ActivityManager.java revision 71a02b2f555d1286f51de4beef1dc6a019c6f602
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 static android.app.WindowConfiguration.WINDOWING_MODE_DOCKED; 20import static android.app.WindowConfiguration.WINDOWING_MODE_FREEFORM; 21import static android.app.WindowConfiguration.WINDOWING_MODE_FULLSCREEN; 22import static android.app.WindowConfiguration.WINDOWING_MODE_PINNED; 23import static android.app.WindowConfiguration.WINDOWING_MODE_UNDEFINED; 24 25import android.Manifest; 26import android.annotation.IntDef; 27import android.annotation.NonNull; 28import android.annotation.Nullable; 29import android.annotation.RequiresPermission; 30import android.annotation.SystemApi; 31import android.annotation.SystemService; 32import android.annotation.TestApi; 33import android.content.ComponentName; 34import android.content.Context; 35import android.content.Intent; 36import android.content.UriPermission; 37import android.content.pm.ActivityInfo; 38import android.content.pm.ApplicationInfo; 39import android.content.pm.ConfigurationInfo; 40import android.content.pm.IPackageDataObserver; 41import android.content.pm.PackageManager; 42import android.content.pm.ParceledListSlice; 43import android.content.pm.UserInfo; 44import android.content.res.Configuration; 45import android.content.res.Resources; 46import android.graphics.Bitmap; 47import android.graphics.Canvas; 48import android.graphics.Color; 49import android.graphics.GraphicBuffer; 50import android.graphics.Matrix; 51import android.graphics.Point; 52import android.graphics.Rect; 53import android.os.BatteryStats; 54import android.os.Build; 55import android.os.Build.VERSION_CODES; 56import android.os.Bundle; 57import android.os.Debug; 58import android.os.Handler; 59import android.os.IBinder; 60import android.os.Parcel; 61import android.os.ParcelFileDescriptor; 62import android.os.Parcelable; 63import android.os.Process; 64import android.os.RemoteException; 65import android.os.ServiceManager; 66import android.os.SystemProperties; 67import android.os.UserHandle; 68import android.text.TextUtils; 69import android.util.ArrayMap; 70import android.util.DisplayMetrics; 71import android.util.Singleton; 72import android.util.Size; 73 74import com.android.internal.app.procstats.ProcessStats; 75import com.android.internal.os.RoSystemProperties; 76import com.android.internal.os.TransferPipe; 77import com.android.internal.util.FastPrintWriter; 78import com.android.server.LocalServices; 79 80import org.xmlpull.v1.XmlSerializer; 81 82import java.io.FileDescriptor; 83import java.io.FileOutputStream; 84import java.io.IOException; 85import java.io.PrintWriter; 86import java.lang.annotation.Retention; 87import java.lang.annotation.RetentionPolicy; 88import java.util.ArrayList; 89import java.util.List; 90 91/** 92 * <p> 93 * This class gives information about, and interacts 94 * with, activities, services, and the containing 95 * process. 96 * </p> 97 * 98 * <p> 99 * A number of the methods in this class are for 100 * debugging or informational purposes and they should 101 * not be used to affect any runtime behavior of 102 * your app. These methods are called out as such in 103 * the method level documentation. 104 * </p> 105 * 106 *<p> 107 * Most application developers should not have the need to 108 * use this class, most of whose methods are for specialized 109 * use cases. However, a few methods are more broadly applicable. 110 * For instance, {@link android.app.ActivityManager#isLowRamDevice() isLowRamDevice()} 111 * enables your app to detect whether it is running on a low-memory device, 112 * and behave accordingly. 113 * {@link android.app.ActivityManager#clearApplicationUserData() clearApplicationUserData()} 114 * is for apps with reset-data functionality. 