ActivityManager.java revision 29379ec859bf7118dec9f3248c63ee369218ad6b
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.pm.ActivityInfo; 26import android.content.res.Configuration; 27import android.graphics.Canvas; 28import android.graphics.Matrix; 29import android.graphics.Point; 30import android.os.BatteryStats; 31import android.os.IBinder; 32import android.os.ParcelFileDescriptor; 33 34import android.util.Log; 35import com.android.internal.app.procstats.ProcessStats; 36import com.android.internal.os.TransferPipe; 37import com.android.internal.util.FastPrintWriter; 38 39import android.content.ComponentName; 40import android.content.Context; 41import android.content.Intent; 42import android.content.UriPermission; 43import android.content.pm.ApplicationInfo; 44import android.content.pm.ConfigurationInfo; 45import android.content.pm.IPackageDataObserver; 46import android.content.pm.PackageManager; 47import android.content.pm.ParceledListSlice; 48import android.content.pm.UserInfo; 49import android.content.res.Resources; 50import android.graphics.Bitmap; 51import android.graphics.Color; 52import android.graphics.Rect; 53import android.os.Bundle; 54import android.os.Debug; 55import android.os.Handler; 56import android.os.Parcel; 57import android.os.Parcelable; 58import android.os.Process; 59import android.os.RemoteException; 60import android.os.ServiceManager; 61import android.os.SystemProperties; 62import android.os.UserHandle; 63import android.text.TextUtils; 64import android.util.DisplayMetrics; 65import android.util.Size; 66import android.util.Slog; 67 68import org.xmlpull.v1.XmlSerializer; 69 70import java.io.FileDescriptor; 71import java.io.FileOutputStream; 72import java.io.IOException; 73import java.io.PrintWriter; 74import java.lang.annotation.Retention; 75import java.lang.annotation.RetentionPolicy; 76import java.util.ArrayList; 77import java.util.List; 78 79/** 80 * Interact with the overall activities running in the system. 81 */ 82public class ActivityManager { 83 private static String TAG = "ActivityManager"; 84 85 private static int gMaxRecentTasks = -1; 86 87 private final Context mContext; 88 private final Handler mHandler; 89 90 /** 91 * Defines acceptable types of bugreports. 92 * @hide 93 */ 94 @Retention(RetentionPolicy.SOURCE) 95 @IntDef({ 96 BUGREPORT_OPTION_FULL, 97 BUGREPORT_OPTION_INTERACTIVE, 98 BUGREPORT_OPTION_REMOTE 99 }) 100 public @interface BugreportMode {} 101 /** 102 * Takes a bugreport without user interference (and hence causing less 103 * interference to the system), but includes all sections. 104 * @hide 105 */ 106 public static final int BUGREPORT_OPTION_FULL = 0; 107 /** 108 * Allows user to monitor progress and enter additional data; might not include all 109 * sections. 110 * @hide 111 */ 112 public static final int BUGREPORT_OPTION_INTERACTIVE = 1; 113 /** 114 * Takes a bugreport requested remotely by administrator of the Device Owner app, 115 * not the device's user. 116 * @hide 117 */ 118 public static final int BUGREPORT_OPTION_REMOTE = 2; 119 120 /** 121 * <a href="{@docRoot}guide/topics/manifest/meta-data-element.html">{@code 122 * <meta-data>}</a> name for a 'home' Activity that declares a package that is to be 123 * uninstalled in lieu of the declaring one. The package named here must be 124 * signed with the same certificate as the one declaring the {@code <meta-data>}. 125 */ 126 public static final String META_HOME_ALTERNATE = "android.app.home.alternate"; 127 128 /** 129 * Result for IActivityManager.startActivity: trying to start a background user 130 * activity that shouldn't be displayed for all users. 131 * @hide 132 */ 133 public static final int START_NOT_CURRENT_USER_ACTIVITY = -8; 134 135 /** 136 * Result for IActivityManager.startActivity: trying to start an activity under voice 137 * control when that activity does not support the VOICE category. 138 * @hide 139 */ 140 public static final int START_NOT_VOICE_COMPATIBLE = -7; 141 142 /** 143 * Result for IActivityManager.startActivity: an error where the 144 * start had to be canceled. 145 * @hide 146 */ 147 public static final int START_CANCELED = -6; 148 149 /** 150 * Result for IActivityManager.startActivity: an error where the 151 * thing being started is not an activity. 152 * @hide 153 */ 154 public static final int START_NOT_ACTIVITY = -5; 155 156 /** 157 * Result for IActivityManager.startActivity: an error where the 158 * caller does not have permission to start the activity. 159 * @hide 160 */ 161 public static final int START_PERMISSION_DENIED = -4; 162 163 /** 164 * Result for IActivityManager.startActivity: an error where the 165 * caller has requested both to forward a result and to receive 166 * a result. 167 * @hide 168 */ 169 public static final int START_FORWARD_AND_REQUEST_CONFLICT = -3; 170 171 /** 172 * Result for IActivityManager.startActivity: an error where the 173 * requested class is not found. 174 * @hide 175 */ 176 public static final int START_CLASS_NOT_FOUND = -2; 177 178 /** 179 * Result for IActivityManager.startActivity: an error where the 180 * given Intent could not be resolved to an activity. 181 * @hide 182 */ 183 public static final int START_INTENT_NOT_RESOLVED = -1; 184 185 /** 186 * Result for IActivityManaqer.startActivity: the activity was started 187 * successfully as normal. 188 * @hide 189 */ 190 public static final int START_SUCCESS = 0; 191 192 /** 193 * Result for IActivityManaqer.startActivity: the caller asked that the Intent not 194 * be executed if it is the recipient, and that is indeed the case. 195 * @hide 196 */ 197 public static final int START_RETURN_INTENT_TO_CALLER = 1; 198 199 /** 200 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 201 * a task was simply brought to the foreground. 202 * @hide 203 */ 204 public static final int START_TASK_TO_FRONT = 2; 205 206 /** 207 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 208 * the given Intent was given to the existing top activity. 209 * @hide 210 */ 211 public static final int START_DELIVERED_TO_TOP = 3; 212 213 /** 214 * Result for IActivityManaqer.startActivity: request was canceled because 215 * app switches are temporarily canceled to ensure the user's last request 216 * (such as pressing home) is performed. 217 * @hide 218 */ 219 public static final int START_SWITCHES_CANCELED = 4; 220 221 /** 222 * Result for IActivityManaqer.startActivity: a new activity was attempted to be started 223 * while in Lock Task Mode. 224 * @hide 225 */ 226 public static final int START_RETURN_LOCK_TASK_MODE_VIOLATION = 5; 227 228 /** 229 * Flag for IActivityManaqer.startActivity: do special start mode where 230 * a new activity is launched only if it is needed. 231 * @hide 232 */ 233 public static final int START_FLAG_ONLY_IF_NEEDED = 1<<0; 234 235 /** 236 * Flag for IActivityManaqer.startActivity: launch the app for 237 * debugging. 238 * @hide 239 */ 240 public static final int START_FLAG_DEBUG = 1<<1; 241 242 /** 243 * Flag for IActivityManaqer.startActivity: launch the app for 244 * allocation tracking. 245 * @hide 246 */ 247 public static final int START_FLAG_TRACK_ALLOCATION = 1<<2; 248 249 /** 250 * Flag for IActivityManaqer.startActivity: launch the app with 251 * native debugging support. 252 * @hide 253 */ 254 public static final int START_FLAG_NATIVE_DEBUGGING = 1<<3; 255 256 /** 257 * Result for IActivityManaqer.broadcastIntent: success! 258 * @hide 259 */ 260 public static final int BROADCAST_SUCCESS = 0; 261 262 /** 263 * Result for IActivityManaqer.broadcastIntent: attempt to broadcast 264 * a sticky intent without appropriate permission. 265 * @hide 266 */ 267 public static final int BROADCAST_STICKY_CANT_HAVE_PERMISSION = -1; 268 269 /** 270 * Result for IActivityManager.broadcastIntent: trying to send a broadcast 271 * to a stopped user. Fail. 272 * @hide 273 */ 274 public static final int BROADCAST_FAILED_USER_STOPPED = -2; 275 276 /** 277 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 278 * for a sendBroadcast operation. 279 * @hide 280 */ 281 public static final int INTENT_SENDER_BROADCAST = 1; 282 283 /** 284 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 285 * for a startActivity operation. 286 * @hide 287 */ 288 public static final int INTENT_SENDER_ACTIVITY = 2; 289 290 /** 291 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 292 * for an activity result operation. 293 * @hide 294 */ 295 public static final int INTENT_SENDER_ACTIVITY_RESULT = 3; 296 297 /** 298 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 299 * for a startService operation. 300 * @hide 301 */ 302 public static final int INTENT_SENDER_SERVICE = 4; 303 304 /** @hide User operation call: success! */ 305 public static final int USER_OP_SUCCESS = 0; 306 307 /** @hide User operation call: given user id is not known. */ 308 public static final int USER_OP_UNKNOWN_USER = -1; 309 310 /** @hide User operation call: given user id is the current user, can't be stopped. */ 311 public static final int USER_OP_IS_CURRENT = -2; 312 313 /** @hide User operation call: system user can't be stopped. */ 314 public static final int USER_OP_ERROR_IS_SYSTEM = -3; 315 316 /** @hide User operation call: one of related users cannot be stopped. */ 317 public static final int USER_OP_ERROR_RELATED_USERS_CANNOT_STOP = -4; 318 319 /** @hide Process does not exist. */ 320 public static final int PROCESS_STATE_NONEXISTENT = -1; 321 322 /** @hide Process is a persistent system process. */ 323 public static final int PROCESS_STATE_PERSISTENT = 0; 324 325 /** @hide Process is a persistent system process and is doing UI. */ 326 public static final int PROCESS_STATE_PERSISTENT_UI = 1; 327 328 /** @hide Process is hosting the current top activities. Note that this covers 329 * all activities that are visible to the user. */ 330 public static final int PROCESS_STATE_TOP = 2; 331 332 /** @hide Process is hosting a foreground service due to a system binding. */ 333 public static final int PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 3; 334 335 /** @hide Process is hosting a foreground service. */ 336 public static final int PROCESS_STATE_FOREGROUND_SERVICE = 4; 337 338 /** @hide Same as {@link #PROCESS_STATE_TOP} but while device is sleeping. */ 339 public static final int PROCESS_STATE_TOP_SLEEPING = 5; 340 341 /** @hide Process is important to the user, and something they are aware of. */ 342 public static final int PROCESS_STATE_IMPORTANT_FOREGROUND = 6; 343 344 /** @hide Process is important to the user, but not something they are aware of. */ 345 public static final int PROCESS_STATE_IMPORTANT_BACKGROUND = 7; 346 347 /** @hide Process is in the background running a backup/restore operation. */ 348 public static final int PROCESS_STATE_BACKUP = 8; 349 350 /** @hide Process is in the background, but it can't restore its state so we want 351 * to try to avoid killing it. */ 352 public static final int PROCESS_STATE_HEAVY_WEIGHT = 9; 353 354 /** @hide Process is in the background running a service. Unlike oom_adj, this level 355 * is used for both the normal running in background state and the executing 356 * operations state. */ 357 public static final int PROCESS_STATE_SERVICE = 10; 358 359 /** @hide Process is in the background running a receiver. Note that from the 360 * perspective of oom_adj receivers run at a higher foreground level, but for our 361 * prioritization here that is not necessary and putting them below services means 362 * many fewer changes in some process states as they receive broadcasts. */ 363 public static final int PROCESS_STATE_RECEIVER = 11; 364 365 /** @hide Process is in the background but hosts the home activity. */ 366 public static final int PROCESS_STATE_HOME = 12; 367 368 /** @hide Process is in the background but hosts the last shown activity. */ 369 public static final int PROCESS_STATE_LAST_ACTIVITY = 13; 370 371 /** @hide Process is being cached for later use and contains activities. */ 372 public static final int PROCESS_STATE_CACHED_ACTIVITY = 14; 373 374 /** @hide Process is being cached for later use and is a client of another cached 375 * process that contains activities. */ 376 public static final int PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 15; 377 378 /** @hide Process is being cached for later use and is empty. */ 379 public static final int PROCESS_STATE_CACHED_EMPTY = 16; 380 381 /** @hide The lowest process state number */ 382 public static final int MIN_PROCESS_STATE = PROCESS_STATE_NONEXISTENT; 383 384 /** @hide The highest process state number */ 385 public static final int MAX_PROCESS_STATE = PROCESS_STATE_CACHED_EMPTY; 386 387 /** @hide Should this process state be considered a background state? */ 388 public static final boolean isProcStateBackground(int procState) { 389 return procState >= PROCESS_STATE_BACKUP; 390 } 391 392 /** @hide requestType for assist context: only basic information. */ 393 public static final int ASSIST_CONTEXT_BASIC = 0; 394 395 /** @hide requestType for assist context: generate full AssistStructure. */ 396 public static final int ASSIST_CONTEXT_FULL = 1; 397 398 /** @hide Flag for registerUidObserver: report changes in process state. */ 399 public static final int UID_OBSERVER_PROCSTATE = 1<<0; 400 401 /** @hide Flag for registerUidObserver: report uid gone. */ 402 public static final int UID_OBSERVER_GONE = 1<<1; 403 404 /** @hide Flag for registerUidObserver: report uid has become idle. */ 405 public static final int UID_OBSERVER_IDLE = 1<<2; 406 407 /** @hide Flag for registerUidObserver: report uid has become active. */ 408 public static final int UID_OBSERVER_ACTIVE = 1<<3; 409 410 /** @hide Mode for {@link IActivityManager#getAppStartMode}: normal free-to-run operation. */ 411 public static final int APP_START_MODE_NORMAL = 0; 412 413 /** @hide Mode for {@link IActivityManager#getAppStartMode}: delay running until later. */ 414 public static final int APP_START_MODE_DELAYED = 1; 415 416 /** @hide Mode for {@link IActivityManager#getAppStartMode}: disable/cancel pending 417 * launches. */ 418 public static final int APP_START_MODE_DISABLED = 2; 419 420 /** 421 * Lock task mode is not active. 422 */ 423 public static final int LOCK_TASK_MODE_NONE = 0; 424 425 /** 426 * Full lock task mode is active. 427 */ 428 public static final int LOCK_TASK_MODE_LOCKED = 1; 429 430 /** 431 * App pinning mode is active. 432 */ 433 public static final int LOCK_TASK_MODE_PINNED = 2; 434 435 Point mAppTaskThumbnailSize; 436 437 /*package*/ ActivityManager(Context context, Handler handler) { 438 mContext = context; 439 mHandler = handler; 440 } 441 442 /** 443 * Screen compatibility mode: the application most always run in 444 * compatibility mode. 445 * @hide 446 */ 447 public static final int COMPAT_MODE_ALWAYS = -1; 448 449 /** 450 * Screen compatibility mode: the application can never run in 451 * compatibility mode. 452 * @hide 453 */ 454 public static final int COMPAT_MODE_NEVER = -2; 455 456 /** 457 * Screen compatibility mode: unknown. 458 * @hide 459 */ 460 public static final int COMPAT_MODE_UNKNOWN = -3; 461 462 /** 463 * Screen compatibility mode: the application currently has compatibility 464 * mode disabled. 