 1; 281 282 /** 283 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 284 * for a startActivity operation. 285 * @hide 286 */ 287 public static final int INTENT_SENDER_ACTIVITY = 2; 288 289 /** 290 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 291 * for an activity result operation. 292 * @hide 293 */ 294 public static final int INTENT_SENDER_ACTIVITY_RESULT = 3; 295 296 /** 297 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 298 * for a startService operation. 299 * @hide 300 */ 301 public static final int INTENT_SENDER_SERVICE = 4; 302 303 /** @hide User operation call: success! */ 304 public static final int USER_OP_SUCCESS = 0; 305 306 /** @hide User operation call: given user id is not known. */ 307 public static final int USER_OP_UNKNOWN_USER = -1; 308 309 /** @hide User operation call: given user id is the current user, can't be stopped. */ 310 public static final int USER_OP_IS_CURRENT = -2; 311 312 /** @hide User operation call: system user can't be stopped. */ 313 public static final int USER_OP_ERROR_IS_SYSTEM = -3; 314 315 /** @hide User operation call: one of related users cannot be stopped. */ 316 public static final int USER_OP_ERROR_RELATED_USERS_CANNOT_STOP = -4; 317 318 /** @hide Process does not exist. */ 319 public static final int PROCESS_STATE_NONEXISTENT = -1; 320 321 /** @hide Process is a persistent system process. */ 322 public static final int PROCESS_STATE_PERSISTENT = 0; 323 324 /** @hide Process is a persistent system process and is doing UI. */ 325 public static final int PROCESS_STATE_PERSISTENT_UI = 1; 326 327 /** @hide Process is hosting the current top activities. Note that this covers 328 * all activities that are visible to the user. */ 329 public static final int PROCESS_STATE_TOP = 2; 330 331 /** @hide Process is hosting a foreground service due to a system binding. */ 332 public static final int PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 3; 333 334 /** @hide Process is hosting a foreground service. */ 335 public static final int PROCESS_STATE_FOREGROUND_SERVICE = 4; 336 337 /** @hide Same as {@link #PROCESS_STATE_TOP} but while device is sleeping. */ 338 public static final int PROCESS_STATE_TOP_SLEEPING = 5; 339 340 /** @hide Process is important to the user, and something they are aware of. */ 341 public static final int PROCESS_STATE_IMPORTANT_FOREGROUND = 6; 342 343 /** @hide Process is important to the user, but not something they are aware of. */ 344 public static final int PROCESS_STATE_IMPORTANT_BACKGROUND = 7; 345 346 /** @hide Process is in the background running a backup/restore operation. */ 347 public static final int PROCESS_STATE_BACKUP = 8; 348 349 /** @hide Process is in the background, but it can't restore its state so we want 350 * to try to avoid killing it. */ 351 public static final int PROCESS_STATE_HEAVY_WEIGHT = 9; 352 353 /** @hide Process is in the background running a service. Unlike oom_adj, this level 354 * is used for both the normal running in background state and the executing 355 * operations state. */ 356 public static final int PROCESS_STATE_SERVICE = 10; 357 358 /** @hide Process is in the background running a receiver. Note that from the 359 * perspective of oom_adj receivers run at a higher foreground level, but for our 360 * prioritization here that is not necessary and putting them below services means 361 * many fewer changes in some process states as they receive broadcasts. */ 362 public static final int PROCESS_STATE_RECEIVER = 11; 363 364 /** @hide Process is in the background but hosts the home activity. */ 365 public static final int PROCESS_STATE_HOME = 12; 366 367 /** @hide Process is in the background but hosts the last shown activity. */ 368 public static final int PROCESS_STATE_LAST_ACTIVITY = 13; 369 370 /** @hide Process is being cached for later use and contains activities. */ 371 public static final int PROCESS_STATE_CACHED_ACTIVITY = 14; 372 373 /** @hide Process is being cached for later use and is a client of another cached 374 * process that contains activities. */ 375 public static final int PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 15; 376 377 /** @hide Process is being cached for later use and is empty. */ 378 public static final int PROCESS_STATE_CACHED_EMPTY = 16; 379 380 /** @hide Should this process state be considered a background state? */ 381 public static final boolean isProcStateBackground(int procState) { 382 return procState >= PROCESS_STATE_BACKUP; 383 } 384 385 /** @hide requestType for assist context: only basic information. */ 386 public static final int ASSIST_CONTEXT_BASIC = 0; 387 388 /** @hide requestType for assist context: generate full AssistStructure. */ 389 public static final int ASSIST_CONTEXT_FULL = 1; 390 391 /** @hide Flag for registerUidObserver: report changes in process state. */ 392 public static final int UID_OBSERVER_PROCSTATE = 1<<0; 393 394 /** @hide Flag for registerUidObserver: report uid gone. */ 395 public static final int UID_OBSERVER_GONE = 1<<1; 396 397 /** @hide Flag for registerUidObserver: report uid has become idle. */ 398 public static final int UID_OBSERVER_IDLE = 1<<2; 399 400 /** @hide Flag for registerUidObserver: report uid has become active. */ 401 public static final int UID_OBSERVER_ACTIVE = 1<<3; 402 403 /** @hide Mode for {@link IActivityManager#getAppStartMode}: normal free-to-run operation. */ 404 public static final int APP_START_MODE_NORMAL = 0; 405 406 /** @hide Mode for {@link IActivityManager#getAppStartMode}: delay running until later. */ 407 public static final int APP_START_MODE_DELAYED = 1; 408 409 /** @hide Mode for {@link IActivityManager#getAppStartMode}: disable/cancel pending 410 * launches. */ 411 public static final int APP_START_MODE_DISABLED = 2; 412 413 /** 414 * Lock task mode is not active. 415 */ 416 public static final int LOCK_TASK_MODE_NONE = 0; 417 418 /** 419 * Full lock task mode is active. 420 */ 421 public static final int LOCK_TASK_MODE_LOCKED = 1; 422 423 /** 424 * App pinning mode is active. 425 */ 426 public static final int LOCK_TASK_MODE_PINNED = 2; 427 428 Point mAppTaskThumbnailSize; 429 430 /*package*/ ActivityManager(Context context, Handler handler) { 431 mContext = context; 432 mHandler = handler; 433 } 434 435 /** 436 * Screen compatibility mode: the application most always run in 437 * compatibility mode. 438 * @hide 439 */ 440 public static final int COMPAT_MODE_ALWAYS = -1; 441 442 /** 443 * Screen compatibility mode: the application can never run in 444 * compatibility mode. 445 * @hide 446 */ 447 public static final int COMPAT_MODE_NEVER = -2; 448 449 /** 450 * Screen compatibility mode: unknown. 451 * @hide 452 */ 453 public static final int COMPAT_MODE_UNKNOWN = -3; 454 455 /** 456 * Screen compatibility mode: the application currently has compatibility 457 * mode disabled. 458 * @hide 459 */ 460 public static final int COMPAT_MODE_DISABLED = 0; 461 462 /** 463 * Screen compatibility mode: the application currently has compatibility 464 * mode enabled. 465 * @hide 466 */ 467 public static final int COMPAT_MODE_ENABLED = 1; 468 469 /** 470 * Screen compatibility mode: request to toggle the application's 471 * compatibility mode. 472 * @hide 473 */ 474 public static final int COMPAT_MODE_TOGGLE = 2; 475 476 /** @hide */ 477 public static class StackId { 478 /** Invalid stack ID. */ 479 public static final int INVALID_STACK_ID = -1; 480 481 /** First static stack ID. */ 482 public static final int FIRST_STATIC_STACK_ID = 0; 483 484 /** Home activity stack ID. */ 485 public static final int HOME_STACK_ID = FIRST_STATIC_STACK_ID; 486 487 /** ID of stack where fullscreen activities are normally launched into. */ 488 public static final int FULLSCREEN_WORKSPACE_STACK_ID = 1; 489 490 /** ID of stack where freeform/resized activities are normally launched into. */ 491 public static final int FREEFORM_WORKSPACE_STACK_ID = FULLSCREEN_WORKSPACE_STACK_ID + 1; 492 493 /** ID of stack that occupies a dedicated region of the screen. */ 494 public static final int DOCKED_STACK_ID = FREEFORM_WORKSPACE_STACK_ID + 1; 495 496 /** ID of stack that always on top (always visible) when it exist. */ 497 public static final int PINNED_STACK_ID = DOCKED_STACK_ID + 1; 498 499 /** Last static stack stack ID. */ 500 public static final int LAST_STATIC_STACK_ID = PINNED_STACK_ID; 501 502 /** Start of ID range used by stacks that are created dynamically. */ 503 public static final int FIRST_DYNAMIC_STACK_ID = LAST_STATIC_STACK_ID + 1; 504 505 public static boolean isStaticStack(int stackId) { 506 return stackId >= FIRST_STATIC_STACK_ID && stackId <= LAST_STATIC_STACK_ID; 507 } 508 509 /** 510 * Returns true if the activities contained in the input stack display a shadow around 511 * their border. 512 */ 513 public static boolean hasWindowShadow(int stackId) { 514 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 515 } 516 517 /** 518 * Returns true if the activities contained in the input stack display a decor view. 519 */ 520 public static boolean hasWindowDecor(int stackId) { 521 return stackId == FREEFORM_WORKSPACE_STACK_ID; 522 } 523 524 /** 525 * Returns true if the tasks contained in the stack can be resized independently of the 526 * stack. 527 */ 528 public static boolean isTaskResizeAllowed(int stackId) { 529 return stackId == FREEFORM_WORKSPACE_STACK_ID; 530 } 531 532 /** Returns true if the task bounds should persist across power cycles. */ 533 public static boolean persistTaskBounds(int stackId) { 534 return stackId == FREEFORM_WORKSPACE_STACK_ID; 535 } 536 537 /** 538 * Returns true if dynamic stacks are allowed to be visible behind the input stack. 539 */ 540 public static boolean isDynamicStacksVisibleBehindAllowed(int stackId) { 541 return stackId == PINNED_STACK_ID; 542 } 543 544 /** 545 * Returns true if we try to maintain focus in the current stack when the top activity 546 * finishes. 547 */ 548 public static boolean keepFocusInStackIfPossible(int stackId) { 549 return stackId == FREEFORM_WORKSPACE_STACK_ID 550 || stackId == DOCKED_STACK_ID || stackId == PINNED_STACK_ID; 551 } 552 553 /** 554 * Returns true if Stack size is affected by the docked stack changing size. 555 */ 556 public static boolean isResizeableByDockedStack(int stackId) { 557 return isStaticStack(stackId) && 558 stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID; 559 } 560 561 /** 562 * Returns true if the size of tasks in the input stack are affected by the docked stack 563 * changing size. 564 */ 565 public static boolean isTaskResizeableByDockedStack(int stackId) { 566 return isStaticStack(stackId) && stackId != FREEFORM_WORKSPACE_STACK_ID 567 && stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID; 568 } 569 570 /** 571 * Returns true if the windows of tasks being moved to the target stack from the source 572 * stack should be replaced, meaning that window manager will keep the old window around 573 * until the new is ready. 574 */ 575 public static boolean replaceWindowsOnTaskMove(int sourceStackId, int targetStackId) { 576 return sourceStackId == FREEFORM_WORKSPACE_STACK_ID 577 || targetStackId == FREEFORM_WORKSPACE_STACK_ID; 578 } 579 580 /** 581 * Return whether a stackId is a stack containing floating windows. Floating windows 582 * are laid out differently as they are allowed to extend past the display bounds 583 * without overscan insets. 584 */ 585 public static boolean tasksAreFloating(int stackId) { 586 return stackId == FREEFORM_WORKSPACE_STACK_ID 587 || stackId == PINNED_STACK_ID; 588 } 589 590 /** 591 * Returns true if animation specs should be constructed for app transition that moves 592 * the task to the specified stack. 593 */ 594 public static boolean useAnimationSpecForAppTransition(int stackId) { 595 596 // TODO: INVALID_STACK_ID is also animated because we don't persist stack id's across 597 // reboots. 598 return stackId == FREEFORM_WORKSPACE_STACK_ID 599 || stackId == FULLSCREEN_WORKSPACE_STACK_ID || stackId == DOCKED_STACK_ID 600 || stackId == INVALID_STACK_ID; 601 } 602 603 /** Returns true if the windows in the stack can receive input keys. */ 604 public static boolean canReceiveKeys(int stackId) { 605 return stackId != PINNED_STACK_ID; 606 } 607 608 /** 609 * Returns true if the stack can be visible above lockscreen. 610 */ 611 public static boolean isAllowedOverLockscreen(int stackId) { 612 return stackId == HOME_STACK_ID || stackId == FULLSCREEN_WORKSPACE_STACK_ID; 613 } 614 615 public static boolean isAlwaysOnTop(int stackId) { 616 return stackId == PINNED_STACK_ID; 617 } 618 619 /** 620 * Returns true if the top task in the task is allowed to return home when finished and 621 * there are other tasks in the stack. 622 */ 623 public static boolean allowTopTaskToReturnHome(int stackId) { 624 return stackId != PINNED_STACK_ID; 625 } 626 627 /** 628 * Returns true if the stack should be resized to match the bounds specified by 629 * {@link ActivityOptions#setLaunchBounds} when launching an activity into the stack. 630 */ 631 public static boolean resizeStackWithLaunchBounds(int stackId) { 632 return stackId == PINNED_STACK_ID; 633 } 634 635 /** 636 * Returns true if any visible windows belonging to apps in this stack should be kept on 637 * screen when the app is killed due to something like the low memory killer. 638 */ 639 public static boolean keepVisibleDeadAppWindowOnScreen(int stackId) { 640 return stackId != PINNED_STACK_ID; 641 } 642 643 /** 644 * Returns true if the backdrop on the client side should match the frame of the window. 645 * Returns false, if the backdrop should be fullscreen. 