ActivityManager.java revision b6403150af708e1a2b3e426e24005478ace0ab24
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.app; 18 19import android.Manifest; 20import android.annotation.IntDef; 21import android.annotation.NonNull; 22import android.annotation.Nullable; 23import android.annotation.RequiresPermission; 24import android.annotation.SystemApi; 25import android.graphics.Canvas; 26import android.graphics.Matrix; 27import android.graphics.Point; 28import android.os.BatteryStats; 29import android.os.IBinder; 30import android.os.ParcelFileDescriptor; 31 32import android.util.Log; 33import com.android.internal.app.ProcessStats; 34import com.android.internal.os.TransferPipe; 35import com.android.internal.util.FastPrintWriter; 36 37import android.content.ComponentName; 38import android.content.Context; 39import android.content.Intent; 40import android.content.UriPermission; 41import android.content.pm.ApplicationInfo; 42import android.content.pm.ConfigurationInfo; 43import android.content.pm.IPackageDataObserver; 44import android.content.pm.PackageManager; 45import android.content.pm.ParceledListSlice; 46import android.content.pm.UserInfo; 47import android.content.res.Resources; 48import android.graphics.Bitmap; 49import android.graphics.Color; 50import android.graphics.Rect; 51import android.os.Bundle; 52import android.os.Debug; 53import android.os.Handler; 54import android.os.Parcel; 55import android.os.Parcelable; 56import android.os.Process; 57import android.os.RemoteException; 58import android.os.ServiceManager; 59import android.os.SystemProperties; 60import android.os.UserHandle; 61import android.text.TextUtils; 62import android.util.DisplayMetrics; 63import android.util.Size; 64import android.util.Slog; 65 66import org.xmlpull.v1.XmlSerializer; 67 68import java.io.FileDescriptor; 69import java.io.FileOutputStream; 70import java.io.IOException; 71import java.io.PrintWriter; 72import java.lang.annotation.Retention; 73import java.lang.annotation.RetentionPolicy; 74import java.util.ArrayList; 75import java.util.List; 76 77/** 78 * Interact with the overall activities running in the system. 79 */ 80public class ActivityManager { 81 private static String TAG = "ActivityManager"; 82 83 private static int gMaxRecentTasks = -1; 84 85 private final Context mContext; 86 private final Handler mHandler; 87 88 /** 89 * Defines acceptable types of bugreports. 90 * @hide 91 */ 92 @Retention(RetentionPolicy.SOURCE) 93 @IntDef({ 94 BUGREPORT_OPTION_FULL, 95 BUGREPORT_OPTION_INTERACTIVE, 96 BUGREPORT_OPTION_REMOTE 97 }) 98 public @interface BugreportMode {} 99 /** 100 * Takes a bugreport without user interference (and hence causing less 101 * interference to the system), but includes all sections. 102 * @hide 103 */ 104 public static final int BUGREPORT_OPTION_FULL = 0; 105 /** 106 * Allows user to monitor progress and enter additional data; might not include all 107 * sections. 108 * @hide 109 */ 110 public static final int BUGREPORT_OPTION_INTERACTIVE = 1; 111 /** 112 * Takes a bugreport requested remotely by administrator of the Device Owner app, 113 * not the device's user. 114 * @hide 115 */ 116 public static final int BUGREPORT_OPTION_REMOTE = 2; 117 118 /** 119 * <a href="{@docRoot}guide/topics/manifest/meta-data-element.html">{@code 120 * <meta-data>}</a> name for a 'home' Activity that declares a package that is to be 121 * uninstalled in lieu of the declaring one. The package named here must be 122 * signed with the same certificate as the one declaring the {@code <meta-data>}. 123 */ 124 public static final String META_HOME_ALTERNATE = "android.app.home.alternate"; 125 126 /** 127 * Result for IActivityManager.startActivity: trying to start a background user 128 * activity that shouldn't be displayed for all users. 129 * @hide 130 */ 131 public static final int START_NOT_CURRENT_USER_ACTIVITY = -8; 132 133 /** 134 * Result for IActivityManager.startActivity: trying to start an activity under voice 135 * control when that activity does not support the VOICE category. 136 * @hide 137 */ 138 public static final int START_NOT_VOICE_COMPATIBLE = -7; 139 140 /** 141 * Result for IActivityManager.startActivity: an error where the 142 * start had to be canceled. 143 * @hide 144 */ 145 public static final int START_CANCELED = -6; 146 147 /** 148 * Result for IActivityManager.startActivity: an error where the 149 * thing being started is not an activity. 150 * @hide 151 */ 152 public static final int START_NOT_ACTIVITY = -5; 153 154 /** 155 * Result for IActivityManager.startActivity: an error where the 156 * caller does not have permission to start the activity. 157 * @hide 158 */ 159 public static final int START_PERMISSION_DENIED = -4; 160 161 /** 162 * Result for IActivityManager.startActivity: an error where the 163 * caller has requested both to forward a result and to receive 164 * a result. 165 * @hide 166 */ 167 public static final int START_FORWARD_AND_REQUEST_CONFLICT = -3; 168 169 /** 170 * Result for IActivityManager.startActivity: an error where the 171 * requested class is not found. 172 * @hide 173 */ 174 public static final int START_CLASS_NOT_FOUND = -2; 175 176 /** 177 * Result for IActivityManager.startActivity: an error where the 178 * given Intent could not be resolved to an activity. 179 * @hide 180 */ 181 public static final int START_INTENT_NOT_RESOLVED = -1; 182 183 /** 184 * Result for IActivityManaqer.startActivity: the activity was started 185 * successfully as normal. 186 * @hide 187 */ 188 public static final int START_SUCCESS = 0; 189 190 /** 191 * Result for IActivityManaqer.startActivity: the caller asked that the Intent not 192 * be executed if it is the recipient, and that is indeed the case. 193 * @hide 194 */ 195 public static final int START_RETURN_INTENT_TO_CALLER = 1; 196 197 /** 198 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 199 * a task was simply brought to the foreground. 200 * @hide 201 */ 202 public static final int START_TASK_TO_FRONT = 2; 203 204 /** 205 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 206 * the given Intent was given to the existing top activity. 207 * @hide 208 */ 209 public static final int START_DELIVERED_TO_TOP = 3; 210 211 /** 212 * Result for IActivityManaqer.startActivity: request was canceled because 213 * app switches are temporarily canceled to ensure the user's last request 214 * (such as pressing home) is performed. 215 * @hide 216 */ 217 public static final int START_SWITCHES_CANCELED = 4; 218 219 /** 220 * Result for IActivityManaqer.startActivity: a new activity was attempted to be started 221 * while in Lock Task Mode. 222 * @hide 223 */ 224 public static final int START_RETURN_LOCK_TASK_MODE_VIOLATION = 5; 225 226 /** 227 * Flag for IActivityManaqer.startActivity: do special start mode where 228 * a new activity is launched only if it is needed. 229 * @hide 230 */ 231 public static final int START_FLAG_ONLY_IF_NEEDED = 1<<0; 232 233 /** 234 * Flag for IActivityManaqer.startActivity: launch the app for 235 * debugging. 236 * @hide 237 */ 238 public static final int START_FLAG_DEBUG = 1<<1; 239 240 /** 241 * Flag for IActivityManaqer.startActivity: launch the app for 242 * allocation tracking. 243 * @hide 244 */ 245 public static final int START_FLAG_TRACK_ALLOCATION = 1<<2; 246 247 /** 248 * Flag for IActivityManaqer.startActivity: launch the app with 249 * native debugging support. 250 * @hide 251 */ 252 public static final int START_FLAG_NATIVE_DEBUGGING = 1<<3; 253 254 /** 255 * Result for IActivityManaqer.broadcastIntent: success! 256 * @hide 257 */ 258 public static final int BROADCAST_SUCCESS = 0; 259 260 /** 261 * Result for IActivityManaqer.broadcastIntent: attempt to broadcast 262 * a sticky intent without appropriate permission. 263 * @hide 264 */ 265 public static final int BROADCAST_STICKY_CANT_HAVE_PERMISSION = -1; 266 267 /** 268 * Result for IActivityManager.broadcastIntent: trying to send a broadcast 269 * to a stopped user. Fail. 270 * @hide 271 */ 272 public static final int BROADCAST_FAILED_USER_STOPPED = -2; 273 274 /** 275 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 276 * for a sendBroadcast operation. 277 * @hide 278 */ 279 public static final int INTENT_SENDER_BROADCAST = 1; 280 281 /** 282 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 283 * for a startActivity operation. 284 * @hide 285 */ 286 public static final int INTENT_SENDER_ACTIVITY = 2; 287 288 /** 289 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 290 * for an activity result operation. 291 * @hide 292 */ 293 public static final int INTENT_SENDER_ACTIVITY_RESULT = 3; 294 295 /** 296 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 297 * for a startService operation. 298 * @hide 299 */ 300 public static final int INTENT_SENDER_SERVICE = 4; 301 302 /** @hide User operation call: success! */ 303 public static final int USER_OP_SUCCESS = 0; 304 305 /** @hide User operation call: given user id is not known. */ 306 public static final int USER_OP_UNKNOWN_USER = -1; 307 308 /** @hide User operation call: given user id is the current user, can't be stopped. */ 309 public static final int USER_OP_IS_CURRENT = -2; 310 311 /** @hide User operation call: system user can't be stopped. */ 312 public static final int USER_OP_ERROR_IS_SYSTEM = -3; 313 314 /** @hide User operation call: one of related users cannot be stopped. */ 315 public static final int USER_OP_ERROR_RELATED_USERS_CANNOT_STOP = -4; 316 317 /** @hide Process does not exist. */ 318 public static final int PROCESS_STATE_NONEXISTENT = -1; 319 320 /** @hide Process is a persistent system process. */ 321 public static final int PROCESS_STATE_PERSISTENT = 0; 322 323 /** @hide Process is a persistent system process and is doing UI. */ 324 public static final int PROCESS_STATE_PERSISTENT_UI = 1; 325 326 /** @hide Process is hosting the current top activities. Note that this covers 327 * all activities that are visible to the user. */ 328 public static final int PROCESS_STATE_TOP = 2; 329 330 /** @hide Process is hosting a foreground service due to a system binding. */ 331 public static final int PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 3; 332 333 /** @hide Process is hosting a foreground service. */ 334 public static final int PROCESS_STATE_FOREGROUND_SERVICE = 4; 335 336 /** @hide Same as {@link #PROCESS_STATE_TOP} but while device is sleeping. */ 337 public static final int PROCESS_STATE_TOP_SLEEPING = 5; 338 339 /** @hide Process is important to the user, and something they are aware of. */ 340 public static final int PROCESS_STATE_IMPORTANT_FOREGROUND = 6; 341 342 /** @hide Process is important to the user, but not something they are aware of. */ 343 public static final int PROCESS_STATE_IMPORTANT_BACKGROUND = 7; 344 345 /** @hide Process is in the background running a backup/restore operation. */ 346 public static final int PROCESS_STATE_BACKUP = 8; 347 348 /** @hide Process is in the background, but it can't restore its state so we want 349 * to try to avoid killing it. */ 350 public static final int PROCESS_STATE_HEAVY_WEIGHT = 9; 351 352 /** @hide Process is in the background running a service. Unlike oom_adj, this level 353 * is used for both the normal running in background state and the executing 354 * operations state. */ 355 public static final int PROCESS_STATE_SERVICE = 10; 356 357 /** @hide Process is in the background running a receiver. Note that from the 358 * perspective of oom_adj receivers run at a higher foreground level, but for our 359 * prioritization here that is not necessary and putting them below services means 360 * many fewer changes in some process states as they receive broadcasts. */ 361 public static final int PROCESS_STATE_RECEIVER = 11; 362 363 /** @hide Process is in the background but hosts the home activity. */ 364 public static final int PROCESS_STATE_HOME = 12; 365 366 /** @hide Process is in the background but hosts the last shown activity. */ 367 public static final int PROCESS_STATE_LAST_ACTIVITY = 13; 368 369 /** @hide Process is being cached for later use and contains activities. */ 370 public static final int PROCESS_STATE_CACHED_ACTIVITY = 14; 371 372 /** @hide Process is being cached for later use and is a client of another cached 373 * process that contains activities. */ 374 public static final int PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 15; 375 376 /** @hide Process is being cached for later use and is empty. */ 377 public static final int PROCESS_STATE_CACHED_EMPTY = 16; 378 379 /** @hide Should this process state be considered a background state? */ 380 public static final boolean isProcStateBackground(int procState) { 381 return procState >= PROCESS_STATE_BACKUP; 382 } 383 384 /** @hide requestType for assist context: only basic information. */ 385 public static final int ASSIST_CONTEXT_BASIC = 0; 386 387 /** @hide requestType for assist context: generate full AssistStructure. */ 388 public static final int ASSIST_CONTEXT_FULL = 1; 389 390 /** @hide Flag for registerUidObserver: report changes in process state. */ 391 public static final int UID_OBSERVER_PROCSTATE = 1<<0; 392 393 /** @hide Flag for registerUidObserver: report uid gone. */ 394 public static final int UID_OBSERVER_GONE = 1<<1; 395 396 /** @hide Flag for registerUidObserver: report uid has become idle. */ 397 public static final int UID_OBSERVER_IDLE = 1<<2; 398 399 /** @hide Flag for registerUidObserver: report uid has become active. */ 400 public static final int UID_OBSERVER_ACTIVE = 1<<3; 401 402 /** @hide Mode for {@link IActivityManager#getAppStartMode}: normal free-to-run operation. */ 403 public static final int APP_START_MODE_NORMAL = 0; 404 405 /** @hide Mode for {@link IActivityManager#getAppStartMode}: delay running until later. */ 406 public static final int APP_START_MODE_DELAYED = 1; 407 408 /** @hide Mode for {@link IActivityManager#getAppStartMode}: disable/cancel pending 409 * launches. */ 410 public static final int APP_START_MODE_DISABLED = 2; 411 412 /** 413 * Lock task mode is not active. 414 */ 415 public static final int LOCK_TASK_MODE_NONE = 0; 416 417 /** 418 * Full lock task mode is active. 419 */ 420 public static final int LOCK_TASK_MODE_LOCKED = 1; 421 422 /** 423 * App pinning mode is active. 424 */ 425 public static final int LOCK_TASK_MODE_PINNED = 2; 426 427 Point mAppTaskThumbnailSize; 428 429 /*package*/ ActivityManager(Context context, Handler handler) { 430 mContext = context; 431 mHandler = handler; 432 } 433 434 /** 435 * Screen compatibility mode: the application most always run in 436 * compatibility mode. 437 * @hide 438 */ 439 public static final int COMPAT_MODE_ALWAYS = -1; 440 441 /** 442 * Screen compatibility mode: the application can never run in 443 * compatibility mode. 444 * @hide 445 */ 446 public static final int COMPAT_MODE_NEVER = -2; 447 448 /** 449 * Screen compatibility mode: unknown. 