465 * @hide 466 */ 467 public static final int COMPAT_MODE_DISABLED = 0; 468 469 /** 470 * Screen compatibility mode: the application currently has compatibility 471 * mode enabled. 472 * @hide 473 */ 474 public static final int COMPAT_MODE_ENABLED = 1; 475 476 /** 477 * Screen compatibility mode: request to toggle the application's 478 * compatibility mode. 479 * @hide 480 */ 481 public static final int COMPAT_MODE_TOGGLE = 2; 482 483 /** @hide */ 484 public static class StackId { 485 /** Invalid stack ID. */ 486 public static final int INVALID_STACK_ID = -1; 487 488 /** First static stack ID. */ 489 public static final int FIRST_STATIC_STACK_ID = 0; 490 491 /** Home activity stack ID. */ 492 public static final int HOME_STACK_ID = FIRST_STATIC_STACK_ID; 493 494 /** ID of stack where fullscreen activities are normally launched into. */ 495 public static final int FULLSCREEN_WORKSPACE_STACK_ID = 1; 496 497 /** ID of stack where freeform/resized activities are normally launched into. */ 498 public static final int FREEFORM_WORKSPACE_STACK_ID = FULLSCREEN_WORKSPACE_STACK_ID + 1; 499 500 /** ID of stack that occupies a dedicated region of the screen. */ 501 public static final int DOCKED_STACK_ID = FREEFORM_WORKSPACE_STACK_ID + 1; 502 503 /** ID of stack that always on top (always visible) when it exist. */ 504 public static final int PINNED_STACK_ID = DOCKED_STACK_ID + 1; 505 506 /** Last static stack stack ID. */ 507 public static final int LAST_STATIC_STACK_ID = PINNED_STACK_ID; 508 509 /** Start of ID range used by stacks that are created dynamically. */ 510 public static final int FIRST_DYNAMIC_STACK_ID = LAST_STATIC_STACK_ID + 1; 511 512 public static boolean isStaticStack(int stackId) { 513 return stackId >= FIRST_STATIC_STACK_ID && stackId <= LAST_STATIC_STACK_ID; 514 } 515 516 /** 517 * Returns true if the activities contained in the input stack display a shadow around 518 * their border. 519 */ 520 public static boolean hasWindowShadow(int stackId) { 521 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 522 } 523 524 /** 525 * Returns true if the activities contained in the input stack display a decor view. 526 */ 527 public static boolean hasWindowDecor(int stackId) { 528 return stackId == FREEFORM_WORKSPACE_STACK_ID; 529 } 530 531 /** 532 * Returns true if the tasks contained in the stack can be resized independently of the 533 * stack. 534 */ 535 public static boolean isTaskResizeAllowed(int stackId) { 536 return stackId == FREEFORM_WORKSPACE_STACK_ID; 537 } 538 539 /** Returns true if the task bounds should persist across power cycles. */ 540 public static boolean persistTaskBounds(int stackId) { 541 return stackId == FREEFORM_WORKSPACE_STACK_ID; 542 } 543 544 /** 545 * Returns true if dynamic stacks are allowed to be visible behind the input stack. 546 */ 547 public static boolean isDynamicStacksVisibleBehindAllowed(int stackId) { 548 return stackId == PINNED_STACK_ID; 549 } 550 551 /** 552 * Returns true if we try to maintain focus in the current stack when the top activity 553 * finishes. 554 */ 555 public static boolean keepFocusInStackIfPossible(int stackId) { 556 return stackId == FREEFORM_WORKSPACE_STACK_ID 557 || stackId == DOCKED_STACK_ID || stackId == PINNED_STACK_ID; 558 } 559 560 /** 561 * Returns true if Stack size is affected by the docked stack changing size. 562 */ 563 public static boolean isResizeableByDockedStack(int stackId) { 564 return isStaticStack(stackId) && 565 stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID; 566 } 567 568 /** 569 * Returns true if the size of tasks in the input stack are affected by the docked stack 570 * changing size. 571 */ 572 public static boolean isTaskResizeableByDockedStack(int stackId) { 573 return isStaticStack(stackId) && stackId != FREEFORM_WORKSPACE_STACK_ID 574 && stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID; 575 } 576 577 /** 578 * Returns true if the windows of tasks being moved to the target stack from the source 579 * stack should be replaced, meaning that window manager will keep the old window around 580 * until the new is ready. 581 */ 582 public static boolean replaceWindowsOnTaskMove(int sourceStackId, int targetStackId) { 583 return sourceStackId == FREEFORM_WORKSPACE_STACK_ID 584 || targetStackId == FREEFORM_WORKSPACE_STACK_ID; 585 } 586 587 /** 588 * Return whether a stackId is a stack containing floating windows. Floating windows 589 * are laid out differently as they are allowed to extend past the display bounds 590 * without overscan insets. 591 */ 592 public static boolean tasksAreFloating(int stackId) { 593 return stackId == FREEFORM_WORKSPACE_STACK_ID 594 || stackId == PINNED_STACK_ID; 595 } 596 597 /** 598 * Returns true if animation specs should be constructed for app transition that moves 599 * the task to the specified stack. 600 */ 601 public static boolean useAnimationSpecForAppTransition(int stackId) { 602 603 // TODO: INVALID_STACK_ID is also animated because we don't persist stack id's across 604 // reboots. 605 return stackId == FREEFORM_WORKSPACE_STACK_ID 606 || stackId == FULLSCREEN_WORKSPACE_STACK_ID || stackId == DOCKED_STACK_ID 607 || stackId == INVALID_STACK_ID; 608 } 609 610 /** Returns true if the windows in the stack can receive input keys. */ 611 public static boolean canReceiveKeys(int stackId) { 612 return stackId != PINNED_STACK_ID; 613 } 614 615 /** 616 * Returns true if the stack can be visible above lockscreen. 617 */ 618 public static boolean isAllowedOverLockscreen(int stackId) { 619 return stackId == HOME_STACK_ID || stackId == FULLSCREEN_WORKSPACE_STACK_ID; 620 } 621 622 public static boolean isAlwaysOnTop(int stackId) { 623 return stackId == PINNED_STACK_ID; 624 } 625 626 /** 627 * Returns true if the top task in the task is allowed to return home when finished and 628 * there are other tasks in the stack. 629 */ 630 public static boolean allowTopTaskToReturnHome(int stackId) { 631 return stackId != PINNED_STACK_ID; 632 } 633 634 /** 635 * Returns true if the stack should be resized to match the bounds specified by 636 * {@link ActivityOptions#setLaunchBounds} when launching an activity into the stack. 637 */ 638 public static boolean resizeStackWithLaunchBounds(int stackId) { 639 return stackId == PINNED_STACK_ID; 640 } 641 642 /** 643 * Returns true if any visible windows belonging to apps in this stack should be kept on 644 * screen when the app is killed due to something like the low memory killer. 645 */ 646 public static boolean keepVisibleDeadAppWindowOnScreen(int stackId) { 647 return stackId != PINNED_STACK_ID; 648 } 649 650 /** 651 * Returns true if the backdrop on the client side should match the frame of the window. 652 * Returns false, if the backdrop should be fullscreen. 653 */ 654 public static boolean useWindowFrameForBackdrop(int stackId) { 655 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 656 } 657 658 /** 659 * Returns true if a window from the specified stack with {@param stackId} are normally 660 * fullscreen, i. e. they can become the top opaque fullscreen window, meaning that it 661 * controls system bars, lockscreen occluded/dismissing state, screen rotation animation, 662 * etc. 663 */ 664 public static boolean normallyFullscreenWindows(int stackId) { 665 return stackId != PINNED_STACK_ID && stackId != FREEFORM_WORKSPACE_STACK_ID 666 && stackId != DOCKED_STACK_ID; 667 } 668 669 /** 670 * Returns true if the input stack id should only be present on a device that supports 671 * multi-window mode. 672 * @see android.app.ActivityManager#supportsMultiWindow 673 */ 674 public static boolean isMultiWindowStack(int stackId) { 675 return isStaticStack(stackId) || stackId == PINNED_STACK_ID 676 || stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == DOCKED_STACK_ID; 677 } 678 } 679 680 /** 681 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 682 * specifies the position of the created docked stack at the top half of the screen if 683 * in portrait mode or at the left half of the screen if in landscape mode. 684 * @hide 685 */ 686 public static final int DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT = 0; 687 688 /** 689 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 690 * specifies the position of the created docked stack at the bottom half of the screen if 691 * in portrait mode or at the right half of the screen if in landscape mode. 692 * @hide 693 */ 694 public static final int DOCKED_STACK_CREATE_MODE_BOTTOM_OR_RIGHT = 1; 695 696 /** 697 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 698 * that the resize doesn't need to preserve the window, and can be skipped if bounds 699 * is unchanged. This mode is used by window manager in most cases. 700 * @hide 701 */ 702 public static final int RESIZE_MODE_SYSTEM = 0; 703 704 /** 705 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 706 * that the resize should preserve the window if possible. 707 * @hide 708 */ 709 public static final int RESIZE_MODE_PRESERVE_WINDOW = (0x1 << 0); 710 711 /** 712 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 713 * that the resize should be performed even if the bounds appears unchanged. 714 * @hide 715 */ 716 public static final int RESIZE_MODE_FORCED = (0x1 << 1); 717 718 /** 719 * Input parameter to {@link android.app.IActivityManager#resizeTask} used by window 720 * manager during a screen rotation. 721 * @hide 722 */ 723 public static final int RESIZE_MODE_SYSTEM_SCREEN_ROTATION = RESIZE_MODE_PRESERVE_WINDOW; 724 725 /** 726 * Input parameter to {@link android.app.IActivityManager#resizeTask} used when the 727 * resize is due to a drag action. 728 * @hide 729 */ 730 public static final int RESIZE_MODE_USER = RESIZE_MODE_PRESERVE_WINDOW; 731 732 /** 733 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 734 * that the resize should preserve the window if possible, and should not be skipped 735 * even if the bounds is unchanged. Usually used to force a resizing when a drag action 736 * is ending. 737 * @hide 738 */ 739 public static final int RESIZE_MODE_USER_FORCED = 740 RESIZE_MODE_PRESERVE_WINDOW | RESIZE_MODE_FORCED; 741 742 /** @hide */ 743 public int getFrontActivityScreenCompatMode() { 744 try { 745 return ActivityManagerNative.getDefault().getFrontActivityScreenCompatMode(); 746 } catch (RemoteException e) { 747 throw e.rethrowFromSystemServer(); 748 } 749 } 750 751 /** @hide */ 752 public void setFrontActivityScreenCompatMode(int mode) { 753 try { 754 ActivityManagerNative.getDefault().setFrontActivityScreenCompatMode(mode); 755 } catch (RemoteException e) { 756 throw e.rethrowFromSystemServer(); 757 } 758 } 759 760 /** @hide */ 761 public int getPackageScreenCompatMode(String packageName) { 762 try { 763 return ActivityManagerNative.getDefault().getPackageScreenCompatMode(packageName); 764 } catch (RemoteException e) { 765 throw e.rethrowFromSystemServer(); 766 } 767 } 768 769 /** @hide */ 770 public void setPackageScreenCompatMode(String packageName, int mode) { 771 try { 772 ActivityManagerNative.getDefault().setPackageScreenCompatMode(packageName, mode); 773 } catch (RemoteException e) { 774 throw e.rethrowFromSystemServer(); 775 } 776 } 777 778 /** @hide */ 779 public boolean getPackageAskScreenCompat(String packageName) { 780 try { 781 return ActivityManagerNative.getDefault().getPackageAskScreenCompat(packageName); 782 } catch (RemoteException e) { 783 throw e.rethrowFromSystemServer(); 784 } 785 } 786 787 /** @hide */ 788 public void setPackageAskScreenCompat(String packageName, boolean ask) { 789 try { 790 ActivityManagerNative.getDefault().setPackageAskScreenCompat(packageName, ask); 791 } catch (RemoteException e) { 792 throw e.rethrowFromSystemServer(); 793 } 794 } 795 796 /** 797 * Return the approximate per-application memory class of the current 798 * device. This gives you an idea of how hard a memory limit you should 799 * impose on your application to let the overall system work best. The 800 * returned value is in megabytes; the baseline Android memory class is 801 * 16 (which happens to be the Java heap limit of those devices); some 802 * device with more memory may return 24 or even higher numbers. 803 */ 804 public int getMemoryClass() { 805 return staticGetMemoryClass(); 806 } 807 808 /** @hide */ 809 static public int staticGetMemoryClass() { 810 // Really brain dead right now -- just take this from the configured 811 // vm heap size, and assume it is in megabytes and thus ends with "m". 812 String vmHeapSize = SystemProperties.get("dalvik.vm.heapgrowthlimit", ""); 813 if (vmHeapSize != null && !"".equals(vmHeapSize)) { 814 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1)); 815 } 816 return staticGetLargeMemoryClass(); 817 } 818 819 /** 820 * Return the approximate per-application memory class of the current 821 * device when an application is running with a large heap. This is the 822 * space available for memory-intensive applications; most applications 823 * should not need this amount of memory, and should instead stay with the 824 * {@link #getMemoryClass()} limit. The returned value is in megabytes. 825 * This may be the same size as {@link #getMemoryClass()} on memory 826 * constrained devices, or it may be significantly larger on devices with 827 * a large amount of available RAM. 828 * 829 * <p>The is the size of the application's Dalvik heap if it has 830 * specified <code>android:largeHeap="true"</code> in its manifest. 831 */ 832 public int getLargeMemoryClass() { 833 return staticGetLargeMemoryClass(); 834 } 835 836 /** @hide */ 837 static public int staticGetLargeMemoryClass() { 838 // Really brain dead right now -- just take this from the configured 839 // vm heap size, and assume it is in megabytes and thus ends with "m". 840 String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m"); 841 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1)); 842 } 843 844 /** 845 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 846 * is ultimately up to the device configuration, but currently it generally means 847 * something in the class of a 512MB device with about a 800x480 or less screen. 848 * This is mostly intended to be used by apps to determine whether they should turn 849 * off certain features that require more RAM. 850 */ 851 public boolean isLowRamDevice() { 852 return isLowRamDeviceStatic(); 853 } 854 855 /** @hide */ 856 public static boolean isLowRamDeviceStatic() { 857 return "true".equals(SystemProperties.get("ro.config.low_ram", "false")); 858 } 859 860 /** 861 * Used by persistent processes to determine if they are running on a 862 * higher-end device so should be okay using hardware drawing acceleration 863 * (which tends to consume a lot more RAM). 864 * @hide 865 */ 866 static public boolean isHighEndGfx() { 867 return !isLowRamDeviceStatic() && 868 !Resources.getSystem().getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 869 } 870 871 /** 872 * Return the maximum number of recents entries that we will maintain and show. 873 * @hide 874 */ 875 static public int getMaxRecentTasksStatic() { 876 if (gMaxRecentTasks < 0) { 877 return gMaxRecentTasks = isLowRamDeviceStatic() ? 