646 */ 647 public static boolean useWindowFrameForBackdrop(int stackId) { 648 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 649 } 650 651 /** 652 * Returns true if a window from the specified stack with {@param stackId} are normally 653 * fullscreen, i. e. they can become the top opaque fullscreen window, meaning that it 654 * controls system bars, lockscreen occluded/dismissing state, screen rotation animation, 655 * etc. 656 */ 657 public static boolean normallyFullscreenWindows(int stackId) { 658 return stackId != PINNED_STACK_ID && stackId != FREEFORM_WORKSPACE_STACK_ID 659 && stackId != DOCKED_STACK_ID; 660 } 661 662 /** 663 * Returns true if the input stack id should only be present on a device that supports 664 * multi-window mode. 665 * @see android.app.ActivityManager#supportsMultiWindow 666 */ 667 public static boolean isMultiWindowStack(int stackId) { 668 return isStaticStack(stackId) || stackId == PINNED_STACK_ID 669 || stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == DOCKED_STACK_ID; 670 } 671 } 672 673 /** 674 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 675 * specifies the position of the created docked stack at the top half of the screen if 676 * in portrait mode or at the left half of the screen if in landscape mode. 677 * @hide 678 */ 679 public static final int DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT = 0; 680 681 /** 682 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 683 * specifies the position of the created docked stack at the bottom half of the screen if 684 * in portrait mode or at the right half of the screen if in landscape mode. 685 * @hide 686 */ 687 public static final int DOCKED_STACK_CREATE_MODE_BOTTOM_OR_RIGHT = 1; 688 689 /** 690 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 691 * that the resize doesn't need to preserve the window, and can be skipped if bounds 692 * is unchanged. This mode is used by window manager in most cases. 693 * @hide 694 */ 695 public static final int RESIZE_MODE_SYSTEM = 0; 696 697 /** 698 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 699 * that the resize should preserve the window if possible. 700 * @hide 701 */ 702 public static final int RESIZE_MODE_PRESERVE_WINDOW = (0x1 << 0); 703 704 /** 705 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 706 * that the resize should be performed even if the bounds appears unchanged. 707 * @hide 708 */ 709 public static final int RESIZE_MODE_FORCED = (0x1 << 1); 710 711 /** 712 * Input parameter to {@link android.app.IActivityManager#resizeTask} used by window 713 * manager during a screen rotation. 714 * @hide 715 */ 716 public static final int RESIZE_MODE_SYSTEM_SCREEN_ROTATION = RESIZE_MODE_PRESERVE_WINDOW; 717 718 /** 719 * Input parameter to {@link android.app.IActivityManager#resizeTask} used when the 720 * resize is due to a drag action. 721 * @hide 722 */ 723 public static final int RESIZE_MODE_USER = RESIZE_MODE_PRESERVE_WINDOW; 724 725 /** 726 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 727 * that the resize should preserve the window if possible, and should not be skipped 728 * even if the bounds is unchanged. Usually used to force a resizing when a drag action 729 * is ending. 730 * @hide 731 */ 732 public static final int RESIZE_MODE_USER_FORCED = 733 RESIZE_MODE_PRESERVE_WINDOW | RESIZE_MODE_FORCED; 734 735 /** @hide */ 736 public int getFrontActivityScreenCompatMode() { 737 try { 738 return ActivityManagerNative.getDefault().getFrontActivityScreenCompatMode(); 739 } catch (RemoteException e) { 740 throw e.rethrowFromSystemServer(); 741 } 742 } 743 744 /** @hide */ 745 public void setFrontActivityScreenCompatMode(int mode) { 746 try { 747 ActivityManagerNative.getDefault().setFrontActivityScreenCompatMode(mode); 748 } catch (RemoteException e) { 749 throw e.rethrowFromSystemServer(); 750 } 751 } 752 753 /** @hide */ 754 public int getPackageScreenCompatMode(String packageName) { 755 try { 756 return ActivityManagerNative.getDefault().getPackageScreenCompatMode(packageName); 757 } catch (RemoteException e) { 758 throw e.rethrowFromSystemServer(); 759 } 760 } 761 762 /** @hide */ 763 public void setPackageScreenCompatMode(String packageName, int mode) { 764 try { 765 ActivityManagerNative.getDefault().setPackageScreenCompatMode(packageName, mode); 766 } catch (RemoteException e) { 767 throw e.rethrowFromSystemServer(); 768 } 769 } 770 771 /** @hide */ 772 public boolean getPackageAskScreenCompat(String packageName) { 773 try { 774 return ActivityManagerNative.getDefault().getPackageAskScreenCompat(packageName); 775 } catch (RemoteException e) { 776 throw e.rethrowFromSystemServer(); 777 } 778 } 779 780 /** @hide */ 781 public void setPackageAskScreenCompat(String packageName, boolean ask) { 782 try { 783 ActivityManagerNative.getDefault().setPackageAskScreenCompat(packageName, ask); 784 } catch (RemoteException e) { 785 throw e.rethrowFromSystemServer(); 786 } 787 } 788 789 /** 790 * Return the approximate per-application memory class of the current 791 * device. This gives you an idea of how hard a memory limit you should 792 * impose on your application to let the overall system work best. The 793 * returned value is in megabytes; the baseline Android memory class is 794 * 16 (which happens to be the Java heap limit of those devices); some 795 * device with more memory may return 24 or even higher numbers. 796 */ 797 public int getMemoryClass() { 798 return staticGetMemoryClass(); 799 } 800 801 /** @hide */ 802 static public int staticGetMemoryClass() { 803 // Really brain dead right now -- just take this from the configured 804 // vm heap size, and assume it is in megabytes and thus ends with "m". 805 String vmHeapSize = SystemProperties.get("dalvik.vm.heapgrowthlimit", ""); 806 if (vmHeapSize != null && !"".equals(vmHeapSize)) { 807 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1)); 808 } 809 return staticGetLargeMemoryClass(); 810 } 811 812 /** 813 * Return the approximate per-application memory class of the current 814 * device when an application is running with a large heap. This is the 815 * space available for memory-intensive applications; most applications 816 * should not need this amount of memory, and should instead stay with the 817 * {@link #getMemoryClass()} limit. The returned value is in megabytes. 818 * This may be the same size as {@link #getMemoryClass()} on memory 819 * constrained devices, or it may be significantly larger on devices with 820 * a large amount of available RAM. 821 * 822 * <p>The is the size of the application's Dalvik heap if it has 823 * specified <code>android:largeHeap="true"</code> in its manifest. 824 */ 825 public int getLargeMemoryClass() { 826 return staticGetLargeMemoryClass(); 827 } 828 829 /** @hide */ 830 static public int staticGetLargeMemoryClass() { 831 // Really brain dead right now -- just take this from the configured 832 // vm heap size, and assume it is in megabytes and thus ends with "m". 833 String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m"); 834 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1)); 835 } 836 837 /** 838 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 839 * is ultimately up to the device configuration, but currently it generally means 840 * something in the class of a 512MB device with about a 800x480 or less screen. 841 * This is mostly intended to be used by apps to determine whether they should turn 842 * off certain features that require more RAM. 843 */ 844 public boolean isLowRamDevice() { 845 return isLowRamDeviceStatic(); 846 } 847 848 /** @hide */ 849 public static boolean isLowRamDeviceStatic() { 850 return "true".equals(SystemProperties.get("ro.config.low_ram", "false")); 851 } 852 853 /** 854 * Used by persistent processes to determine if they are running on a 855 * higher-end device so should be okay using hardware drawing acceleration 856 * (which tends to consume a lot more RAM). 857 * @hide 858 */ 859 static public boolean isHighEndGfx() { 860 return !isLowRamDeviceStatic() && 861 !Resources.getSystem().getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 862 } 863 864 /** 865 * Return the maximum number of recents entries that we will maintain and show. 866 * @hide 867 */ 868 static public int getMaxRecentTasksStatic() { 869 if (gMaxRecentTasks < 0) { 870 return gMaxRecentTasks = isLowRamDeviceStatic() ? 50 : 100; 871 } 872 return gMaxRecentTasks; 873 } 874 875 /** 876 * Return the default limit on the number of recents that an app can make. 877 * @hide 878 */ 879 static public int getDefaultAppRecentsLimitStatic() { 880 return getMaxRecentTasksStatic() / 6; 881 } 882 883 /** 884 * Return the maximum limit on the number of recents that an app can make. 885 * @hide 886 */ 887 static public int getMaxAppRecentsLimitStatic() { 888 return getMaxRecentTasksStatic() / 2; 889 } 890 891 /** 892 * Returns true if the system supports at least one form of multi-window. 893 * E.g. freeform, split-screen, picture-in-picture. 894 * @hide 895 */ 896 static public boolean supportsMultiWindow() { 897 return !isLowRamDeviceStatic() 898 && Resources.getSystem().getBoolean( 899 com.android.internal.R.bool.config_supportsMultiWindow); 900 } 901 902 /** 903 * Information you can set and retrieve about the current activity within the recent task list. 904 */ 905 public static class TaskDescription implements Parcelable { 906 /** @hide */ 907 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 908 private static final String ATTR_TASKDESCRIPTIONLABEL = 909 ATTR_TASKDESCRIPTION_PREFIX + "label"; 910 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 911 ATTR_TASKDESCRIPTION_PREFIX + "color"; 912 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 913 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 914 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 915 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 916 917 private String mLabel; 918 private Bitmap mIcon; 919 private String mIconFilename; 920 private int mColorPrimary; 921 private int mColorBackground; 922 923 /** 924 * Creates the TaskDescription to the specified values. 925 * 926 * @param label A label and description of the current state of this task. 927 * @param icon An icon that represents the current state of this task. 928 * @param colorPrimary A color to override the theme's primary color. This color must be 929 * opaque. 930 */ 931 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 932 this(label, icon, null, colorPrimary, 0); 933 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 934 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 935 } 936 } 937 938 /** 939 * Creates the TaskDescription to the specified values. 940 * 941 * @param label A label and description of the current state of this activity. 942 * @param icon An icon that represents the current state of this activity. 943 */ 944 public TaskDescription(String label, Bitmap icon) { 945 this(label, icon, null, 0, 0); 946 } 947 948 /** 949 * Creates the TaskDescription to the specified values. 950 * 951 * @param label A label and description of the current state of this activity. 952 */ 953 public TaskDescription(String label) { 954 this(label, null, null, 0, 0); 955 } 956 957 /** 958 * Creates an empty TaskDescription. 959 */ 960 public TaskDescription() { 961 this(null, null, null, 0, 0); 962 } 963 964 /** @hide */ 965 public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary, 966 int colorBackground) { 967 mLabel = label; 968 mIcon = icon; 969 mIconFilename = iconFilename; 970 mColorPrimary = colorPrimary; 971 mColorBackground = colorBackground; 972 } 973 974 /** 975 * Creates a copy of another TaskDescription. 976 */ 977 public TaskDescription(TaskDescription td) { 978 copyFrom(td); 979 } 980 981 /** 982 * Copies this the values from another TaskDescription. 983 * @hide 984 */ 985 public void copyFrom(TaskDescription other) { 986 mLabel = other.mLabel; 987 mIcon = other.mIcon; 988 mIconFilename = other.mIconFilename; 989 mColorPrimary = other.mColorPrimary; 990 mColorBackground = other.mColorBackground; 991 } 992 993 private TaskDescription(Parcel source) { 994 readFromParcel(source); 995 } 996 997 /** 998 * Sets the label for this task description. 999 * @hide 1000 */ 1001 public void setLabel(String label) { 1002 mLabel = label; 1003 } 1004 1005 /** 1006 * Sets the primary color for this task description. 1007 * @hide 1008 */ 1009 public void setPrimaryColor(int primaryColor) { 1010 // Ensure that the given color is valid 1011 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1012 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1013 } 1014 mColorPrimary = primaryColor; 1015 } 1016 1017 /** 1018 * Sets the background color for this task description. 1019 * @hide 1020 */ 1021 public void setBackgroundColor(int backgroundColor) { 1022 // Ensure that the given color is valid 1023 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1024 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1025 } 1026 mColorBackground = backgroundColor; 1027 } 1028 1029 /** 1030 * Sets the icon for this task description. 1031 * @hide 1032 */ 1033 public void setIcon(Bitmap icon) { 1034 mIcon = icon; 1035 } 1036 1037 /** 1038 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1039 * bitmap. 1040 * @hide 1041 */ 1042 public void setIconFilename(String iconFilename) { 1043 mIconFilename = iconFilename; 1044 mIcon = null; 1045 } 1046 1047 /** 1048 * @return The label and description of the current state of this task. 1049 */ 1050 public String getLabel() { 1051 return mLabel; 1052 } 1053 1054 /** 1055 * @return The icon that represents the current state of this task. 1056 */ 1057 public Bitmap getIcon() { 1058 if (mIcon != null) { 1059 return mIcon; 1060 } 1061 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1062 } 1063 1064 /** @hide */ 1065 public String getIconFilename() { 1066 return mIconFilename; 1067 } 1068 1069 /** @hide */ 1070 public Bitmap getInMemoryIcon() { 1071 return mIcon; 1072 } 1073 1074 /** @hide */ 1075 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1076 if (iconFilename != null) { 1077 try { 1078 return ActivityManagerNative.getDefault().getTaskDescriptionIcon(iconFilename, 1079 userId); 1080 } catch (RemoteException e) { 1081 throw e.rethrowFromSystemServer(); 1082 } 1083 } 1084 return null; 1085 } 1086 1087 /** 1088 * @return The color override on the theme's primary color. 