450 * @hide 451 */ 452 public static final int COMPAT_MODE_UNKNOWN = -3; 453 454 /** 455 * Screen compatibility mode: the application currently has compatibility 456 * mode disabled. 457 * @hide 458 */ 459 public static final int COMPAT_MODE_DISABLED = 0; 460 461 /** 462 * Screen compatibility mode: the application currently has compatibility 463 * mode enabled. 464 * @hide 465 */ 466 public static final int COMPAT_MODE_ENABLED = 1; 467 468 /** 469 * Screen compatibility mode: request to toggle the application's 470 * compatibility mode. 471 * @hide 472 */ 473 public static final int COMPAT_MODE_TOGGLE = 2; 474 475 /** @hide */ 476 public static class StackId { 477 /** Invalid stack ID. */ 478 public static final int INVALID_STACK_ID = -1; 479 480 /** First static stack ID. */ 481 public static final int FIRST_STATIC_STACK_ID = 0; 482 483 /** Home activity stack ID. */ 484 public static final int HOME_STACK_ID = FIRST_STATIC_STACK_ID; 485 486 /** ID of stack where fullscreen activities are normally launched into. */ 487 public static final int FULLSCREEN_WORKSPACE_STACK_ID = 1; 488 489 /** ID of stack where freeform/resized activities are normally launched into. */ 490 public static final int FREEFORM_WORKSPACE_STACK_ID = FULLSCREEN_WORKSPACE_STACK_ID + 1; 491 492 /** ID of stack that occupies a dedicated region of the screen. */ 493 public static final int DOCKED_STACK_ID = FREEFORM_WORKSPACE_STACK_ID + 1; 494 495 /** ID of stack that always on top (always visible) when it exist. */ 496 public static final int PINNED_STACK_ID = DOCKED_STACK_ID + 1; 497 498 /** Last static stack stack ID. */ 499 public static final int LAST_STATIC_STACK_ID = PINNED_STACK_ID; 500 501 /** Start of ID range used by stacks that are created dynamically. */ 502 public static final int FIRST_DYNAMIC_STACK_ID = LAST_STATIC_STACK_ID + 1; 503 504 public static boolean isStaticStack(int stackId) { 505 return stackId >= FIRST_STATIC_STACK_ID && stackId <= LAST_STATIC_STACK_ID; 506 } 507 508 /** 509 * Returns true if the activities contained in the input stack display a shadow around 510 * their border. 511 */ 512 public static boolean hasWindowShadow(int stackId) { 513 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 514 } 515 516 /** 517 * Returns true if the activities contained in the input stack display a decor view. 518 */ 519 public static boolean hasWindowDecor(int stackId) { 520 return stackId == FREEFORM_WORKSPACE_STACK_ID; 521 } 522 523 /** 524 * Returns true if the tasks contained in the stack can be resized independently of the 525 * stack. 526 */ 527 public static boolean isTaskResizeAllowed(int stackId) { 528 return stackId == FREEFORM_WORKSPACE_STACK_ID; 529 } 530 531 /** Returns true if the task bounds should persist across power cycles. */ 532 public static boolean persistTaskBounds(int stackId) { 533 return stackId == FREEFORM_WORKSPACE_STACK_ID; 534 } 535 536 /** 537 * Returns true if dynamic stacks are allowed to be visible behind the input stack. 538 */ 539 public static boolean isDynamicStacksVisibleBehindAllowed(int stackId) { 540 return stackId == PINNED_STACK_ID; 541 } 542 543 /** 544 * Returns true if we try to maintain focus in the current stack when the top activity 545 * finishes. 546 */ 547 public static boolean keepFocusInStackIfPossible(int stackId) { 548 return stackId == FREEFORM_WORKSPACE_STACK_ID 549 || stackId == DOCKED_STACK_ID || stackId == PINNED_STACK_ID; 550 } 551 552 /** 553 * Returns true if Stack size is affected by the docked stack changing size. 554 */ 555 public static boolean isResizeableByDockedStack(int stackId) { 556 return isStaticStack(stackId) && 557 stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID; 558 } 559 560 /** 561 * Returns true if the size of tasks in the input stack are affected by the docked stack 562 * changing size. 563 */ 564 public static boolean isTaskResizeableByDockedStack(int stackId) { 565 return isStaticStack(stackId) && stackId != FREEFORM_WORKSPACE_STACK_ID 566 && stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID; 567 } 568 569 /** 570 * Returns true if the windows of tasks being moved to the target stack from the source 571 * stack should be replaced, meaning that window manager will keep the old window around 572 * until the new is ready. 573 */ 574 public static boolean replaceWindowsOnTaskMove(int sourceStackId, int targetStackId) { 575 return sourceStackId == FREEFORM_WORKSPACE_STACK_ID 576 || targetStackId == FREEFORM_WORKSPACE_STACK_ID; 577 } 578 579 /** 580 * Returns true if animation specs should be constructed for app transition that moves 581 * the task to the specified stack. 582 */ 583 public static boolean useAnimationSpecForAppTransition(int stackId) { 584 585 // TODO: INVALID_STACK_ID is also animated because we don't persist stack id's across 586 // reboots. 587 return stackId == FREEFORM_WORKSPACE_STACK_ID 588 || stackId == FULLSCREEN_WORKSPACE_STACK_ID || stackId == DOCKED_STACK_ID 589 || stackId == INVALID_STACK_ID; 590 } 591 592 /** Returns true if the windows in the stack can receive input keys. */ 593 public static boolean canReceiveKeys(int stackId) { 594 return stackId != PINNED_STACK_ID; 595 } 596 597 /** 598 * Returns true if the stack can be visible above lockscreen. 599 */ 600 public static boolean isAllowedOverLockscreen(int stackId) { 601 return stackId == HOME_STACK_ID || stackId == FULLSCREEN_WORKSPACE_STACK_ID; 602 } 603 604 public static boolean isAlwaysOnTop(int stackId) { 605 return stackId == PINNED_STACK_ID; 606 } 607 608 /** 609 * Returns true if the top task in the task is allowed to return home when finished and 610 * there are other tasks in the stack. 611 */ 612 public static boolean allowTopTaskToReturnHome(int stackId) { 613 return stackId != PINNED_STACK_ID; 614 } 615 616 /** 617 * Returns true if the stack should be resized to match the bounds specified by 618 * {@link ActivityOptions#setLaunchBounds} when launching an activity into the stack. 619 */ 620 public static boolean resizeStackWithLaunchBounds(int stackId) { 621 return stackId == PINNED_STACK_ID; 622 } 623 624 /** 625 * Returns true if any visible windows belonging to apps in this stack should be kept on 626 * screen when the app is killed due to something like the low memory killer. 627 */ 628 public static boolean keepVisibleDeadAppWindowOnScreen(int stackId) { 629 return stackId != PINNED_STACK_ID; 630 } 631 632 /** 633 * Returns true if the backdrop on the client side should match the frame of the window. 634 * Returns false, if the backdrop should be fullscreen. 635 */ 636 public static boolean useWindowFrameForBackdrop(int stackId) { 637 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 638 } 639 640 /** 641 * Returns true if a window from the specified stack with {@param stackId} are normally 642 * fullscreen, i. e. they can become the top opaque fullscreen window, meaning that it 643 * controls system bars, lockscreen occluded/dismissing state, screen rotation animation, 644 * etc. 645 */ 646 public static boolean normallyFullscreenWindows(int stackId) { 647 return stackId != PINNED_STACK_ID && stackId != FREEFORM_WORKSPACE_STACK_ID 648 && stackId != DOCKED_STACK_ID; 649 } 650 } 651 652 /** 653 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 654 * specifies the position of the created docked stack at the top half of the screen if 655 * in portrait mode or at the left half of the screen if in landscape mode. 656 * @hide 657 */ 658 public static final int DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT = 0; 659 660 /** 661 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 662 * specifies the position of the created docked stack at the bottom half of the screen if 663 * in portrait mode or at the right half of the screen if in landscape mode. 664 * @hide 665 */ 666 public static final int DOCKED_STACK_CREATE_MODE_BOTTOM_OR_RIGHT = 1; 667 668 /** 669 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 670 * that the resize doesn't need to preserve the window, and can be skipped if bounds 671 * is unchanged. This mode is used by window manager in most cases. 672 * @hide 673 */ 674 public static final int RESIZE_MODE_SYSTEM = 0; 675 676 /** 677 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 678 * that the resize should preserve the window if possible. 679 * @hide 680 */ 681 public static final int RESIZE_MODE_PRESERVE_WINDOW = (0x1 << 0); 682 683 /** 684 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 685 * that the resize should be performed even if the bounds appears unchanged. 686 * @hide 687 */ 688 public static final int RESIZE_MODE_FORCED = (0x1 << 1); 689 690 /** 691 * Input parameter to {@link android.app.IActivityManager#resizeTask} used by window 692 * manager during a screen rotation. 693 * @hide 694 */ 695 public static final int RESIZE_MODE_SYSTEM_SCREEN_ROTATION = RESIZE_MODE_PRESERVE_WINDOW; 696 697 /** 698 * Input parameter to {@link android.app.IActivityManager#resizeTask} used when the 699 * resize is due to a drag action. 700 * @hide 701 */ 702 public static final int RESIZE_MODE_USER = RESIZE_MODE_PRESERVE_WINDOW; 703 704 /** 705 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 706 * that the resize should preserve the window if possible, and should not be skipped 707 * even if the bounds is unchanged. Usually used to force a resizing when a drag action 708 * is ending. 709 * @hide 710 */ 711 public static final int RESIZE_MODE_USER_FORCED = 712 RESIZE_MODE_PRESERVE_WINDOW | RESIZE_MODE_FORCED; 713 714 /** @hide */ 715 public int getFrontActivityScreenCompatMode() { 716 try { 717 return ActivityManagerNative.getDefault().getFrontActivityScreenCompatMode(); 718 } catch (RemoteException e) { 719 // System dead, we will be dead too soon! 720 return 0; 721 } 722 } 723 724 /** @hide */ 725 public void setFrontActivityScreenCompatMode(int mode) { 726 try { 727 ActivityManagerNative.getDefault().setFrontActivityScreenCompatMode(mode); 728 } catch (RemoteException e) { 729 // System dead, we will be dead too soon! 730 } 731 } 732 733 /** @hide */ 734 public int getPackageScreenCompatMode(String packageName) { 735 try { 736 return ActivityManagerNative.getDefault().getPackageScreenCompatMode(packageName); 737 } catch (RemoteException e) { 738 // System dead, we will be dead too soon! 739 return 0; 740 } 741 } 742 743 /** @hide */ 744 public void setPackageScreenCompatMode(String packageName, int mode) { 745 try { 746 ActivityManagerNative.getDefault().setPackageScreenCompatMode(packageName, mode); 747 } catch (RemoteException e) { 748 // System dead, we will be dead too soon! 749 } 750 } 751 752 /** @hide */ 753 public boolean getPackageAskScreenCompat(String packageName) { 754 try { 755 return ActivityManagerNative.getDefault().getPackageAskScreenCompat(packageName); 756 } catch (RemoteException e) { 757 // System dead, we will be dead too soon! 758 return false; 759 } 760 } 761 762 /** @hide */ 763 public void setPackageAskScreenCompat(String packageName, boolean ask) { 764 try { 765 ActivityManagerNative.getDefault().setPackageAskScreenCompat(packageName, ask); 766 } catch (RemoteException e) { 767 // System dead, we will be dead too soon! 768 } 769 } 770 771 /** 772 * Return the approximate per-application memory class of the current 773 * device. This gives you an idea of how hard a memory limit you should 774 * impose on your application to let the overall system work best. The 775 * returned value is in megabytes; the baseline Android memory class is 776 * 16 (which happens to be the Java heap limit of those devices); some 777 * device with more memory may return 24 or even higher numbers. 778 */ 779 public int getMemoryClass() { 780 return staticGetMemoryClass(); 781 } 782 783 /** @hide */ 784 static public int staticGetMemoryClass() { 785 // Really brain dead right now -- just take this from the configured 786 // vm heap size, and assume it is in megabytes and thus ends with "m". 787 String vmHeapSize = SystemProperties.get("dalvik.vm.heapgrowthlimit", ""); 788 if (vmHeapSize != null && !"".equals(vmHeapSize)) { 789 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1)); 790 } 791 return staticGetLargeMemoryClass(); 792 } 793 794 /** 795 * Return the approximate per-application memory class of the current 796 * device when an application is running with a large heap. This is the 797 * space available for memory-intensive applications; most applications 798 * should not need this amount of memory, and should instead stay with the 799 * {@link #getMemoryClass()} limit. The returned value is in megabytes. 800 * This may be the same size as {@link #getMemoryClass()} on memory 801 * constrained devices, or it may be significantly larger on devices with 802 * a large amount of available RAM. 803 * 804 * <p>The is the size of the application's Dalvik heap if it has 805 * specified <code>android:largeHeap="true"</code> in its manifest. 806 */ 807 public int getLargeMemoryClass() { 808 return staticGetLargeMemoryClass(); 809 } 810 811 /** @hide */ 812 static public int staticGetLargeMemoryClass() { 813 // Really brain dead right now -- just take this from the configured 814 // vm heap size, and assume it is in megabytes and thus ends with "m". 815 String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m"); 816 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1)); 817 } 818 819 /** 820 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 821 * is ultimately up to the device configuration, but currently it generally means 822 * something in the class of a 512MB device with about a 800x480 or less screen. 823 * This is mostly intended to be used by apps to determine whether they should turn 824 * off certain features that require more RAM. 825 */ 826 public boolean isLowRamDevice() { 827 return isLowRamDeviceStatic(); 828 } 829 830 /** @hide */ 831 public static boolean isLowRamDeviceStatic() { 832 return "true".equals(SystemProperties.get("ro.config.low_ram", "false")); 833 } 834 835 /** 836 * Used by persistent processes to determine if they are running on a 837 * higher-end device so should be okay using hardware drawing acceleration 838 * (which tends to consume a lot more RAM). 839 * @hide 840 */ 841 static public boolean isHighEndGfx() { 842 return !isLowRamDeviceStatic() && 843 !Resources.getSystem().getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 844 } 845 846 /** 847 * Return the maximum number of recents entries that we will maintain and show. 848 * @hide 849 */ 850 static public int getMaxRecentTasksStatic() { 851 if (gMaxRecentTasks < 0) { 852 return gMaxRecentTasks = isLowRamDeviceStatic() ? 