50 : 100; 878 } 879 return gMaxRecentTasks; 880 } 881 882 /** 883 * Return the default limit on the number of recents that an app can make. 884 * @hide 885 */ 886 static public int getDefaultAppRecentsLimitStatic() { 887 return getMaxRecentTasksStatic() / 6; 888 } 889 890 /** 891 * Return the maximum limit on the number of recents that an app can make. 892 * @hide 893 */ 894 static public int getMaxAppRecentsLimitStatic() { 895 return getMaxRecentTasksStatic() / 2; 896 } 897 898 /** 899 * Returns true if the system supports at least one form of multi-window. 900 * E.g. freeform, split-screen, picture-in-picture. 901 * @hide 902 */ 903 static public boolean supportsMultiWindow() { 904 return !isLowRamDeviceStatic() 905 && Resources.getSystem().getBoolean( 906 com.android.internal.R.bool.config_supportsMultiWindow); 907 } 908 909 /** 910 * Information you can set and retrieve about the current activity within the recent task list. 911 */ 912 public static class TaskDescription implements Parcelable { 913 /** @hide */ 914 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 915 private static final String ATTR_TASKDESCRIPTIONLABEL = 916 ATTR_TASKDESCRIPTION_PREFIX + "label"; 917 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 918 ATTR_TASKDESCRIPTION_PREFIX + "color"; 919 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 920 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 921 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 922 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 923 924 private String mLabel; 925 private Bitmap mIcon; 926 private String mIconFilename; 927 private int mColorPrimary; 928 private int mColorBackground; 929 930 /** 931 * Creates the TaskDescription to the specified values. 932 * 933 * @param label A label and description of the current state of this task. 934 * @param icon An icon that represents the current state of this task. 935 * @param colorPrimary A color to override the theme's primary color. This color must be 936 * opaque. 937 */ 938 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 939 this(label, icon, null, colorPrimary, 0); 940 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 941 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 942 } 943 } 944 945 /** 946 * Creates the TaskDescription to the specified values. 947 * 948 * @param label A label and description of the current state of this activity. 949 * @param icon An icon that represents the current state of this activity. 950 */ 951 public TaskDescription(String label, Bitmap icon) { 952 this(label, icon, null, 0, 0); 953 } 954 955 /** 956 * Creates the TaskDescription to the specified values. 957 * 958 * @param label A label and description of the current state of this activity. 959 */ 960 public TaskDescription(String label) { 961 this(label, null, null, 0, 0); 962 } 963 964 /** 965 * Creates an empty TaskDescription. 966 */ 967 public TaskDescription() { 968 this(null, null, null, 0, 0); 969 } 970 971 /** @hide */ 972 public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary, 973 int colorBackground) { 974 mLabel = label; 975 mIcon = icon; 976 mIconFilename = iconFilename; 977 mColorPrimary = colorPrimary; 978 mColorBackground = colorBackground; 979 } 980 981 /** 982 * Creates a copy of another TaskDescription. 983 */ 984 public TaskDescription(TaskDescription td) { 985 copyFrom(td); 986 } 987 988 /** 989 * Copies this the values from another TaskDescription. 990 * @hide 991 */ 992 public void copyFrom(TaskDescription other) { 993 mLabel = other.mLabel; 994 mIcon = other.mIcon; 995 mIconFilename = other.mIconFilename; 996 mColorPrimary = other.mColorPrimary; 997 mColorBackground = other.mColorBackground; 998 } 999 1000 private TaskDescription(Parcel source) { 1001 readFromParcel(source); 1002 } 1003 1004 /** 1005 * Sets the label for this task description. 1006 * @hide 1007 */ 1008 public void setLabel(String label) { 1009 mLabel = label; 1010 } 1011 1012 /** 1013 * Sets the primary color for this task description. 1014 * @hide 1015 */ 1016 public void setPrimaryColor(int primaryColor) { 1017 // Ensure that the given color is valid 1018 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1019 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1020 } 1021 mColorPrimary = primaryColor; 1022 } 1023 1024 /** 1025 * Sets the background color for this task description. 1026 * @hide 1027 */ 1028 public void setBackgroundColor(int backgroundColor) { 1029 // Ensure that the given color is valid 1030 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1031 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1032 } 1033 mColorBackground = backgroundColor; 1034 } 1035 1036 /** 1037 * Sets the icon for this task description. 1038 * @hide 1039 */ 1040 public void setIcon(Bitmap icon) { 1041 mIcon = icon; 1042 } 1043 1044 /** 1045 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1046 * bitmap. 1047 * @hide 1048 */ 1049 public void setIconFilename(String iconFilename) { 1050 mIconFilename = iconFilename; 1051 mIcon = null; 1052 } 1053 1054 /** 1055 * @return The label and description of the current state of this task. 1056 */ 1057 public String getLabel() { 1058 return mLabel; 1059 } 1060 1061 /** 1062 * @return The icon that represents the current state of this task. 1063 */ 1064 public Bitmap getIcon() { 1065 if (mIcon != null) { 1066 return mIcon; 1067 } 1068 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1069 } 1070 1071 /** @hide */ 1072 public String getIconFilename() { 1073 return mIconFilename; 1074 } 1075 1076 /** @hide */ 1077 public Bitmap getInMemoryIcon() { 1078 return mIcon; 1079 } 1080 1081 /** @hide */ 1082 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1083 if (iconFilename != null) { 1084 try { 1085 return ActivityManagerNative.getDefault().getTaskDescriptionIcon(iconFilename, 1086 userId); 1087 } catch (RemoteException e) { 1088 throw e.rethrowFromSystemServer(); 1089 } 1090 } 1091 return null; 1092 } 1093 1094 /** 1095 * @return The color override on the theme's primary color. 1096 */ 1097 public int getPrimaryColor() { 1098 return mColorPrimary; 1099 } 1100 1101 /** 1102 * @return The background color. 1103 * @hide 1104 */ 1105 public int getBackgroundColor() { 1106 return mColorBackground; 1107 } 1108 1109 /** @hide */ 1110 public void saveToXml(XmlSerializer out) throws IOException { 1111 if (mLabel != null) { 1112 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1113 } 1114 if (mColorPrimary != 0) { 1115 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1116 Integer.toHexString(mColorPrimary)); 1117 } 1118 if (mColorBackground != 0) { 1119 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1120 Integer.toHexString(mColorBackground)); 1121 } 1122 if (mIconFilename != null) { 1123 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 1124 } 1125 } 1126 1127 /** @hide */ 1128 public void restoreFromXml(String attrName, String attrValue) { 1129 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1130 setLabel(attrValue); 1131 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1132 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1133 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1134 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1135 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 1136 setIconFilename(attrValue); 1137 } 1138 } 1139 1140 @Override 1141 public int describeContents() { 1142 return 0; 1143 } 1144 1145 @Override 1146 public void writeToParcel(Parcel dest, int flags) { 1147 if (mLabel == null) { 1148 dest.writeInt(0); 1149 } else { 1150 dest.writeInt(1); 1151 dest.writeString(mLabel); 1152 } 1153 if (mIcon == null) { 1154 dest.writeInt(0); 1155 } else { 1156 dest.writeInt(1); 1157 mIcon.writeToParcel(dest, 0); 1158 } 1159 dest.writeInt(mColorPrimary); 1160 dest.writeInt(mColorBackground); 1161 if (mIconFilename == null) { 1162 dest.writeInt(0); 1163 } else { 1164 dest.writeInt(1); 1165 dest.writeString(mIconFilename); 1166 } 1167 } 1168 1169 public void readFromParcel(Parcel source) { 1170 mLabel = source.readInt() > 0 ? source.readString() : null; 1171 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1172 mColorPrimary = source.readInt(); 1173 mColorBackground = source.readInt(); 1174 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1175 } 1176 1177 public static final Creator<TaskDescription> CREATOR 1178 = new Creator<TaskDescription>() { 1179 public TaskDescription createFromParcel(Parcel source) { 1180 return new TaskDescription(source); 1181 } 1182 public TaskDescription[] newArray(int size) { 1183 return new TaskDescription[size]; 1184 } 1185 }; 1186 1187 @Override 1188 public String toString() { 1189 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1190 " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary + 1191 " colorBackground: " + mColorBackground; 1192 } 1193 } 1194 1195 /** 1196 * Information you can retrieve about tasks that the user has most recently 1197 * started or visited. 1198 */ 1199 public static class RecentTaskInfo implements Parcelable { 1200 /** 1201 * If this task is currently running, this is the identifier for it. 1202 * If it is not running, this will be -1. 1203 */ 1204 public int id; 1205 1206 /** 1207 * The true identifier of this task, valid even if it is not running. 1208 */ 1209 public int persistentId; 1210 1211 /** 1212 * The original Intent used to launch the task. You can use this 1213 * Intent to re-launch the task (if it is no longer running) or bring 1214 * the current task to the front. 1215 */ 1216 public Intent baseIntent; 1217 1218 /** 1219 * If this task was started from an alias, this is the actual 1220 * activity component that was initially started; the component of 1221 * the baseIntent in this case is the name of the actual activity 1222 * implementation that the alias referred to. Otherwise, this is null. 1223 */ 1224 public ComponentName origActivity; 1225 1226 /** 1227 * The actual activity component that started the task. 1228 * @hide 1229 */ 1230 @Nullable 1231 public ComponentName realActivity; 1232 1233 /** 1234 * Description of the task's last state. 1235 */ 1236 public CharSequence description; 1237 1238 /** 1239 * The id of the ActivityStack this Task was on most recently. 1240 * @hide 1241 */ 1242 public int stackId; 1243 1244 /** 1245 * The id of the user the task was running as. 1246 * @hide 1247 */ 1248 public int userId; 1249 1250 /** 1251 * The first time this task was active. 1252 * @hide 1253 */ 1254 public long firstActiveTime; 1255 1256 /** 1257 * The last time this task was active. 1258 * @hide 1259 */ 1260 public long lastActiveTime; 1261 1262 /** 1263 * The recent activity values for the highest activity in the stack to have set the values. 1264 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1265 */ 1266 public TaskDescription taskDescription; 1267 1268 /** 1269 * Task affiliation for grouping with other tasks. 1270 */ 1271 public int affiliatedTaskId; 1272 1273 /** 1274 * Task affiliation color of the source task with the affiliated task id. 1275 * 1276 * @hide 1277 */ 1278 public int affiliatedTaskColor; 1279 1280 /** 1281 * The component launched as the first activity in the task. 1282 * This can be considered the "application" of this task. 1283 */ 1284 public ComponentName baseActivity; 1285 1286 /** 1287 * The activity component at the top of the history stack of the task. 1288 * This is what the user is currently doing. 1289 */ 1290 public ComponentName topActivity; 1291 1292 /** 1293 * Number of activities in this task. 1294 */ 1295 public int numActivities; 1296 1297 /** 1298 * The bounds of the task. 1299 * @hide 1300 */ 1301 public Rect bounds; 1302 1303 /** 1304 * True if the task can go in the docked stack. 1305 * @hide 1306 */ 1307 public boolean isDockable; 1308 1309 /** 1310 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1311 * @hide 1312 */ 1313 public int resizeMode; 1314 1315 public RecentTaskInfo() { 1316 } 1317 1318 @Override 1319 public int describeContents() { 1320 return 0; 1321 } 1322 1323 @Override 1324 public void writeToParcel(Parcel dest, int flags) { 1325 dest.writeInt(id); 1326 dest.writeInt(persistentId); 1327 if (baseIntent != null) { 1328 dest.writeInt(1); 1329 baseIntent.writeToParcel(dest, 0); 1330 } else { 1331 dest.writeInt(0); 1332 } 1333 ComponentName.writeToParcel(origActivity, dest); 1334 ComponentName.writeToParcel(realActivity, dest); 1335 TextUtils.writeToParcel(description, dest, 1336 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1337 if (taskDescription != null) { 1338 dest.writeInt(1); 1339 taskDescription.writeToParcel(dest, 0); 1340 } else { 1341 dest.writeInt(0); 1342 } 1343 dest.writeInt(stackId); 1344 dest.writeInt(userId); 1345 dest.writeLong(firstActiveTime); 1346 dest.writeLong(lastActiveTime); 1347 dest.writeInt(affiliatedTaskId); 1348 dest.writeInt(affiliatedTaskColor); 1349 ComponentName.writeToParcel(baseActivity, dest); 1350 ComponentName.writeToParcel(topActivity, dest); 1351 dest.writeInt(numActivities); 1352 if (bounds != null) { 1353 dest.writeInt(1); 1354 bounds.writeToParcel(dest, 0); 1355 } else { 1356 dest.writeInt(0); 1357 } 1358 dest.writeInt(isDockable ? 1 : 0); 1359 dest.writeInt(resizeMode); 1360 } 1361 1362 public void readFromParcel(Parcel source) { 1363 id = source.readInt(); 1364 persistentId = source.readInt(); 1365 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1366 origActivity = ComponentName.readFromParcel(source); 1367 realActivity = ComponentName.readFromParcel(source); 1368 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1369 taskDescription = source.readInt() > 0 ? 1370 TaskDescription.CREATOR.createFromParcel(source) : null; 1371 stackId = source.readInt(); 1372 userId = source.readInt(); 1373 firstActiveTime = source.readLong(); 1374 lastActiveTime = source.readLong(); 1375 affiliatedTaskId = source.readInt(); 1376 affiliatedTaskColor = source.readInt(); 1377 baseActivity = ComponentName.readFromParcel(source); 1378 topActivity = ComponentName.readFromParcel(source); 1379 numActivities = source.readInt(); 1380 bounds = source.readInt() > 0 ? 1381 Rect.CREATOR.createFromParcel(source) : null; 1382 isDockable = source.readInt() == 1; 1383 resizeMode = source.readInt(); 1384 } 1385 1386 public static final Creator<RecentTaskInfo> CREATOR 1387 = new Creator<RecentTaskInfo>() { 1388 public RecentTaskInfo createFromParcel(Parcel source) { 1389 return new RecentTaskInfo(source); 1390 } 1391 public RecentTaskInfo[] newArray(int size) { 1392 return new RecentTaskInfo[size]; 1393 } 1394 }; 1395 1396 private RecentTaskInfo(Parcel source) { 1397 readFromParcel(source); 1398 } 1399 } 1400 1401 /** 1402 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1403 * that have set their 1404 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1405 */ 1406 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1407 1408 /** 1409 * Provides a list that does not contain any 1410 * recent tasks that currently are not available to the user. 1411 */ 1412 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1413 1414 /** 1415 * Provides a list that contains recent tasks for all 1416 * profiles of a user. 1417 * @hide 1418 */ 1419 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1420 1421 /** 1422 * Ignores all tasks that are on the home stack. 