1089 */ 1090 public int getPrimaryColor() { 1091 return mColorPrimary; 1092 } 1093 1094 /** 1095 * @return The background color. 1096 * @hide 1097 */ 1098 public int getBackgroundColor() { 1099 return mColorBackground; 1100 } 1101 1102 /** @hide */ 1103 public void saveToXml(XmlSerializer out) throws IOException { 1104 if (mLabel != null) { 1105 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1106 } 1107 if (mColorPrimary != 0) { 1108 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1109 Integer.toHexString(mColorPrimary)); 1110 } 1111 if (mColorBackground != 0) { 1112 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1113 Integer.toHexString(mColorBackground)); 1114 } 1115 if (mIconFilename != null) { 1116 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 1117 } 1118 } 1119 1120 /** @hide */ 1121 public void restoreFromXml(String attrName, String attrValue) { 1122 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1123 setLabel(attrValue); 1124 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1125 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1126 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1127 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1128 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 1129 setIconFilename(attrValue); 1130 } 1131 } 1132 1133 @Override 1134 public int describeContents() { 1135 return 0; 1136 } 1137 1138 @Override 1139 public void writeToParcel(Parcel dest, int flags) { 1140 if (mLabel == null) { 1141 dest.writeInt(0); 1142 } else { 1143 dest.writeInt(1); 1144 dest.writeString(mLabel); 1145 } 1146 if (mIcon == null) { 1147 dest.writeInt(0); 1148 } else { 1149 dest.writeInt(1); 1150 mIcon.writeToParcel(dest, 0); 1151 } 1152 dest.writeInt(mColorPrimary); 1153 dest.writeInt(mColorBackground); 1154 if (mIconFilename == null) { 1155 dest.writeInt(0); 1156 } else { 1157 dest.writeInt(1); 1158 dest.writeString(mIconFilename); 1159 } 1160 } 1161 1162 public void readFromParcel(Parcel source) { 1163 mLabel = source.readInt() > 0 ? source.readString() : null; 1164 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1165 mColorPrimary = source.readInt(); 1166 mColorBackground = source.readInt(); 1167 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1168 } 1169 1170 public static final Creator<TaskDescription> CREATOR 1171 = new Creator<TaskDescription>() { 1172 public TaskDescription createFromParcel(Parcel source) { 1173 return new TaskDescription(source); 1174 } 1175 public TaskDescription[] newArray(int size) { 1176 return new TaskDescription[size]; 1177 } 1178 }; 1179 1180 @Override 1181 public String toString() { 1182 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1183 " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary + 1184 " colorBackground: " + mColorBackground; 1185 } 1186 } 1187 1188 /** 1189 * Information you can retrieve about tasks that the user has most recently 1190 * started or visited. 1191 */ 1192 public static class RecentTaskInfo implements Parcelable { 1193 /** 1194 * If this task is currently running, this is the identifier for it. 1195 * If it is not running, this will be -1. 1196 */ 1197 public int id; 1198 1199 /** 1200 * The true identifier of this task, valid even if it is not running. 1201 */ 1202 public int persistentId; 1203 1204 /** 1205 * The original Intent used to launch the task. You can use this 1206 * Intent to re-launch the task (if it is no longer running) or bring 1207 * the current task to the front. 1208 */ 1209 public Intent baseIntent; 1210 1211 /** 1212 * If this task was started from an alias, this is the actual 1213 * activity component that was initially started; the component of 1214 * the baseIntent in this case is the name of the actual activity 1215 * implementation that the alias referred to. Otherwise, this is null. 1216 */ 1217 public ComponentName origActivity; 1218 1219 /** 1220 * The actual activity component that started the task. 1221 * @hide 1222 */ 1223 @Nullable 1224 public ComponentName realActivity; 1225 1226 /** 1227 * Description of the task's last state. 1228 */ 1229 public CharSequence description; 1230 1231 /** 1232 * The id of the ActivityStack this Task was on most recently. 1233 * @hide 1234 */ 1235 public int stackId; 1236 1237 /** 1238 * The id of the user the task was running as. 1239 * @hide 1240 */ 1241 public int userId; 1242 1243 /** 1244 * The first time this task was active. 1245 * @hide 1246 */ 1247 public long firstActiveTime; 1248 1249 /** 1250 * The last time this task was active. 1251 * @hide 1252 */ 1253 public long lastActiveTime; 1254 1255 /** 1256 * The recent activity values for the highest activity in the stack to have set the values. 1257 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1258 */ 1259 public TaskDescription taskDescription; 1260 1261 /** 1262 * Task affiliation for grouping with other tasks. 1263 */ 1264 public int affiliatedTaskId; 1265 1266 /** 1267 * Task affiliation color of the source task with the affiliated task id. 1268 * 1269 * @hide 1270 */ 1271 public int affiliatedTaskColor; 1272 1273 /** 1274 * The component launched as the first activity in the task. 1275 * This can be considered the "application" of this task. 1276 */ 1277 public ComponentName baseActivity; 1278 1279 /** 1280 * The activity component at the top of the history stack of the task. 1281 * This is what the user is currently doing. 1282 */ 1283 public ComponentName topActivity; 1284 1285 /** 1286 * Number of activities in this task. 1287 */ 1288 public int numActivities; 1289 1290 /** 1291 * The bounds of the task. 1292 * @hide 1293 */ 1294 public Rect bounds; 1295 1296 /** 1297 * True if the task can go in the docked stack. 1298 * @hide 1299 */ 1300 public boolean isDockable; 1301 1302 public RecentTaskInfo() { 1303 } 1304 1305 @Override 1306 public int describeContents() { 1307 return 0; 1308 } 1309 1310 @Override 1311 public void writeToParcel(Parcel dest, int flags) { 1312 dest.writeInt(id); 1313 dest.writeInt(persistentId); 1314 if (baseIntent != null) { 1315 dest.writeInt(1); 1316 baseIntent.writeToParcel(dest, 0); 1317 } else { 1318 dest.writeInt(0); 1319 } 1320 ComponentName.writeToParcel(origActivity, dest); 1321 ComponentName.writeToParcel(realActivity, dest); 1322 TextUtils.writeToParcel(description, dest, 1323 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1324 if (taskDescription != null) { 1325 dest.writeInt(1); 1326 taskDescription.writeToParcel(dest, 0); 1327 } else { 1328 dest.writeInt(0); 1329 } 1330 dest.writeInt(stackId); 1331 dest.writeInt(userId); 1332 dest.writeLong(firstActiveTime); 1333 dest.writeLong(lastActiveTime); 1334 dest.writeInt(affiliatedTaskId); 1335 dest.writeInt(affiliatedTaskColor); 1336 ComponentName.writeToParcel(baseActivity, dest); 1337 ComponentName.writeToParcel(topActivity, dest); 1338 dest.writeInt(numActivities); 1339 if (bounds != null) { 1340 dest.writeInt(1); 1341 bounds.writeToParcel(dest, 0); 1342 } else { 1343 dest.writeInt(0); 1344 } 1345 dest.writeInt(isDockable ? 1 : 0); 1346 } 1347 1348 public void readFromParcel(Parcel source) { 1349 id = source.readInt(); 1350 persistentId = source.readInt(); 1351 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1352 origActivity = ComponentName.readFromParcel(source); 1353 realActivity = ComponentName.readFromParcel(source); 1354 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1355 taskDescription = source.readInt() > 0 ? 1356 TaskDescription.CREATOR.createFromParcel(source) : null; 1357 stackId = source.readInt(); 1358 userId = source.readInt(); 1359 firstActiveTime = source.readLong(); 1360 lastActiveTime = source.readLong(); 1361 affiliatedTaskId = source.readInt(); 1362 affiliatedTaskColor = source.readInt(); 1363 baseActivity = ComponentName.readFromParcel(source); 1364 topActivity = ComponentName.readFromParcel(source); 1365 numActivities = source.readInt(); 1366 bounds = source.readInt() > 0 ? 1367 Rect.CREATOR.createFromParcel(source) : null; 1368 isDockable = source.readInt() == 1; 1369 } 1370 1371 public static final Creator<RecentTaskInfo> CREATOR 1372 = new Creator<RecentTaskInfo>() { 1373 public RecentTaskInfo createFromParcel(Parcel source) { 1374 return new RecentTaskInfo(source); 1375 } 1376 public RecentTaskInfo[] newArray(int size) { 1377 return new RecentTaskInfo[size]; 1378 } 1379 }; 1380 1381 private RecentTaskInfo(Parcel source) { 1382 readFromParcel(source); 1383 } 1384 } 1385 1386 /** 1387 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1388 * that have set their 1389 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1390 */ 1391 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1392 1393 /** 1394 * Provides a list that does not contain any 1395 * recent tasks that currently are not available to the user. 1396 */ 1397 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1398 1399 /** 1400 * Provides a list that contains recent tasks for all 1401 * profiles of a user. 1402 * @hide 1403 */ 1404 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1405 1406 /** 1407 * Ignores all tasks that are on the home stack. 1408 * @hide 1409 */ 1410 public static final int RECENT_IGNORE_HOME_STACK_TASKS = 0x0008; 1411 1412 /** 1413 * Ignores the top task in the docked stack. 1414 * @hide 1415 */ 1416 public static final int RECENT_INGORE_DOCKED_STACK_TOP_TASK = 0x0010; 1417 1418 /** 1419 * Ignores all tasks that are on the pinned stack. 1420 * @hide 1421 */ 1422 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1423 1424 /** 1425 * <p></p>Return a list of the tasks that the user has recently launched, with 1426 * the most recent being first and older ones after in order. 1427 * 1428 * <p><b>Note: this method is only intended for debugging and presenting 1429 * task management user interfaces</b>. This should never be used for 1430 * core logic in an application, such as deciding between different 1431 * behaviors based on the information found here. Such uses are 1432 * <em>not</em> supported, and will likely break in the future. For 1433 * example, if multiple applications can be actively running at the 1434 * same time, assumptions made about the meaning of the data here for 1435 * purposes of control flow will be incorrect.</p> 1436 * 1437 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1438 * no longer available to third party applications: the introduction of 1439 * document-centric recents means 1440 * it can leak personal information to the caller. For backwards compatibility, 1441 * it will still return a small subset of its data: at least the caller's 1442 * own tasks (though see {@link #getAppTasks()} for the correct supported 1443 * way to retrieve that information), and possibly some other tasks 1444 * such as home that are known to not be sensitive. 1445 * 1446 * @param maxNum The maximum number of entries to return in the list. The 1447 * actual number returned may be smaller, depending on how many tasks the 1448 * user has started and the maximum number the system can remember. 1449 * @param flags Information about what to return. May be any combination 1450 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1451 * 1452 * @return Returns a list of RecentTaskInfo records describing each of 1453 * the recent tasks. 1454 */ 1455 @Deprecated 1456 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1457 throws SecurityException { 1458 try { 1459 return ActivityManagerNative.getDefault().getRecentTasks(maxNum, 1460 flags, UserHandle.myUserId()); 1461 } catch (RemoteException e) { 1462 throw e.rethrowFromSystemServer(); 1463 } 1464 } 1465 1466 /** 1467 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1468 * specific user. It requires holding 1469 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1470 * @param maxNum The maximum number of entries to return in the list. The 1471 * actual number returned may be smaller, depending on how many tasks the 1472 * user has started and the maximum number the system can remember. 1473 * @param flags Information about what to return. May be any combination 1474 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1475 * 1476 * @return Returns a list of RecentTaskInfo records describing each of 1477 * the recent tasks. Most recently activated tasks go first. 1478 * 1479 * @hide 1480 */ 1481 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1482 throws SecurityException { 1483 try { 1484 return ActivityManagerNative.getDefault().getRecentTasks(maxNum, 1485 flags, userId); 1486 } catch (RemoteException e) { 1487 throw e.rethrowFromSystemServer(); 1488 } 1489 } 1490 1491 /** 1492 * Information you can retrieve about a particular task that is currently 1493 * "running" in the system. Note that a running task does not mean the 1494 * given task actually has a process it is actively running in; it simply 1495 * means that the user has gone to it and never closed it, but currently 1496 * the system may have killed its process and is only holding on to its 1497 * last state in order to restart it when the user returns. 1498 */ 1499 public static class RunningTaskInfo implements Parcelable { 1500 /** 1501 * A unique identifier for this task. 1502 */ 1503 public int id; 1504 1505 /** 1506 * The stack that currently contains this task. 1507 * @hide 1508 */ 1509 public int stackId; 1510 1511 /** 1512 * The component launched as the first activity in the task. This can 1513 * be considered the "application" of this task. 1514 */ 1515 public ComponentName baseActivity; 1516 1517 /** 1518 * The activity component at the top of the history stack of the task. 1519 * This is what the user is currently doing. 1520 */ 1521 public ComponentName topActivity; 1522 1523 /** 1524 * Thumbnail representation of the task's current state. Currently 1525 * always null. 1526 */ 1527 public Bitmap thumbnail; 1528 1529 /** 1530 * Description of the task's current state. 1531 */ 1532 public CharSequence description; 1533 1534 /** 1535 * Number of activities in this task. 1536 */ 1537 public int numActivities; 1538 1539 /** 1540 * Number of activities that are currently running (not stopped 1541 * and persisted) in this task. 1542 */ 1543 public int numRunning; 1544 1545 /** 1546 * Last time task was run. For sorting. 