50 : 100; 853 } 854 return gMaxRecentTasks; 855 } 856 857 /** 858 * Return the default limit on the number of recents that an app can make. 859 * @hide 860 */ 861 static public int getDefaultAppRecentsLimitStatic() { 862 return getMaxRecentTasksStatic() / 6; 863 } 864 865 /** 866 * Return the maximum limit on the number of recents that an app can make. 867 * @hide 868 */ 869 static public int getMaxAppRecentsLimitStatic() { 870 return getMaxRecentTasksStatic() / 2; 871 } 872 873 /** 874 * Information you can set and retrieve about the current activity within the recent task list. 875 */ 876 public static class TaskDescription implements Parcelable { 877 /** @hide */ 878 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 879 private static final String ATTR_TASKDESCRIPTIONLABEL = 880 ATTR_TASKDESCRIPTION_PREFIX + "label"; 881 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 882 ATTR_TASKDESCRIPTION_PREFIX + "color"; 883 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 884 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 885 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 886 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 887 888 private String mLabel; 889 private Bitmap mIcon; 890 private String mIconFilename; 891 private int mColorPrimary; 892 private int mColorBackground; 893 894 /** 895 * Creates the TaskDescription to the specified values. 896 * 897 * @param label A label and description of the current state of this task. 898 * @param icon An icon that represents the current state of this task. 899 * @param colorPrimary A color to override the theme's primary color. This color must be 900 * opaque. 901 */ 902 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 903 this(label, icon, null, colorPrimary, 0); 904 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 905 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 906 } 907 } 908 909 /** 910 * Creates the TaskDescription to the specified values. 911 * 912 * @param label A label and description of the current state of this activity. 913 * @param icon An icon that represents the current state of this activity. 914 */ 915 public TaskDescription(String label, Bitmap icon) { 916 this(label, icon, null, 0, 0); 917 } 918 919 /** 920 * Creates the TaskDescription to the specified values. 921 * 922 * @param label A label and description of the current state of this activity. 923 */ 924 public TaskDescription(String label) { 925 this(label, null, null, 0, 0); 926 } 927 928 /** 929 * Creates an empty TaskDescription. 930 */ 931 public TaskDescription() { 932 this(null, null, null, 0, 0); 933 } 934 935 /** @hide */ 936 public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary, 937 int colorBackground) { 938 mLabel = label; 939 mIcon = icon; 940 mIconFilename = iconFilename; 941 mColorPrimary = colorPrimary; 942 mColorBackground = colorBackground; 943 } 944 945 /** 946 * Creates a copy of another TaskDescription. 947 */ 948 public TaskDescription(TaskDescription td) { 949 copyFrom(td); 950 } 951 952 /** 953 * Copies this the values from another TaskDescription. 954 * @hide 955 */ 956 public void copyFrom(TaskDescription other) { 957 mLabel = other.mLabel; 958 mIcon = other.mIcon; 959 mIconFilename = other.mIconFilename; 960 mColorPrimary = other.mColorPrimary; 961 mColorBackground = other.mColorBackground; 962 } 963 964 private TaskDescription(Parcel source) { 965 readFromParcel(source); 966 } 967 968 /** 969 * Sets the label for this task description. 970 * @hide 971 */ 972 public void setLabel(String label) { 973 mLabel = label; 974 } 975 976 /** 977 * Sets the primary color for this task description. 978 * @hide 979 */ 980 public void setPrimaryColor(int primaryColor) { 981 // Ensure that the given color is valid 982 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 983 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 984 } 985 mColorPrimary = primaryColor; 986 } 987 988 /** 989 * Sets the background color for this task description. 990 * @hide 991 */ 992 public void setBackgroundColor(int backgroundColor) { 993 // Ensure that the given color is valid 994 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 995 throw new RuntimeException("A TaskDescription's background color should be opaque"); 996 } 997 mColorBackground = backgroundColor; 998 } 999 1000 /** 1001 * Sets the icon for this task description. 1002 * @hide 1003 */ 1004 public void setIcon(Bitmap icon) { 1005 mIcon = icon; 1006 } 1007 1008 /** 1009 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1010 * bitmap. 1011 * @hide 1012 */ 1013 public void setIconFilename(String iconFilename) { 1014 mIconFilename = iconFilename; 1015 mIcon = null; 1016 } 1017 1018 /** 1019 * @return The label and description of the current state of this task. 1020 */ 1021 public String getLabel() { 1022 return mLabel; 1023 } 1024 1025 /** 1026 * @return The icon that represents the current state of this task. 1027 */ 1028 public Bitmap getIcon() { 1029 if (mIcon != null) { 1030 return mIcon; 1031 } 1032 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1033 } 1034 1035 /** @hide */ 1036 public String getIconFilename() { 1037 return mIconFilename; 1038 } 1039 1040 /** @hide */ 1041 public Bitmap getInMemoryIcon() { 1042 return mIcon; 1043 } 1044 1045 /** @hide */ 1046 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1047 if (iconFilename != null) { 1048 try { 1049 return ActivityManagerNative.getDefault().getTaskDescriptionIcon(iconFilename, 1050 userId); 1051 } catch (RemoteException e) { 1052 } 1053 } 1054 return null; 1055 } 1056 1057 /** 1058 * @return The color override on the theme's primary color. 1059 */ 1060 public int getPrimaryColor() { 1061 return mColorPrimary; 1062 } 1063 1064 /** 1065 * @return The background color. 1066 * @hide 1067 */ 1068 public int getBackgroundColor() { 1069 return mColorBackground; 1070 } 1071 1072 /** @hide */ 1073 public void saveToXml(XmlSerializer out) throws IOException { 1074 if (mLabel != null) { 1075 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1076 } 1077 if (mColorPrimary != 0) { 1078 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1079 Integer.toHexString(mColorPrimary)); 1080 } 1081 if (mColorBackground != 0) { 1082 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1083 Integer.toHexString(mColorBackground)); 1084 } 1085 if (mIconFilename != null) { 1086 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 1087 } 1088 } 1089 1090 /** @hide */ 1091 public void restoreFromXml(String attrName, String attrValue) { 1092 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1093 setLabel(attrValue); 1094 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1095 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1096 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1097 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1098 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 1099 setIconFilename(attrValue); 1100 } 1101 } 1102 1103 @Override 1104 public int describeContents() { 1105 return 0; 1106 } 1107 1108 @Override 1109 public void writeToParcel(Parcel dest, int flags) { 1110 if (mLabel == null) { 1111 dest.writeInt(0); 1112 } else { 1113 dest.writeInt(1); 1114 dest.writeString(mLabel); 1115 } 1116 if (mIcon == null) { 1117 dest.writeInt(0); 1118 } else { 1119 dest.writeInt(1); 1120 mIcon.writeToParcel(dest, 0); 1121 } 1122 dest.writeInt(mColorPrimary); 1123 dest.writeInt(mColorBackground); 1124 if (mIconFilename == null) { 1125 dest.writeInt(0); 1126 } else { 1127 dest.writeInt(1); 1128 dest.writeString(mIconFilename); 1129 } 1130 } 1131 1132 public void readFromParcel(Parcel source) { 1133 mLabel = source.readInt() > 0 ? source.readString() : null; 1134 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1135 mColorPrimary = source.readInt(); 1136 mColorBackground = source.readInt(); 1137 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1138 } 1139 1140 public static final Creator<TaskDescription> CREATOR 1141 = new Creator<TaskDescription>() { 1142 public TaskDescription createFromParcel(Parcel source) { 1143 return new TaskDescription(source); 1144 } 1145 public TaskDescription[] newArray(int size) { 1146 return new TaskDescription[size]; 1147 } 1148 }; 1149 1150 @Override 1151 public String toString() { 1152 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1153 " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary + 1154 " colorBackground: " + mColorBackground; 1155 } 1156 } 1157 1158 /** 1159 * Information you can retrieve about tasks that the user has most recently 1160 * started or visited. 1161 */ 1162 public static class RecentTaskInfo implements Parcelable { 1163 /** 1164 * If this task is currently running, this is the identifier for it. 1165 * If it is not running, this will be -1. 1166 */ 1167 public int id; 1168 1169 /** 1170 * The true identifier of this task, valid even if it is not running. 1171 */ 1172 public int persistentId; 1173 1174 /** 1175 * The original Intent used to launch the task. You can use this 1176 * Intent to re-launch the task (if it is no longer running) or bring 1177 * the current task to the front. 1178 */ 1179 public Intent baseIntent; 1180 1181 /** 1182 * If this task was started from an alias, this is the actual 1183 * activity component that was initially started; the component of 1184 * the baseIntent in this case is the name of the actual activity 1185 * implementation that the alias referred to. Otherwise, this is null. 1186 */ 1187 public ComponentName origActivity; 1188 1189 /** 1190 * The actual activity component that started the task. 1191 * @hide 1192 */ 1193 @Nullable 1194 public ComponentName realActivity; 1195 1196 /** 1197 * Description of the task's last state. 1198 */ 1199 public CharSequence description; 1200 1201 /** 1202 * The id of the ActivityStack this Task was on most recently. 1203 * @hide 1204 */ 1205 public int stackId; 1206 1207 /** 1208 * The id of the user the task was running as. 1209 * @hide 1210 */ 1211 public int userId; 1212 1213 /** 1214 * The first time this task was active. 1215 * @hide 1216 */ 1217 public long firstActiveTime; 1218 1219 /** 1220 * The last time this task was active. 1221 * @hide 1222 */ 1223 public long lastActiveTime; 1224 1225 /** 1226 * The recent activity values for the highest activity in the stack to have set the values. 1227 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1228 */ 1229 public TaskDescription taskDescription; 1230 1231 /** 1232 * Task affiliation for grouping with other tasks. 1233 */ 1234 public int affiliatedTaskId; 1235 1236 /** 1237 * Task affiliation color of the source task with the affiliated task id. 1238 * 1239 * @hide 1240 */ 1241 public int affiliatedTaskColor; 1242 1243 /** 1244 * The component launched as the first activity in the task. 1245 * This can be considered the "application" of this task. 1246 */ 1247 public ComponentName baseActivity; 1248 1249 /** 1250 * The activity component at the top of the history stack of the task. 1251 * This is what the user is currently doing. 1252 */ 1253 public ComponentName topActivity; 1254 1255 /** 1256 * Number of activities in this task. 1257 */ 1258 public int numActivities; 1259 1260 /** 1261 * The bounds of the task. 1262 * @hide 1263 */ 1264 public Rect bounds; 1265 1266 /** 1267 * True if the task can go in the docked stack. 1268 * @hide 1269 */ 1270 public boolean isDockable; 1271 1272 public RecentTaskInfo() { 1273 } 1274 1275 @Override 1276 public int describeContents() { 1277 return 0; 1278 } 1279 1280 @Override 1281 public void writeToParcel(Parcel dest, int flags) { 1282 dest.writeInt(id); 1283 dest.writeInt(persistentId); 1284 if (baseIntent != null) { 1285 dest.writeInt(1); 1286 baseIntent.writeToParcel(dest, 0); 1287 } else { 1288 dest.writeInt(0); 1289 } 1290 ComponentName.writeToParcel(origActivity, dest); 1291 ComponentName.writeToParcel(realActivity, dest); 1292 TextUtils.writeToParcel(description, dest, 1293 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1294 if (taskDescription != null) { 1295 dest.writeInt(1); 1296 taskDescription.writeToParcel(dest, 0); 1297 } else { 1298 dest.writeInt(0); 1299 } 1300 dest.writeInt(stackId); 1301 dest.writeInt(userId); 1302 dest.writeLong(firstActiveTime); 1303 dest.writeLong(lastActiveTime); 1304 dest.writeInt(affiliatedTaskId); 1305 dest.writeInt(affiliatedTaskColor); 1306 ComponentName.writeToParcel(baseActivity, dest); 1307 ComponentName.writeToParcel(topActivity, dest); 1308 dest.writeInt(numActivities); 1309 if (bounds != null) { 1310 dest.writeInt(1); 1311 bounds.writeToParcel(dest, 0); 1312 } else { 1313 dest.writeInt(0); 1314 } 1315 dest.writeInt(isDockable ? 1 : 0); 1316 } 1317 1318 public void readFromParcel(Parcel source) { 1319 id = source.readInt(); 1320 persistentId = source.readInt(); 1321 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1322 origActivity = ComponentName.readFromParcel(source); 1323 realActivity = ComponentName.readFromParcel(source); 1324 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1325 taskDescription = source.readInt() > 0 ? 1326 TaskDescription.CREATOR.createFromParcel(source) : null; 1327 stackId = source.readInt(); 1328 userId = source.readInt(); 1329 firstActiveTime = source.readLong(); 1330 lastActiveTime = source.readLong(); 1331 affiliatedTaskId = source.readInt(); 1332 affiliatedTaskColor = source.readInt(); 1333 baseActivity = ComponentName.readFromParcel(source); 1334 topActivity = ComponentName.readFromParcel(source); 1335 numActivities = source.readInt(); 1336 bounds = source.readInt() > 0 ? 1337 Rect.CREATOR.createFromParcel(source) : null; 1338 isDockable = source.readInt() == 1; 1339 } 1340 1341 public static final Creator<RecentTaskInfo> CREATOR 1342 = new Creator<RecentTaskInfo>() { 1343 public RecentTaskInfo createFromParcel(Parcel source) { 1344 return new RecentTaskInfo(source); 1345 } 1346 public RecentTaskInfo[] newArray(int size) { 1347 return new RecentTaskInfo[size]; 1348 } 1349 }; 1350 1351 private RecentTaskInfo(Parcel source) { 1352 readFromParcel(source); 1353 } 1354 } 1355 1356 /** 1357 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1358 * that have set their 1359 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1360 */ 1361 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1362 1363 /** 1364 * Provides a list that does not contain any 1365 * recent tasks that currently are not available to the user. 1366 */ 1367 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1368 1369 /** 1370 * Provides a list that contains recent tasks for all 1371 * profiles of a user. 1372 * @hide 1373 */ 1374 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1375 1376 /** 1377 * Ignores all tasks that are on the home stack. 