1423 * @hide 1424 */ 1425 public static final int RECENT_IGNORE_HOME_STACK_TASKS = 0x0008; 1426 1427 /** 1428 * Ignores the top task in the docked stack. 1429 * @hide 1430 */ 1431 public static final int RECENT_INGORE_DOCKED_STACK_TOP_TASK = 0x0010; 1432 1433 /** 1434 * Ignores all tasks that are on the pinned stack. 1435 * @hide 1436 */ 1437 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1438 1439 /** 1440 * <p></p>Return a list of the tasks that the user has recently launched, with 1441 * the most recent being first and older ones after in order. 1442 * 1443 * <p><b>Note: this method is only intended for debugging and presenting 1444 * task management user interfaces</b>. This should never be used for 1445 * core logic in an application, such as deciding between different 1446 * behaviors based on the information found here. Such uses are 1447 * <em>not</em> supported, and will likely break in the future. For 1448 * example, if multiple applications can be actively running at the 1449 * same time, assumptions made about the meaning of the data here for 1450 * purposes of control flow will be incorrect.</p> 1451 * 1452 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1453 * no longer available to third party applications: the introduction of 1454 * document-centric recents means 1455 * it can leak personal information to the caller. For backwards compatibility, 1456 * it will still return a small subset of its data: at least the caller's 1457 * own tasks (though see {@link #getAppTasks()} for the correct supported 1458 * way to retrieve that information), and possibly some other tasks 1459 * such as home that are known to not be sensitive. 1460 * 1461 * @param maxNum The maximum number of entries to return in the list. The 1462 * actual number returned may be smaller, depending on how many tasks the 1463 * user has started and the maximum number the system can remember. 1464 * @param flags Information about what to return. May be any combination 1465 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1466 * 1467 * @return Returns a list of RecentTaskInfo records describing each of 1468 * the recent tasks. 1469 */ 1470 @Deprecated 1471 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1472 throws SecurityException { 1473 try { 1474 return ActivityManagerNative.getDefault().getRecentTasks(maxNum, 1475 flags, UserHandle.myUserId()); 1476 } catch (RemoteException e) { 1477 throw e.rethrowFromSystemServer(); 1478 } 1479 } 1480 1481 /** 1482 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1483 * specific user. It requires holding 1484 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1485 * @param maxNum The maximum number of entries to return in the list. The 1486 * actual number returned may be smaller, depending on how many tasks the 1487 * user has started and the maximum number the system can remember. 1488 * @param flags Information about what to return. May be any combination 1489 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1490 * 1491 * @return Returns a list of RecentTaskInfo records describing each of 1492 * the recent tasks. Most recently activated tasks go first. 1493 * 1494 * @hide 1495 */ 1496 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1497 throws SecurityException { 1498 try { 1499 return ActivityManagerNative.getDefault().getRecentTasks(maxNum, 1500 flags, userId); 1501 } catch (RemoteException e) { 1502 throw e.rethrowFromSystemServer(); 1503 } 1504 } 1505 1506 /** 1507 * Information you can retrieve about a particular task that is currently 1508 * "running" in the system. Note that a running task does not mean the 1509 * given task actually has a process it is actively running in; it simply 1510 * means that the user has gone to it and never closed it, but currently 1511 * the system may have killed its process and is only holding on to its 1512 * last state in order to restart it when the user returns. 1513 */ 1514 public static class RunningTaskInfo implements Parcelable { 1515 /** 1516 * A unique identifier for this task. 1517 */ 1518 public int id; 1519 1520 /** 1521 * The stack that currently contains this task. 1522 * @hide 1523 */ 1524 public int stackId; 1525 1526 /** 1527 * The component launched as the first activity in the task. This can 1528 * be considered the "application" of this task. 1529 */ 1530 public ComponentName baseActivity; 1531 1532 /** 1533 * The activity component at the top of the history stack of the task. 1534 * This is what the user is currently doing. 1535 */ 1536 public ComponentName topActivity; 1537 1538 /** 1539 * Thumbnail representation of the task's current state. Currently 1540 * always null. 1541 */ 1542 public Bitmap thumbnail; 1543 1544 /** 1545 * Description of the task's current state. 1546 */ 1547 public CharSequence description; 1548 1549 /** 1550 * Number of activities in this task. 1551 */ 1552 public int numActivities; 1553 1554 /** 1555 * Number of activities that are currently running (not stopped 1556 * and persisted) in this task. 1557 */ 1558 public int numRunning; 1559 1560 /** 1561 * Last time task was run. For sorting. 1562 * @hide 1563 */ 1564 public long lastActiveTime; 1565 1566 /** 1567 * True if the task can go in the docked stack. 1568 * @hide 1569 */ 1570 public boolean isDockable; 1571 1572 /** 1573 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1574 * @hide 1575 */ 1576 public int resizeMode; 1577 1578 public RunningTaskInfo() { 1579 } 1580 1581 public int describeContents() { 1582 return 0; 1583 } 1584 1585 public void writeToParcel(Parcel dest, int flags) { 1586 dest.writeInt(id); 1587 dest.writeInt(stackId); 1588 ComponentName.writeToParcel(baseActivity, dest); 1589 ComponentName.writeToParcel(topActivity, dest); 1590 if (thumbnail != null) { 1591 dest.writeInt(1); 1592 thumbnail.writeToParcel(dest, 0); 1593 } else { 1594 dest.writeInt(0); 1595 } 1596 TextUtils.writeToParcel(description, dest, 1597 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1598 dest.writeInt(numActivities); 1599 dest.writeInt(numRunning); 1600 dest.writeInt(isDockable ? 1 : 0); 1601 dest.writeInt(resizeMode); 1602 } 1603 1604 public void readFromParcel(Parcel source) { 1605 id = source.readInt(); 1606 stackId = source.readInt(); 1607 baseActivity = ComponentName.readFromParcel(source); 1608 topActivity = ComponentName.readFromParcel(source); 1609 if (source.readInt() != 0) { 1610 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1611 } else { 1612 thumbnail = null; 1613 } 1614 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1615 numActivities = source.readInt(); 1616 numRunning = source.readInt(); 1617 isDockable = source.readInt() != 0; 1618 resizeMode = source.readInt(); 1619 } 1620 1621 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1622 public RunningTaskInfo createFromParcel(Parcel source) { 1623 return new RunningTaskInfo(source); 1624 } 1625 public RunningTaskInfo[] newArray(int size) { 1626 return new RunningTaskInfo[size]; 1627 } 1628 }; 1629 1630 private RunningTaskInfo(Parcel source) { 1631 readFromParcel(source); 1632 } 1633 } 1634 1635 /** 1636 * Get the list of tasks associated with the calling application. 1637 * 1638 * @return The list of tasks associated with the application making this call. 1639 * @throws SecurityException 1640 */ 1641 public List<ActivityManager.AppTask> getAppTasks() { 1642 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1643 List<IAppTask> appTasks; 1644 try { 1645 appTasks = ActivityManagerNative.getDefault().getAppTasks(mContext.getPackageName()); 1646 } catch (RemoteException e) { 1647 throw e.rethrowFromSystemServer(); 1648 } 1649 int numAppTasks = appTasks.size(); 1650 for (int i = 0; i < numAppTasks; i++) { 1651 tasks.add(new AppTask(appTasks.get(i))); 1652 } 1653 return tasks; 1654 } 1655 1656 /** 1657 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1658 * with {@link #addAppTask}. 1659 */ 1660 public Size getAppTaskThumbnailSize() { 1661 synchronized (this) { 1662 ensureAppTaskThumbnailSizeLocked(); 1663 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1664 } 1665 } 1666 1667 private void ensureAppTaskThumbnailSizeLocked() { 1668 if (mAppTaskThumbnailSize == null) { 1669 try { 1670 mAppTaskThumbnailSize = ActivityManagerNative.getDefault().getAppTaskThumbnailSize(); 1671 } catch (RemoteException e) { 1672 throw e.rethrowFromSystemServer(); 1673 } 1674 } 1675 } 1676 1677 /** 1678 * Add a new {@link AppTask} for the calling application. This will create a new 1679 * recents entry that is added to the <b>end</b> of all existing recents. 1680 * 1681 * @param activity The activity that is adding the entry. This is used to help determine 1682 * the context that the new recents entry will be in. 1683 * @param intent The Intent that describes the recents entry. This is the same Intent that 1684 * you would have used to launch the activity for it. In generally you will want to set 1685 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1686 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1687 * entry will exist without an activity, so it doesn't make sense to not retain it when 1688 * its activity disappears. The given Intent here also must have an explicit ComponentName 1689 * set on it. 1690 * @param description Optional additional description information. 1691 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1692 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1693 * recreated in your process, probably in a way you don't like, before the recents entry 1694 * is added. 1695 * 1696 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 1697 * most likely cause of failure is that there is no more room for more tasks for your app. 1698 */ 1699 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 1700 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 1701 Point size; 1702 synchronized (this) { 1703 ensureAppTaskThumbnailSizeLocked(); 1704 size = mAppTaskThumbnailSize; 1705 } 1706 final int tw = thumbnail.getWidth(); 1707 final int th = thumbnail.getHeight(); 1708 if (tw != size.x || th != size.y) { 1709 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 1710 1711 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 1712 float scale; 1713 float dx = 0, dy = 0; 1714 if (tw * size.x > size.y * th) { 1715 scale = (float) size.x / (float) th; 1716 dx = (size.y - tw * scale) * 0.5f; 1717 } else { 1718 scale = (float) size.y / (float) tw; 1719 dy = (size.x - th * scale) * 0.5f; 1720 } 1721 Matrix matrix = new Matrix(); 1722 matrix.setScale(scale, scale); 1723 matrix.postTranslate((int) (dx + 0.5f), 0); 1724 1725 Canvas canvas = new Canvas(bm); 1726 canvas.drawBitmap(thumbnail, matrix, null); 1727 canvas.setBitmap(null); 1728 1729 thumbnail = bm; 1730 } 1731 if (description == null) { 1732 description = new TaskDescription(); 1733 } 1734 try { 1735 return ActivityManagerNative.getDefault().addAppTask(activity.getActivityToken(), 1736 intent, description, thumbnail); 1737 } catch (RemoteException e) { 1738 throw e.rethrowFromSystemServer(); 1739 } 1740 } 1741 1742 /** 1743 * Return a list of the tasks that are currently running, with 1744 * the most recent being first and older ones after in order. Note that 1745 * "running" does not mean any of the task's code is currently loaded or 1746 * activity -- the task may have been frozen by the system, so that it 1747 * can be restarted in its previous state when next brought to the 1748 * foreground. 1749 * 1750 * <p><b>Note: this method is only intended for debugging and presenting 1751 * task management user interfaces</b>. This should never be used for 1752 * core logic in an application, such as deciding between different 1753 * behaviors based on the information found here. Such uses are 1754 * <em>not</em> supported, and will likely break in the future. For 1755 * example, if multiple applications can be actively running at the 1756 * same time, assumptions made about the meaning of the data here for 1757 * purposes of control flow will be incorrect.</p> 1758 * 1759 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 1760 * is no longer available to third party 1761 * applications: the introduction of document-centric recents means 1762 * it can leak person information to the caller. For backwards compatibility, 1763 * it will still retu rn a small subset of its data: at least the caller's 1764 * own tasks, and possibly some other tasks 1765 * such as home that are known to not be sensitive. 1766 * 1767 * @param maxNum The maximum number of entries to return in the list. The 1768 * actual number returned may be smaller, depending on how many tasks the 1769 * user has started. 1770 * 1771 * @return Returns a list of RunningTaskInfo records describing each of 1772 * the running tasks. 1773 */ 1774 @Deprecated 1775 public List<RunningTaskInfo> getRunningTasks(int maxNum) 1776 throws SecurityException { 1777 try { 1778 return ActivityManagerNative.getDefault().getTasks(maxNum, 0); 1779 } catch (RemoteException e) { 1780 throw e.rethrowFromSystemServer(); 1781 } 1782 } 1783 1784 /** 1785 * Completely remove the given task. 1786 * 1787 * @param taskId Identifier of the task to be removed. 1788 * @return Returns true if the given task was found and removed. 1789 * 1790 * @hide 1791 */ 1792 public boolean removeTask(int taskId) throws SecurityException { 1793 try { 1794 return ActivityManagerNative.getDefault().removeTask(taskId); 1795 } catch (RemoteException e) { 1796 throw e.rethrowFromSystemServer(); 1797 } 1798 } 1799 1800 /** 1801 * Metadata related to the {@link TaskThumbnail}. 1802 * 1803 * @hide 1804 */ 1805 public static class TaskThumbnailInfo implements Parcelable { 1806 /** @hide */ 1807 public static final String ATTR_TASK_THUMBNAILINFO_PREFIX = "task_thumbnailinfo_"; 1808 private static final String ATTR_TASK_WIDTH = 1809 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_width"; 1810 private static final String ATTR_TASK_HEIGHT = 1811 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_height"; 1812 private static final String ATTR_SCREEN_ORIENTATION = 1813 ATTR_TASK_THUMBNAILINFO_PREFIX + "screen_orientation"; 1814 1815 public int taskWidth; 1816 public int taskHeight; 1817 public int screenOrientation = Configuration.ORIENTATION_UNDEFINED; 1818 1819 public TaskThumbnailInfo() { 1820 // Do nothing 1821 } 1822 1823 private TaskThumbnailInfo(Parcel source) { 1824 readFromParcel(source); 1825 } 1826 1827 /** 1828 * Resets this info state to the initial state. 1829 * @hide 1830 */ 1831 public void reset() { 1832 taskWidth = 0; 1833 taskHeight = 0; 1834 screenOrientation = Configuration.ORIENTATION_UNDEFINED; 1835 } 1836 1837 /** 1838 * Copies from another ThumbnailInfo. 