115 * </p> 116 * 117 * <p> 118 * In some special use cases, where an app interacts with 119 * its Task stack, the app may use the 120 * {@link android.app.ActivityManager.AppTask} and 121 * {@link android.app.ActivityManager.RecentTaskInfo} inner 122 * classes. However, in general, the methods in this class should 123 * be used for testing and debugging purposes only. 124 * </p> 125 */ 126@SystemService(Context.ACTIVITY_SERVICE) 127public class ActivityManager { 128 private static String TAG = "ActivityManager"; 129 130 private static int gMaxRecentTasks = -1; 131 132 private final Context mContext; 133 134 private static volatile boolean sSystemReady = false; 135 136 137 private static final int FIRST_START_FATAL_ERROR_CODE = -100; 138 private static final int LAST_START_FATAL_ERROR_CODE = -1; 139 private static final int FIRST_START_SUCCESS_CODE = 0; 140 private static final int LAST_START_SUCCESS_CODE = 99; 141 private static final int FIRST_START_NON_FATAL_ERROR_CODE = 100; 142 private static final int LAST_START_NON_FATAL_ERROR_CODE = 199; 143 144 /** 145 * System property to enable task snapshots. 146 * @hide 147 */ 148 public final static boolean ENABLE_TASK_SNAPSHOTS; 149 150 static { 151 ENABLE_TASK_SNAPSHOTS = SystemProperties.getBoolean("persist.enable_task_snapshots", true); 152 } 153 154 static final class UidObserver extends IUidObserver.Stub { 155 final OnUidImportanceListener mListener; 156 final Context mContext; 157 158 UidObserver(OnUidImportanceListener listener, Context clientContext) { 159 mListener = listener; 160 mContext = clientContext; 161 } 162 163 @Override 164 public void onUidStateChanged(int uid, int procState, long procStateSeq) { 165 mListener.onUidImportance(uid, RunningAppProcessInfo.procStateToImportanceForClient( 166 procState, mContext)); 167 } 168 169 @Override 170 public void onUidGone(int uid, boolean disabled) { 171 mListener.onUidImportance(uid, RunningAppProcessInfo.IMPORTANCE_GONE); 172 } 173 174 @Override 175 public void onUidActive(int uid) { 176 } 177 178 @Override 179 public void onUidIdle(int uid, boolean disabled) { 180 } 181 182 @Override public void onUidCachedChanged(int uid, boolean cached) { 183 } 184 } 185 186 final ArrayMap<OnUidImportanceListener, UidObserver> mImportanceListeners = new ArrayMap<>(); 187 188 /** 189 * Defines acceptable types of bugreports. 190 * @hide 191 */ 192 @Retention(RetentionPolicy.SOURCE) 193 @IntDef({ 194 BUGREPORT_OPTION_FULL, 195 BUGREPORT_OPTION_INTERACTIVE, 196 BUGREPORT_OPTION_REMOTE, 197 BUGREPORT_OPTION_WEAR, 198 BUGREPORT_OPTION_TELEPHONY 199 }) 200 public @interface BugreportMode {} 201 /** 202 * Takes a bugreport without user interference (and hence causing less 203 * interference to the system), but includes all sections. 204 * @hide 205 */ 206 public static final int BUGREPORT_OPTION_FULL = 0; 207 /** 208 * Allows user to monitor progress and enter additional data; might not include all 209 * sections. 210 * @hide 211 */ 212 public static final int BUGREPORT_OPTION_INTERACTIVE = 1; 213 /** 214 * Takes a bugreport requested remotely by administrator of the Device Owner app, 215 * not the device's user. 216 * @hide 217 */ 218 public static final int BUGREPORT_OPTION_REMOTE = 2; 219 /** 220 * Takes a bugreport on a wearable device. 221 * @hide 222 */ 223 public static final int BUGREPORT_OPTION_WEAR = 3; 224 225 /** 226 * Takes a lightweight version of bugreport that only includes a few, urgent sections 227 * used to report telephony bugs. 228 * @hide 229 */ 230 public static final int BUGREPORT_OPTION_TELEPHONY = 4; 231 232 /** 233 * <a href="{@docRoot}guide/topics/manifest/meta-data-element.html">{@code 234 * <meta-data>}</a> name for a 'home' Activity that declares a package that is to be 235 * uninstalled in lieu of the declaring one. The package named here must be 236 * signed with the same certificate as the one declaring the {@code <meta-data>}. 