1378 * @hide 1379 */ 1380 public static final int RECENT_IGNORE_HOME_STACK_TASKS = 0x0008; 1381 1382 /** 1383 * Ignores all tasks that are on the docked stack. 1384 * @hide 1385 */ 1386 public static final int RECENT_INGORE_DOCKED_STACK_TASKS = 0x0010; 1387 1388 /** 1389 * Ignores all tasks that are on the pinned stack. 1390 * @hide 1391 */ 1392 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1393 1394 /** 1395 * <p></p>Return a list of the tasks that the user has recently launched, with 1396 * the most recent being first and older ones after in order. 1397 * 1398 * <p><b>Note: this method is only intended for debugging and presenting 1399 * task management user interfaces</b>. This should never be used for 1400 * core logic in an application, such as deciding between different 1401 * behaviors based on the information found here. Such uses are 1402 * <em>not</em> supported, and will likely break in the future. For 1403 * example, if multiple applications can be actively running at the 1404 * same time, assumptions made about the meaning of the data here for 1405 * purposes of control flow will be incorrect.</p> 1406 * 1407 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1408 * no longer available to third party applications: the introduction of 1409 * document-centric recents means 1410 * it can leak personal information to the caller. For backwards compatibility, 1411 * it will still return a small subset of its data: at least the caller's 1412 * own tasks (though see {@link #getAppTasks()} for the correct supported 1413 * way to retrieve that information), and possibly some other tasks 1414 * such as home that are known to not be sensitive. 1415 * 1416 * @param maxNum The maximum number of entries to return in the list. The 1417 * actual number returned may be smaller, depending on how many tasks the 1418 * user has started and the maximum number the system can remember. 1419 * @param flags Information about what to return. May be any combination 1420 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1421 * 1422 * @return Returns a list of RecentTaskInfo records describing each of 1423 * the recent tasks. 1424 */ 1425 @Deprecated 1426 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1427 throws SecurityException { 1428 try { 1429 return ActivityManagerNative.getDefault().getRecentTasks(maxNum, 1430 flags, UserHandle.myUserId()); 1431 } catch (RemoteException e) { 1432 // System dead, we will be dead too soon! 1433 return null; 1434 } 1435 } 1436 1437 /** 1438 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1439 * specific user. It requires holding 1440 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1441 * @param maxNum The maximum number of entries to return in the list. The 1442 * actual number returned may be smaller, depending on how many tasks the 1443 * user has started and the maximum number the system can remember. 1444 * @param flags Information about what to return. May be any combination 1445 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1446 * 1447 * @return Returns a list of RecentTaskInfo records describing each of 1448 * the recent tasks. Most recently activated tasks go first. 1449 * 1450 * @hide 1451 */ 1452 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1453 throws SecurityException { 1454 try { 1455 return ActivityManagerNative.getDefault().getRecentTasks(maxNum, 1456 flags, userId); 1457 } catch (RemoteException e) { 1458 // System dead, we will be dead too soon! 1459 return null; 1460 } 1461 } 1462 1463 /** 1464 * Information you can retrieve about a particular task that is currently 1465 * "running" in the system. Note that a running task does not mean the 1466 * given task actually has a process it is actively running in; it simply 1467 * means that the user has gone to it and never closed it, but currently 1468 * the system may have killed its process and is only holding on to its 1469 * last state in order to restart it when the user returns. 1470 */ 1471 public static class RunningTaskInfo implements Parcelable { 1472 /** 1473 * A unique identifier for this task. 1474 */ 1475 public int id; 1476 1477 /** 1478 * The stack that currently contains this task. 1479 * @hide 1480 */ 1481 public int stackId; 1482 1483 /** 1484 * The component launched as the first activity in the task. This can 1485 * be considered the "application" of this task. 1486 */ 1487 public ComponentName baseActivity; 1488 1489 /** 1490 * The activity component at the top of the history stack of the task. 1491 * This is what the user is currently doing. 1492 */ 1493 public ComponentName topActivity; 1494 1495 /** 1496 * Thumbnail representation of the task's current state. Currently 1497 * always null. 1498 */ 1499 public Bitmap thumbnail; 1500 1501 /** 1502 * Description of the task's current state. 1503 */ 1504 public CharSequence description; 1505 1506 /** 1507 * Number of activities in this task. 1508 */ 1509 public int numActivities; 1510 1511 /** 1512 * Number of activities that are currently running (not stopped 1513 * and persisted) in this task. 1514 */ 1515 public int numRunning; 1516 1517 /** 1518 * Last time task was run. For sorting. 1519 * @hide 1520 */ 1521 public long lastActiveTime; 1522 1523 /** 1524 * True if the task can go in the docked stack. 1525 * @hide 1526 */ 1527 public boolean isDockable; 1528 1529 public RunningTaskInfo() { 1530 } 1531 1532 public int describeContents() { 1533 return 0; 1534 } 1535 1536 public void writeToParcel(Parcel dest, int flags) { 1537 dest.writeInt(id); 1538 dest.writeInt(stackId); 1539 ComponentName.writeToParcel(baseActivity, dest); 1540 ComponentName.writeToParcel(topActivity, dest); 1541 if (thumbnail != null) { 1542 dest.writeInt(1); 1543 thumbnail.writeToParcel(dest, 0); 1544 } else { 1545 dest.writeInt(0); 1546 } 1547 TextUtils.writeToParcel(description, dest, 1548 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1549 dest.writeInt(numActivities); 1550 dest.writeInt(numRunning); 1551 } 1552 1553 public void readFromParcel(Parcel source) { 1554 id = source.readInt(); 1555 stackId = source.readInt(); 1556 baseActivity = ComponentName.readFromParcel(source); 1557 topActivity = ComponentName.readFromParcel(source); 1558 if (source.readInt() != 0) { 1559 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1560 } else { 1561 thumbnail = null; 1562 } 1563 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1564 numActivities = source.readInt(); 1565 numRunning = source.readInt(); 1566 } 1567 1568 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1569 public RunningTaskInfo createFromParcel(Parcel source) { 1570 return new RunningTaskInfo(source); 1571 } 1572 public RunningTaskInfo[] newArray(int size) { 1573 return new RunningTaskInfo[size]; 1574 } 1575 }; 1576 1577 private RunningTaskInfo(Parcel source) { 1578 readFromParcel(source); 1579 } 1580 } 1581 1582 /** 1583 * Get the list of tasks associated with the calling application. 1584 * 1585 * @return The list of tasks associated with the application making this call. 1586 * @throws SecurityException 1587 */ 1588 public List<ActivityManager.AppTask> getAppTasks() { 1589 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1590 List<IAppTask> appTasks; 1591 try { 1592 appTasks = ActivityManagerNative.getDefault().getAppTasks(mContext.getPackageName()); 1593 } catch (RemoteException e) { 1594 // System dead, we will be dead too soon! 1595 return null; 1596 } 1597 int numAppTasks = appTasks.size(); 1598 for (int i = 0; i < numAppTasks; i++) { 1599 tasks.add(new AppTask(appTasks.get(i))); 1600 } 1601 return tasks; 1602 } 1603 1604 /** 1605 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1606 * with {@link #addAppTask}. 1607 */ 1608 public Size getAppTaskThumbnailSize() { 1609 synchronized (this) { 1610 ensureAppTaskThumbnailSizeLocked(); 1611 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1612 } 1613 } 1614 1615 private void ensureAppTaskThumbnailSizeLocked() { 1616 if (mAppTaskThumbnailSize == null) { 1617 try { 1618 mAppTaskThumbnailSize = ActivityManagerNative.getDefault().getAppTaskThumbnailSize(); 1619 } catch (RemoteException e) { 1620 throw new IllegalStateException("System dead?", e); 1621 } 1622 } 1623 } 1624 1625 /** 1626 * Add a new {@link AppTask} for the calling application. This will create a new 1627 * recents entry that is added to the <b>end</b> of all existing recents. 1628 * 1629 * @param activity The activity that is adding the entry. This is used to help determine 1630 * the context that the new recents entry will be in. 1631 * @param intent The Intent that describes the recents entry. This is the same Intent that 1632 * you would have used to launch the activity for it. In generally you will want to set 1633 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1634 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1635 * entry will exist without an activity, so it doesn't make sense to not retain it when 1636 * its activity disappears. The given Intent here also must have an explicit ComponentName 1637 * set on it. 1638 * @param description Optional additional description information. 1639 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1640 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1641 * recreated in your process, probably in a way you don't like, before the recents entry 1642 * is added. 1643 * 1644 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 1645 * most likely cause of failure is that there is no more room for more tasks for your app. 1646 */ 1647 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 1648 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 1649 Point size; 1650 synchronized (this) { 1651 ensureAppTaskThumbnailSizeLocked(); 1652 size = mAppTaskThumbnailSize; 1653 } 1654 final int tw = thumbnail.getWidth(); 1655 final int th = thumbnail.getHeight(); 1656 if (tw != size.x || th != size.y) { 1657 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 1658 1659 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 1660 float scale; 1661 float dx = 0, dy = 0; 1662 if (tw * size.x > size.y * th) { 1663 scale = (float) size.x / (float) th; 1664 dx = (size.y - tw * scale) * 0.5f; 1665 } else { 1666 scale = (float) size.y / (float) tw; 1667 dy = (size.x - th * scale) * 0.5f; 1668 } 1669 Matrix matrix = new Matrix(); 1670 matrix.setScale(scale, scale); 1671 matrix.postTranslate((int) (dx + 0.5f), 0); 1672 1673 Canvas canvas = new Canvas(bm); 1674 canvas.drawBitmap(thumbnail, matrix, null); 1675 canvas.setBitmap(null); 1676 1677 thumbnail = bm; 1678 } 1679 if (description == null) { 1680 description = new TaskDescription(); 1681 } 1682 try { 1683 return ActivityManagerNative.getDefault().addAppTask(activity.getActivityToken(), 1684 intent, description, thumbnail); 1685 } catch (RemoteException e) { 1686 throw new IllegalStateException("System dead?", e); 1687 } 1688 } 1689 1690 /** 1691 * Return a list of the tasks that are currently running, with 1692 * the most recent being first and older ones after in order. Note that 1693 * "running" does not mean any of the task's code is currently loaded or 1694 * activity -- the task may have been frozen by the system, so that it 1695 * can be restarted in its previous state when next brought to the 1696 * foreground. 1697 * 1698 * <p><b>Note: this method is only intended for debugging and presenting 1699 * task management user interfaces</b>. This should never be used for 1700 * core logic in an application, such as deciding between different 1701 * behaviors based on the information found here. Such uses are 1702 * <em>not</em> supported, and will likely break in the future. For 1703 * example, if multiple applications can be actively running at the 1704 * same time, assumptions made about the meaning of the data here for 1705 * purposes of control flow will be incorrect.</p> 1706 * 1707 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 1708 * is no longer available to third party 1709 * applications: the introduction of document-centric recents means 1710 * it can leak person information to the caller. For backwards compatibility, 1711 * it will still retu rn a small subset of its data: at least the caller's 1712 * own tasks, and possibly some other tasks 1713 * such as home that are known to not be sensitive. 1714 * 1715 * @param maxNum The maximum number of entries to return in the list. The 1716 * actual number returned may be smaller, depending on how many tasks the 1717 * user has started. 1718 * 1719 * @return Returns a list of RunningTaskInfo records describing each of 1720 * the running tasks. 1721 */ 1722 @Deprecated 1723 public List<RunningTaskInfo> getRunningTasks(int maxNum) 1724 throws SecurityException { 1725 try { 1726 return ActivityManagerNative.getDefault().getTasks(maxNum, 0); 1727 } catch (RemoteException e) { 1728 // System dead, we will be dead too soon! 1729 return null; 1730 } 1731 } 1732 1733 /** 1734 * Completely remove the given task. 1735 * 1736 * @param taskId Identifier of the task to be removed. 1737 * @return Returns true if the given task was found and removed. 1738 * 1739 * @hide 1740 */ 1741 public boolean removeTask(int taskId) throws SecurityException { 1742 try { 1743 return ActivityManagerNative.getDefault().removeTask(taskId); 1744 } catch (RemoteException e) { 1745 // System dead, we will be dead too soon! 1746 return false; 1747 } 1748 } 1749 1750 /** 1751 * Metadata related to the {@link TaskThumbnail}. 1752 * 1753 * @hide 1754 */ 1755 public static class TaskThumbnailInfo implements Parcelable { 1756 /** @hide */ 1757 public static final String ATTR_TASK_THUMBNAILINFO_PREFIX = "task_thumbnailinfo_"; 1758 private static final String ATTR_TASK_WIDTH = 1759 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_width"; 1760 private static final String ATTR_TASK_HEIGHT = 1761 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_height"; 1762 private static final String ATTR_SCREEN_ORIENTATION = 1763 ATTR_TASK_THUMBNAILINFO_PREFIX + "screen_orientation"; 1764 1765 public int taskWidth; 1766 public int taskHeight; 1767 public int screenOrientation; 1768 1769 public TaskThumbnailInfo() { 1770 // Do nothing 1771 } 1772 1773 private TaskThumbnailInfo(Parcel source) { 1774 readFromParcel(source); 1775 } 1776 1777 /** 1778 * Resets this info state to the initial state. 