1839 */ 1840 public void copyFrom(TaskThumbnailInfo o) { 1841 taskWidth = o.taskWidth; 1842 taskHeight = o.taskHeight; 1843 screenOrientation = o.screenOrientation; 1844 } 1845 1846 /** @hide */ 1847 public void saveToXml(XmlSerializer out) throws IOException { 1848 out.attribute(null, ATTR_TASK_WIDTH, Integer.toString(taskWidth)); 1849 out.attribute(null, ATTR_TASK_HEIGHT, Integer.toString(taskHeight)); 1850 out.attribute(null, ATTR_SCREEN_ORIENTATION, Integer.toString(screenOrientation)); 1851 } 1852 1853 /** @hide */ 1854 public void restoreFromXml(String attrName, String attrValue) { 1855 if (ATTR_TASK_WIDTH.equals(attrName)) { 1856 taskWidth = Integer.parseInt(attrValue); 1857 } else if (ATTR_TASK_HEIGHT.equals(attrName)) { 1858 taskHeight = Integer.parseInt(attrValue); 1859 } else if (ATTR_SCREEN_ORIENTATION.equals(attrName)) { 1860 screenOrientation = Integer.parseInt(attrValue); 1861 } 1862 } 1863 1864 public int describeContents() { 1865 return 0; 1866 } 1867 1868 public void writeToParcel(Parcel dest, int flags) { 1869 dest.writeInt(taskWidth); 1870 dest.writeInt(taskHeight); 1871 dest.writeInt(screenOrientation); 1872 } 1873 1874 public void readFromParcel(Parcel source) { 1875 taskWidth = source.readInt(); 1876 taskHeight = source.readInt(); 1877 screenOrientation = source.readInt(); 1878 } 1879 1880 public static final Creator<TaskThumbnailInfo> CREATOR = new Creator<TaskThumbnailInfo>() { 1881 public TaskThumbnailInfo createFromParcel(Parcel source) { 1882 return new TaskThumbnailInfo(source); 1883 } 1884 public TaskThumbnailInfo[] newArray(int size) { 1885 return new TaskThumbnailInfo[size]; 1886 } 1887 }; 1888 } 1889 1890 /** @hide */ 1891 public static class TaskThumbnail implements Parcelable { 1892 public Bitmap mainThumbnail; 1893 public ParcelFileDescriptor thumbnailFileDescriptor; 1894 public TaskThumbnailInfo thumbnailInfo; 1895 1896 public TaskThumbnail() { 1897 } 1898 1899 private TaskThumbnail(Parcel source) { 1900 readFromParcel(source); 1901 } 1902 1903 public int describeContents() { 1904 if (thumbnailFileDescriptor != null) { 1905 return thumbnailFileDescriptor.describeContents(); 1906 } 1907 return 0; 1908 } 1909 1910 public void writeToParcel(Parcel dest, int flags) { 1911 if (mainThumbnail != null) { 1912 dest.writeInt(1); 1913 mainThumbnail.writeToParcel(dest, flags); 1914 } else { 1915 dest.writeInt(0); 1916 } 1917 if (thumbnailFileDescriptor != null) { 1918 dest.writeInt(1); 1919 thumbnailFileDescriptor.writeToParcel(dest, flags); 1920 } else { 1921 dest.writeInt(0); 1922 } 1923 if (thumbnailInfo != null) { 1924 dest.writeInt(1); 1925 thumbnailInfo.writeToParcel(dest, flags); 1926 } else { 1927 dest.writeInt(0); 1928 } 1929 } 1930 1931 public void readFromParcel(Parcel source) { 1932 if (source.readInt() != 0) { 1933 mainThumbnail = Bitmap.CREATOR.createFromParcel(source); 1934 } else { 1935 mainThumbnail = null; 1936 } 1937 if (source.readInt() != 0) { 1938 thumbnailFileDescriptor = ParcelFileDescriptor.CREATOR.createFromParcel(source); 1939 } else { 1940 thumbnailFileDescriptor = null; 1941 } 1942 if (source.readInt() != 0) { 1943 thumbnailInfo = TaskThumbnailInfo.CREATOR.createFromParcel(source); 1944 } else { 1945 thumbnailInfo = null; 1946 } 1947 } 1948 1949 public static final Creator<TaskThumbnail> CREATOR = new Creator<TaskThumbnail>() { 1950 public TaskThumbnail createFromParcel(Parcel source) { 1951 return new TaskThumbnail(source); 1952 } 1953 public TaskThumbnail[] newArray(int size) { 1954 return new TaskThumbnail[size]; 1955 } 1956 }; 1957 } 1958 1959 /** @hide */ 1960 public TaskThumbnail getTaskThumbnail(int id) throws SecurityException { 1961 try { 1962 return ActivityManagerNative.getDefault().getTaskThumbnail(id); 1963 } catch (RemoteException e) { 1964 throw e.rethrowFromSystemServer(); 1965 } 1966 } 1967 1968 /** @hide */ 1969 public boolean isInHomeStack(int taskId) { 1970 try { 1971 return ActivityManagerNative.getDefault().isInHomeStack(taskId); 1972 } catch (RemoteException e) { 1973 throw e.rethrowFromSystemServer(); 1974 } 1975 } 1976 1977 /** 1978 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 1979 * activity along with the task, so it is positioned immediately behind 1980 * the task. 1981 */ 1982 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 1983 1984 /** 1985 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 1986 * user-instigated action, so the current activity will not receive a 1987 * hint that the user is leaving. 1988 */ 1989 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 1990 1991 /** 1992 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 1993 * with a null options argument. 1994 * 1995 * @param taskId The identifier of the task to be moved, as found in 1996 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 1997 * @param flags Additional operational flags, 0 or more of 1998 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 1999 */ 2000 public void moveTaskToFront(int taskId, int flags) { 2001 moveTaskToFront(taskId, flags, null); 2002 } 2003 2004 /** 2005 * Ask that the task associated with a given task ID be moved to the 2006 * front of the stack, so it is now visible to the user. Requires that 2007 * the caller hold permission {@link android.Manifest.permission#REORDER_TASKS} 2008 * or a SecurityException will be thrown. 2009 * 2010 * @param taskId The identifier of the task to be moved, as found in 2011 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2012 * @param flags Additional operational flags, 0 or more of 2013 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 2014 * @param options Additional options for the operation, either null or 2015 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2016 * Context.startActivity(Intent, Bundle)}. 2017 */ 2018 public void moveTaskToFront(int taskId, int flags, Bundle options) { 2019 try { 2020 ActivityManagerNative.getDefault().moveTaskToFront(taskId, flags, options); 2021 } catch (RemoteException e) { 2022 throw e.rethrowFromSystemServer(); 2023 } 2024 } 2025 2026 /** 2027 * Information you can retrieve about a particular Service that is 2028 * currently running in the system. 2029 */ 2030 public static class RunningServiceInfo implements Parcelable { 2031 /** 2032 * The service component. 2033 */ 2034 public ComponentName service; 2035 2036 /** 2037 * If non-zero, this is the process the service is running in. 2038 */ 2039 public int pid; 2040 2041 /** 2042 * The UID that owns this service. 2043 */ 2044 public int uid; 2045 2046 /** 2047 * The name of the process this service runs in. 2048 */ 2049 public String process; 2050 2051 /** 2052 * Set to true if the service has asked to run as a foreground process. 2053 */ 2054 public boolean foreground; 2055 2056 /** 2057 * The time when the service was first made active, either by someone 2058 * starting or binding to it. This 2059 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2060 */ 2061 public long activeSince; 2062 2063 /** 2064 * Set to true if this service has been explicitly started. 2065 */ 2066 public boolean started; 2067 2068 /** 2069 * Number of clients connected to the service. 2070 */ 2071 public int clientCount; 2072 2073 /** 2074 * Number of times the service's process has crashed while the service 2075 * is running. 2076 */ 2077 public int crashCount; 2078 2079 /** 2080 * The time when there was last activity in the service (either 2081 * explicit requests to start it or clients binding to it). This 2082 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2083 */ 2084 public long lastActivityTime; 2085 2086 /** 2087 * If non-zero, this service is not currently running, but scheduled to 2088 * restart at the given time. 2089 */ 2090 public long restarting; 2091 2092 /** 2093 * Bit for {@link #flags}: set if this service has been 2094 * explicitly started. 2095 */ 2096 public static final int FLAG_STARTED = 1<<0; 2097 2098 /** 2099 * Bit for {@link #flags}: set if the service has asked to 2100 * run as a foreground process. 2101 */ 2102 public static final int FLAG_FOREGROUND = 1<<1; 2103 2104 /** 2105 * Bit for {@link #flags): set if the service is running in a 2106 * core system process. 2107 */ 2108 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2109 2110 /** 2111 * Bit for {@link #flags): set if the service is running in a 2112 * persistent process. 2113 */ 2114 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2115 2116 /** 2117 * Running flags. 2118 */ 2119 public int flags; 2120 2121 /** 2122 * For special services that are bound to by system code, this is 2123 * the package that holds the binding. 2124 */ 2125 public String clientPackage; 2126 2127 /** 2128 * For special services that are bound to by system code, this is 2129 * a string resource providing a user-visible label for who the 2130 * client is. 2131 */ 2132 public int clientLabel; 2133 2134 public RunningServiceInfo() { 2135 } 2136 2137 public int describeContents() { 2138 return 0; 2139 } 2140 2141 public void writeToParcel(Parcel dest, int flags) { 2142 ComponentName.writeToParcel(service, dest); 2143 dest.writeInt(pid); 2144 dest.writeInt(uid); 2145 dest.writeString(process); 2146 dest.writeInt(foreground ? 1 : 0); 2147 dest.writeLong(activeSince); 2148 dest.writeInt(started ? 1 : 0); 2149 dest.writeInt(clientCount); 2150 dest.writeInt(crashCount); 2151 dest.writeLong(lastActivityTime); 2152 dest.writeLong(restarting); 2153 dest.writeInt(this.flags); 2154 dest.writeString(clientPackage); 2155 dest.writeInt(clientLabel); 2156 } 2157 2158 public void readFromParcel(Parcel source) { 2159 service = ComponentName.readFromParcel(source); 2160 pid = source.readInt(); 2161 uid = source.readInt(); 2162 process = source.readString(); 2163 foreground = source.readInt() != 0; 2164 activeSince = source.readLong(); 2165 started = source.readInt() != 0; 2166 clientCount = source.readInt(); 2167 crashCount = source.readInt(); 2168 lastActivityTime = source.readLong(); 2169 restarting = source.readLong(); 2170 flags = source.readInt(); 2171 clientPackage = source.readString(); 2172 clientLabel = source.readInt(); 2173 } 2174 2175 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2176 public RunningServiceInfo createFromParcel(Parcel source) { 2177 return new RunningServiceInfo(source); 2178 } 2179 public RunningServiceInfo[] newArray(int size) { 2180 return new RunningServiceInfo[size]; 2181 } 2182 }; 2183 2184 private RunningServiceInfo(Parcel source) { 2185 readFromParcel(source); 2186 } 2187 } 2188 2189 /** 2190 * Return a list of the services that are currently running. 2191 * 2192 * <p><b>Note: this method is only intended for debugging or implementing 2193 * service management type user interfaces.</b></p> 2194 * 2195 * @param maxNum The maximum number of entries to return in the list. The 2196 * actual number returned may be smaller, depending on how many services 2197 * are running. 2198 * 2199 * @return Returns a list of RunningServiceInfo records describing each of 2200 * the running tasks. 2201 */ 2202 public List<RunningServiceInfo> getRunningServices(int maxNum) 2203 throws SecurityException { 2204 try { 2205 return ActivityManagerNative.getDefault() 2206 .getServices(maxNum, 0); 2207 } catch (RemoteException e) { 2208 throw e.rethrowFromSystemServer(); 2209 } 2210 } 2211 2212 /** 2213 * Returns a PendingIntent you can start to show a control panel for the 2214 * given running service. If the service does not have a control panel, 2215 * null is returned. 2216 */ 2217 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2218 throws SecurityException { 2219 try { 2220 return ActivityManagerNative.getDefault() 2221 .getRunningServiceControlPanel(service); 2222 } catch (RemoteException e) { 2223 throw e.rethrowFromSystemServer(); 2224 } 2225 } 2226 2227 /** 2228 * Information you can retrieve about the available memory through 2229 * {@link ActivityManager#getMemoryInfo}. 2230 */ 2231 public static class MemoryInfo implements Parcelable { 2232 /** 2233 * The available memory on the system. This number should not 2234 * be considered absolute: due to the nature of the kernel, a significant 2235 * portion of this memory is actually in use and needed for the overall 2236 * system to run well. 2237 */ 2238 public long availMem; 2239 2240 /** 2241 * The total memory accessible by the kernel. This is basically the 2242 * RAM size of the device, not including below-kernel fixed allocations 2243 * like DMA buffers, RAM for the baseband CPU, etc. 2244 */ 2245 public long totalMem; 2246 2247 /** 2248 * The threshold of {@link #availMem} at which we consider memory to be 2249 * low and start killing background services and other non-extraneous 2250 * processes. 2251 */ 2252 public long threshold; 2253 2254 /** 2255 * Set to true if the system considers itself to currently be in a low 2256 * memory situation. 2257 */ 2258 public boolean lowMemory; 2259 2260 /** @hide */ 2261 public long hiddenAppThreshold; 2262 /** @hide */ 2263 public long secondaryServerThreshold; 2264 /** @hide */ 2265 public long visibleAppThreshold; 2266 /** @hide */ 2267 public long foregroundAppThreshold; 2268 2269 public MemoryInfo() { 2270 } 2271 2272 public int describeContents() { 2273 return 0; 2274 } 2275 2276 public void writeToParcel(Parcel dest, int flags) { 2277 dest.writeLong(availMem); 2278 dest.writeLong(totalMem); 2279 dest.writeLong(threshold); 2280 dest.writeInt(lowMemory ? 1 : 0); 2281 dest.writeLong(hiddenAppThreshold); 2282 dest.writeLong(secondaryServerThreshold); 2283 dest.writeLong(visibleAppThreshold); 2284 dest.writeLong(foregroundAppThreshold); 2285 } 2286 2287 public void readFromParcel(Parcel source) { 2288 availMem = source.readLong(); 2289 totalMem = source.readLong(); 2290 threshold = source.readLong(); 2291 lowMemory = source.readInt() != 0; 2292 hiddenAppThreshold = source.readLong(); 2293 secondaryServerThreshold = source.readLong(); 2294 visibleAppThreshold = source.readLong(); 2295 foregroundAppThreshold = source.readLong(); 2296 } 2297 2298 public static final Creator<MemoryInfo> CREATOR 2299 = new Creator<MemoryInfo>() { 2300 public MemoryInfo createFromParcel(Parcel source) { 2301 return new MemoryInfo(source); 2302 } 2303 public MemoryInfo[] newArray(int size) { 2304 return new MemoryInfo[size]; 2305 } 2306 }; 2307 2308 private MemoryInfo(Parcel source) { 2309 readFromParcel(source); 2310 } 2311 } 2312 2313 /** 2314 * Return general information about the memory state of the system. This 2315 * can be used to help decide how to manage your own memory, though note 2316 * that polling is not recommended and 2317 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2318 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2319 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2320 * level of your process as needed, which gives a better hint for how to 2321 * manage its memory. 2322 */ 2323 public void getMemoryInfo(MemoryInfo outInfo) { 2324 try { 2325 ActivityManagerNative.getDefault().getMemoryInfo(outInfo); 2326 } catch (RemoteException e) { 2327 throw e.rethrowFromSystemServer(); 2328 } 2329 } 2330 2331 /** 2332 * Information you can retrieve about an ActivityStack in the system. 