237 */ 238 public static final String META_HOME_ALTERNATE = "android.app.home.alternate"; 239 240 // NOTE: Before adding a new start result, please reference the defined ranges to ensure the 241 // result is properly categorized. 242 243 /** 244 * Result for IActivityManager.startVoiceActivity: active session is currently hidden. 245 * @hide 246 */ 247 public static final int START_VOICE_HIDDEN_SESSION = FIRST_START_FATAL_ERROR_CODE; 248 249 /** 250 * Result for IActivityManager.startVoiceActivity: active session does not match 251 * the requesting token. 252 * @hide 253 */ 254 public static final int START_VOICE_NOT_ACTIVE_SESSION = FIRST_START_FATAL_ERROR_CODE + 1; 255 256 /** 257 * Result for IActivityManager.startActivity: trying to start a background user 258 * activity that shouldn't be displayed for all users. 259 * @hide 260 */ 261 public static final int START_NOT_CURRENT_USER_ACTIVITY = FIRST_START_FATAL_ERROR_CODE + 2; 262 263 /** 264 * Result for IActivityManager.startActivity: trying to start an activity under voice 265 * control when that activity does not support the VOICE category. 266 * @hide 267 */ 268 public static final int START_NOT_VOICE_COMPATIBLE = FIRST_START_FATAL_ERROR_CODE + 3; 269 270 /** 271 * Result for IActivityManager.startActivity: an error where the 272 * start had to be canceled. 273 * @hide 274 */ 275 public static final int START_CANCELED = FIRST_START_FATAL_ERROR_CODE + 4; 276 277 /** 278 * Result for IActivityManager.startActivity: an error where the 279 * thing being started is not an activity. 280 * @hide 281 */ 282 public static final int START_NOT_ACTIVITY = FIRST_START_FATAL_ERROR_CODE + 5; 283 284 /** 285 * Result for IActivityManager.startActivity: an error where the 286 * caller does not have permission to start the activity. 287 * @hide 288 */ 289 public static final int START_PERMISSION_DENIED = FIRST_START_FATAL_ERROR_CODE + 6; 290 291 /** 292 * Result for IActivityManager.startActivity: an error where the 293 * caller has requested both to forward a result and to receive 294 * a result. 295 * @hide 296 */ 297 public static final int START_FORWARD_AND_REQUEST_CONFLICT = FIRST_START_FATAL_ERROR_CODE + 7; 298 299 /** 300 * Result for IActivityManager.startActivity: an error where the 301 * requested class is not found. 302 * @hide 303 */ 304 public static final int START_CLASS_NOT_FOUND = FIRST_START_FATAL_ERROR_CODE + 8; 305 306 /** 307 * Result for IActivityManager.startActivity: an error where the 308 * given Intent could not be resolved to an activity. 309 * @hide 310 */ 311 public static final int START_INTENT_NOT_RESOLVED = FIRST_START_FATAL_ERROR_CODE + 9; 312 313 /** 314 * Result for IActivityManager.startAssistantActivity: active session is currently hidden. 315 * @hide 316 */ 317 public static final int START_ASSISTANT_HIDDEN_SESSION = FIRST_START_FATAL_ERROR_CODE + 10; 318 319 /** 320 * Result for IActivityManager.startAssistantActivity: active session does not match 321 * the requesting token. 322 * @hide 323 */ 324 public static final int START_ASSISTANT_NOT_ACTIVE_SESSION = FIRST_START_FATAL_ERROR_CODE + 11; 325 326 /** 327 * Result for IActivityManaqer.startActivity: the activity was started 328 * successfully as normal. 329 * @hide 330 */ 331 public static final int START_SUCCESS = FIRST_START_SUCCESS_CODE; 332 333 /** 334 * Result for IActivityManaqer.startActivity: the caller asked that the Intent not 335 * be executed if it is the recipient, and that is indeed the case. 336 * @hide 337 */ 338 public static final int START_RETURN_INTENT_TO_CALLER = FIRST_START_SUCCESS_CODE + 1; 339 340 /** 341 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 342 * a task was simply brought to the foreground. 