1547 * @hide 1548 */ 1549 public long lastActiveTime; 1550 1551 /** 1552 * True if the task can go in the docked stack. 1553 * @hide 1554 */ 1555 public boolean isDockable; 1556 1557 public RunningTaskInfo() { 1558 } 1559 1560 public int describeContents() { 1561 return 0; 1562 } 1563 1564 public void writeToParcel(Parcel dest, int flags) { 1565 dest.writeInt(id); 1566 dest.writeInt(stackId); 1567 ComponentName.writeToParcel(baseActivity, dest); 1568 ComponentName.writeToParcel(topActivity, dest); 1569 if (thumbnail != null) { 1570 dest.writeInt(1); 1571 thumbnail.writeToParcel(dest, 0); 1572 } else { 1573 dest.writeInt(0); 1574 } 1575 TextUtils.writeToParcel(description, dest, 1576 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1577 dest.writeInt(numActivities); 1578 dest.writeInt(numRunning); 1579 dest.writeInt(isDockable ? 1 : 0); 1580 } 1581 1582 public void readFromParcel(Parcel source) { 1583 id = source.readInt(); 1584 stackId = source.readInt(); 1585 baseActivity = ComponentName.readFromParcel(source); 1586 topActivity = ComponentName.readFromParcel(source); 1587 if (source.readInt() != 0) { 1588 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1589 } else { 1590 thumbnail = null; 1591 } 1592 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1593 numActivities = source.readInt(); 1594 numRunning = source.readInt(); 1595 isDockable = source.readInt() != 0; 1596 } 1597 1598 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1599 public RunningTaskInfo createFromParcel(Parcel source) { 1600 return new RunningTaskInfo(source); 1601 } 1602 public RunningTaskInfo[] newArray(int size) { 1603 return new RunningTaskInfo[size]; 1604 } 1605 }; 1606 1607 private RunningTaskInfo(Parcel source) { 1608 readFromParcel(source); 1609 } 1610 } 1611 1612 /** 1613 * Get the list of tasks associated with the calling application. 1614 * 1615 * @return The list of tasks associated with the application making this call. 1616 * @throws SecurityException 1617 */ 1618 public List<ActivityManager.AppTask> getAppTasks() { 1619 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1620 List<IAppTask> appTasks; 1621 try { 1622 appTasks = ActivityManagerNative.getDefault().getAppTasks(mContext.getPackageName()); 1623 } catch (RemoteException e) { 1624 throw e.rethrowFromSystemServer(); 1625 } 1626 int numAppTasks = appTasks.size(); 1627 for (int i = 0; i < numAppTasks; i++) { 1628 tasks.add(new AppTask(appTasks.get(i))); 1629 } 1630 return tasks; 1631 } 1632 1633 /** 1634 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1635 * with {@link #addAppTask}. 1636 */ 1637 public Size getAppTaskThumbnailSize() { 1638 synchronized (this) { 1639 ensureAppTaskThumbnailSizeLocked(); 1640 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1641 } 1642 } 1643 1644 private void ensureAppTaskThumbnailSizeLocked() { 1645 if (mAppTaskThumbnailSize == null) { 1646 try { 1647 mAppTaskThumbnailSize = ActivityManagerNative.getDefault().getAppTaskThumbnailSize(); 1648 } catch (RemoteException e) { 1649 throw e.rethrowFromSystemServer(); 1650 } 1651 } 1652 } 1653 1654 /** 1655 * Add a new {@link AppTask} for the calling application. This will create a new 1656 * recents entry that is added to the <b>end</b> of all existing recents. 1657 * 1658 * @param activity The activity that is adding the entry. This is used to help determine 1659 * the context that the new recents entry will be in. 1660 * @param intent The Intent that describes the recents entry. This is the same Intent that 1661 * you would have used to launch the activity for it. In generally you will want to set 1662 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1663 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1664 * entry will exist without an activity, so it doesn't make sense to not retain it when 1665 * its activity disappears. The given Intent here also must have an explicit ComponentName 1666 * set on it. 1667 * @param description Optional additional description information. 1668 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1669 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1670 * recreated in your process, probably in a way you don't like, before the recents entry 1671 * is added. 1672 * 1673 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 1674 * most likely cause of failure is that there is no more room for more tasks for your app. 1675 */ 1676 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 1677 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 1678 Point size; 1679 synchronized (this) { 1680 ensureAppTaskThumbnailSizeLocked(); 1681 size = mAppTaskThumbnailSize; 1682 } 1683 final int tw = thumbnail.getWidth(); 1684 final int th = thumbnail.getHeight(); 1685 if (tw != size.x || th != size.y) { 1686 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 1687 1688 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 1689 float scale; 1690 float dx = 0, dy = 0; 1691 if (tw * size.x > size.y * th) { 1692 scale = (float) size.x / (float) th; 1693 dx = (size.y - tw * scale) * 0.5f; 1694 } else { 1695 scale = (float) size.y / (float) tw; 1696 dy = (size.x - th * scale) * 0.5f; 1697 } 1698 Matrix matrix = new Matrix(); 1699 matrix.setScale(scale, scale); 1700 matrix.postTranslate((int) (dx + 0.5f), 0); 1701 1702 Canvas canvas = new Canvas(bm); 1703 canvas.drawBitmap(thumbnail, matrix, null); 1704 canvas.setBitmap(null); 1705 1706 thumbnail = bm; 1707 } 1708 if (description == null) { 1709 description = new TaskDescription(); 1710 } 1711 try { 1712 return ActivityManagerNative.getDefault().addAppTask(activity.getActivityToken(), 1713 intent, description, thumbnail); 1714 } catch (RemoteException e) { 1715 throw e.rethrowFromSystemServer(); 1716 } 1717 } 1718 1719 /** 1720 * Return a list of the tasks that are currently running, with 1721 * the most recent being first and older ones after in order. Note that 1722 * "running" does not mean any of the task's code is currently loaded or 1723 * activity -- the task may have been frozen by the system, so that it 1724 * can be restarted in its previous state when next brought to the 1725 * foreground. 1726 * 1727 * <p><b>Note: this method is only intended for debugging and presenting 1728 * task management user interfaces</b>. This should never be used for 1729 * core logic in an application, such as deciding between different 1730 * behaviors based on the information found here. Such uses are 1731 * <em>not</em> supported, and will likely break in the future. For 1732 * example, if multiple applications can be actively running at the 1733 * same time, assumptions made about the meaning of the data here for 1734 * purposes of control flow will be incorrect.</p> 1735 * 1736 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 1737 * is no longer available to third party 1738 * applications: the introduction of document-centric recents means 1739 * it can leak person information to the caller. For backwards compatibility, 1740 * it will still retu rn a small subset of its data: at least the caller's 1741 * own tasks, and possibly some other tasks 1742 * such as home that are known to not be sensitive. 1743 * 1744 * @param maxNum The maximum number of entries to return in the list. The 1745 * actual number returned may be smaller, depending on how many tasks the 1746 * user has started. 1747 * 1748 * @return Returns a list of RunningTaskInfo records describing each of 1749 * the running tasks. 1750 */ 1751 @Deprecated 1752 public List<RunningTaskInfo> getRunningTasks(int maxNum) 1753 throws SecurityException { 1754 try { 1755 return ActivityManagerNative.getDefault().getTasks(maxNum, 0); 1756 } catch (RemoteException e) { 1757 throw e.rethrowFromSystemServer(); 1758 } 1759 } 1760 1761 /** 1762 * Completely remove the given task. 1763 * 1764 * @param taskId Identifier of the task to be removed. 1765 * @return Returns true if the given task was found and removed. 1766 * 1767 * @hide 1768 */ 1769 public boolean removeTask(int taskId) throws SecurityException { 1770 try { 1771 return ActivityManagerNative.getDefault().removeTask(taskId); 1772 } catch (RemoteException e) { 1773 throw e.rethrowFromSystemServer(); 1774 } 1775 } 1776 1777 /** 1778 * Metadata related to the {@link TaskThumbnail}. 1779 * 1780 * @hide 1781 */ 1782 public static class TaskThumbnailInfo implements Parcelable { 1783 /** @hide */ 1784 public static final String ATTR_TASK_THUMBNAILINFO_PREFIX = "task_thumbnailinfo_"; 1785 private static final String ATTR_TASK_WIDTH = 1786 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_width"; 1787 private static final String ATTR_TASK_HEIGHT = 1788 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_height"; 1789 private static final String ATTR_SCREEN_ORIENTATION = 1790 ATTR_TASK_THUMBNAILINFO_PREFIX + "screen_orientation"; 1791 1792 public int taskWidth; 1793 public int taskHeight; 1794 public int screenOrientation = Configuration.ORIENTATION_UNDEFINED; 1795 1796 public TaskThumbnailInfo() { 1797 // Do nothing 1798 } 1799 1800 private TaskThumbnailInfo(Parcel source) { 1801 readFromParcel(source); 1802 } 1803 1804 /** 1805 * Resets this info state to the initial state. 1806 * @hide 1807 */ 1808 public void reset() { 1809 taskWidth = 0; 1810 taskHeight = 0; 1811 screenOrientation = Configuration.ORIENTATION_UNDEFINED; 1812 } 1813 1814 /** 1815 * Copies from another ThumbnailInfo. 1816 */ 1817 public void copyFrom(TaskThumbnailInfo o) { 1818 taskWidth = o.taskWidth; 1819 taskHeight = o.taskHeight; 1820 screenOrientation = o.screenOrientation; 1821 } 1822 1823 /** @hide */ 1824 public void saveToXml(XmlSerializer out) throws IOException { 1825 out.attribute(null, ATTR_TASK_WIDTH, Integer.toString(taskWidth)); 1826 out.attribute(null, ATTR_TASK_HEIGHT, Integer.toString(taskHeight)); 1827 out.attribute(null, ATTR_SCREEN_ORIENTATION, Integer.toString(screenOrientation)); 1828 } 1829 1830 /** @hide */ 1831 public void restoreFromXml(String attrName, String attrValue) { 1832 if (ATTR_TASK_WIDTH.equals(attrName)) { 1833 taskWidth = Integer.parseInt(attrValue); 1834 } else if (ATTR_TASK_HEIGHT.equals(attrName)) { 1835 taskHeight = Integer.parseInt(attrValue); 1836 } else if (ATTR_SCREEN_ORIENTATION.equals(attrName)) { 1837 screenOrientation = Integer.parseInt(attrValue); 1838 } 1839 } 1840 1841 public int describeContents() { 1842 return 0; 1843 } 1844 1845 public void writeToParcel(Parcel dest, int flags) { 1846 dest.writeInt(taskWidth); 1847 dest.writeInt(taskHeight); 1848 dest.writeInt(screenOrientation); 1849 } 1850 1851 public void readFromParcel(Parcel source) { 1852 taskWidth = source.readInt(); 1853 taskHeight = source.readInt(); 1854 screenOrientation = source.readInt(); 1855 } 1856 1857 public static final Creator<TaskThumbnailInfo> CREATOR = new Creator<TaskThumbnailInfo>() { 1858 public TaskThumbnailInfo createFromParcel(Parcel source) { 1859 return new TaskThumbnailInfo(source); 1860 } 1861 public TaskThumbnailInfo[] newArray(int size) { 1862 return new TaskThumbnailInfo[size]; 1863 } 1864 }; 1865 } 1866 1867 /** @hide */ 1868 public static class TaskThumbnail implements Parcelable { 1869 public Bitmap mainThumbnail; 1870 public ParcelFileDescriptor thumbnailFileDescriptor; 1871 public TaskThumbnailInfo thumbnailInfo; 1872 1873 public TaskThumbnail() { 1874 } 1875 1876 private TaskThumbnail(Parcel source) { 1877 readFromParcel(source); 1878 } 1879 1880 public int describeContents() { 1881 if (thumbnailFileDescriptor != null) { 1882 return thumbnailFileDescriptor.describeContents(); 1883 } 1884 return 0; 1885 } 1886 1887 public void writeToParcel(Parcel dest, int flags) { 1888 if (mainThumbnail != null) { 1889 dest.writeInt(1); 1890 mainThumbnail.writeToParcel(dest, flags); 1891 } else { 1892 dest.writeInt(0); 1893 } 1894 if (thumbnailFileDescriptor != null) { 1895 dest.writeInt(1); 1896 thumbnailFileDescriptor.writeToParcel(dest, flags); 1897 } else { 1898 dest.writeInt(0); 1899 } 1900 if (thumbnailInfo != null) { 1901 dest.writeInt(1); 1902 thumbnailInfo.writeToParcel(dest, flags); 1903 } else { 1904 dest.writeInt(0); 1905 } 1906 } 1907 1908 public void readFromParcel(Parcel source) { 1909 if (source.readInt() != 0) { 1910 mainThumbnail = Bitmap.CREATOR.createFromParcel(source); 1911 } else { 1912 mainThumbnail = null; 1913 } 1914 if (source.readInt() != 0) { 1915 thumbnailFileDescriptor = ParcelFileDescriptor.CREATOR.createFromParcel(source); 1916 } else { 1917 thumbnailFileDescriptor = null; 1918 } 1919 if (source.readInt() != 0) { 1920 thumbnailInfo = TaskThumbnailInfo.CREATOR.createFromParcel(source); 1921 } else { 1922 thumbnailInfo = null; 1923 } 1924 } 1925 1926 public static final Creator<TaskThumbnail> CREATOR = new Creator<TaskThumbnail>() { 1927 public TaskThumbnail createFromParcel(Parcel source) { 1928 return new TaskThumbnail(source); 1929 } 1930 public TaskThumbnail[] newArray(int size) { 1931 return new TaskThumbnail[size]; 1932 } 1933 }; 1934 } 1935 1936 /** @hide */ 1937 public TaskThumbnail getTaskThumbnail(int id) throws SecurityException { 1938 try { 1939 return ActivityManagerNative.getDefault().getTaskThumbnail(id); 1940 } catch (RemoteException e) { 1941 throw e.rethrowFromSystemServer(); 1942 } 1943 } 1944 1945 /** @hide */ 1946 public boolean isInHomeStack(int taskId) { 1947 try { 1948 return ActivityManagerNative.getDefault().isInHomeStack(taskId); 1949 } catch (RemoteException e) { 1950 throw e.rethrowFromSystemServer(); 1951 } 1952 } 1953 1954 /** 1955 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 1956 * activity along with the task, so it is positioned immediately behind 1957 * the task. 1958 */ 1959 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 1960 1961 /** 1962 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 1963 * user-instigated action, so the current activity will not receive a 1964 * hint that the user is leaving. 