2333 * @hide 2334 */ 2335 public static class StackInfo implements Parcelable { 2336 public int stackId; 2337 public Rect bounds = new Rect(); 2338 public int[] taskIds; 2339 public String[] taskNames; 2340 public Rect[] taskBounds; 2341 public int[] taskUserIds; 2342 public int displayId; 2343 public int userId; 2344 2345 @Override 2346 public int describeContents() { 2347 return 0; 2348 } 2349 2350 @Override 2351 public void writeToParcel(Parcel dest, int flags) { 2352 dest.writeInt(stackId); 2353 dest.writeInt(bounds.left); 2354 dest.writeInt(bounds.top); 2355 dest.writeInt(bounds.right); 2356 dest.writeInt(bounds.bottom); 2357 dest.writeIntArray(taskIds); 2358 dest.writeStringArray(taskNames); 2359 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2360 dest.writeInt(boundsCount); 2361 for (int i = 0; i < boundsCount; i++) { 2362 dest.writeInt(taskBounds[i].left); 2363 dest.writeInt(taskBounds[i].top); 2364 dest.writeInt(taskBounds[i].right); 2365 dest.writeInt(taskBounds[i].bottom); 2366 } 2367 dest.writeIntArray(taskUserIds); 2368 dest.writeInt(displayId); 2369 dest.writeInt(userId); 2370 } 2371 2372 public void readFromParcel(Parcel source) { 2373 stackId = source.readInt(); 2374 bounds = new Rect( 2375 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2376 taskIds = source.createIntArray(); 2377 taskNames = source.createStringArray(); 2378 final int boundsCount = source.readInt(); 2379 if (boundsCount > 0) { 2380 taskBounds = new Rect[boundsCount]; 2381 for (int i = 0; i < boundsCount; i++) { 2382 taskBounds[i] = new Rect(); 2383 taskBounds[i].set( 2384 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2385 } 2386 } else { 2387 taskBounds = null; 2388 } 2389 taskUserIds = source.createIntArray(); 2390 displayId = source.readInt(); 2391 userId = source.readInt(); 2392 } 2393 2394 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2395 @Override 2396 public StackInfo createFromParcel(Parcel source) { 2397 return new StackInfo(source); 2398 } 2399 @Override 2400 public StackInfo[] newArray(int size) { 2401 return new StackInfo[size]; 2402 } 2403 }; 2404 2405 public StackInfo() { 2406 } 2407 2408 private StackInfo(Parcel source) { 2409 readFromParcel(source); 2410 } 2411 2412 public String toString(String prefix) { 2413 StringBuilder sb = new StringBuilder(256); 2414 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2415 sb.append(" bounds="); sb.append(bounds.toShortString()); 2416 sb.append(" displayId="); sb.append(displayId); 2417 sb.append(" userId="); sb.append(userId); 2418 sb.append("\n"); 2419 prefix = prefix + " "; 2420 for (int i = 0; i < taskIds.length; ++i) { 2421 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2422 sb.append(": "); sb.append(taskNames[i]); 2423 if (taskBounds != null) { 2424 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2425 } 2426 sb.append(" userId=").append(taskUserIds[i]); 2427 sb.append("\n"); 2428 } 2429 return sb.toString(); 2430 } 2431 2432 @Override 2433 public String toString() { 2434 return toString(""); 2435 } 2436 } 2437 2438 /** 2439 * @hide 2440 */ 2441 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2442 try { 2443 return ActivityManagerNative.getDefault().clearApplicationUserData(packageName, 2444 observer, UserHandle.myUserId()); 2445 } catch (RemoteException e) { 2446 throw e.rethrowFromSystemServer(); 2447 } 2448 } 2449 2450 /** 2451 * Permits an application to erase its own data from disk. This is equivalent to 2452 * the user choosing to clear the app's data from within the device settings UI. It 2453 * erases all dynamic data associated with the app -- its private data and data in its 2454 * private area on external storage -- but does not remove the installed application 2455 * itself, nor any OBB files. 2456 * 2457 * @return {@code true} if the application successfully requested that the application's 2458 * data be erased; {@code false} otherwise. 2459 */ 2460 public boolean clearApplicationUserData() { 2461 return clearApplicationUserData(mContext.getPackageName(), null); 2462 } 2463 2464 2465 /** 2466 * Permits an application to get the persistent URI permissions granted to another. 2467 * 2468 * <p>Typically called by Settings. 2469 * 2470 * @param packageName application to look for the granted permissions 2471 * @return list of granted URI permissions 2472 * 2473 * @hide 2474 */ 2475 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2476 try { 2477 return ActivityManagerNative.getDefault().getGrantedUriPermissions(packageName, 2478 UserHandle.myUserId()); 2479 } catch (RemoteException e) { 2480 throw e.rethrowFromSystemServer(); 2481 } 2482 } 2483 2484 /** 2485 * Permits an application to clear the persistent URI permissions granted to another. 2486 * 2487 * <p>Typically called by Settings. 2488 * 2489 * @param packageName application to clear its granted permissions 2490 * 2491 * @hide 2492 */ 2493 public void clearGrantedUriPermissions(String packageName) { 2494 try { 2495 ActivityManagerNative.getDefault().clearGrantedUriPermissions(packageName, 2496 UserHandle.myUserId()); 2497 } catch (RemoteException e) { 2498 throw e.rethrowFromSystemServer(); 2499 } 2500 } 2501 2502 /** 2503 * Information you can retrieve about any processes that are in an error condition. 2504 */ 2505 public static class ProcessErrorStateInfo implements Parcelable { 2506 /** 2507 * Condition codes 2508 */ 2509 public static final int NO_ERROR = 0; 2510 public static final int CRASHED = 1; 2511 public static final int NOT_RESPONDING = 2; 2512 2513 /** 2514 * The condition that the process is in. 2515 */ 2516 public int condition; 2517 2518 /** 2519 * The process name in which the crash or error occurred. 2520 */ 2521 public String processName; 2522 2523 /** 2524 * The pid of this process; 0 if none 2525 */ 2526 public int pid; 2527 2528 /** 2529 * The kernel user-ID that has been assigned to this process; 2530 * currently this is not a unique ID (multiple applications can have 2531 * the same uid). 2532 */ 2533 public int uid; 2534 2535 /** 2536 * The activity name associated with the error, if known. May be null. 2537 */ 2538 public String tag; 2539 2540 /** 2541 * A short message describing the error condition. 2542 */ 2543 public String shortMsg; 2544 2545 /** 2546 * A long message describing the error condition. 2547 */ 2548 public String longMsg; 2549 2550 /** 2551 * The stack trace where the error originated. May be null. 2552 */ 2553 public String stackTrace; 2554 2555 /** 2556 * to be deprecated: This value will always be null. 2557 */ 2558 public byte[] crashData = null; 2559 2560 public ProcessErrorStateInfo() { 2561 } 2562 2563 @Override 2564 public int describeContents() { 2565 return 0; 2566 } 2567 2568 @Override 2569 public void writeToParcel(Parcel dest, int flags) { 2570 dest.writeInt(condition); 2571 dest.writeString(processName); 2572 dest.writeInt(pid); 2573 dest.writeInt(uid); 2574 dest.writeString(tag); 2575 dest.writeString(shortMsg); 2576 dest.writeString(longMsg); 2577 dest.writeString(stackTrace); 2578 } 2579 2580 public void readFromParcel(Parcel source) { 2581 condition = source.readInt(); 2582 processName = source.readString(); 2583 pid = source.readInt(); 2584 uid = source.readInt(); 2585 tag = source.readString(); 2586 shortMsg = source.readString(); 2587 longMsg = source.readString(); 2588 stackTrace = source.readString(); 2589 } 2590 2591 public static final Creator<ProcessErrorStateInfo> CREATOR = 2592 new Creator<ProcessErrorStateInfo>() { 2593 public ProcessErrorStateInfo createFromParcel(Parcel source) { 2594 return new ProcessErrorStateInfo(source); 2595 } 2596 public ProcessErrorStateInfo[] newArray(int size) { 2597 return new ProcessErrorStateInfo[size]; 2598 } 2599 }; 2600 2601 private ProcessErrorStateInfo(Parcel source) { 2602 readFromParcel(source); 2603 } 2604 } 2605 2606 /** 2607 * Returns a list of any processes that are currently in an error condition. The result 2608 * will be null if all processes are running properly at this time. 2609 * 2610 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 2611 * current error conditions (it will not return an empty list). This list ordering is not 2612 * specified. 2613 */ 2614 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 2615 try { 2616 return ActivityManagerNative.getDefault().getProcessesInErrorState(); 2617 } catch (RemoteException e) { 2618 throw e.rethrowFromSystemServer(); 2619 } 2620 } 2621 2622 /** 2623 * Information you can retrieve about a running process. 2624 */ 2625 public static class RunningAppProcessInfo implements Parcelable { 2626 /** 2627 * The name of the process that this object is associated with 2628 */ 2629 public String processName; 2630 2631 /** 2632 * The pid of this process; 0 if none 2633 */ 2634 public int pid; 2635 2636 /** 2637 * The user id of this process. 2638 */ 2639 public int uid; 2640 2641 /** 2642 * All packages that have been loaded into the process. 2643 */ 2644 public String pkgList[]; 2645 2646 /** 2647 * Constant for {@link #flags}: this is an app that is unable to 2648 * correctly save its state when going to the background, 2649 * so it can not be killed while in the background. 2650 * @hide 2651 */ 2652 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 2653 2654 /** 2655 * Constant for {@link #flags}: this process is associated with a 2656 * persistent system app. 2657 * @hide 2658 */ 2659 public static final int FLAG_PERSISTENT = 1<<1; 2660 2661 /** 2662 * Constant for {@link #flags}: this process is associated with a 2663 * persistent system app. 2664 * @hide 2665 */ 2666 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 2667 2668 /** 2669 * Flags of information. May be any of 2670 * {@link #FLAG_CANT_SAVE_STATE}. 2671 * @hide 2672 */ 2673 public int flags; 2674 2675 /** 2676 * Last memory trim level reported to the process: corresponds to 2677 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2678 * ComponentCallbacks2.onTrimMemory(int)}. 2679 */ 2680 public int lastTrimLevel; 2681 2682 /** 2683 * Constant for {@link #importance}: This process is running the 2684 * foreground UI; that is, it is the thing currently at the top of the screen 2685 * that the user is interacting with. 2686 */ 2687 public static final int IMPORTANCE_FOREGROUND = 100; 2688 2689 /** 2690 * Constant for {@link #importance}: This process is running a foreground 2691 * service, for example to perform music playback even while the user is 2692 * not immediately in the app. This generally indicates that the process 2693 * is doing something the user actively cares about. 2694 */ 2695 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 2696 2697 /** 2698 * Constant for {@link #importance}: This process is running the foreground 2699 * UI, but the device is asleep so it is not visible to the user. This means 2700 * the user is not really aware of the process, because they can not see or 2701 * interact with it, but it is quite important because it what they expect to 2702 * return to once unlocking the device. 2703 */ 2704 public static final int IMPORTANCE_TOP_SLEEPING = 150; 2705 2706 /** 2707 * Constant for {@link #importance}: This process is running something 2708 * that is actively visible to the user, though not in the immediate 2709 * foreground. This may be running a window that is behind the current 2710 * foreground (so paused and with its state saved, not interacting with 2711 * the user, but visible to them to some degree); it may also be running 2712 * other services under the system's control that it inconsiders important. 2713 */ 2714 public static final int IMPORTANCE_VISIBLE = 200; 2715 2716 /** 2717 * Constant for {@link #importance}: This process is not something the user 2718 * is directly aware of, but is otherwise perceptable to them to some degree. 2719 */ 2720 public static final int IMPORTANCE_PERCEPTIBLE = 130; 2721 2722 /** 2723 * Constant for {@link #importance}: This process is running an 2724 * application that can not save its state, and thus can't be killed 2725 * while in the background. 2726 * @hide 2727 */ 2728 public static final int IMPORTANCE_CANT_SAVE_STATE = 170; 2729 2730 /** 2731 * Constant for {@link #importance}: This process is contains services 2732 * that should remain running. These are background services apps have 2733 * started, not something the user is aware of, so they may be killed by 2734 * the system relatively freely (though it is generally desired that they 2735 * stay running as long as they want to). 2736 */ 2737 public static final int IMPORTANCE_SERVICE = 300; 2738 2739 /** 2740 * Constant for {@link #importance}: This process process contains 2741 * background code that is expendable. 2742 */ 2743 public static final int IMPORTANCE_BACKGROUND = 400; 2744 2745 /** 2746 * Constant for {@link #importance}: This process is empty of any 2747 * actively running code. 2748 */ 2749 public static final int IMPORTANCE_EMPTY = 500; 2750 2751 /** 2752 * Constant for {@link #importance}: This process does not exist. 2753 */ 2754 public static final int IMPORTANCE_GONE = 1000; 2755 2756 /** @hide */ 2757 public static int procStateToImportance(int procState) { 2758 if (procState == PROCESS_STATE_NONEXISTENT) { 2759 return IMPORTANCE_GONE; 2760 } else if (procState >= PROCESS_STATE_HOME) { 2761 return IMPORTANCE_BACKGROUND; 2762 } else if (procState >= PROCESS_STATE_SERVICE) { 2763 return IMPORTANCE_SERVICE; 2764 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 2765 return IMPORTANCE_CANT_SAVE_STATE; 2766 } else if (procState >= PROCESS_STATE_IMPORTANT_BACKGROUND) { 2767 return IMPORTANCE_PERCEPTIBLE; 2768 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 2769 return IMPORTANCE_VISIBLE; 2770 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 2771 return IMPORTANCE_TOP_SLEEPING; 2772 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 2773 return IMPORTANCE_FOREGROUND_SERVICE; 2774 } else { 2775 return IMPORTANCE_FOREGROUND; 2776 } 2777 } 2778 2779 /** 2780 * The relative importance level that the system places on this 2781 * process. May be one of {@link #IMPORTANCE_FOREGROUND}, 2782 * {@link #IMPORTANCE_VISIBLE}, {@link #IMPORTANCE_SERVICE}, 2783 * {@link #IMPORTANCE_BACKGROUND}, or {@link #IMPORTANCE_EMPTY}. These 2784 * constants are numbered so that "more important" values are always 2785 * smaller than "less important" values. 2786 */ 2787 public int importance; 2788 2789 /** 2790 * An additional ordering within a particular {@link #importance} 2791 * category, providing finer-grained information about the relative 2792 * utility of processes within a category. This number means nothing 2793 * except that a smaller values are more recently used (and thus 2794 * more important). Currently an LRU value is only maintained for 2795 * the {@link #IMPORTANCE_BACKGROUND} category, though others may 2796 * be maintained in the future. 2797 */ 2798 public int lru; 2799 2800 /** 2801 * Constant for {@link #importanceReasonCode}: nothing special has 2802 * been specified for the reason for this level. 