343 * @hide 344 */ 345 public static final int START_TASK_TO_FRONT = FIRST_START_SUCCESS_CODE + 2; 346 347 /** 348 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 349 * the given Intent was given to the existing top activity. 350 * @hide 351 */ 352 public static final int START_DELIVERED_TO_TOP = FIRST_START_SUCCESS_CODE + 3; 353 354 /** 355 * Result for IActivityManaqer.startActivity: request was canceled because 356 * app switches are temporarily canceled to ensure the user's last request 357 * (such as pressing home) is performed. 358 * @hide 359 */ 360 public static final int START_SWITCHES_CANCELED = FIRST_START_NON_FATAL_ERROR_CODE; 361 362 /** 363 * Result for IActivityManaqer.startActivity: a new activity was attempted to be started 364 * while in Lock Task Mode. 365 * @hide 366 */ 367 public static final int START_RETURN_LOCK_TASK_MODE_VIOLATION = 368 FIRST_START_NON_FATAL_ERROR_CODE + 1; 369 370 /** 371 * Result for IActivityManaqer.startActivity: a new activity start was aborted. Never returned 372 * externally. 373 * @hide 374 */ 375 public static final int START_ABORTED = FIRST_START_NON_FATAL_ERROR_CODE + 2; 376 377 /** 378 * Flag for IActivityManaqer.startActivity: do special start mode where 379 * a new activity is launched only if it is needed. 380 * @hide 381 */ 382 public static final int START_FLAG_ONLY_IF_NEEDED = 1<<0; 383 384 /** 385 * Flag for IActivityManaqer.startActivity: launch the app for 386 * debugging. 387 * @hide 388 */ 389 public static final int START_FLAG_DEBUG = 1<<1; 390 391 /** 392 * Flag for IActivityManaqer.startActivity: launch the app for 393 * allocation tracking. 394 * @hide 395 */ 396 public static final int START_FLAG_TRACK_ALLOCATION = 1<<2; 397 398 /** 399 * Flag for IActivityManaqer.startActivity: launch the app with 400 * native debugging support. 401 * @hide 402 */ 403 public static final int START_FLAG_NATIVE_DEBUGGING = 1<<3; 404 405 /** 406 * Result for IActivityManaqer.broadcastIntent: success! 407 * @hide 408 */ 409 public static final int BROADCAST_SUCCESS = 0; 410 411 /** 412 * Result for IActivityManaqer.broadcastIntent: attempt to broadcast 413 * a sticky intent without appropriate permission. 414 * @hide 415 */ 416 public static final int BROADCAST_STICKY_CANT_HAVE_PERMISSION = -1; 417 418 /** 419 * Result for IActivityManager.broadcastIntent: trying to send a broadcast 420 * to a stopped user. Fail. 421 * @hide 422 */ 423 public static final int BROADCAST_FAILED_USER_STOPPED = -2; 424 425 /** 426 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 427 * for a sendBroadcast operation. 428 * @hide 429 */ 430 public static final int INTENT_SENDER_BROADCAST = 1; 431 432 /** 433 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 434 * for a startActivity operation. 435 * @hide 436 */ 437 public static final int INTENT_SENDER_ACTIVITY = 2; 438 439 /** 440 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 441 * for an activity result operation. 442 * @hide 443 */ 444 public static final int INTENT_SENDER_ACTIVITY_RESULT = 3; 445 446 /** 447 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 448 * for a startService operation. 449 * @hide 450 */ 451 public static final int INTENT_SENDER_SERVICE = 4; 452 453 /** 454 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 455 * for a startForegroundService operation. 