1779 * @hide 1780 */ 1781 public void reset() { 1782 taskWidth = 0; 1783 taskHeight = 0; 1784 screenOrientation = 0; 1785 } 1786 1787 /** @hide */ 1788 public void saveToXml(XmlSerializer out) throws IOException { 1789 out.attribute(null, ATTR_TASK_WIDTH, Integer.toString(taskWidth)); 1790 out.attribute(null, ATTR_TASK_HEIGHT, Integer.toString(taskHeight)); 1791 out.attribute(null, ATTR_SCREEN_ORIENTATION, Integer.toString(screenOrientation)); 1792 } 1793 1794 /** @hide */ 1795 public void restoreFromXml(String attrName, String attrValue) { 1796 if (ATTR_TASK_WIDTH.equals(attrName)) { 1797 taskWidth = Integer.parseInt(attrValue); 1798 } else if (ATTR_TASK_HEIGHT.equals(attrName)) { 1799 taskHeight = Integer.parseInt(attrValue); 1800 } else if (ATTR_SCREEN_ORIENTATION.equals(attrName)) { 1801 screenOrientation = Integer.parseInt(attrValue); 1802 } 1803 } 1804 1805 public int describeContents() { 1806 return 0; 1807 } 1808 1809 public void writeToParcel(Parcel dest, int flags) { 1810 dest.writeInt(taskWidth); 1811 dest.writeInt(taskHeight); 1812 dest.writeInt(screenOrientation); 1813 } 1814 1815 public void readFromParcel(Parcel source) { 1816 taskWidth = source.readInt(); 1817 taskHeight = source.readInt(); 1818 screenOrientation = source.readInt(); 1819 } 1820 1821 public static final Creator<TaskThumbnailInfo> CREATOR = new Creator<TaskThumbnailInfo>() { 1822 public TaskThumbnailInfo createFromParcel(Parcel source) { 1823 return new TaskThumbnailInfo(source); 1824 } 1825 public TaskThumbnailInfo[] newArray(int size) { 1826 return new TaskThumbnailInfo[size]; 1827 } 1828 }; 1829 } 1830 1831 /** @hide */ 1832 public static class TaskThumbnail implements Parcelable { 1833 public Bitmap mainThumbnail; 1834 public ParcelFileDescriptor thumbnailFileDescriptor; 1835 public TaskThumbnailInfo thumbnailInfo; 1836 1837 public TaskThumbnail() { 1838 } 1839 1840 private TaskThumbnail(Parcel source) { 1841 readFromParcel(source); 1842 } 1843 1844 public int describeContents() { 1845 if (thumbnailFileDescriptor != null) { 1846 return thumbnailFileDescriptor.describeContents(); 1847 } 1848 return 0; 1849 } 1850 1851 public void writeToParcel(Parcel dest, int flags) { 1852 if (mainThumbnail != null) { 1853 dest.writeInt(1); 1854 mainThumbnail.writeToParcel(dest, flags); 1855 } else { 1856 dest.writeInt(0); 1857 } 1858 if (thumbnailFileDescriptor != null) { 1859 dest.writeInt(1); 1860 thumbnailFileDescriptor.writeToParcel(dest, flags); 1861 } else { 1862 dest.writeInt(0); 1863 } 1864 if (thumbnailInfo != null) { 1865 dest.writeInt(1); 1866 thumbnailInfo.writeToParcel(dest, flags); 1867 } else { 1868 dest.writeInt(0); 1869 } 1870 } 1871 1872 public void readFromParcel(Parcel source) { 1873 if (source.readInt() != 0) { 1874 mainThumbnail = Bitmap.CREATOR.createFromParcel(source); 1875 } else { 1876 mainThumbnail = null; 1877 } 1878 if (source.readInt() != 0) { 1879 thumbnailFileDescriptor = ParcelFileDescriptor.CREATOR.createFromParcel(source); 1880 } else { 1881 thumbnailFileDescriptor = null; 1882 } 1883 if (source.readInt() != 0) { 1884 thumbnailInfo = TaskThumbnailInfo.CREATOR.createFromParcel(source); 1885 } else { 1886 thumbnailInfo = null; 1887 } 1888 } 1889 1890 public static final Creator<TaskThumbnail> CREATOR = new Creator<TaskThumbnail>() { 1891 public TaskThumbnail createFromParcel(Parcel source) { 1892 return new TaskThumbnail(source); 1893 } 1894 public TaskThumbnail[] newArray(int size) { 1895 return new TaskThumbnail[size]; 1896 } 1897 }; 1898 } 1899 1900 /** @hide */ 1901 public TaskThumbnail getTaskThumbnail(int id) throws SecurityException { 1902 try { 1903 return ActivityManagerNative.getDefault().getTaskThumbnail(id); 1904 } catch (RemoteException e) { 1905 // System dead, we will be dead too soon! 1906 return null; 1907 } 1908 } 1909 1910 /** @hide */ 1911 public boolean isInHomeStack(int taskId) { 1912 try { 1913 return ActivityManagerNative.getDefault().isInHomeStack(taskId); 1914 } catch (RemoteException e) { 1915 // System dead, we will be dead too soon! 1916 return false; 1917 } 1918 } 1919 1920 /** 1921 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 1922 * activity along with the task, so it is positioned immediately behind 1923 * the task. 1924 */ 1925 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 1926 1927 /** 1928 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 1929 * user-instigated action, so the current activity will not receive a 1930 * hint that the user is leaving. 1931 */ 1932 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 1933 1934 /** 1935 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 1936 * with a null options argument. 1937 * 1938 * @param taskId The identifier of the task to be moved, as found in 1939 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 1940 * @param flags Additional operational flags, 0 or more of 1941 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 1942 */ 1943 public void moveTaskToFront(int taskId, int flags) { 1944 moveTaskToFront(taskId, flags, null); 1945 } 1946 1947 /** 1948 * Ask that the task associated with a given task ID be moved to the 1949 * front of the stack, so it is now visible to the user. Requires that 1950 * the caller hold permission {@link android.Manifest.permission#REORDER_TASKS} 1951 * or a SecurityException will be thrown. 1952 * 1953 * @param taskId The identifier of the task to be moved, as found in 1954 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 1955 * @param flags Additional operational flags, 0 or more of 1956 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 1957 * @param options Additional options for the operation, either null or 1958 * as per {@link Context#startActivity(Intent, android.os.Bundle) 1959 * Context.startActivity(Intent, Bundle)}. 1960 */ 1961 public void moveTaskToFront(int taskId, int flags, Bundle options) { 1962 try { 1963 ActivityManagerNative.getDefault().moveTaskToFront(taskId, flags, options); 1964 } catch (RemoteException e) { 1965 // System dead, we will be dead too soon! 1966 } 1967 } 1968 1969 /** 1970 * Information you can retrieve about a particular Service that is 1971 * currently running in the system. 1972 */ 1973 public static class RunningServiceInfo implements Parcelable { 1974 /** 1975 * The service component. 1976 */ 1977 public ComponentName service; 1978 1979 /** 1980 * If non-zero, this is the process the service is running in. 1981 */ 1982 public int pid; 1983 1984 /** 1985 * The UID that owns this service. 1986 */ 1987 public int uid; 1988 1989 /** 1990 * The name of the process this service runs in. 1991 */ 1992 public String process; 1993 1994 /** 1995 * Set to true if the service has asked to run as a foreground process. 1996 */ 1997 public boolean foreground; 1998 1999 /** 2000 * The time when the service was first made active, either by someone 2001 * starting or binding to it. This 2002 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2003 */ 2004 public long activeSince; 2005 2006 /** 2007 * Set to true if this service has been explicitly started. 2008 */ 2009 public boolean started; 2010 2011 /** 2012 * Number of clients connected to the service. 2013 */ 2014 public int clientCount; 2015 2016 /** 2017 * Number of times the service's process has crashed while the service 2018 * is running. 2019 */ 2020 public int crashCount; 2021 2022 /** 2023 * The time when there was last activity in the service (either 2024 * explicit requests to start it or clients binding to it). This 2025 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2026 */ 2027 public long lastActivityTime; 2028 2029 /** 2030 * If non-zero, this service is not currently running, but scheduled to 2031 * restart at the given time. 2032 */ 2033 public long restarting; 2034 2035 /** 2036 * Bit for {@link #flags}: set if this service has been 2037 * explicitly started. 2038 */ 2039 public static final int FLAG_STARTED = 1<<0; 2040 2041 /** 2042 * Bit for {@link #flags}: set if the service has asked to 2043 * run as a foreground process. 2044 */ 2045 public static final int FLAG_FOREGROUND = 1<<1; 2046 2047 /** 2048 * Bit for {@link #flags): set if the service is running in a 2049 * core system process. 2050 */ 2051 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2052 2053 /** 2054 * Bit for {@link #flags): set if the service is running in a 2055 * persistent process. 2056 */ 2057 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2058 2059 /** 2060 * Running flags. 2061 */ 2062 public int flags; 2063 2064 /** 2065 * For special services that are bound to by system code, this is 2066 * the package that holds the binding. 2067 */ 2068 public String clientPackage; 2069 2070 /** 2071 * For special services that are bound to by system code, this is 2072 * a string resource providing a user-visible label for who the 2073 * client is. 2074 */ 2075 public int clientLabel; 2076 2077 public RunningServiceInfo() { 2078 } 2079 2080 public int describeContents() { 2081 return 0; 2082 } 2083 2084 public void writeToParcel(Parcel dest, int flags) { 2085 ComponentName.writeToParcel(service, dest); 2086 dest.writeInt(pid); 2087 dest.writeInt(uid); 2088 dest.writeString(process); 2089 dest.writeInt(foreground ? 1 : 0); 2090 dest.writeLong(activeSince); 2091 dest.writeInt(started ? 1 : 0); 2092 dest.writeInt(clientCount); 2093 dest.writeInt(crashCount); 2094 dest.writeLong(lastActivityTime); 2095 dest.writeLong(restarting); 2096 dest.writeInt(this.flags); 2097 dest.writeString(clientPackage); 2098 dest.writeInt(clientLabel); 2099 } 2100 2101 public void readFromParcel(Parcel source) { 2102 service = ComponentName.readFromParcel(source); 2103 pid = source.readInt(); 2104 uid = source.readInt(); 2105 process = source.readString(); 2106 foreground = source.readInt() != 0; 2107 activeSince = source.readLong(); 2108 started = source.readInt() != 0; 2109 clientCount = source.readInt(); 2110 crashCount = source.readInt(); 2111 lastActivityTime = source.readLong(); 2112 restarting = source.readLong(); 2113 flags = source.readInt(); 2114 clientPackage = source.readString(); 2115 clientLabel = source.readInt(); 2116 } 2117 2118 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2119 public RunningServiceInfo createFromParcel(Parcel source) { 2120 return new RunningServiceInfo(source); 2121 } 2122 public RunningServiceInfo[] newArray(int size) { 2123 return new RunningServiceInfo[size]; 2124 } 2125 }; 2126 2127 private RunningServiceInfo(Parcel source) { 2128 readFromParcel(source); 2129 } 2130 } 2131 2132 /** 2133 * Return a list of the services that are currently running. 2134 * 2135 * <p><b>Note: this method is only intended for debugging or implementing 2136 * service management type user interfaces.</b></p> 2137 * 2138 * @param maxNum The maximum number of entries to return in the list. The 2139 * actual number returned may be smaller, depending on how many services 2140 * are running. 2141 * 2142 * @return Returns a list of RunningServiceInfo records describing each of 2143 * the running tasks. 2144 */ 2145 public List<RunningServiceInfo> getRunningServices(int maxNum) 2146 throws SecurityException { 2147 try { 2148 return ActivityManagerNative.getDefault() 2149 .getServices(maxNum, 0); 2150 } catch (RemoteException e) { 2151 // System dead, we will be dead too soon! 2152 return null; 2153 } 2154 } 2155 2156 /** 2157 * Returns a PendingIntent you can start to show a control panel for the 2158 * given running service. If the service does not have a control panel, 2159 * null is returned. 2160 */ 2161 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2162 throws SecurityException { 2163 try { 2164 return ActivityManagerNative.getDefault() 2165 .getRunningServiceControlPanel(service); 2166 } catch (RemoteException e) { 2167 // System dead, we will be dead too soon! 2168 return null; 2169 } 2170 } 2171 2172 /** 2173 * Information you can retrieve about the available memory through 2174 * {@link ActivityManager#getMemoryInfo}. 2175 */ 2176 public static class MemoryInfo implements Parcelable { 2177 /** 2178 * The available memory on the system. This number should not 2179 * be considered absolute: due to the nature of the kernel, a significant 2180 * portion of this memory is actually in use and needed for the overall 2181 * system to run well. 2182 */ 2183 public long availMem; 2184 2185 /** 2186 * The total memory accessible by the kernel. This is basically the 2187 * RAM size of the device, not including below-kernel fixed allocations 2188 * like DMA buffers, RAM for the baseband CPU, etc. 2189 */ 2190 public long totalMem; 2191 2192 /** 2193 * The threshold of {@link #availMem} at which we consider memory to be 2194 * low and start killing background services and other non-extraneous 2195 * processes. 2196 */ 2197 public long threshold; 2198 2199 /** 2200 * Set to true if the system considers itself to currently be in a low 2201 * memory situation. 2202 */ 2203 public boolean lowMemory; 2204 2205 /** @hide */ 2206 public long hiddenAppThreshold; 2207 /** @hide */ 2208 public long secondaryServerThreshold; 2209 /** @hide */ 2210 public long visibleAppThreshold; 2211 /** @hide */ 2212 public long foregroundAppThreshold; 2213 2214 public MemoryInfo() { 2215 } 2216 2217 public int describeContents() { 2218 return 0; 2219 } 2220 2221 public void writeToParcel(Parcel dest, int flags) { 2222 dest.writeLong(availMem); 2223 dest.writeLong(totalMem); 2224 dest.writeLong(threshold); 2225 dest.writeInt(lowMemory ? 1 : 0); 2226 dest.writeLong(hiddenAppThreshold); 2227 dest.writeLong(secondaryServerThreshold); 2228 dest.writeLong(visibleAppThreshold); 2229 dest.writeLong(foregroundAppThreshold); 2230 } 2231 2232 public void readFromParcel(Parcel source) { 2233 availMem = source.readLong(); 2234 totalMem = source.readLong(); 2235 threshold = source.readLong(); 2236 lowMemory = source.readInt() != 0; 2237 hiddenAppThreshold = source.readLong(); 2238 secondaryServerThreshold = source.readLong(); 2239 visibleAppThreshold = source.readLong(); 2240 foregroundAppThreshold = source.readLong(); 2241 } 2242 2243 public static final Creator<MemoryInfo> CREATOR 2244 = new Creator<MemoryInfo>() { 2245 public MemoryInfo createFromParcel(Parcel source) { 2246 return new MemoryInfo(source); 2247 } 2248 public MemoryInfo[] newArray(int size) { 2249 return new MemoryInfo[size]; 2250 } 2251 }; 2252 2253 private MemoryInfo(Parcel source) { 2254 readFromParcel(source); 2255 } 2256 } 2257 2258 /** 2259 * Return general information about the memory state of the system. This 2260 * can be used to help decide how to manage your own memory, though note 2261 * that polling is not recommended and 2262 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2263 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2264 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2265 * level of your process as needed, which gives a better hint for how to 2266 * manage its memory. 2267 */ 2268 public void getMemoryInfo(MemoryInfo outInfo) { 2269 try { 2270 ActivityManagerNative.getDefault().getMemoryInfo(outInfo); 2271 } catch (RemoteException e) { 2272 } 2273 } 2274 2275 /** 2276 * Information you can retrieve about an ActivityStack in the system. 