1965 */ 1966 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 1967 1968 /** 1969 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 1970 * with a null options argument. 1971 * 1972 * @param taskId The identifier of the task to be moved, as found in 1973 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 1974 * @param flags Additional operational flags, 0 or more of 1975 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 1976 */ 1977 public void moveTaskToFront(int taskId, int flags) { 1978 moveTaskToFront(taskId, flags, null); 1979 } 1980 1981 /** 1982 * Ask that the task associated with a given task ID be moved to the 1983 * front of the stack, so it is now visible to the user. Requires that 1984 * the caller hold permission {@link android.Manifest.permission#REORDER_TASKS} 1985 * or a SecurityException will be thrown. 1986 * 1987 * @param taskId The identifier of the task to be moved, as found in 1988 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 1989 * @param flags Additional operational flags, 0 or more of 1990 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 1991 * @param options Additional options for the operation, either null or 1992 * as per {@link Context#startActivity(Intent, android.os.Bundle) 1993 * Context.startActivity(Intent, Bundle)}. 1994 */ 1995 public void moveTaskToFront(int taskId, int flags, Bundle options) { 1996 try { 1997 ActivityManagerNative.getDefault().moveTaskToFront(taskId, flags, options); 1998 } catch (RemoteException e) { 1999 throw e.rethrowFromSystemServer(); 2000 } 2001 } 2002 2003 /** 2004 * Information you can retrieve about a particular Service that is 2005 * currently running in the system. 2006 */ 2007 public static class RunningServiceInfo implements Parcelable { 2008 /** 2009 * The service component. 2010 */ 2011 public ComponentName service; 2012 2013 /** 2014 * If non-zero, this is the process the service is running in. 2015 */ 2016 public int pid; 2017 2018 /** 2019 * The UID that owns this service. 2020 */ 2021 public int uid; 2022 2023 /** 2024 * The name of the process this service runs in. 2025 */ 2026 public String process; 2027 2028 /** 2029 * Set to true if the service has asked to run as a foreground process. 2030 */ 2031 public boolean foreground; 2032 2033 /** 2034 * The time when the service was first made active, either by someone 2035 * starting or binding to it. This 2036 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2037 */ 2038 public long activeSince; 2039 2040 /** 2041 * Set to true if this service has been explicitly started. 2042 */ 2043 public boolean started; 2044 2045 /** 2046 * Number of clients connected to the service. 2047 */ 2048 public int clientCount; 2049 2050 /** 2051 * Number of times the service's process has crashed while the service 2052 * is running. 2053 */ 2054 public int crashCount; 2055 2056 /** 2057 * The time when there was last activity in the service (either 2058 * explicit requests to start it or clients binding to it). This 2059 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2060 */ 2061 public long lastActivityTime; 2062 2063 /** 2064 * If non-zero, this service is not currently running, but scheduled to 2065 * restart at the given time. 2066 */ 2067 public long restarting; 2068 2069 /** 2070 * Bit for {@link #flags}: set if this service has been 2071 * explicitly started. 2072 */ 2073 public static final int FLAG_STARTED = 1<<0; 2074 2075 /** 2076 * Bit for {@link #flags}: set if the service has asked to 2077 * run as a foreground process. 2078 */ 2079 public static final int FLAG_FOREGROUND = 1<<1; 2080 2081 /** 2082 * Bit for {@link #flags): set if the service is running in a 2083 * core system process. 2084 */ 2085 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2086 2087 /** 2088 * Bit for {@link #flags): set if the service is running in a 2089 * persistent process. 2090 */ 2091 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2092 2093 /** 2094 * Running flags. 2095 */ 2096 public int flags; 2097 2098 /** 2099 * For special services that are bound to by system code, this is 2100 * the package that holds the binding. 2101 */ 2102 public String clientPackage; 2103 2104 /** 2105 * For special services that are bound to by system code, this is 2106 * a string resource providing a user-visible label for who the 2107 * client is. 2108 */ 2109 public int clientLabel; 2110 2111 public RunningServiceInfo() { 2112 } 2113 2114 public int describeContents() { 2115 return 0; 2116 } 2117 2118 public void writeToParcel(Parcel dest, int flags) { 2119 ComponentName.writeToParcel(service, dest); 2120 dest.writeInt(pid); 2121 dest.writeInt(uid); 2122 dest.writeString(process); 2123 dest.writeInt(foreground ? 1 : 0); 2124 dest.writeLong(activeSince); 2125 dest.writeInt(started ? 1 : 0); 2126 dest.writeInt(clientCount); 2127 dest.writeInt(crashCount); 2128 dest.writeLong(lastActivityTime); 2129 dest.writeLong(restarting); 2130 dest.writeInt(this.flags); 2131 dest.writeString(clientPackage); 2132 dest.writeInt(clientLabel); 2133 } 2134 2135 public void readFromParcel(Parcel source) { 2136 service = ComponentName.readFromParcel(source); 2137 pid = source.readInt(); 2138 uid = source.readInt(); 2139 process = source.readString(); 2140 foreground = source.readInt() != 0; 2141 activeSince = source.readLong(); 2142 started = source.readInt() != 0; 2143 clientCount = source.readInt(); 2144 crashCount = source.readInt(); 2145 lastActivityTime = source.readLong(); 2146 restarting = source.readLong(); 2147 flags = source.readInt(); 2148 clientPackage = source.readString(); 2149 clientLabel = source.readInt(); 2150 } 2151 2152 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2153 public RunningServiceInfo createFromParcel(Parcel source) { 2154 return new RunningServiceInfo(source); 2155 } 2156 public RunningServiceInfo[] newArray(int size) { 2157 return new RunningServiceInfo[size]; 2158 } 2159 }; 2160 2161 private RunningServiceInfo(Parcel source) { 2162 readFromParcel(source); 2163 } 2164 } 2165 2166 /** 2167 * Return a list of the services that are currently running. 2168 * 2169 * <p><b>Note: this method is only intended for debugging or implementing 2170 * service management type user interfaces.</b></p> 2171 * 2172 * @param maxNum The maximum number of entries to return in the list. The 2173 * actual number returned may be smaller, depending on how many services 2174 * are running. 2175 * 2176 * @return Returns a list of RunningServiceInfo records describing each of 2177 * the running tasks. 2178 */ 2179 public List<RunningServiceInfo> getRunningServices(int maxNum) 2180 throws SecurityException { 2181 try { 2182 return ActivityManagerNative.getDefault() 2183 .getServices(maxNum, 0); 2184 } catch (RemoteException e) { 2185 throw e.rethrowFromSystemServer(); 2186 } 2187 } 2188 2189 /** 2190 * Returns a PendingIntent you can start to show a control panel for the 2191 * given running service. If the service does not have a control panel, 2192 * null is returned. 2193 */ 2194 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2195 throws SecurityException { 2196 try { 2197 return ActivityManagerNative.getDefault() 2198 .getRunningServiceControlPanel(service); 2199 } catch (RemoteException e) { 2200 throw e.rethrowFromSystemServer(); 2201 } 2202 } 2203 2204 /** 2205 * Information you can retrieve about the available memory through 2206 * {@link ActivityManager#getMemoryInfo}. 2207 */ 2208 public static class MemoryInfo implements Parcelable { 2209 /** 2210 * The available memory on the system. This number should not 2211 * be considered absolute: due to the nature of the kernel, a significant 2212 * portion of this memory is actually in use and needed for the overall 2213 * system to run well. 2214 */ 2215 public long availMem; 2216 2217 /** 2218 * The total memory accessible by the kernel. This is basically the 2219 * RAM size of the device, not including below-kernel fixed allocations 2220 * like DMA buffers, RAM for the baseband CPU, etc. 2221 */ 2222 public long totalMem; 2223 2224 /** 2225 * The threshold of {@link #availMem} at which we consider memory to be 2226 * low and start killing background services and other non-extraneous 2227 * processes. 2228 */ 2229 public long threshold; 2230 2231 /** 2232 * Set to true if the system considers itself to currently be in a low 2233 * memory situation. 2234 */ 2235 public boolean lowMemory; 2236 2237 /** @hide */ 2238 public long hiddenAppThreshold; 2239 /** @hide */ 2240 public long secondaryServerThreshold; 2241 /** @hide */ 2242 public long visibleAppThreshold; 2243 /** @hide */ 2244 public long foregroundAppThreshold; 2245 2246 public MemoryInfo() { 2247 } 2248 2249 public int describeContents() { 2250 return 0; 2251 } 2252 2253 public void writeToParcel(Parcel dest, int flags) { 2254 dest.writeLong(availMem); 2255 dest.writeLong(totalMem); 2256 dest.writeLong(threshold); 2257 dest.writeInt(lowMemory ? 1 : 0); 2258 dest.writeLong(hiddenAppThreshold); 2259 dest.writeLong(secondaryServerThreshold); 2260 dest.writeLong(visibleAppThreshold); 2261 dest.writeLong(foregroundAppThreshold); 2262 } 2263 2264 public void readFromParcel(Parcel source) { 2265 availMem = source.readLong(); 2266 totalMem = source.readLong(); 2267 threshold = source.readLong(); 2268 lowMemory = source.readInt() != 0; 2269 hiddenAppThreshold = source.readLong(); 2270 secondaryServerThreshold = source.readLong(); 2271 visibleAppThreshold = source.readLong(); 2272 foregroundAppThreshold = source.readLong(); 2273 } 2274 2275 public static final Creator<MemoryInfo> CREATOR 2276 = new Creator<MemoryInfo>() { 2277 public MemoryInfo createFromParcel(Parcel source) { 2278 return new MemoryInfo(source); 2279 } 2280 public MemoryInfo[] newArray(int size) { 2281 return new MemoryInfo[size]; 2282 } 2283 }; 2284 2285 private MemoryInfo(Parcel source) { 2286 readFromParcel(source); 2287 } 2288 } 2289 2290 /** 2291 * Return general information about the memory state of the system. This 2292 * can be used to help decide how to manage your own memory, though note 2293 * that polling is not recommended and 2294 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2295 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2296 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2297 * level of your process as needed, which gives a better hint for how to 2298 * manage its memory. 2299 */ 2300 public void getMemoryInfo(MemoryInfo outInfo) { 2301 try { 2302 ActivityManagerNative.getDefault().getMemoryInfo(outInfo); 2303 } catch (RemoteException e) { 2304 throw e.rethrowFromSystemServer(); 2305 } 2306 } 2307 2308 /** 2309 * Information you can retrieve about an ActivityStack in the system. 2310 * @hide 2311 */ 2312 public static class StackInfo implements Parcelable { 2313 public int stackId; 2314 public Rect bounds = new Rect(); 2315 public int[] taskIds; 2316 public String[] taskNames; 2317 public Rect[] taskBounds; 2318 public int[] taskUserIds; 2319 public int displayId; 2320 public int userId; 2321 2322 @Override 2323 public int describeContents() { 2324 return 0; 2325 } 2326 2327 @Override 2328 public void writeToParcel(Parcel dest, int flags) { 2329 dest.writeInt(stackId); 2330 dest.writeInt(bounds.left); 2331 dest.writeInt(bounds.top); 2332 dest.writeInt(bounds.right); 2333 dest.writeInt(bounds.bottom); 2334 dest.writeIntArray(taskIds); 2335 dest.writeStringArray(taskNames); 2336 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2337 dest.writeInt(boundsCount); 2338 for (int i = 0; i < boundsCount; i++) { 2339 dest.writeInt(taskBounds[i].left); 2340 dest.writeInt(taskBounds[i].top); 2341 dest.writeInt(taskBounds[i].right); 2342 dest.writeInt(taskBounds[i].bottom); 2343 } 2344 dest.writeIntArray(taskUserIds); 2345 dest.writeInt(displayId); 2346 dest.writeInt(userId); 2347 } 2348 2349 public void readFromParcel(Parcel source) { 2350 stackId = source.readInt(); 2351 bounds = new Rect( 2352 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2353 taskIds = source.createIntArray(); 2354 taskNames = source.createStringArray(); 2355 final int boundsCount = source.readInt(); 2356 if (boundsCount > 0) { 2357 taskBounds = new Rect[boundsCount]; 2358 for (int i = 0; i < boundsCount; i++) { 2359 taskBounds[i] = new Rect(); 2360 taskBounds[i].set( 2361 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2362 } 2363 } else { 2364 taskBounds = null; 2365 } 2366 taskUserIds = source.createIntArray(); 2367 displayId = source.readInt(); 2368 userId = source.readInt(); 2369 } 2370 2371 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2372 @Override 2373 public StackInfo createFromParcel(Parcel source) { 2374 return new StackInfo(source); 2375 } 2376 @Override 2377 public StackInfo[] newArray(int size) { 2378 return new StackInfo[size]; 2379 } 2380 }; 2381 2382 public StackInfo() { 2383 } 2384 2385 private StackInfo(Parcel source) { 2386 readFromParcel(source); 2387 } 2388 2389 public String toString(String prefix) { 2390 StringBuilder sb = new StringBuilder(256); 2391 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2392 sb.append(" bounds="); sb.append(bounds.toShortString()); 2393 sb.append(" displayId="); sb.append(displayId); 2394 sb.append(" userId="); sb.append(userId); 2395 sb.append("\n"); 2396 prefix = prefix + " "; 2397 for (int i = 0; i < taskIds.length; ++i) { 2398 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2399 sb.append(": "); sb.append(taskNames[i]); 2400 if (taskBounds != null) { 2401 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2402 } 2403 sb.append(" userId=").append(taskUserIds[i]); 2404 sb.append("\n"); 2405 } 2406 return sb.toString(); 2407 } 2408 2409 @Override 2410 public String toString() { 2411 return toString(""); 2412 } 2413 } 2414 2415 /** 2416 * @hide 2417 */ 2418 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2419 try { 2420 return ActivityManagerNative.getDefault().clearApplicationUserData(packageName, 2421 observer, UserHandle.myUserId()); 2422 } catch (RemoteException e) { 2423 throw e.rethrowFromSystemServer(); 2424 } 2425 } 2426 2427 /** 2428 * Permits an application to erase its own data from disk. This is equivalent to 2429 * the user choosing to clear the app's data from within the device settings UI. It 2430 * erases all dynamic data associated with the app -- its private data and data in its 2431 * private area on external storage -- but does not remove the installed application 2432 * itself, nor any OBB files. 