456 * @hide 457 */ 458 public static final int INTENT_SENDER_FOREGROUND_SERVICE = 5; 459 460 /** @hide User operation call: success! */ 461 public static final int USER_OP_SUCCESS = 0; 462 463 /** @hide User operation call: given user id is not known. */ 464 public static final int USER_OP_UNKNOWN_USER = -1; 465 466 /** @hide User operation call: given user id is the current user, can't be stopped. */ 467 public static final int USER_OP_IS_CURRENT = -2; 468 469 /** @hide User operation call: system user can't be stopped. */ 470 public static final int USER_OP_ERROR_IS_SYSTEM = -3; 471 472 /** @hide User operation call: one of related users cannot be stopped. */ 473 public static final int USER_OP_ERROR_RELATED_USERS_CANNOT_STOP = -4; 474 475 /** @hide Not a real process state. */ 476 public static final int PROCESS_STATE_UNKNOWN = -1; 477 478 /** @hide Process is a persistent system process. */ 479 public static final int PROCESS_STATE_PERSISTENT = 0; 480 481 /** @hide Process is a persistent system process and is doing UI. */ 482 public static final int PROCESS_STATE_PERSISTENT_UI = 1; 483 484 /** @hide Process is hosting the current top activities. Note that this covers 485 * all activities that are visible to the user. */ 486 public static final int PROCESS_STATE_TOP = 2; 487 488 /** @hide Process is hosting a foreground service due to a system binding. */ 489 public static final int PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 3; 490 491 /** @hide Process is hosting a foreground service. */ 492 public static final int PROCESS_STATE_FOREGROUND_SERVICE = 4; 493 494 /** @hide Same as {@link #PROCESS_STATE_TOP} but while device is sleeping. */ 495 public static final int PROCESS_STATE_TOP_SLEEPING = 5; 496 497 /** @hide Process is important to the user, and something they are aware of. */ 498 public static final int PROCESS_STATE_IMPORTANT_FOREGROUND = 6; 499 500 /** @hide Process is important to the user, but not something they are aware of. */ 501 public static final int PROCESS_STATE_IMPORTANT_BACKGROUND = 7; 502 503 /** @hide Process is in the background transient so we will try to keep running. */ 504 public static final int PROCESS_STATE_TRANSIENT_BACKGROUND = 8; 505 506 /** @hide Process is in the background running a backup/restore operation. */ 507 public static final int PROCESS_STATE_BACKUP = 9; 508 509 /** @hide Process is in the background, but it can't restore its state so we want 510 * to try to avoid killing it. */ 511 public static final int PROCESS_STATE_HEAVY_WEIGHT = 10; 512 513 /** @hide Process is in the background running a service. Unlike oom_adj, this level 514 * is used for both the normal running in background state and the executing 515 * operations state. */ 516 public static final int PROCESS_STATE_SERVICE = 11; 517 518 /** @hide Process is in the background running a receiver. Note that from the 519 * perspective of oom_adj receivers run at a higher foreground level, but for our 520 * prioritization here that is not necessary and putting them below services means 521 * many fewer changes in some process states as they receive broadcasts. */ 522 public static final int PROCESS_STATE_RECEIVER = 12; 523 524 /** @hide Process is in the background but hosts the home activity. */ 525 public static final int PROCESS_STATE_HOME = 13; 526 527 /** @hide Process is in the background but hosts the last shown activity. */ 528 public static final int PROCESS_STATE_LAST_ACTIVITY = 14; 529 530 /** @hide Process is being cached for later use and contains activities. */ 531 public static final int PROCESS_STATE_CACHED_ACTIVITY = 15; 532 533 /** @hide Process is being cached for later use and is a client of another cached 534 * process that contains activities. */ 535 public static final int PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 16; 536 537 /** @hide Process is being cached for later use and is empty. */ 538 public static final int PROCESS_STATE_CACHED_EMPTY = 17; 539 540 /** @hide Process does not exist. */ 541 public static final int PROCESS_STATE_NONEXISTENT = 18; 542 543 /** @hide The lowest process state number */ 544 public static final