2277 * @hide 2278 */ 2279 public static class StackInfo implements Parcelable { 2280 public int stackId; 2281 public Rect bounds = new Rect(); 2282 public int[] taskIds; 2283 public String[] taskNames; 2284 public Rect[] taskBounds; 2285 public int[] taskUserIds; 2286 public int displayId; 2287 public int userId; 2288 2289 @Override 2290 public int describeContents() { 2291 return 0; 2292 } 2293 2294 @Override 2295 public void writeToParcel(Parcel dest, int flags) { 2296 dest.writeInt(stackId); 2297 dest.writeInt(bounds.left); 2298 dest.writeInt(bounds.top); 2299 dest.writeInt(bounds.right); 2300 dest.writeInt(bounds.bottom); 2301 dest.writeIntArray(taskIds); 2302 dest.writeStringArray(taskNames); 2303 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2304 dest.writeInt(boundsCount); 2305 for (int i = 0; i < boundsCount; i++) { 2306 dest.writeInt(taskBounds[i].left); 2307 dest.writeInt(taskBounds[i].top); 2308 dest.writeInt(taskBounds[i].right); 2309 dest.writeInt(taskBounds[i].bottom); 2310 } 2311 dest.writeIntArray(taskUserIds); 2312 dest.writeInt(displayId); 2313 dest.writeInt(userId); 2314 } 2315 2316 public void readFromParcel(Parcel source) { 2317 stackId = source.readInt(); 2318 bounds = new Rect( 2319 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2320 taskIds = source.createIntArray(); 2321 taskNames = source.createStringArray(); 2322 final int boundsCount = source.readInt(); 2323 if (boundsCount > 0) { 2324 taskBounds = new Rect[boundsCount]; 2325 for (int i = 0; i < boundsCount; i++) { 2326 taskBounds[i] = new Rect(); 2327 taskBounds[i].set( 2328 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2329 } 2330 } else { 2331 taskBounds = null; 2332 } 2333 taskUserIds = source.createIntArray(); 2334 displayId = source.readInt(); 2335 userId = source.readInt(); 2336 } 2337 2338 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2339 @Override 2340 public StackInfo createFromParcel(Parcel source) { 2341 return new StackInfo(source); 2342 } 2343 @Override 2344 public StackInfo[] newArray(int size) { 2345 return new StackInfo[size]; 2346 } 2347 }; 2348 2349 public StackInfo() { 2350 } 2351 2352 private StackInfo(Parcel source) { 2353 readFromParcel(source); 2354 } 2355 2356 public String toString(String prefix) { 2357 StringBuilder sb = new StringBuilder(256); 2358 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2359 sb.append(" bounds="); sb.append(bounds.toShortString()); 2360 sb.append(" displayId="); sb.append(displayId); 2361 sb.append(" userId="); sb.append(userId); 2362 sb.append("\n"); 2363 prefix = prefix + " "; 2364 for (int i = 0; i < taskIds.length; ++i) { 2365 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2366 sb.append(": "); sb.append(taskNames[i]); 2367 if (taskBounds != null) { 2368 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2369 } 2370 sb.append(" userId=").append(taskUserIds[i]); 2371 sb.append("\n"); 2372 } 2373 return sb.toString(); 2374 } 2375 2376 @Override 2377 public String toString() { 2378 return toString(""); 2379 } 2380 } 2381 2382 /** 2383 * @hide 2384 */ 2385 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2386 try { 2387 return ActivityManagerNative.getDefault().clearApplicationUserData(packageName, 2388 observer, UserHandle.myUserId()); 2389 } catch (RemoteException e) { 2390 return false; 2391 } 2392 } 2393 2394 /** 2395 * Permits an application to erase its own data from disk. This is equivalent to 2396 * the user choosing to clear the app's data from within the device settings UI. It 2397 * erases all dynamic data associated with the app -- its private data and data in its 2398 * private area on external storage -- but does not remove the installed application 2399 * itself, nor any OBB files. 2400 * 2401 * @return {@code true} if the application successfully requested that the application's 2402 * data be erased; {@code false} otherwise. 2403 */ 2404 public boolean clearApplicationUserData() { 2405 return clearApplicationUserData(mContext.getPackageName(), null); 2406 } 2407 2408 2409 /** 2410 * Permits an application to get the persistent URI permissions granted to another. 2411 * 2412 * <p>Typically called by Settings. 2413 * 2414 * @param packageName application to look for the granted permissions 2415 * @return list of granted URI permissions 2416 * 2417 * @hide 2418 */ 2419 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2420 try { 2421 return ActivityManagerNative.getDefault().getGrantedUriPermissions(packageName, 2422 UserHandle.myUserId()); 2423 } catch (RemoteException e) { 2424 Log.e(TAG, "Couldn't get granted URI permissions for :" + packageName, e); 2425 return ParceledListSlice.emptyList(); 2426 } 2427 } 2428 2429 /** 2430 * Permits an application to clear the persistent URI permissions granted to another. 2431 * 2432 * <p>Typically called by Settings. 2433 * 2434 * @param packageName application to clear its granted permissions 2435 * 2436 * @hide 2437 */ 2438 public void clearGrantedUriPermissions(String packageName) { 2439 try { 2440 ActivityManagerNative.getDefault().clearGrantedUriPermissions(packageName, 2441 UserHandle.myUserId()); 2442 } catch (RemoteException e) { 2443 Log.e(TAG, "Couldn't clear granted URI permissions for :" + packageName, e); 2444 } 2445 } 2446 2447 /** 2448 * Information you can retrieve about any processes that are in an error condition. 2449 */ 2450 public static class ProcessErrorStateInfo implements Parcelable { 2451 /** 2452 * Condition codes 2453 */ 2454 public static final int NO_ERROR = 0; 2455 public static final int CRASHED = 1; 2456 public static final int NOT_RESPONDING = 2; 2457 2458 /** 2459 * The condition that the process is in. 2460 */ 2461 public int condition; 2462 2463 /** 2464 * The process name in which the crash or error occurred. 2465 */ 2466 public String processName; 2467 2468 /** 2469 * The pid of this process; 0 if none 2470 */ 2471 public int pid; 2472 2473 /** 2474 * The kernel user-ID that has been assigned to this process; 2475 * currently this is not a unique ID (multiple applications can have 2476 * the same uid). 2477 */ 2478 public int uid; 2479 2480 /** 2481 * The activity name associated with the error, if known. May be null. 2482 */ 2483 public String tag; 2484 2485 /** 2486 * A short message describing the error condition. 2487 */ 2488 public String shortMsg; 2489 2490 /** 2491 * A long message describing the error condition. 2492 */ 2493 public String longMsg; 2494 2495 /** 2496 * The stack trace where the error originated. May be null. 2497 */ 2498 public String stackTrace; 2499 2500 /** 2501 * to be deprecated: This value will always be null. 2502 */ 2503 public byte[] crashData = null; 2504 2505 public ProcessErrorStateInfo() { 2506 } 2507 2508 @Override 2509 public int describeContents() { 2510 return 0; 2511 } 2512 2513 @Override 2514 public void writeToParcel(Parcel dest, int flags) { 2515 dest.writeInt(condition); 2516 dest.writeString(processName); 2517 dest.writeInt(pid); 2518 dest.writeInt(uid); 2519 dest.writeString(tag); 2520 dest.writeString(shortMsg); 2521 dest.writeString(longMsg); 2522 dest.writeString(stackTrace); 2523 } 2524 2525 public void readFromParcel(Parcel source) { 2526 condition = source.readInt(); 2527 processName = source.readString(); 2528 pid = source.readInt(); 2529 uid = source.readInt(); 2530 tag = source.readString(); 2531 shortMsg = source.readString(); 2532 longMsg = source.readString(); 2533 stackTrace = source.readString(); 2534 } 2535 2536 public static final Creator<ProcessErrorStateInfo> CREATOR = 2537 new Creator<ProcessErrorStateInfo>() { 2538 public ProcessErrorStateInfo createFromParcel(Parcel source) { 2539 return new ProcessErrorStateInfo(source); 2540 } 2541 public ProcessErrorStateInfo[] newArray(int size) { 2542 return new ProcessErrorStateInfo[size]; 2543 } 2544 }; 2545 2546 private ProcessErrorStateInfo(Parcel source) { 2547 readFromParcel(source); 2548 } 2549 } 2550 2551 /** 2552 * Returns a list of any processes that are currently in an error condition. The result 2553 * will be null if all processes are running properly at this time. 2554 * 2555 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 2556 * current error conditions (it will not return an empty list). This list ordering is not 2557 * specified. 2558 */ 2559 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 2560 try { 2561 return ActivityManagerNative.getDefault().getProcessesInErrorState(); 2562 } catch (RemoteException e) { 2563 return null; 2564 } 2565 } 2566 2567 /** 2568 * Information you can retrieve about a running process. 2569 */ 2570 public static class RunningAppProcessInfo implements Parcelable { 2571 /** 2572 * The name of the process that this object is associated with 2573 */ 2574 public String processName; 2575 2576 /** 2577 * The pid of this process; 0 if none 2578 */ 2579 public int pid; 2580 2581 /** 2582 * The user id of this process. 2583 */ 2584 public int uid; 2585 2586 /** 2587 * All packages that have been loaded into the process. 2588 */ 2589 public String pkgList[]; 2590 2591 /** 2592 * Constant for {@link #flags}: this is an app that is unable to 2593 * correctly save its state when going to the background, 2594 * so it can not be killed while in the background. 2595 * @hide 2596 */ 2597 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 2598 2599 /** 2600 * Constant for {@link #flags}: this process is associated with a 2601 * persistent system app. 2602 * @hide 2603 */ 2604 public static final int FLAG_PERSISTENT = 1<<1; 2605 2606 /** 2607 * Constant for {@link #flags}: this process is associated with a 2608 * persistent system app. 2609 * @hide 2610 */ 2611 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 2612 2613 /** 2614 * Flags of information. May be any of 2615 * {@link #FLAG_CANT_SAVE_STATE}. 2616 * @hide 2617 */ 2618 public int flags; 2619 2620 /** 2621 * Last memory trim level reported to the process: corresponds to 2622 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2623 * ComponentCallbacks2.onTrimMemory(int)}. 2624 */ 2625 public int lastTrimLevel; 2626 2627 /** 2628 * Constant for {@link #importance}: This process is running the 2629 * foreground UI; that is, it is the thing currently at the top of the screen 2630 * that the user is interacting with. 2631 */ 2632 public static final int IMPORTANCE_FOREGROUND = 100; 2633 2634 /** 2635 * Constant for {@link #importance}: This process is running a foreground 2636 * service, for example to perform music playback even while the user is 2637 * not immediately in the app. This generally indicates that the process 2638 * is doing something the user actively cares about. 2639 */ 2640 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 2641 2642 /** 2643 * Constant for {@link #importance}: This process is running the foreground 2644 * UI, but the device is asleep so it is not visible to the user. This means 2645 * the user is not really aware of the process, because they can not see or 2646 * interact with it, but it is quite important because it what they expect to 2647 * return to once unlocking the device. 2648 */ 2649 public static final int IMPORTANCE_TOP_SLEEPING = 150; 2650 2651 /** 2652 * Constant for {@link #importance}: This process is running something 2653 * that is actively visible to the user, though not in the immediate 2654 * foreground. This may be running a window that is behind the current 2655 * foreground (so paused and with its state saved, not interacting with 2656 * the user, but visible to them to some degree); it may also be running 2657 * other services under the system's control that it inconsiders important. 2658 */ 2659 public static final int IMPORTANCE_VISIBLE = 200; 2660 2661 /** 2662 * Constant for {@link #importance}: This process is not something the user 2663 * is directly aware of, but is otherwise perceptable to them to some degree. 2664 */ 2665 public static final int IMPORTANCE_PERCEPTIBLE = 130; 2666 2667 /** 2668 * Constant for {@link #importance}: This process is running an 2669 * application that can not save its state, and thus can't be killed 2670 * while in the background. 2671 * @hide 2672 */ 2673 public static final int IMPORTANCE_CANT_SAVE_STATE = 170; 2674 2675 /** 2676 * Constant for {@link #importance}: This process is contains services 2677 * that should remain running. These are background services apps have 2678 * started, not something the user is aware of, so they may be killed by 2679 * the system relatively freely (though it is generally desired that they 2680 * stay running as long as they want to). 2681 */ 2682 public static final int IMPORTANCE_SERVICE = 300; 2683 2684 /** 2685 * Constant for {@link #importance}: This process process contains 2686 * background code that is expendable. 2687 */ 2688 public static final int IMPORTANCE_BACKGROUND = 400; 2689 2690 /** 2691 * Constant for {@link #importance}: This process is empty of any 2692 * actively running code. 2693 */ 2694 public static final int IMPORTANCE_EMPTY = 500; 2695 2696 /** 2697 * Constant for {@link #importance}: This process does not exist. 2698 */ 2699 public static final int IMPORTANCE_GONE = 1000; 2700 2701 /** @hide */ 2702 public static int procStateToImportance(int procState) { 2703 if (procState == PROCESS_STATE_NONEXISTENT) { 2704 return IMPORTANCE_GONE; 2705 } else if (procState >= PROCESS_STATE_HOME) { 2706 return IMPORTANCE_BACKGROUND; 2707 } else if (procState >= PROCESS_STATE_SERVICE) { 2708 return IMPORTANCE_SERVICE; 2709 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 2710 return IMPORTANCE_CANT_SAVE_STATE; 2711 } else if (procState >= PROCESS_STATE_IMPORTANT_BACKGROUND) { 2712 return IMPORTANCE_PERCEPTIBLE; 2713 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 2714 return IMPORTANCE_VISIBLE; 2715 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 2716 return IMPORTANCE_TOP_SLEEPING; 2717 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 2718 return IMPORTANCE_FOREGROUND_SERVICE; 2719 } else { 2720 return IMPORTANCE_FOREGROUND; 2721 } 2722 } 2723 2724 /** 2725 * The relative importance level that the system places on this 2726 * process. May be one of {@link #IMPORTANCE_FOREGROUND}, 2727 * {@link #IMPORTANCE_VISIBLE}, {@link #IMPORTANCE_SERVICE}, 2728 * {@link #IMPORTANCE_BACKGROUND}, or {@link #IMPORTANCE_EMPTY}. These 2729 * constants are numbered so that "more important" values are always 2730 * smaller than "less important" values. 2731 */ 2732 public int importance; 2733 2734 /** 2735 * An additional ordering within a particular {@link #importance} 2736 * category, providing finer-grained information about the relative 2737 * utility of processes within a category. This number means nothing 2738 * except that a smaller values are more recently used (and thus 2739 * more important). Currently an LRU value is only maintained for 2740 * the {@link #IMPORTANCE_BACKGROUND} category, though others may 2741 * be maintained in the future. 