2433 * 2434 * @return {@code true} if the application successfully requested that the application's 2435 * data be erased; {@code false} otherwise. 2436 */ 2437 public boolean clearApplicationUserData() { 2438 return clearApplicationUserData(mContext.getPackageName(), null); 2439 } 2440 2441 2442 /** 2443 * Permits an application to get the persistent URI permissions granted to another. 2444 * 2445 * <p>Typically called by Settings. 2446 * 2447 * @param packageName application to look for the granted permissions 2448 * @return list of granted URI permissions 2449 * 2450 * @hide 2451 */ 2452 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2453 try { 2454 return ActivityManagerNative.getDefault().getGrantedUriPermissions(packageName, 2455 UserHandle.myUserId()); 2456 } catch (RemoteException e) { 2457 throw e.rethrowFromSystemServer(); 2458 } 2459 } 2460 2461 /** 2462 * Permits an application to clear the persistent URI permissions granted to another. 2463 * 2464 * <p>Typically called by Settings. 2465 * 2466 * @param packageName application to clear its granted permissions 2467 * 2468 * @hide 2469 */ 2470 public void clearGrantedUriPermissions(String packageName) { 2471 try { 2472 ActivityManagerNative.getDefault().clearGrantedUriPermissions(packageName, 2473 UserHandle.myUserId()); 2474 } catch (RemoteException e) { 2475 throw e.rethrowFromSystemServer(); 2476 } 2477 } 2478 2479 /** 2480 * Information you can retrieve about any processes that are in an error condition. 2481 */ 2482 public static class ProcessErrorStateInfo implements Parcelable { 2483 /** 2484 * Condition codes 2485 */ 2486 public static final int NO_ERROR = 0; 2487 public static final int CRASHED = 1; 2488 public static final int NOT_RESPONDING = 2; 2489 2490 /** 2491 * The condition that the process is in. 2492 */ 2493 public int condition; 2494 2495 /** 2496 * The process name in which the crash or error occurred. 2497 */ 2498 public String processName; 2499 2500 /** 2501 * The pid of this process; 0 if none 2502 */ 2503 public int pid; 2504 2505 /** 2506 * The kernel user-ID that has been assigned to this process; 2507 * currently this is not a unique ID (multiple applications can have 2508 * the same uid). 2509 */ 2510 public int uid; 2511 2512 /** 2513 * The activity name associated with the error, if known. May be null. 2514 */ 2515 public String tag; 2516 2517 /** 2518 * A short message describing the error condition. 2519 */ 2520 public String shortMsg; 2521 2522 /** 2523 * A long message describing the error condition. 2524 */ 2525 public String longMsg; 2526 2527 /** 2528 * The stack trace where the error originated. May be null. 2529 */ 2530 public String stackTrace; 2531 2532 /** 2533 * to be deprecated: This value will always be null. 2534 */ 2535 public byte[] crashData = null; 2536 2537 public ProcessErrorStateInfo() { 2538 } 2539 2540 @Override 2541 public int describeContents() { 2542 return 0; 2543 } 2544 2545 @Override 2546 public void writeToParcel(Parcel dest, int flags) { 2547 dest.writeInt(condition); 2548 dest.writeString(processName); 2549 dest.writeInt(pid); 2550 dest.writeInt(uid); 2551 dest.writeString(tag); 2552 dest.writeString(shortMsg); 2553 dest.writeString(longMsg); 2554 dest.writeString(stackTrace); 2555 } 2556 2557 public void readFromParcel(Parcel source) { 2558 condition = source.readInt(); 2559 processName = source.readString(); 2560 pid = source.readInt(); 2561 uid = source.readInt(); 2562 tag = source.readString(); 2563 shortMsg = source.readString(); 2564 longMsg = source.readString(); 2565 stackTrace = source.readString(); 2566 } 2567 2568 public static final Creator<ProcessErrorStateInfo> CREATOR = 2569 new Creator<ProcessErrorStateInfo>() { 2570 public ProcessErrorStateInfo createFromParcel(Parcel source) { 2571 return new ProcessErrorStateInfo(source); 2572 } 2573 public ProcessErrorStateInfo[] newArray(int size) { 2574 return new ProcessErrorStateInfo[size]; 2575 } 2576 }; 2577 2578 private ProcessErrorStateInfo(Parcel source) { 2579 readFromParcel(source); 2580 } 2581 } 2582 2583 /** 2584 * Returns a list of any processes that are currently in an error condition. The result 2585 * will be null if all processes are running properly at this time. 2586 * 2587 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 2588 * current error conditions (it will not return an empty list). This list ordering is not 2589 * specified. 2590 */ 2591 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 2592 try { 2593 return ActivityManagerNative.getDefault().getProcessesInErrorState(); 2594 } catch (RemoteException e) { 2595 throw e.rethrowFromSystemServer(); 2596 } 2597 } 2598 2599 /** 2600 * Information you can retrieve about a running process. 2601 */ 2602 public static class RunningAppProcessInfo implements Parcelable { 2603 /** 2604 * The name of the process that this object is associated with 2605 */ 2606 public String processName; 2607 2608 /** 2609 * The pid of this process; 0 if none 2610 */ 2611 public int pid; 2612 2613 /** 2614 * The user id of this process. 2615 */ 2616 public int uid; 2617 2618 /** 2619 * All packages that have been loaded into the process. 2620 */ 2621 public String pkgList[]; 2622 2623 /** 2624 * Constant for {@link #flags}: this is an app that is unable to 2625 * correctly save its state when going to the background, 2626 * so it can not be killed while in the background. 2627 * @hide 2628 */ 2629 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 2630 2631 /** 2632 * Constant for {@link #flags}: this process is associated with a 2633 * persistent system app. 2634 * @hide 2635 */ 2636 public static final int FLAG_PERSISTENT = 1<<1; 2637 2638 /** 2639 * Constant for {@link #flags}: this process is associated with a 2640 * persistent system app. 2641 * @hide 2642 */ 2643 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 2644 2645 /** 2646 * Flags of information. May be any of 2647 * {@link #FLAG_CANT_SAVE_STATE}. 2648 * @hide 2649 */ 2650 public int flags; 2651 2652 /** 2653 * Last memory trim level reported to the process: corresponds to 2654 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2655 * ComponentCallbacks2.onTrimMemory(int)}. 2656 */ 2657 public int lastTrimLevel; 2658 2659 /** 2660 * Constant for {@link #importance}: This process is running the 2661 * foreground UI; that is, it is the thing currently at the top of the screen 2662 * that the user is interacting with. 2663 */ 2664 public static final int IMPORTANCE_FOREGROUND = 100; 2665 2666 /** 2667 * Constant for {@link #importance}: This process is running a foreground 2668 * service, for example to perform music playback even while the user is 2669 * not immediately in the app. This generally indicates that the process 2670 * is doing something the user actively cares about. 2671 */ 2672 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 2673 2674 /** 2675 * Constant for {@link #importance}: This process is running the foreground 2676 * UI, but the device is asleep so it is not visible to the user. This means 2677 * the user is not really aware of the process, because they can not see or 2678 * interact with it, but it is quite important because it what they expect to 2679 * return to once unlocking the device. 2680 */ 2681 public static final int IMPORTANCE_TOP_SLEEPING = 150; 2682 2683 /** 2684 * Constant for {@link #importance}: This process is running something 2685 * that is actively visible to the user, though not in the immediate 2686 * foreground. This may be running a window that is behind the current 2687 * foreground (so paused and with its state saved, not interacting with 2688 * the user, but visible to them to some degree); it may also be running 2689 * other services under the system's control that it inconsiders important. 2690 */ 2691 public static final int IMPORTANCE_VISIBLE = 200; 2692 2693 /** 2694 * Constant for {@link #importance}: This process is not something the user 2695 * is directly aware of, but is otherwise perceptable to them to some degree. 2696 */ 2697 public static final int IMPORTANCE_PERCEPTIBLE = 130; 2698 2699 /** 2700 * Constant for {@link #importance}: This process is running an 2701 * application that can not save its state, and thus can't be killed 2702 * while in the background. 2703 * @hide 2704 */ 2705 public static final int IMPORTANCE_CANT_SAVE_STATE = 170; 2706 2707 /** 2708 * Constant for {@link #importance}: This process is contains services 2709 * that should remain running. These are background services apps have 2710 * started, not something the user is aware of, so they may be killed by 2711 * the system relatively freely (though it is generally desired that they 2712 * stay running as long as they want to). 2713 */ 2714 public static final int IMPORTANCE_SERVICE = 300; 2715 2716 /** 2717 * Constant for {@link #importance}: This process process contains 2718 * background code that is expendable. 2719 */ 2720 public static final int IMPORTANCE_BACKGROUND = 400; 2721 2722 /** 2723 * Constant for {@link #importance}: This process is empty of any 2724 * actively running code. 2725 */ 2726 public static final int IMPORTANCE_EMPTY = 500; 2727 2728 /** 2729 * Constant for {@link #importance}: This process does not exist. 2730 */ 2731 public static final int IMPORTANCE_GONE = 1000; 2732 2733 /** @hide */ 2734 public static int procStateToImportance(int procState) { 2735 if (procState == PROCESS_STATE_NONEXISTENT) { 2736 return IMPORTANCE_GONE; 2737 } else if (procState >= PROCESS_STATE_HOME) { 2738 return IMPORTANCE_BACKGROUND; 2739 } else if (procState >= PROCESS_STATE_SERVICE) { 2740 return IMPORTANCE_SERVICE; 2741 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 2742 return IMPORTANCE_CANT_SAVE_STATE; 2743 } else if (procState >= PROCESS_STATE_IMPORTANT_BACKGROUND) { 2744 return IMPORTANCE_PERCEPTIBLE; 2745 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 2746 return IMPORTANCE_VISIBLE; 2747 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 2748 return IMPORTANCE_TOP_SLEEPING; 2749 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 2750 return IMPORTANCE_FOREGROUND_SERVICE; 2751 } else { 2752 return IMPORTANCE_FOREGROUND; 2753 } 2754 } 2755 2756 /** 2757 * The relative importance level that the system places on this 2758 * process. May be one of {@link #IMPORTANCE_FOREGROUND}, 2759 * {@link #IMPORTANCE_VISIBLE}, {@link #IMPORTANCE_SERVICE}, 2760 * {@link #IMPORTANCE_BACKGROUND}, or {@link #IMPORTANCE_EMPTY}. These 2761 * constants are numbered so that "more important" values are always 2762 * smaller than "less important" values. 2763 */ 2764 public int importance; 2765 2766 /** 2767 * An additional ordering within a particular {@link #importance} 2768 * category, providing finer-grained information about the relative 2769 * utility of processes within a category. This number means nothing 2770 * except that a smaller values are more recently used (and thus 2771 * more important). Currently an LRU value is only maintained for 2772 * the {@link #IMPORTANCE_BACKGROUND} category, though others may 2773 * be maintained in the future. 2774 */ 2775 public int lru; 2776 2777 /** 2778 * Constant for {@link #importanceReasonCode}: nothing special has 2779 * been specified for the reason for this level. 2780 */ 2781 public static final int REASON_UNKNOWN = 0; 2782 2783 /** 2784 * Constant for {@link #importanceReasonCode}: one of the application's 2785 * content providers is being used by another process. The pid of 2786 * the client process is in {@link #importanceReasonPid} and the 2787 * target provider in this process is in 2788 * {@link #importanceReasonComponent}. 2789 */ 2790 public static final int REASON_PROVIDER_IN_USE = 1; 2791 2792 /** 2793 * Constant for {@link #importanceReasonCode}: one of the application's 2794 * content providers is being used by another process. The pid of 2795 * the client process is in {@link #importanceReasonPid} and the 2796 * target provider in this process is in 2797 * {@link #importanceReasonComponent}. 2798 */ 2799 public static final int REASON_SERVICE_IN_USE = 2; 2800 2801 /** 2802 * The reason for {@link #importance}, if any. 2803 */ 2804 public int importanceReasonCode; 2805 2806 /** 2807 * For the specified values of {@link #importanceReasonCode}, this 2808 * is the process ID of the other process that is a client of this 2809 * process. This will be 0 if no other process is using this one. 2810 */ 2811 public int importanceReasonPid; 2812 2813 /** 2814 * For the specified values of {@link #importanceReasonCode}, this 2815 * is the name of the component that is being used in this process. 2816 */ 2817 public ComponentName importanceReasonComponent; 2818 2819 /** 2820 * When {@link #importanceReasonPid} is non-0, this is the importance 2821 * of the other pid. @hide 2822 */ 2823 public int importanceReasonImportance; 2824 2825 /** 2826 * Current process state, as per PROCESS_STATE_* constants. 