2803 */ 2804 public static final int REASON_UNKNOWN = 0; 2805 2806 /** 2807 * Constant for {@link #importanceReasonCode}: one of the application's 2808 * content providers is being used by another process. The pid of 2809 * the client process is in {@link #importanceReasonPid} and the 2810 * target provider in this process is in 2811 * {@link #importanceReasonComponent}. 2812 */ 2813 public static final int REASON_PROVIDER_IN_USE = 1; 2814 2815 /** 2816 * Constant for {@link #importanceReasonCode}: one of the application's 2817 * content providers is being used by another process. The pid of 2818 * the client process is in {@link #importanceReasonPid} and the 2819 * target provider in this process is in 2820 * {@link #importanceReasonComponent}. 2821 */ 2822 public static final int REASON_SERVICE_IN_USE = 2; 2823 2824 /** 2825 * The reason for {@link #importance}, if any. 2826 */ 2827 public int importanceReasonCode; 2828 2829 /** 2830 * For the specified values of {@link #importanceReasonCode}, this 2831 * is the process ID of the other process that is a client of this 2832 * process. This will be 0 if no other process is using this one. 2833 */ 2834 public int importanceReasonPid; 2835 2836 /** 2837 * For the specified values of {@link #importanceReasonCode}, this 2838 * is the name of the component that is being used in this process. 2839 */ 2840 public ComponentName importanceReasonComponent; 2841 2842 /** 2843 * When {@link #importanceReasonPid} is non-0, this is the importance 2844 * of the other pid. @hide 2845 */ 2846 public int importanceReasonImportance; 2847 2848 /** 2849 * Current process state, as per PROCESS_STATE_* constants. 2850 * @hide 2851 */ 2852 public int processState; 2853 2854 public RunningAppProcessInfo() { 2855 importance = IMPORTANCE_FOREGROUND; 2856 importanceReasonCode = REASON_UNKNOWN; 2857 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 2858 } 2859 2860 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 2861 processName = pProcessName; 2862 pid = pPid; 2863 pkgList = pArr; 2864 } 2865 2866 public int describeContents() { 2867 return 0; 2868 } 2869 2870 public void writeToParcel(Parcel dest, int flags) { 2871 dest.writeString(processName); 2872 dest.writeInt(pid); 2873 dest.writeInt(uid); 2874 dest.writeStringArray(pkgList); 2875 dest.writeInt(this.flags); 2876 dest.writeInt(lastTrimLevel); 2877 dest.writeInt(importance); 2878 dest.writeInt(lru); 2879 dest.writeInt(importanceReasonCode); 2880 dest.writeInt(importanceReasonPid); 2881 ComponentName.writeToParcel(importanceReasonComponent, dest); 2882 dest.writeInt(importanceReasonImportance); 2883 dest.writeInt(processState); 2884 } 2885 2886 public void readFromParcel(Parcel source) { 2887 processName = source.readString(); 2888 pid = source.readInt(); 2889 uid = source.readInt(); 2890 pkgList = source.readStringArray(); 2891 flags = source.readInt(); 2892 lastTrimLevel = source.readInt(); 2893 importance = source.readInt(); 2894 lru = source.readInt(); 2895 importanceReasonCode = source.readInt(); 2896 importanceReasonPid = source.readInt(); 2897 importanceReasonComponent = ComponentName.readFromParcel(source); 2898 importanceReasonImportance = source.readInt(); 2899 processState = source.readInt(); 2900 } 2901 2902 public static final Creator<RunningAppProcessInfo> CREATOR = 2903 new Creator<RunningAppProcessInfo>() { 2904 public RunningAppProcessInfo createFromParcel(Parcel source) { 2905 return new RunningAppProcessInfo(source); 2906 } 2907 public RunningAppProcessInfo[] newArray(int size) { 2908 return new RunningAppProcessInfo[size]; 2909 } 2910 }; 2911 2912 private RunningAppProcessInfo(Parcel source) { 2913 readFromParcel(source); 2914 } 2915 } 2916 2917 /** 2918 * Returns a list of application processes installed on external media 2919 * that are running on the device. 2920 * 2921 * <p><b>Note: this method is only intended for debugging or building 2922 * a user-facing process management UI.</b></p> 2923 * 2924 * @return Returns a list of ApplicationInfo records, or null if none 2925 * This list ordering is not specified. 2926 * @hide 2927 */ 2928 public List<ApplicationInfo> getRunningExternalApplications() { 2929 try { 2930 return ActivityManagerNative.getDefault().getRunningExternalApplications(); 2931 } catch (RemoteException e) { 2932 throw e.rethrowFromSystemServer(); 2933 } 2934 } 2935 2936 /** 2937 * Sets the memory trim mode for a process and schedules a memory trim operation. 2938 * 2939 * <p><b>Note: this method is only intended for testing framework.</b></p> 2940 * 2941 * @return Returns true if successful. 2942 * @hide 2943 */ 2944 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 2945 try { 2946 return ActivityManagerNative.getDefault().setProcessMemoryTrimLevel(process, userId, 2947 level); 2948 } catch (RemoteException e) { 2949 throw e.rethrowFromSystemServer(); 2950 } 2951 } 2952 2953 /** 2954 * Returns a list of application processes that are running on the device. 2955 * 2956 * <p><b>Note: this method is only intended for debugging or building 2957 * a user-facing process management UI.</b></p> 2958 * 2959 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 2960 * running processes (it will not return an empty list). This list ordering is not 2961 * specified. 2962 */ 2963 public List<RunningAppProcessInfo> getRunningAppProcesses() { 2964 try { 2965 return ActivityManagerNative.getDefault().getRunningAppProcesses(); 2966 } catch (RemoteException e) { 2967 throw e.rethrowFromSystemServer(); 2968 } 2969 } 2970 2971 /** 2972 * Return the importance of a given package name, based on the processes that are 2973 * currently running. The return value is one of the importance constants defined 2974 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 2975 * processes that this package has code running inside of. If there are no processes 2976 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 2977 * @hide 2978 */ 2979 @SystemApi 2980 public int getPackageImportance(String packageName) { 2981 try { 2982 int procState = ActivityManagerNative.getDefault().getPackageProcessState(packageName, 2983 mContext.getOpPackageName()); 2984 return RunningAppProcessInfo.procStateToImportance(procState); 2985 } catch (RemoteException e) { 2986 throw e.rethrowFromSystemServer(); 2987 } 2988 } 2989 2990 /** 2991 * Return global memory state information for the calling process. This 2992 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 2993 * only fields that will be filled in are 2994 * {@link RunningAppProcessInfo#pid}, 2995 * {@link RunningAppProcessInfo#uid}, 2996 * {@link RunningAppProcessInfo#lastTrimLevel}, 2997 * {@link RunningAppProcessInfo#importance}, 2998 * {@link RunningAppProcessInfo#lru}, and 2999 * {@link RunningAppProcessInfo#importanceReasonCode}. 3000 */ 3001 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3002 try { 3003 ActivityManagerNative.getDefault().getMyMemoryState(outState); 3004 } catch (RemoteException e) { 3005 throw e.rethrowFromSystemServer(); 3006 } 3007 } 3008 3009 /** 3010 * Return information about the memory usage of one or more processes. 3011 * 3012 * <p><b>Note: this method is only intended for debugging or building 3013 * a user-facing process management UI.</b></p> 3014 * 3015 * @param pids The pids of the processes whose memory usage is to be 3016 * retrieved. 3017 * @return Returns an array of memory information, one for each 3018 * requested pid. 3019 */ 3020 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3021 try { 3022 return ActivityManagerNative.getDefault().getProcessMemoryInfo(pids); 3023 } catch (RemoteException e) { 3024 throw e.rethrowFromSystemServer(); 3025 } 3026 } 3027 3028 /** 3029 * @deprecated This is now just a wrapper for 3030 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3031 * is no longer available to applications because it allows them to 3032 * break other applications by removing their alarms, stopping their 3033 * services, etc. 3034 */ 3035 @Deprecated 3036 public void restartPackage(String packageName) { 3037 killBackgroundProcesses(packageName); 3038 } 3039 3040 /** 3041 * Have the system immediately kill all background processes associated 3042 * with the given package. This is the same as the kernel killing those 3043 * processes to reclaim memory; the system will take care of restarting 3044 * these processes in the future as needed. 3045 * 3046 * <p>You must hold the permission 3047 * {@link android.Manifest.permission#KILL_BACKGROUND_PROCESSES} to be able to 3048 * call this method. 3049 * 3050 * @param packageName The name of the package whose processes are to 3051 * be killed. 3052 */ 3053 public void killBackgroundProcesses(String packageName) { 3054 try { 3055 ActivityManagerNative.getDefault().killBackgroundProcesses(packageName, 3056 UserHandle.myUserId()); 3057 } catch (RemoteException e) { 3058 throw e.rethrowFromSystemServer(); 3059 } 3060 } 3061 3062 /** 3063 * Kills the specified UID. 3064 * @param uid The UID to kill. 3065 * @param reason The reason for the kill. 3066 * 3067 * @hide 3068 */ 3069 @RequiresPermission(Manifest.permission.KILL_UID) 3070 public void killUid(int uid, String reason) { 3071 try { 3072 ActivityManagerNative.getDefault().killUid(UserHandle.getAppId(uid), 3073 UserHandle.getUserId(uid), reason); 3074 } catch (RemoteException e) { 3075 throw e.rethrowFromSystemServer(); 3076 } 3077 } 3078 3079 /** 3080 * Have the system perform a force stop of everything associated with 3081 * the given application package. All processes that share its uid 3082 * will be killed, all services it has running stopped, all activities 3083 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3084 * broadcast will be sent, so that any of its registered alarms can 3085 * be stopped, notifications removed, etc. 3086 * 3087 * <p>You must hold the permission 3088 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3089 * call this method. 3090 * 3091 * @param packageName The name of the package to be stopped. 3092 * @param userId The user for which the running package is to be stopped. 3093 * 3094 * @hide This is not available to third party applications due to 3095 * it allowing them to break other applications by stopping their 3096 * services, removing their alarms, etc. 3097 */ 3098 public void forceStopPackageAsUser(String packageName, int userId) { 3099 try { 3100 ActivityManagerNative.getDefault().forceStopPackage(packageName, userId); 3101 } catch (RemoteException e) { 3102 throw e.rethrowFromSystemServer(); 3103 } 3104 } 3105 3106 /** 3107 * @see #forceStopPackageAsUser(String, int) 3108 * @hide 3109 */ 3110 public void forceStopPackage(String packageName) { 3111 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3112 } 3113 3114 /** 3115 * Get the device configuration attributes. 3116 */ 3117 public ConfigurationInfo getDeviceConfigurationInfo() { 3118 try { 3119 return ActivityManagerNative.getDefault().getDeviceConfigurationInfo(); 3120 } catch (RemoteException e) { 3121 throw e.rethrowFromSystemServer(); 3122 } 3123 } 3124 3125 /** 3126 * Get the preferred density of icons for the launcher. This is used when 3127 * custom drawables are created (e.g., for shortcuts). 3128 * 3129 * @return density in terms of DPI 3130 */ 3131 public int getLauncherLargeIconDensity() { 3132 final Resources res = mContext.getResources(); 3133 final int density = res.getDisplayMetrics().densityDpi; 3134 final int sw = res.getConfiguration().smallestScreenWidthDp; 3135 3136 if (sw < 600) { 3137 // Smaller than approx 7" tablets, use the regular icon size. 3138 return density; 3139 } 3140 3141 switch (density) { 3142 case DisplayMetrics.DENSITY_LOW: 3143 return DisplayMetrics.DENSITY_MEDIUM; 3144 case DisplayMetrics.DENSITY_MEDIUM: 3145 return DisplayMetrics.DENSITY_HIGH; 3146 case DisplayMetrics.DENSITY_TV: 3147 return DisplayMetrics.DENSITY_XHIGH; 3148 case DisplayMetrics.DENSITY_HIGH: 3149 return DisplayMetrics.DENSITY_XHIGH; 3150 case DisplayMetrics.DENSITY_XHIGH: 3151 return DisplayMetrics.DENSITY_XXHIGH; 3152 case DisplayMetrics.DENSITY_XXHIGH: 3153 return DisplayMetrics.DENSITY_XHIGH * 2; 3154 default: 3155 // The density is some abnormal value. Return some other 3156 // abnormal value that is a reasonable scaling of it. 3157 return (int)((density*1.5f)+.5f); 3158 } 3159 } 3160 3161 /** 3162 * Get the preferred launcher icon size. This is used when custom drawables 3163 * are created (e.g., for shortcuts). 3164 * 3165 * @return dimensions of square icons in terms of pixels 3166 */ 3167 public int getLauncherLargeIconSize() { 3168 return getLauncherLargeIconSizeInner(mContext); 3169 } 3170 3171 static int getLauncherLargeIconSizeInner(Context context) { 3172 final Resources res = context.getResources(); 3173 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3174 final int sw = res.getConfiguration().smallestScreenWidthDp; 3175 3176 if (sw < 600) { 3177 // Smaller than approx 7" tablets, use the regular icon size. 3178 return size; 3179 } 3180 3181 final int density = res.getDisplayMetrics().densityDpi; 3182 3183 switch (density) { 3184 case DisplayMetrics.DENSITY_LOW: 3185 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3186 case DisplayMetrics.DENSITY_MEDIUM: 3187 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3188 case DisplayMetrics.DENSITY_TV: 3189 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3190 case DisplayMetrics.DENSITY_HIGH: 3191 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3192 case DisplayMetrics.DENSITY_XHIGH: 3193 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3194 case DisplayMetrics.DENSITY_XXHIGH: 3195 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3196 default: 3197 // The density is some abnormal value. Return some other 3198 // abnormal value that is a reasonable scaling of it. 3199 return (int)((size*1.5f) + .5f); 3200 } 3201 } 3202 3203 /** 3204 * Returns "true" if the user interface is currently being messed with 3205 * by a monkey. 3206 */ 3207 public static boolean isUserAMonkey() { 3208 try { 3209 return ActivityManagerNative.getDefault().isUserAMonkey(); 3210 } catch (RemoteException e) { 3211 throw e.rethrowFromSystemServer(); 3212 } 3213 } 3214 3215 /** 3216 * Returns "true" if device is running in a test harness. 3217 */ 3218 public static boolean isRunningInTestHarness() { 3219 return SystemProperties.getBoolean("ro.test_harness", false); 3220 } 3221 3222 /** 3223 * Returns the launch count of each installed package. 3224 * 3225 * @hide 3226 */ 3227 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3228 try { 3229 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3230 ServiceManager.getService("usagestats")); 3231 if (usageStatsService == null) { 3232 return new HashMap<String, Integer>(); 3233 } 3234 3235 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3236 ActivityThread.currentPackageName()); 3237 if (allPkgUsageStats == null) { 3238 return new HashMap<String, Integer>(); 3239 } 3240 3241 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3242 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3243 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3244 } 3245 3246 return launchCounts; 3247 } catch (RemoteException e) { 3248 Log.w(TAG, "Could not query launch counts", e); 3249 return new HashMap<String, Integer>(); 3250 } 3251 }*/ 3252 3253 /** @hide */ 3254 public static int checkComponentPermission(String permission, int uid, 3255 int owningUid, boolean exported) { 3256 // Root, system server get to do everything. 