2742 */ 2743 public int lru; 2744 2745 /** 2746 * Constant for {@link #importanceReasonCode}: nothing special has 2747 * been specified for the reason for this level. 2748 */ 2749 public static final int REASON_UNKNOWN = 0; 2750 2751 /** 2752 * Constant for {@link #importanceReasonCode}: one of the application's 2753 * content providers is being used by another process. The pid of 2754 * the client process is in {@link #importanceReasonPid} and the 2755 * target provider in this process is in 2756 * {@link #importanceReasonComponent}. 2757 */ 2758 public static final int REASON_PROVIDER_IN_USE = 1; 2759 2760 /** 2761 * Constant for {@link #importanceReasonCode}: one of the application's 2762 * content providers is being used by another process. The pid of 2763 * the client process is in {@link #importanceReasonPid} and the 2764 * target provider in this process is in 2765 * {@link #importanceReasonComponent}. 2766 */ 2767 public static final int REASON_SERVICE_IN_USE = 2; 2768 2769 /** 2770 * The reason for {@link #importance}, if any. 2771 */ 2772 public int importanceReasonCode; 2773 2774 /** 2775 * For the specified values of {@link #importanceReasonCode}, this 2776 * is the process ID of the other process that is a client of this 2777 * process. This will be 0 if no other process is using this one. 2778 */ 2779 public int importanceReasonPid; 2780 2781 /** 2782 * For the specified values of {@link #importanceReasonCode}, this 2783 * is the name of the component that is being used in this process. 2784 */ 2785 public ComponentName importanceReasonComponent; 2786 2787 /** 2788 * When {@link #importanceReasonPid} is non-0, this is the importance 2789 * of the other pid. @hide 2790 */ 2791 public int importanceReasonImportance; 2792 2793 /** 2794 * Current process state, as per PROCESS_STATE_* constants. 2795 * @hide 2796 */ 2797 public int processState; 2798 2799 public RunningAppProcessInfo() { 2800 importance = IMPORTANCE_FOREGROUND; 2801 importanceReasonCode = REASON_UNKNOWN; 2802 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 2803 } 2804 2805 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 2806 processName = pProcessName; 2807 pid = pPid; 2808 pkgList = pArr; 2809 } 2810 2811 public int describeContents() { 2812 return 0; 2813 } 2814 2815 public void writeToParcel(Parcel dest, int flags) { 2816 dest.writeString(processName); 2817 dest.writeInt(pid); 2818 dest.writeInt(uid); 2819 dest.writeStringArray(pkgList); 2820 dest.writeInt(this.flags); 2821 dest.writeInt(lastTrimLevel); 2822 dest.writeInt(importance); 2823 dest.writeInt(lru); 2824 dest.writeInt(importanceReasonCode); 2825 dest.writeInt(importanceReasonPid); 2826 ComponentName.writeToParcel(importanceReasonComponent, dest); 2827 dest.writeInt(importanceReasonImportance); 2828 dest.writeInt(processState); 2829 } 2830 2831 public void readFromParcel(Parcel source) { 2832 processName = source.readString(); 2833 pid = source.readInt(); 2834 uid = source.readInt(); 2835 pkgList = source.readStringArray(); 2836 flags = source.readInt(); 2837 lastTrimLevel = source.readInt(); 2838 importance = source.readInt(); 2839 lru = source.readInt(); 2840 importanceReasonCode = source.readInt(); 2841 importanceReasonPid = source.readInt(); 2842 importanceReasonComponent = ComponentName.readFromParcel(source); 2843 importanceReasonImportance = source.readInt(); 2844 processState = source.readInt(); 2845 } 2846 2847 public static final Creator<RunningAppProcessInfo> CREATOR = 2848 new Creator<RunningAppProcessInfo>() { 2849 public RunningAppProcessInfo createFromParcel(Parcel source) { 2850 return new RunningAppProcessInfo(source); 2851 } 2852 public RunningAppProcessInfo[] newArray(int size) { 2853 return new RunningAppProcessInfo[size]; 2854 } 2855 }; 2856 2857 private RunningAppProcessInfo(Parcel source) { 2858 readFromParcel(source); 2859 } 2860 } 2861 2862 /** 2863 * Returns a list of application processes installed on external media 2864 * that are running on the device. 2865 * 2866 * <p><b>Note: this method is only intended for debugging or building 2867 * a user-facing process management UI.</b></p> 2868 * 2869 * @return Returns a list of ApplicationInfo records, or null if none 2870 * This list ordering is not specified. 2871 * @hide 2872 */ 2873 public List<ApplicationInfo> getRunningExternalApplications() { 2874 try { 2875 return ActivityManagerNative.getDefault().getRunningExternalApplications(); 2876 } catch (RemoteException e) { 2877 return null; 2878 } 2879 } 2880 2881 /** 2882 * Sets the memory trim mode for a process and schedules a memory trim operation. 2883 * 2884 * <p><b>Note: this method is only intended for testing framework.</b></p> 2885 * 2886 * @return Returns true if successful. 2887 * @hide 2888 */ 2889 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 2890 try { 2891 return ActivityManagerNative.getDefault().setProcessMemoryTrimLevel(process, userId, 2892 level); 2893 } catch (RemoteException e) { 2894 return false; 2895 } 2896 } 2897 2898 /** 2899 * Returns a list of application processes that are running on the device. 2900 * 2901 * <p><b>Note: this method is only intended for debugging or building 2902 * a user-facing process management UI.</b></p> 2903 * 2904 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 2905 * running processes (it will not return an empty list). This list ordering is not 2906 * specified. 2907 */ 2908 public List<RunningAppProcessInfo> getRunningAppProcesses() { 2909 try { 2910 return ActivityManagerNative.getDefault().getRunningAppProcesses(); 2911 } catch (RemoteException e) { 2912 return null; 2913 } 2914 } 2915 2916 /** 2917 * Return the importance of a given package name, based on the processes that are 2918 * currently running. The return value is one of the importance constants defined 2919 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 2920 * processes that this package has code running inside of. If there are no processes 2921 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 2922 * @hide 2923 */ 2924 @SystemApi 2925 public int getPackageImportance(String packageName) { 2926 try { 2927 int procState = ActivityManagerNative.getDefault().getPackageProcessState(packageName, 2928 mContext.getOpPackageName()); 2929 return RunningAppProcessInfo.procStateToImportance(procState); 2930 } catch (RemoteException e) { 2931 return RunningAppProcessInfo.IMPORTANCE_GONE; 2932 } 2933 } 2934 2935 /** 2936 * Return global memory state information for the calling process. This 2937 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 2938 * only fields that will be filled in are 2939 * {@link RunningAppProcessInfo#pid}, 2940 * {@link RunningAppProcessInfo#uid}, 2941 * {@link RunningAppProcessInfo#lastTrimLevel}, 2942 * {@link RunningAppProcessInfo#importance}, 2943 * {@link RunningAppProcessInfo#lru}, and 2944 * {@link RunningAppProcessInfo#importanceReasonCode}. 2945 */ 2946 static public void getMyMemoryState(RunningAppProcessInfo outState) { 2947 try { 2948 ActivityManagerNative.getDefault().getMyMemoryState(outState); 2949 } catch (RemoteException e) { 2950 } 2951 } 2952 2953 /** 2954 * Return information about the memory usage of one or more processes. 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 * @param pids The pids of the processes whose memory usage is to be 2960 * retrieved. 2961 * @return Returns an array of memory information, one for each 2962 * requested pid. 2963 */ 2964 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 2965 try { 2966 return ActivityManagerNative.getDefault().getProcessMemoryInfo(pids); 2967 } catch (RemoteException e) { 2968 return null; 2969 } 2970 } 2971 2972 /** 2973 * @deprecated This is now just a wrapper for 2974 * {@link #killBackgroundProcesses(String)}; the previous behavior here 2975 * is no longer available to applications because it allows them to 2976 * break other applications by removing their alarms, stopping their 2977 * services, etc. 2978 */ 2979 @Deprecated 2980 public void restartPackage(String packageName) { 2981 killBackgroundProcesses(packageName); 2982 } 2983 2984 /** 2985 * Have the system immediately kill all background processes associated 2986 * with the given package. This is the same as the kernel killing those 2987 * processes to reclaim memory; the system will take care of restarting 2988 * these processes in the future as needed. 2989 * 2990 * <p>You must hold the permission 2991 * {@link android.Manifest.permission#KILL_BACKGROUND_PROCESSES} to be able to 2992 * call this method. 2993 * 2994 * @param packageName The name of the package whose processes are to 2995 * be killed. 2996 */ 2997 public void killBackgroundProcesses(String packageName) { 2998 try { 2999 ActivityManagerNative.getDefault().killBackgroundProcesses(packageName, 3000 UserHandle.myUserId()); 3001 } catch (RemoteException e) { 3002 } 3003 } 3004 3005 /** 3006 * Kills the specified UID. 3007 * @param uid The UID to kill. 3008 * @param reason The reason for the kill. 3009 * 3010 * @hide 3011 */ 3012 @RequiresPermission(Manifest.permission.KILL_UID) 3013 public void killUid(int uid, String reason) { 3014 try { 3015 ActivityManagerNative.getDefault().killUid(UserHandle.getAppId(uid), 3016 UserHandle.getUserId(uid), reason); 3017 } catch (RemoteException e) { 3018 Log.e(TAG, "Couldn't kill uid:" + uid, e); 3019 } 3020 } 3021 3022 /** 3023 * Have the system perform a force stop of everything associated with 3024 * the given application package. All processes that share its uid 3025 * will be killed, all services it has running stopped, all activities 3026 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3027 * broadcast will be sent, so that any of its registered alarms can 3028 * be stopped, notifications removed, etc. 3029 * 3030 * <p>You must hold the permission 3031 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3032 * call this method. 3033 * 3034 * @param packageName The name of the package to be stopped. 3035 * @param userId The user for which the running package is to be stopped. 3036 * 3037 * @hide This is not available to third party applications due to 3038 * it allowing them to break other applications by stopping their 3039 * services, removing their alarms, etc. 3040 */ 3041 public void forceStopPackageAsUser(String packageName, int userId) { 3042 try { 3043 ActivityManagerNative.getDefault().forceStopPackage(packageName, userId); 3044 } catch (RemoteException e) { 3045 } 3046 } 3047 3048 /** 3049 * @see #forceStopPackageAsUser(String, int) 3050 * @hide 3051 */ 3052 public void forceStopPackage(String packageName) { 3053 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3054 } 3055 3056 /** 3057 * Get the device configuration attributes. 3058 */ 3059 public ConfigurationInfo getDeviceConfigurationInfo() { 3060 try { 3061 return ActivityManagerNative.getDefault().getDeviceConfigurationInfo(); 3062 } catch (RemoteException e) { 3063 } 3064 return null; 3065 } 3066 3067 /** 3068 * Get the preferred density of icons for the launcher. This is used when 3069 * custom drawables are created (e.g., for shortcuts). 3070 * 3071 * @return density in terms of DPI 3072 */ 3073 public int getLauncherLargeIconDensity() { 3074 final Resources res = mContext.getResources(); 3075 final int density = res.getDisplayMetrics().densityDpi; 3076 final int sw = res.getConfiguration().smallestScreenWidthDp; 3077 3078 if (sw < 600) { 3079 // Smaller than approx 7" tablets, use the regular icon size. 3080 return density; 3081 } 3082 3083 switch (density) { 3084 case DisplayMetrics.DENSITY_LOW: 3085 return DisplayMetrics.DENSITY_MEDIUM; 3086 case DisplayMetrics.DENSITY_MEDIUM: 3087 return DisplayMetrics.DENSITY_HIGH; 3088 case DisplayMetrics.DENSITY_TV: 3089 return DisplayMetrics.DENSITY_XHIGH; 3090 case DisplayMetrics.DENSITY_HIGH: 3091 return DisplayMetrics.DENSITY_XHIGH; 3092 case DisplayMetrics.DENSITY_XHIGH: 3093 return DisplayMetrics.DENSITY_XXHIGH; 3094 case DisplayMetrics.DENSITY_XXHIGH: 3095 return DisplayMetrics.DENSITY_XHIGH * 2; 3096 default: 3097 // The density is some abnormal value. Return some other 3098 // abnormal value that is a reasonable scaling of it. 3099 return (int)((density*1.5f)+.5f); 3100 } 3101 } 3102 3103 /** 3104 * Get the preferred launcher icon size. This is used when custom drawables 3105 * are created (e.g., for shortcuts). 3106 * 3107 * @return dimensions of square icons in terms of pixels 3108 */ 3109 public int getLauncherLargeIconSize() { 3110 return getLauncherLargeIconSizeInner(mContext); 3111 } 3112 3113 static int getLauncherLargeIconSizeInner(Context context) { 3114 final Resources res = context.getResources(); 3115 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3116 final int sw = res.getConfiguration().smallestScreenWidthDp; 3117 3118 if (sw < 600) { 3119 // Smaller than approx 7" tablets, use the regular icon size. 3120 return size; 3121 } 3122 3123 final int density = res.getDisplayMetrics().densityDpi; 3124 3125 switch (density) { 3126 case DisplayMetrics.DENSITY_LOW: 3127 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3128 case DisplayMetrics.DENSITY_MEDIUM: 3129 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3130 case DisplayMetrics.DENSITY_TV: 3131 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3132 case DisplayMetrics.DENSITY_HIGH: 3133 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3134 case DisplayMetrics.DENSITY_XHIGH: 3135 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3136 case DisplayMetrics.DENSITY_XXHIGH: 3137 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3138 default: 3139 // The density is some abnormal value. Return some other 3140 // abnormal value that is a reasonable scaling of it. 3141 return (int)((size*1.5f) + .5f); 3142 } 3143 } 3144 3145 /** 3146 * Returns "true" if the user interface is currently being messed with 3147 * by a monkey. 3148 */ 3149 public static boolean isUserAMonkey() { 3150 try { 3151 return ActivityManagerNative.getDefault().isUserAMonkey(); 3152 } catch (RemoteException e) { 3153 } 3154 return false; 3155 } 3156 3157 /** 3158 * Returns "true" if device is running in a test harness. 3159 */ 3160 public static boolean isRunningInTestHarness() { 3161 return SystemProperties.getBoolean("ro.test_harness", false); 3162 } 3163 3164 /** 3165 * Returns the launch count of each installed package. 