2827 * @hide 2828 */ 2829 public int processState; 2830 2831 public RunningAppProcessInfo() { 2832 importance = IMPORTANCE_FOREGROUND; 2833 importanceReasonCode = REASON_UNKNOWN; 2834 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 2835 } 2836 2837 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 2838 processName = pProcessName; 2839 pid = pPid; 2840 pkgList = pArr; 2841 } 2842 2843 public int describeContents() { 2844 return 0; 2845 } 2846 2847 public void writeToParcel(Parcel dest, int flags) { 2848 dest.writeString(processName); 2849 dest.writeInt(pid); 2850 dest.writeInt(uid); 2851 dest.writeStringArray(pkgList); 2852 dest.writeInt(this.flags); 2853 dest.writeInt(lastTrimLevel); 2854 dest.writeInt(importance); 2855 dest.writeInt(lru); 2856 dest.writeInt(importanceReasonCode); 2857 dest.writeInt(importanceReasonPid); 2858 ComponentName.writeToParcel(importanceReasonComponent, dest); 2859 dest.writeInt(importanceReasonImportance); 2860 dest.writeInt(processState); 2861 } 2862 2863 public void readFromParcel(Parcel source) { 2864 processName = source.readString(); 2865 pid = source.readInt(); 2866 uid = source.readInt(); 2867 pkgList = source.readStringArray(); 2868 flags = source.readInt(); 2869 lastTrimLevel = source.readInt(); 2870 importance = source.readInt(); 2871 lru = source.readInt(); 2872 importanceReasonCode = source.readInt(); 2873 importanceReasonPid = source.readInt(); 2874 importanceReasonComponent = ComponentName.readFromParcel(source); 2875 importanceReasonImportance = source.readInt(); 2876 processState = source.readInt(); 2877 } 2878 2879 public static final Creator<RunningAppProcessInfo> CREATOR = 2880 new Creator<RunningAppProcessInfo>() { 2881 public RunningAppProcessInfo createFromParcel(Parcel source) { 2882 return new RunningAppProcessInfo(source); 2883 } 2884 public RunningAppProcessInfo[] newArray(int size) { 2885 return new RunningAppProcessInfo[size]; 2886 } 2887 }; 2888 2889 private RunningAppProcessInfo(Parcel source) { 2890 readFromParcel(source); 2891 } 2892 } 2893 2894 /** 2895 * Returns a list of application processes installed on external media 2896 * that are running on the device. 2897 * 2898 * <p><b>Note: this method is only intended for debugging or building 2899 * a user-facing process management UI.</b></p> 2900 * 2901 * @return Returns a list of ApplicationInfo records, or null if none 2902 * This list ordering is not specified. 2903 * @hide 2904 */ 2905 public List<ApplicationInfo> getRunningExternalApplications() { 2906 try { 2907 return ActivityManagerNative.getDefault().getRunningExternalApplications(); 2908 } catch (RemoteException e) { 2909 throw e.rethrowFromSystemServer(); 2910 } 2911 } 2912 2913 /** 2914 * Sets the memory trim mode for a process and schedules a memory trim operation. 2915 * 2916 * <p><b>Note: this method is only intended for testing framework.</b></p> 2917 * 2918 * @return Returns true if successful. 2919 * @hide 2920 */ 2921 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 2922 try { 2923 return ActivityManagerNative.getDefault().setProcessMemoryTrimLevel(process, userId, 2924 level); 2925 } catch (RemoteException e) { 2926 throw e.rethrowFromSystemServer(); 2927 } 2928 } 2929 2930 /** 2931 * Returns a list of application processes that are running on the device. 2932 * 2933 * <p><b>Note: this method is only intended for debugging or building 2934 * a user-facing process management UI.</b></p> 2935 * 2936 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 2937 * running processes (it will not return an empty list). This list ordering is not 2938 * specified. 2939 */ 2940 public List<RunningAppProcessInfo> getRunningAppProcesses() { 2941 try { 2942 return ActivityManagerNative.getDefault().getRunningAppProcesses(); 2943 } catch (RemoteException e) { 2944 throw e.rethrowFromSystemServer(); 2945 } 2946 } 2947 2948 /** 2949 * Return the importance of a given package name, based on the processes that are 2950 * currently running. The return value is one of the importance constants defined 2951 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 2952 * processes that this package has code running inside of. If there are no processes 2953 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 2954 * @hide 2955 */ 2956 @SystemApi 2957 public int getPackageImportance(String packageName) { 2958 try { 2959 int procState = ActivityManagerNative.getDefault().getPackageProcessState(packageName, 2960 mContext.getOpPackageName()); 2961 return RunningAppProcessInfo.procStateToImportance(procState); 2962 } catch (RemoteException e) { 2963 throw e.rethrowFromSystemServer(); 2964 } 2965 } 2966 2967 /** 2968 * Return global memory state information for the calling process. This 2969 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 2970 * only fields that will be filled in are 2971 * {@link RunningAppProcessInfo#pid}, 2972 * {@link RunningAppProcessInfo#uid}, 2973 * {@link RunningAppProcessInfo#lastTrimLevel}, 2974 * {@link RunningAppProcessInfo#importance}, 2975 * {@link RunningAppProcessInfo#lru}, and 2976 * {@link RunningAppProcessInfo#importanceReasonCode}. 2977 */ 2978 static public void getMyMemoryState(RunningAppProcessInfo outState) { 2979 try { 2980 ActivityManagerNative.getDefault().getMyMemoryState(outState); 2981 } catch (RemoteException e) { 2982 throw e.rethrowFromSystemServer(); 2983 } 2984 } 2985 2986 /** 2987 * Return information about the memory usage of one or more processes. 2988 * 2989 * <p><b>Note: this method is only intended for debugging or building 2990 * a user-facing process management UI.</b></p> 2991 * 2992 * @param pids The pids of the processes whose memory usage is to be 2993 * retrieved. 2994 * @return Returns an array of memory information, one for each 2995 * requested pid. 2996 */ 2997 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 2998 try { 2999 return ActivityManagerNative.getDefault().getProcessMemoryInfo(pids); 3000 } catch (RemoteException e) { 3001 throw e.rethrowFromSystemServer(); 3002 } 3003 } 3004 3005 /** 3006 * @deprecated This is now just a wrapper for 3007 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3008 * is no longer available to applications because it allows them to 3009 * break other applications by removing their alarms, stopping their 3010 * services, etc. 3011 */ 3012 @Deprecated 3013 public void restartPackage(String packageName) { 3014 killBackgroundProcesses(packageName); 3015 } 3016 3017 /** 3018 * Have the system immediately kill all background processes associated 3019 * with the given package. This is the same as the kernel killing those 3020 * processes to reclaim memory; the system will take care of restarting 3021 * these processes in the future as needed. 3022 * 3023 * <p>You must hold the permission 3024 * {@link android.Manifest.permission#KILL_BACKGROUND_PROCESSES} to be able to 3025 * call this method. 3026 * 3027 * @param packageName The name of the package whose processes are to 3028 * be killed. 3029 */ 3030 public void killBackgroundProcesses(String packageName) { 3031 try { 3032 ActivityManagerNative.getDefault().killBackgroundProcesses(packageName, 3033 UserHandle.myUserId()); 3034 } catch (RemoteException e) { 3035 throw e.rethrowFromSystemServer(); 3036 } 3037 } 3038 3039 /** 3040 * Kills the specified UID. 3041 * @param uid The UID to kill. 3042 * @param reason The reason for the kill. 3043 * 3044 * @hide 3045 */ 3046 @RequiresPermission(Manifest.permission.KILL_UID) 3047 public void killUid(int uid, String reason) { 3048 try { 3049 ActivityManagerNative.getDefault().killUid(UserHandle.getAppId(uid), 3050 UserHandle.getUserId(uid), reason); 3051 } catch (RemoteException e) { 3052 throw e.rethrowFromSystemServer(); 3053 } 3054 } 3055 3056 /** 3057 * Have the system perform a force stop of everything associated with 3058 * the given application package. All processes that share its uid 3059 * will be killed, all services it has running stopped, all activities 3060 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3061 * broadcast will be sent, so that any of its registered alarms can 3062 * be stopped, notifications removed, etc. 3063 * 3064 * <p>You must hold the permission 3065 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3066 * call this method. 3067 * 3068 * @param packageName The name of the package to be stopped. 3069 * @param userId The user for which the running package is to be stopped. 3070 * 3071 * @hide This is not available to third party applications due to 3072 * it allowing them to break other applications by stopping their 3073 * services, removing their alarms, etc. 3074 */ 3075 public void forceStopPackageAsUser(String packageName, int userId) { 3076 try { 3077 ActivityManagerNative.getDefault().forceStopPackage(packageName, userId); 3078 } catch (RemoteException e) { 3079 throw e.rethrowFromSystemServer(); 3080 } 3081 } 3082 3083 /** 3084 * @see #forceStopPackageAsUser(String, int) 3085 * @hide 3086 */ 3087 public void forceStopPackage(String packageName) { 3088 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3089 } 3090 3091 /** 3092 * Get the device configuration attributes. 3093 */ 3094 public ConfigurationInfo getDeviceConfigurationInfo() { 3095 try { 3096 return ActivityManagerNative.getDefault().getDeviceConfigurationInfo(); 3097 } catch (RemoteException e) { 3098 throw e.rethrowFromSystemServer(); 3099 } 3100 } 3101 3102 /** 3103 * Get the preferred density of icons for the launcher. This is used when 3104 * custom drawables are created (e.g., for shortcuts). 3105 * 3106 * @return density in terms of DPI 3107 */ 3108 public int getLauncherLargeIconDensity() { 3109 final Resources res = mContext.getResources(); 3110 final int density = res.getDisplayMetrics().densityDpi; 3111 final int sw = res.getConfiguration().smallestScreenWidthDp; 3112 3113 if (sw < 600) { 3114 // Smaller than approx 7" tablets, use the regular icon size. 3115 return density; 3116 } 3117 3118 switch (density) { 3119 case DisplayMetrics.DENSITY_LOW: 3120 return DisplayMetrics.DENSITY_MEDIUM; 3121 case DisplayMetrics.DENSITY_MEDIUM: 3122 return DisplayMetrics.DENSITY_HIGH; 3123 case DisplayMetrics.DENSITY_TV: 3124 return DisplayMetrics.DENSITY_XHIGH; 3125 case DisplayMetrics.DENSITY_HIGH: 3126 return DisplayMetrics.DENSITY_XHIGH; 3127 case DisplayMetrics.DENSITY_XHIGH: 3128 return DisplayMetrics.DENSITY_XXHIGH; 3129 case DisplayMetrics.DENSITY_XXHIGH: 3130 return DisplayMetrics.DENSITY_XHIGH * 2; 3131 default: 3132 // The density is some abnormal value. Return some other 3133 // abnormal value that is a reasonable scaling of it. 3134 return (int)((density*1.5f)+.5f); 3135 } 3136 } 3137 3138 /** 3139 * Get the preferred launcher icon size. This is used when custom drawables 3140 * are created (e.g., for shortcuts). 3141 * 3142 * @return dimensions of square icons in terms of pixels 3143 */ 3144 public int getLauncherLargeIconSize() { 3145 return getLauncherLargeIconSizeInner(mContext); 3146 } 3147 3148 static int getLauncherLargeIconSizeInner(Context context) { 3149 final Resources res = context.getResources(); 3150 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3151 final int sw = res.getConfiguration().smallestScreenWidthDp; 3152 3153 if (sw < 600) { 3154 // Smaller than approx 7" tablets, use the regular icon size. 3155 return size; 3156 } 3157 3158 final int density = res.getDisplayMetrics().densityDpi; 3159 3160 switch (density) { 3161 case DisplayMetrics.DENSITY_LOW: 3162 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3163 case DisplayMetrics.DENSITY_MEDIUM: 3164 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3165 case DisplayMetrics.DENSITY_TV: 3166 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3167 case DisplayMetrics.DENSITY_HIGH: 3168 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3169 case DisplayMetrics.DENSITY_XHIGH: 3170 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3171 case DisplayMetrics.DENSITY_XXHIGH: 3172 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3173 default: 3174 // The density is some abnormal value. Return some other 3175 // abnormal value that is a reasonable scaling of it. 3176 return (int)((size*1.5f) + .5f); 3177 } 3178 } 3179 3180 /** 3181 * Returns "true" if the user interface is currently being messed with 3182 * by a monkey. 3183 */ 3184 public static boolean isUserAMonkey() { 3185 try { 3186 return ActivityManagerNative.getDefault().isUserAMonkey(); 3187 } catch (RemoteException e) { 3188 throw e.rethrowFromSystemServer(); 3189 } 3190 } 3191 3192 /** 3193 * Returns "true" if device is running in a test harness. 3194 */ 3195 public static boolean isRunningInTestHarness() { 3196 return SystemProperties.getBoolean("ro.test_harness", false); 3197 } 3198 3199 /** 3200 * Returns the launch count of each installed package. 3201 * 3202 * @hide 3203 */ 3204 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3205 try { 3206 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3207 ServiceManager.getService("usagestats")); 3208 if (usageStatsService == null) { 3209 return new HashMap<String, Integer>(); 3210 } 3211 3212 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3213 ActivityThread.currentPackageName()); 3214 if (allPkgUsageStats == null) { 3215 return new HashMap<String, Integer>(); 3216 } 3217 3218 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3219 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3220 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3221 } 3222 3223 return launchCounts; 3224 } catch (RemoteException e) { 3225 Log.w(TAG, "Could not query launch counts", e); 3226 return new HashMap<String, Integer>(); 3227 } 3228 }*/ 3229 3230 /** @hide */ 3231 public static int checkComponentPermission(String permission, int uid, 3232 int owningUid, boolean exported) { 3233 // Root, system server get to do everything. 3234 final int appId = UserHandle.getAppId(uid); 3235 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3236 return PackageManager.PERMISSION_GRANTED; 3237 } 3238 // Isolated processes don't get any permissions. 3239 if (UserHandle.isIsolated(uid)) { 3240 return PackageManager.PERMISSION_DENIED; 3241 } 3242 // If there is a uid that owns whatever is being accessed, it has 3243 // blanket access to it regardless of the permissions it requires. 