3257 final int appId = UserHandle.getAppId(uid); 3258 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3259 return PackageManager.PERMISSION_GRANTED; 3260 } 3261 // Isolated processes don't get any permissions. 3262 if (UserHandle.isIsolated(uid)) { 3263 return PackageManager.PERMISSION_DENIED; 3264 } 3265 // If there is a uid that owns whatever is being accessed, it has 3266 // blanket access to it regardless of the permissions it requires. 3267 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3268 return PackageManager.PERMISSION_GRANTED; 3269 } 3270 // If the target is not exported, then nobody else can get to it. 3271 if (!exported) { 3272 /* 3273 RuntimeException here = new RuntimeException("here"); 3274 here.fillInStackTrace(); 3275 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3276 here); 3277 */ 3278 return PackageManager.PERMISSION_DENIED; 3279 } 3280 if (permission == null) { 3281 return PackageManager.PERMISSION_GRANTED; 3282 } 3283 try { 3284 return AppGlobals.getPackageManager() 3285 .checkUidPermission(permission, uid); 3286 } catch (RemoteException e) { 3287 throw e.rethrowFromSystemServer(); 3288 } 3289 } 3290 3291 /** @hide */ 3292 public static int checkUidPermission(String permission, int uid) { 3293 try { 3294 return AppGlobals.getPackageManager() 3295 .checkUidPermission(permission, uid); 3296 } catch (RemoteException e) { 3297 throw e.rethrowFromSystemServer(); 3298 } 3299 } 3300 3301 /** 3302 * @hide 3303 * Helper for dealing with incoming user arguments to system service calls. 3304 * Takes care of checking permissions and converting USER_CURRENT to the 3305 * actual current user. 3306 * 3307 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3308 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3309 * @param userId The user id argument supplied by the caller -- this is the user 3310 * they want to run as. 3311 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3312 * to get a USER_ALL returned and deal with it correctly. If false, 3313 * an exception will be thrown if USER_ALL is supplied. 3314 * @param requireFull If true, the caller must hold 3315 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3316 * different user than their current process; otherwise they must hold 3317 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3318 * @param name Optional textual name of the incoming call; only for generating error messages. 3319 * @param callerPackage Optional package name of caller; only for error messages. 3320 * 3321 * @return Returns the user ID that the call should run as. Will always be a concrete 3322 * user number, unless <var>allowAll</var> is true in which case it could also be 3323 * USER_ALL. 3324 */ 3325 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3326 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3327 if (UserHandle.getUserId(callingUid) == userId) { 3328 return userId; 3329 } 3330 try { 3331 return ActivityManagerNative.getDefault().handleIncomingUser(callingPid, 3332 callingUid, userId, allowAll, requireFull, name, callerPackage); 3333 } catch (RemoteException e) { 3334 throw e.rethrowFromSystemServer(); 3335 } 3336 } 3337 3338 /** 3339 * Gets the userId of the current foreground user. Requires system permissions. 3340 * @hide 3341 */ 3342 @SystemApi 3343 public static int getCurrentUser() { 3344 UserInfo ui; 3345 try { 3346 ui = ActivityManagerNative.getDefault().getCurrentUser(); 3347 return ui != null ? ui.id : 0; 3348 } catch (RemoteException e) { 3349 throw e.rethrowFromSystemServer(); 3350 } 3351 } 3352 3353 /** 3354 * @param userid the user's id. Zero indicates the default user. 3355 * @hide 3356 */ 3357 public boolean switchUser(int userid) { 3358 try { 3359 return ActivityManagerNative.getDefault().switchUser(userid); 3360 } catch (RemoteException e) { 3361 throw e.rethrowFromSystemServer(); 3362 } 3363 } 3364 3365 /** 3366 * Logs out current current foreground user by switching to the system user and stopping the 3367 * user being switched from. 3368 * @hide 3369 */ 3370 public static void logoutCurrentUser() { 3371 int currentUser = ActivityManager.getCurrentUser(); 3372 if (currentUser != UserHandle.USER_SYSTEM) { 3373 try { 3374 ActivityManagerNative.getDefault().switchUser(UserHandle.USER_SYSTEM); 3375 ActivityManagerNative.getDefault().stopUser(currentUser, /* force= */ false, null); 3376 } catch (RemoteException e) { 3377 e.rethrowFromSystemServer(); 3378 } 3379 } 3380 } 3381 3382 /** {@hide} */ 3383 public static final int FLAG_OR_STOPPED = 1 << 0; 3384 /** {@hide} */ 3385 public static final int FLAG_AND_LOCKED = 1 << 1; 3386 /** {@hide} */ 3387 public static final int FLAG_AND_UNLOCKED = 1 << 2; 3388 3389 /** 3390 * Return whether the given user is actively running. This means that 3391 * the user is in the "started" state, not "stopped" -- it is currently 3392 * allowed to run code through scheduled alarms, receiving broadcasts, 3393 * etc. A started user may be either the current foreground user or a 3394 * background user; the result here does not distinguish between the two. 3395 * @param userid the user's id. Zero indicates the default user. 3396 * @hide 3397 */ 3398 public boolean isUserRunning(int userId) { 3399 try { 3400 return ActivityManagerNative.getDefault().isUserRunning(userId, 0); 3401 } catch (RemoteException e) { 3402 throw e.rethrowFromSystemServer(); 3403 } 3404 } 3405 3406 /** {@hide} */ 3407 public boolean isUserRunningAndLocked(int userId) { 3408 try { 3409 return ActivityManagerNative.getDefault().isUserRunning(userId, 3410 ActivityManager.FLAG_AND_LOCKED); 3411 } catch (RemoteException e) { 3412 throw e.rethrowFromSystemServer(); 3413 } 3414 } 3415 3416 /** {@hide} */ 3417 public boolean isUserRunningAndUnlocked(int userId) { 3418 try { 3419 return ActivityManagerNative.getDefault().isUserRunning(userId, 3420 ActivityManager.FLAG_AND_UNLOCKED); 3421 } catch (RemoteException e) { 3422 throw e.rethrowFromSystemServer(); 3423 } 3424 } 3425 3426 /** {@hide} */ 3427 public boolean isVrModePackageEnabled(ComponentName component) { 3428 try { 3429 return ActivityManagerNative.getDefault().isVrModePackageEnabled(component); 3430 } catch (RemoteException e) { 3431 throw e.rethrowFromSystemServer(); 3432 } 3433 } 3434 3435 /** 3436 * Perform a system dump of various state associated with the given application 3437 * package name. This call blocks while the dump is being performed, so should 3438 * not be done on a UI thread. The data will be written to the given file 3439 * descriptor as text. An application must hold the 3440 * {@link android.Manifest.permission#DUMP} permission to make this call. 3441 * @param fd The file descriptor that the dump should be written to. The file 3442 * descriptor is <em>not</em> closed by this function; the caller continues to 3443 * own it. 3444 * @param packageName The name of the package that is to be dumped. 3445 */ 3446 public void dumpPackageState(FileDescriptor fd, String packageName) { 3447 dumpPackageStateStatic(fd, packageName); 3448 } 3449 3450 /** 3451 * @hide 3452 */ 3453 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 3454 FileOutputStream fout = new FileOutputStream(fd); 3455 PrintWriter pw = new FastPrintWriter(fout); 3456 dumpService(pw, fd, "package", new String[] { packageName }); 3457 pw.println(); 3458 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 3459 "-a", "package", packageName }); 3460 pw.println(); 3461 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 3462 pw.println(); 3463 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 3464 pw.println(); 3465 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 3466 pw.println(); 3467 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 3468 pw.flush(); 3469 } 3470 3471 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 3472 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 3473 IBinder service = ServiceManager.checkService(name); 3474 if (service == null) { 3475 pw.println(" (Service not found)"); 3476 return; 3477 } 3478 TransferPipe tp = null; 3479 try { 3480 pw.flush(); 3481 tp = new TransferPipe(); 3482 tp.setBufferPrefix(" "); 3483 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 3484 tp.go(fd, 10000); 3485 } catch (Throwable e) { 3486 if (tp != null) { 3487 tp.kill(); 3488 } 3489 pw.println("Failure dumping service:"); 3490 e.printStackTrace(pw); 3491 } 3492 } 3493 3494 /** 3495 * Request that the system start watching for the calling process to exceed a pss 3496 * size as given here. Once called, the system will look for any occasions where it 3497 * sees the associated process with a larger pss size and, when this happens, automatically 3498 * pull a heap dump from it and allow the user to share the data. Note that this request 3499 * continues running even if the process is killed and restarted. To remove the watch, 3500 * use {@link #clearWatchHeapLimit()}. 3501 * 3502 * <p>This API only work if the calling process has been marked as 3503 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 3504 * (userdebug or eng) build.</p> 3505 * 3506 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 3507 * handle heap limit reports themselves.</p> 3508 * 3509 * @param pssSize The size in bytes to set the limit at. 3510 */ 3511 public void setWatchHeapLimit(long pssSize) { 3512 try { 3513 ActivityManagerNative.getDefault().setDumpHeapDebugLimit(null, 0, pssSize, 3514 mContext.getPackageName()); 3515 } catch (RemoteException e) { 3516 throw e.rethrowFromSystemServer(); 3517 } 3518 } 3519 3520 /** 3521 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 3522 * If your package has an activity handling this action, it will be launched with the 3523 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 3524 * match the activty must support this action and a MIME type of "*/*". 3525 */ 3526 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 3527 3528 /** 3529 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 3530 */ 3531 public void clearWatchHeapLimit() { 3532 try { 3533 ActivityManagerNative.getDefault().setDumpHeapDebugLimit(null, 0, 0, null); 3534 } catch (RemoteException e) { 3535 throw e.rethrowFromSystemServer(); 3536 } 3537 } 3538 3539 /** 3540 * @hide 3541 */ 3542 public void startLockTaskMode(int taskId) { 3543 try { 3544 ActivityManagerNative.getDefault().startLockTaskMode(taskId); 3545 } catch (RemoteException e) { 3546 throw e.rethrowFromSystemServer(); 3547 } 3548 } 3549 3550 /** 3551 * @hide 3552 */ 3553 public void stopLockTaskMode() { 3554 try { 3555 ActivityManagerNative.getDefault().stopLockTaskMode(); 3556 } catch (RemoteException e) { 3557 throw e.rethrowFromSystemServer(); 3558 } 3559 } 3560 3561 /** 3562 * Return whether currently in lock task mode. When in this mode 3563 * no new tasks can be created or switched to. 3564 * 3565 * @see Activity#startLockTask() 3566 * 3567 * @deprecated Use {@link #getLockTaskModeState} instead. 3568 */ 3569 public boolean isInLockTaskMode() { 3570 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 3571 } 3572 3573 /** 3574 * Return the current state of task locking. The three possible outcomes 3575 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 3576 * and {@link #LOCK_TASK_MODE_PINNED}. 3577 * 3578 * @see Activity#startLockTask() 3579 */ 3580 public int getLockTaskModeState() { 3581 try { 3582 return ActivityManagerNative.getDefault().getLockTaskModeState(); 3583 } catch (RemoteException e) { 3584 throw e.rethrowFromSystemServer(); 3585 } 3586 } 3587 3588 /** 3589 * The AppTask allows you to manage your own application's tasks. 3590 * See {@link android.app.ActivityManager#getAppTasks()} 3591 */ 3592 public static class AppTask { 3593 private IAppTask mAppTaskImpl; 3594 3595 /** @hide */ 3596 public AppTask(IAppTask task) { 3597 mAppTaskImpl = task; 3598 } 3599 3600 /** 3601 * Finishes all activities in this task and removes it from the recent tasks list. 3602 */ 3603 public void finishAndRemoveTask() { 3604 try { 3605 mAppTaskImpl.finishAndRemoveTask(); 3606 } catch (RemoteException e) { 3607 throw e.rethrowFromSystemServer(); 3608 } 3609 } 3610 3611 /** 3612 * Get the RecentTaskInfo associated with this task. 3613 * 3614 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 3615 */ 3616 public RecentTaskInfo getTaskInfo() { 3617 try { 3618 return mAppTaskImpl.getTaskInfo(); 3619 } catch (RemoteException e) { 3620 throw e.rethrowFromSystemServer(); 3621 } 3622 } 3623 3624 /** 3625 * Bring this task to the foreground. If it contains activities, they will be 3626 * brought to the foreground with it and their instances re-created if needed. 3627 * If it doesn't contain activities, the root activity of the task will be 3628 * re-launched. 3629 */ 3630 public void moveToFront() { 3631 try { 3632 mAppTaskImpl.moveToFront(); 3633 } catch (RemoteException e) { 3634 throw e.rethrowFromSystemServer(); 3635 } 3636 } 3637 3638 /** 3639 * Start an activity in this task. Brings the task to the foreground. If this task 3640 * is not currently active (that is, its id < 0), then a new activity for the given 3641 * Intent will be launched as the root of the task and the task brought to the 3642 * foreground. Otherwise, if this task is currently active and the Intent does not specify 3643 * an activity to launch in a new task, then a new activity for the given Intent will 3644 * be launched on top of the task and the task brought to the foreground. If this 3645 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 3646 * or would otherwise be launched in to a new task, then the activity not launched but 3647 * this task be brought to the foreground and a new intent delivered to the top 3648 * activity if appropriate. 3649 * 3650 * <p>In other words, you generally want to use an Intent here that does not specify 3651 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 3652 * and let the system do the right thing.</p> 3653 * 3654 * @param intent The Intent describing the new activity to be launched on the task. 3655 * @param options Optional launch options. 3656 * 3657 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 3658 */ 3659 public void startActivity(Context context, Intent intent, Bundle options) { 3660 ActivityThread thread = ActivityThread.currentActivityThread(); 3661 thread.getInstrumentation().execStartActivityFromAppTask(context, 3662 thread.getApplicationThread(), mAppTaskImpl, intent, options); 3663 } 3664 3665 /** 3666 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 3667 * Intent of this AppTask. 3668 * 3669 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 3670 * be set; otherwise, it will be cleared. 3671 */ 3672 public void setExcludeFromRecents(boolean exclude) { 3673 try { 3674 mAppTaskImpl.setExcludeFromRecents(exclude); 3675 } catch (RemoteException e) { 3676 throw e.rethrowFromSystemServer(); 3677 } 3678 } 3679 } 3680} 3681