3166 * 3167 * @hide 3168 */ 3169 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3170 try { 3171 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3172 ServiceManager.getService("usagestats")); 3173 if (usageStatsService == null) { 3174 return new HashMap<String, Integer>(); 3175 } 3176 3177 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3178 ActivityThread.currentPackageName()); 3179 if (allPkgUsageStats == null) { 3180 return new HashMap<String, Integer>(); 3181 } 3182 3183 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3184 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3185 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3186 } 3187 3188 return launchCounts; 3189 } catch (RemoteException e) { 3190 Log.w(TAG, "Could not query launch counts", e); 3191 return new HashMap<String, Integer>(); 3192 } 3193 }*/ 3194 3195 /** @hide */ 3196 public static int checkComponentPermission(String permission, int uid, 3197 int owningUid, boolean exported) { 3198 // Root, system server get to do everything. 3199 final int appId = UserHandle.getAppId(uid); 3200 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3201 return PackageManager.PERMISSION_GRANTED; 3202 } 3203 // Isolated processes don't get any permissions. 3204 if (UserHandle.isIsolated(uid)) { 3205 return PackageManager.PERMISSION_DENIED; 3206 } 3207 // If there is a uid that owns whatever is being accessed, it has 3208 // blanket access to it regardless of the permissions it requires. 3209 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3210 return PackageManager.PERMISSION_GRANTED; 3211 } 3212 // If the target is not exported, then nobody else can get to it. 3213 if (!exported) { 3214 /* 3215 RuntimeException here = new RuntimeException("here"); 3216 here.fillInStackTrace(); 3217 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3218 here); 3219 */ 3220 return PackageManager.PERMISSION_DENIED; 3221 } 3222 if (permission == null) { 3223 return PackageManager.PERMISSION_GRANTED; 3224 } 3225 try { 3226 return AppGlobals.getPackageManager() 3227 .checkUidPermission(permission, uid); 3228 } catch (RemoteException e) { 3229 // Should never happen, but if it does... deny! 3230 Slog.e(TAG, "PackageManager is dead?!?", e); 3231 } 3232 return PackageManager.PERMISSION_DENIED; 3233 } 3234 3235 /** @hide */ 3236 public static int checkUidPermission(String permission, int uid) { 3237 try { 3238 return AppGlobals.getPackageManager() 3239 .checkUidPermission(permission, uid); 3240 } catch (RemoteException e) { 3241 // Should never happen, but if it does... deny! 3242 Slog.e(TAG, "PackageManager is dead?!?", e); 3243 } 3244 return PackageManager.PERMISSION_DENIED; 3245 } 3246 3247 /** 3248 * @hide 3249 * Helper for dealing with incoming user arguments to system service calls. 3250 * Takes care of checking permissions and converting USER_CURRENT to the 3251 * actual current user. 3252 * 3253 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3254 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3255 * @param userId The user id argument supplied by the caller -- this is the user 3256 * they want to run as. 3257 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3258 * to get a USER_ALL returned and deal with it correctly. If false, 3259 * an exception will be thrown if USER_ALL is supplied. 3260 * @param requireFull If true, the caller must hold 3261 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3262 * different user than their current process; otherwise they must hold 3263 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3264 * @param name Optional textual name of the incoming call; only for generating error messages. 3265 * @param callerPackage Optional package name of caller; only for error messages. 3266 * 3267 * @return Returns the user ID that the call should run as. Will always be a concrete 3268 * user number, unless <var>allowAll</var> is true in which case it could also be 3269 * USER_ALL. 3270 */ 3271 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3272 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3273 if (UserHandle.getUserId(callingUid) == userId) { 3274 return userId; 3275 } 3276 try { 3277 return ActivityManagerNative.getDefault().handleIncomingUser(callingPid, 3278 callingUid, userId, allowAll, requireFull, name, callerPackage); 3279 } catch (RemoteException e) { 3280 throw new SecurityException("Failed calling activity manager", e); 3281 } 3282 } 3283 3284 /** 3285 * Gets the userId of the current foreground user. Requires system permissions. 3286 * @hide 3287 */ 3288 @SystemApi 3289 public static int getCurrentUser() { 3290 UserInfo ui; 3291 try { 3292 ui = ActivityManagerNative.getDefault().getCurrentUser(); 3293 return ui != null ? ui.id : 0; 3294 } catch (RemoteException e) { 3295 return 0; 3296 } 3297 } 3298 3299 /** 3300 * @param userid the user's id. Zero indicates the default user. 3301 * @hide 3302 */ 3303 public boolean switchUser(int userid) { 3304 try { 3305 return ActivityManagerNative.getDefault().switchUser(userid); 3306 } catch (RemoteException e) { 3307 return false; 3308 } 3309 } 3310 3311 /** {@hide} */ 3312 public static final int FLAG_OR_STOPPED = 1 << 0; 3313 /** {@hide} */ 3314 public static final int FLAG_AND_LOCKED = 1 << 1; 3315 /** {@hide} */ 3316 public static final int FLAG_AND_UNLOCKED = 1 << 2; 3317 3318 /** 3319 * Return whether the given user is actively running. This means that 3320 * the user is in the "started" state, not "stopped" -- it is currently 3321 * allowed to run code through scheduled alarms, receiving broadcasts, 3322 * etc. A started user may be either the current foreground user or a 3323 * background user; the result here does not distinguish between the two. 3324 * @param userid the user's id. Zero indicates the default user. 3325 * @hide 3326 */ 3327 public boolean isUserRunning(int userId) { 3328 try { 3329 return ActivityManagerNative.getDefault().isUserRunning(userId, 0); 3330 } catch (RemoteException e) { 3331 return false; 3332 } 3333 } 3334 3335 /** {@hide} */ 3336 public boolean isUserRunningAndLocked(int userId) { 3337 try { 3338 return ActivityManagerNative.getDefault().isUserRunning(userId, 3339 ActivityManager.FLAG_AND_LOCKED); 3340 } catch (RemoteException e) { 3341 return false; 3342 } 3343 } 3344 3345 /** {@hide} */ 3346 public boolean isUserRunningAndUnlocked(int userId) { 3347 try { 3348 return ActivityManagerNative.getDefault().isUserRunning(userId, 3349 ActivityManager.FLAG_AND_UNLOCKED); 3350 } catch (RemoteException e) { 3351 return false; 3352 } 3353 } 3354 3355 /** 3356 * Perform a system dump of various state associated with the given application 3357 * package name. This call blocks while the dump is being performed, so should 3358 * not be done on a UI thread. The data will be written to the given file 3359 * descriptor as text. An application must hold the 3360 * {@link android.Manifest.permission#DUMP} permission to make this call. 3361 * @param fd The file descriptor that the dump should be written to. The file 3362 * descriptor is <em>not</em> closed by this function; the caller continues to 3363 * own it. 3364 * @param packageName The name of the package that is to be dumped. 3365 */ 3366 public void dumpPackageState(FileDescriptor fd, String packageName) { 3367 dumpPackageStateStatic(fd, packageName); 3368 } 3369 3370 /** 3371 * @hide 3372 */ 3373 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 3374 FileOutputStream fout = new FileOutputStream(fd); 3375 PrintWriter pw = new FastPrintWriter(fout); 3376 dumpService(pw, fd, "package", new String[] { packageName }); 3377 pw.println(); 3378 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 3379 "-a", "package", packageName }); 3380 pw.println(); 3381 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 3382 pw.println(); 3383 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 3384 pw.println(); 3385 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 3386 pw.println(); 3387 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 3388 pw.flush(); 3389 } 3390 3391 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 3392 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 3393 IBinder service = ServiceManager.checkService(name); 3394 if (service == null) { 3395 pw.println(" (Service not found)"); 3396 return; 3397 } 3398 TransferPipe tp = null; 3399 try { 3400 pw.flush(); 3401 tp = new TransferPipe(); 3402 tp.setBufferPrefix(" "); 3403 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 3404 tp.go(fd, 10000); 3405 } catch (Throwable e) { 3406 if (tp != null) { 3407 tp.kill(); 3408 } 3409 pw.println("Failure dumping service:"); 3410 e.printStackTrace(pw); 3411 } 3412 } 3413 3414 /** 3415 * Request that the system start watching for the calling process to exceed a pss 3416 * size as given here. Once called, the system will look for any occasions where it 3417 * sees the associated process with a larger pss size and, when this happens, automatically 3418 * pull a heap dump from it and allow the user to share the data. Note that this request 3419 * continues running even if the process is killed and restarted. To remove the watch, 3420 * use {@link #clearWatchHeapLimit()}. 3421 * 3422 * <p>This API only work if the calling process has been marked as 3423 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 3424 * (userdebug or eng) build.</p> 3425 * 3426 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 3427 * handle heap limit reports themselves.</p> 3428 * 3429 * @param pssSize The size in bytes to set the limit at. 3430 */ 3431 public void setWatchHeapLimit(long pssSize) { 3432 try { 3433 ActivityManagerNative.getDefault().setDumpHeapDebugLimit(null, 0, pssSize, 3434 mContext.getPackageName()); 3435 } catch (RemoteException e) { 3436 } 3437 } 3438 3439 /** 3440 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 3441 * If your package has an activity handling this action, it will be launched with the 3442 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 3443 * match the activty must support this action and a MIME type of "*/*". 3444 */ 3445 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 3446 3447 /** 3448 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 3449 */ 3450 public void clearWatchHeapLimit() { 3451 try { 3452 ActivityManagerNative.getDefault().setDumpHeapDebugLimit(null, 0, 0, null); 3453 } catch (RemoteException e) { 3454 } 3455 } 3456 3457 /** 3458 * @hide 3459 */ 3460 public void startLockTaskMode(int taskId) { 3461 try { 3462 ActivityManagerNative.getDefault().startLockTaskMode(taskId); 3463 } catch (RemoteException e) { 3464 } 3465 } 3466 3467 /** 3468 * @hide 3469 */ 3470 public void stopLockTaskMode() { 3471 try { 3472 ActivityManagerNative.getDefault().stopLockTaskMode(); 3473 } catch (RemoteException e) { 3474 } 3475 } 3476 3477 /** 3478 * Return whether currently in lock task mode. When in this mode 3479 * no new tasks can be created or switched to. 3480 * 3481 * @see Activity#startLockTask() 3482 * 3483 * @deprecated Use {@link #getLockTaskModeState} instead. 3484 */ 3485 public boolean isInLockTaskMode() { 3486 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 3487 } 3488 3489 /** 3490 * Return the current state of task locking. The three possible outcomes 3491 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 3492 * and {@link #LOCK_TASK_MODE_PINNED}. 3493 * 3494 * @see Activity#startLockTask() 3495 */ 3496 public int getLockTaskModeState() { 3497 try { 3498 return ActivityManagerNative.getDefault().getLockTaskModeState(); 3499 } catch (RemoteException e) { 3500 return ActivityManager.LOCK_TASK_MODE_NONE; 3501 } 3502 } 3503 3504 /** 3505 * The AppTask allows you to manage your own application's tasks. 3506 * See {@link android.app.ActivityManager#getAppTasks()} 3507 */ 3508 public static class AppTask { 3509 private IAppTask mAppTaskImpl; 3510 3511 /** @hide */ 3512 public AppTask(IAppTask task) { 3513 mAppTaskImpl = task; 3514 } 3515 3516 /** 3517 * Finishes all activities in this task and removes it from the recent tasks list. 3518 */ 3519 public void finishAndRemoveTask() { 3520 try { 3521 mAppTaskImpl.finishAndRemoveTask(); 3522 } catch (RemoteException e) { 3523 Slog.e(TAG, "Invalid AppTask", e); 3524 } 3525 } 3526 3527 /** 3528 * Get the RecentTaskInfo associated with this task. 3529 * 3530 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 3531 */ 3532 public RecentTaskInfo getTaskInfo() { 3533 try { 3534 return mAppTaskImpl.getTaskInfo(); 3535 } catch (RemoteException e) { 3536 Slog.e(TAG, "Invalid AppTask", e); 3537 return null; 3538 } 3539 } 3540 3541 /** 3542 * Bring this task to the foreground. If it contains activities, they will be 3543 * brought to the foreground with it and their instances re-created if needed. 3544 * If it doesn't contain activities, the root activity of the task will be 3545 * re-launched. 3546 */ 3547 public void moveToFront() { 3548 try { 3549 mAppTaskImpl.moveToFront(); 3550 } catch (RemoteException e) { 3551 Slog.e(TAG, "Invalid AppTask", e); 3552 } 3553 } 3554 3555 /** 3556 * Start an activity in this task. Brings the task to the foreground. If this task 3557 * is not currently active (that is, its id < 0), then a new activity for the given 3558 * Intent will be launched as the root of the task and the task brought to the 3559 * foreground. Otherwise, if this task is currently active and the Intent does not specify 3560 * an activity to launch in a new task, then a new activity for the given Intent will 3561 * be launched on top of the task and the task brought to the foreground. If this 3562 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 3563 * or would otherwise be launched in to a new task, then the activity not launched but 3564 * this task be brought to the foreground and a new intent delivered to the top 3565 * activity if appropriate. 3566 * 3567 * <p>In other words, you generally want to use an Intent here that does not specify 3568 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 3569 * and let the system do the right thing.</p> 3570 * 3571 * @param intent The Intent describing the new activity to be launched on the task. 3572 * @param options Optional launch options. 3573 * 3574 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 3575 */ 3576 public void startActivity(Context context, Intent intent, Bundle options) { 3577 ActivityThread thread = ActivityThread.currentActivityThread(); 3578 thread.getInstrumentation().execStartActivityFromAppTask(context, 3579 thread.getApplicationThread(), mAppTaskImpl, intent, options); 3580 } 3581 3582 /** 3583 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 3584 * Intent of this AppTask. 3585 * 3586 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 3587 * be set; otherwise, it will be cleared. 3588 */ 3589 public void setExcludeFromRecents(boolean exclude) { 3590 try { 3591 mAppTaskImpl.setExcludeFromRecents(exclude); 3592 } catch (RemoteException e) { 3593 Slog.e(TAG, "Invalid AppTask", e); 3594 } 3595 } 3596 } 3597} 3598