3244 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3245 return PackageManager.PERMISSION_GRANTED; 3246 } 3247 // If the target is not exported, then nobody else can get to it. 3248 if (!exported) { 3249 /* 3250 RuntimeException here = new RuntimeException("here"); 3251 here.fillInStackTrace(); 3252 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3253 here); 3254 */ 3255 return PackageManager.PERMISSION_DENIED; 3256 } 3257 if (permission == null) { 3258 return PackageManager.PERMISSION_GRANTED; 3259 } 3260 try { 3261 return AppGlobals.getPackageManager() 3262 .checkUidPermission(permission, uid); 3263 } catch (RemoteException e) { 3264 throw e.rethrowFromSystemServer(); 3265 } 3266 } 3267 3268 /** @hide */ 3269 public static int checkUidPermission(String permission, int uid) { 3270 try { 3271 return AppGlobals.getPackageManager() 3272 .checkUidPermission(permission, uid); 3273 } catch (RemoteException e) { 3274 throw e.rethrowFromSystemServer(); 3275 } 3276 } 3277 3278 /** 3279 * @hide 3280 * Helper for dealing with incoming user arguments to system service calls. 3281 * Takes care of checking permissions and converting USER_CURRENT to the 3282 * actual current user. 3283 * 3284 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3285 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3286 * @param userId The user id argument supplied by the caller -- this is the user 3287 * they want to run as. 3288 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3289 * to get a USER_ALL returned and deal with it correctly. If false, 3290 * an exception will be thrown if USER_ALL is supplied. 3291 * @param requireFull If true, the caller must hold 3292 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3293 * different user than their current process; otherwise they must hold 3294 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3295 * @param name Optional textual name of the incoming call; only for generating error messages. 3296 * @param callerPackage Optional package name of caller; only for error messages. 3297 * 3298 * @return Returns the user ID that the call should run as. Will always be a concrete 3299 * user number, unless <var>allowAll</var> is true in which case it could also be 3300 * USER_ALL. 3301 */ 3302 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3303 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3304 if (UserHandle.getUserId(callingUid) == userId) { 3305 return userId; 3306 } 3307 try { 3308 return ActivityManagerNative.getDefault().handleIncomingUser(callingPid, 3309 callingUid, userId, allowAll, requireFull, name, callerPackage); 3310 } catch (RemoteException e) { 3311 throw e.rethrowFromSystemServer(); 3312 } 3313 } 3314 3315 /** 3316 * Gets the userId of the current foreground user. Requires system permissions. 3317 * @hide 3318 */ 3319 @SystemApi 3320 public static int getCurrentUser() { 3321 UserInfo ui; 3322 try { 3323 ui = ActivityManagerNative.getDefault().getCurrentUser(); 3324 return ui != null ? ui.id : 0; 3325 } catch (RemoteException e) { 3326 throw e.rethrowFromSystemServer(); 3327 } 3328 } 3329 3330 /** 3331 * @param userid the user's id. Zero indicates the default user. 3332 * @hide 3333 */ 3334 public boolean switchUser(int userid) { 3335 try { 3336 return ActivityManagerNative.getDefault().switchUser(userid); 3337 } catch (RemoteException e) { 3338 throw e.rethrowFromSystemServer(); 3339 } 3340 } 3341 3342 /** 3343 * Logs out current current foreground user by switching to the system user and stopping the 3344 * user being switched from. 3345 * @hide 3346 */ 3347 public static void logoutCurrentUser() { 3348 int currentUser = ActivityManager.getCurrentUser(); 3349 if (currentUser != UserHandle.USER_SYSTEM) { 3350 try { 3351 ActivityManagerNative.getDefault().switchUser(UserHandle.USER_SYSTEM); 3352 ActivityManagerNative.getDefault().stopUser(currentUser, /* force= */ false, null); 3353 } catch (RemoteException e) { 3354 e.rethrowFromSystemServer(); 3355 } 3356 } 3357 } 3358 3359 /** {@hide} */ 3360 public static final int FLAG_OR_STOPPED = 1 << 0; 3361 /** {@hide} */ 3362 public static final int FLAG_AND_LOCKED = 1 << 1; 3363 /** {@hide} */ 3364 public static final int FLAG_AND_UNLOCKED = 1 << 2; 3365 3366 /** 3367 * Return whether the given user is actively running. This means that 3368 * the user is in the "started" state, not "stopped" -- it is currently 3369 * allowed to run code through scheduled alarms, receiving broadcasts, 3370 * etc. A started user may be either the current foreground user or a 3371 * background user; the result here does not distinguish between the two. 3372 * @param userid the user's id. Zero indicates the default user. 3373 * @hide 3374 */ 3375 public boolean isUserRunning(int userId) { 3376 try { 3377 return ActivityManagerNative.getDefault().isUserRunning(userId, 0); 3378 } catch (RemoteException e) { 3379 throw e.rethrowFromSystemServer(); 3380 } 3381 } 3382 3383 /** {@hide} */ 3384 public boolean isUserRunningAndLocked(int userId) { 3385 try { 3386 return ActivityManagerNative.getDefault().isUserRunning(userId, 3387 ActivityManager.FLAG_AND_LOCKED); 3388 } catch (RemoteException e) { 3389 throw e.rethrowFromSystemServer(); 3390 } 3391 } 3392 3393 /** {@hide} */ 3394 public boolean isUserRunningAndUnlocked(int userId) { 3395 try { 3396 return ActivityManagerNative.getDefault().isUserRunning(userId, 3397 ActivityManager.FLAG_AND_UNLOCKED); 3398 } catch (RemoteException e) { 3399 throw e.rethrowFromSystemServer(); 3400 } 3401 } 3402 3403 /** {@hide} */ 3404 public boolean isVrModePackageEnabled(ComponentName component) { 3405 try { 3406 return ActivityManagerNative.getDefault().isVrModePackageEnabled(component); 3407 } catch (RemoteException e) { 3408 throw e.rethrowFromSystemServer(); 3409 } 3410 } 3411 3412 /** 3413 * Perform a system dump of various state associated with the given application 3414 * package name. This call blocks while the dump is being performed, so should 3415 * not be done on a UI thread. The data will be written to the given file 3416 * descriptor as text. An application must hold the 3417 * {@link android.Manifest.permission#DUMP} permission to make this call. 3418 * @param fd The file descriptor that the dump should be written to. The file 3419 * descriptor is <em>not</em> closed by this function; the caller continues to 3420 * own it. 3421 * @param packageName The name of the package that is to be dumped. 3422 */ 3423 public void dumpPackageState(FileDescriptor fd, String packageName) { 3424 dumpPackageStateStatic(fd, packageName); 3425 } 3426 3427 /** 3428 * @hide 3429 */ 3430 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 3431 FileOutputStream fout = new FileOutputStream(fd); 3432 PrintWriter pw = new FastPrintWriter(fout); 3433 dumpService(pw, fd, "package", new String[] { packageName }); 3434 pw.println(); 3435 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 3436 "-a", "package", packageName }); 3437 pw.println(); 3438 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 3439 pw.println(); 3440 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 3441 pw.println(); 3442 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 3443 pw.println(); 3444 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 3445 pw.flush(); 3446 } 3447 3448 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 3449 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 3450 IBinder service = ServiceManager.checkService(name); 3451 if (service == null) { 3452 pw.println(" (Service not found)"); 3453 return; 3454 } 3455 TransferPipe tp = null; 3456 try { 3457 pw.flush(); 3458 tp = new TransferPipe(); 3459 tp.setBufferPrefix(" "); 3460 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 3461 tp.go(fd, 10000); 3462 } catch (Throwable e) { 3463 if (tp != null) { 3464 tp.kill(); 3465 } 3466 pw.println("Failure dumping service:"); 3467 e.printStackTrace(pw); 3468 } 3469 } 3470 3471 /** 3472 * Request that the system start watching for the calling process to exceed a pss 3473 * size as given here. Once called, the system will look for any occasions where it 3474 * sees the associated process with a larger pss size and, when this happens, automatically 3475 * pull a heap dump from it and allow the user to share the data. Note that this request 3476 * continues running even if the process is killed and restarted. To remove the watch, 3477 * use {@link #clearWatchHeapLimit()}. 3478 * 3479 * <p>This API only work if the calling process has been marked as 3480 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 3481 * (userdebug or eng) build.</p> 3482 * 3483 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 3484 * handle heap limit reports themselves.</p> 3485 * 3486 * @param pssSize The size in bytes to set the limit at. 3487 */ 3488 public void setWatchHeapLimit(long pssSize) { 3489 try { 3490 ActivityManagerNative.getDefault().setDumpHeapDebugLimit(null, 0, pssSize, 3491 mContext.getPackageName()); 3492 } catch (RemoteException e) { 3493 throw e.rethrowFromSystemServer(); 3494 } 3495 } 3496 3497 /** 3498 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 3499 * If your package has an activity handling this action, it will be launched with the 3500 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 3501 * match the activty must support this action and a MIME type of "*/*". 3502 */ 3503 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 3504 3505 /** 3506 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 3507 */ 3508 public void clearWatchHeapLimit() { 3509 try { 3510 ActivityManagerNative.getDefault().setDumpHeapDebugLimit(null, 0, 0, null); 3511 } catch (RemoteException e) { 3512 throw e.rethrowFromSystemServer(); 3513 } 3514 } 3515 3516 /** 3517 * @hide 3518 */ 3519 public void startLockTaskMode(int taskId) { 3520 try { 3521 ActivityManagerNative.getDefault().startLockTaskMode(taskId); 3522 } catch (RemoteException e) { 3523 throw e.rethrowFromSystemServer(); 3524 } 3525 } 3526 3527 /** 3528 * @hide 3529 */ 3530 public void stopLockTaskMode() { 3531 try { 3532 ActivityManagerNative.getDefault().stopLockTaskMode(); 3533 } catch (RemoteException e) { 3534 throw e.rethrowFromSystemServer(); 3535 } 3536 } 3537 3538 /** 3539 * Return whether currently in lock task mode. When in this mode 3540 * no new tasks can be created or switched to. 3541 * 3542 * @see Activity#startLockTask() 3543 * 3544 * @deprecated Use {@link #getLockTaskModeState} instead. 3545 */ 3546 public boolean isInLockTaskMode() { 3547 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 3548 } 3549 3550 /** 3551 * Return the current state of task locking. The three possible outcomes 3552 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 3553 * and {@link #LOCK_TASK_MODE_PINNED}. 3554 * 3555 * @see Activity#startLockTask() 3556 */ 3557 public int getLockTaskModeState() { 3558 try { 3559 return ActivityManagerNative.getDefault().getLockTaskModeState(); 3560 } catch (RemoteException e) { 3561 throw e.rethrowFromSystemServer(); 3562 } 3563 } 3564 3565 /** 3566 * The AppTask allows you to manage your own application's tasks. 3567 * See {@link android.app.ActivityManager#getAppTasks()} 3568 */ 3569 public static class AppTask { 3570 private IAppTask mAppTaskImpl; 3571 3572 /** @hide */ 3573 public AppTask(IAppTask task) { 3574 mAppTaskImpl = task; 3575 } 3576 3577 /** 3578 * Finishes all activities in this task and removes it from the recent tasks list. 3579 */ 3580 public void finishAndRemoveTask() { 3581 try { 3582 mAppTaskImpl.finishAndRemoveTask(); 3583 } catch (RemoteException e) { 3584 throw e.rethrowFromSystemServer(); 3585 } 3586 } 3587 3588 /** 3589 * Get the RecentTaskInfo associated with this task. 3590 * 3591 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 3592 */ 3593 public RecentTaskInfo getTaskInfo() { 3594 try { 3595 return mAppTaskImpl.getTaskInfo(); 3596 } catch (RemoteException e) { 3597 throw e.rethrowFromSystemServer(); 3598 } 3599 } 3600 3601 /** 3602 * Bring this task to the foreground. If it contains activities, they will be 3603 * brought to the foreground with it and their instances re-created if needed. 3604 * If it doesn't contain activities, the root activity of the task will be 3605 * re-launched. 3606 */ 3607 public void moveToFront() { 3608 try { 3609 mAppTaskImpl.moveToFront(); 3610 } catch (RemoteException e) { 3611 throw e.rethrowFromSystemServer(); 3612 } 3613 } 3614 3615 /** 3616 * Start an activity in this task. Brings the task to the foreground. If this task 3617 * is not currently active (that is, its id < 0), then a new activity for the given 3618 * Intent will be launched as the root of the task and the task brought to the 3619 * foreground. Otherwise, if this task is currently active and the Intent does not specify 3620 * an activity to launch in a new task, then a new activity for the given Intent will 3621 * be launched on top of the task and the task brought to the foreground. If this 3622 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 3623 * or would otherwise be launched in to a new task, then the activity not launched but 3624 * this task be brought to the foreground and a new intent delivered to the top 3625 * activity if appropriate. 3626 * 3627 * <p>In other words, you generally want to use an Intent here that does not specify 3628 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 3629 * and let the system do the right thing.</p> 3630 * 3631 * @param intent The Intent describing the new activity to be launched on the task. 3632 * @param options Optional launch options. 3633 * 3634 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 3635 */ 3636 public void startActivity(Context context, Intent intent, Bundle options) { 3637 ActivityThread thread = ActivityThread.currentActivityThread(); 3638 thread.getInstrumentation().execStartActivityFromAppTask(context, 3639 thread.getApplicationThread(), mAppTaskImpl, intent, options); 3640 } 3641 3642 /** 3643 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 3644 * Intent of this AppTask. 3645 * 3646 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 3647 * be set; otherwise, it will be cleared. 3648 */ 3649 public void setExcludeFromRecents(boolean exclude) { 3650 try { 3651 mAppTaskImpl.setExcludeFromRecents(exclude); 3652 } catch (RemoteException e) { 3653 throw e.rethrowFromSystemServer(); 3654 } 3655 } 3656 } 3657} 3658