int MIN_PROCESS_STATE = PROCESS_STATE_PERSISTENT; 545 546 /** @hide The highest process state number */ 547 public static final int MAX_PROCESS_STATE = PROCESS_STATE_NONEXISTENT; 548 549 /** @hide Should this process state be considered a background state? */ 550 public static final boolean isProcStateBackground(int procState) { 551 return procState >= PROCESS_STATE_TRANSIENT_BACKGROUND; 552 } 553 554 /** @hide requestType for assist context: only basic information. */ 555 public static final int ASSIST_CONTEXT_BASIC = 0; 556 557 /** @hide requestType for assist context: generate full AssistStructure. */ 558 public static final int ASSIST_CONTEXT_FULL = 1; 559 560 /** @hide requestType for assist context: generate full AssistStructure for autofill. */ 561 public static final int ASSIST_CONTEXT_AUTOFILL = 2; 562 563 /** @hide Flag for registerUidObserver: report changes in process state. */ 564 public static final int UID_OBSERVER_PROCSTATE = 1<<0; 565 566 /** @hide Flag for registerUidObserver: report uid gone. */ 567 public static final int UID_OBSERVER_GONE = 1<<1; 568 569 /** @hide Flag for registerUidObserver: report uid has become idle. */ 570 public static final int UID_OBSERVER_IDLE = 1<<2; 571 572 /** @hide Flag for registerUidObserver: report uid has become active. */ 573 public static final int UID_OBSERVER_ACTIVE = 1<<3; 574 575 /** @hide Flag for registerUidObserver: report uid cached state has changed. */ 576 public static final int UID_OBSERVER_CACHED = 1<<4; 577 578 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: normal free-to-run operation. */ 579 public static final int APP_START_MODE_NORMAL = 0; 580 581 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later. */ 582 public static final int APP_START_MODE_DELAYED = 1; 583 584 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later, with 585 * rigid errors (throwing exception). */ 586 public static final int APP_START_MODE_DELAYED_RIGID = 2; 587 588 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: disable/cancel pending 589 * launches; this is the mode for ephemeral apps. */ 590 public static final int APP_START_MODE_DISABLED = 3; 591 592 /** 593 * Lock task mode is not active. 594 */ 595 public static final int LOCK_TASK_MODE_NONE = 0; 596 597 /** 598 * Full lock task mode is active. 599 */ 600 public static final int LOCK_TASK_MODE_LOCKED = 1; 601 602 /** 603 * App pinning mode is active. 604 */ 605 public static final int LOCK_TASK_MODE_PINNED = 2; 606 607 Point mAppTaskThumbnailSize; 608 609 /*package*/ ActivityManager(Context context, Handler handler) { 610 mContext = context; 611 } 612 613 /** 614 * Returns whether the launch was successful. 615 * @hide 616 */ 617 public static final boolean isStartResultSuccessful(int result) { 618 return FIRST_START_SUCCESS_CODE <= result && result <= LAST_START_SUCCESS_CODE; 619 } 620 621 /** 622 * Returns whether the launch result was a fatal error. 623 * @hide 624 */ 625 public static final boolean isStartResultFatalError(int result) { 626 return FIRST_START_FATAL_ERROR_CODE <= result && result <= LAST_START_FATAL_ERROR_CODE; 627 } 628 629 /** 630 * Screen compatibility mode: the application most always run in 631 * compatibility mode. 632 * @hide 633 */ 634 public static final int COMPAT_MODE_ALWAYS = -1; 635 636 /** 637 * Screen compatibility mode: the application can never run in 638 * compatibility mode. 639 * @hide 640 */ 641 public static final int COMPAT_MODE_NEVER = -2; 642 643 /** 644 * Screen compatibility mode: unknown. 645 * @hide 646 */ 647 public static final int COMPAT_MODE_UNKNOWN = -3; 648 649 /** 650 * Screen compatibility mode: the application currently has compatibility 651 * mode disabled. 652 * @hide 653 */ 654 public static final int COMPAT_MODE_DISABLED = 0; 655 656 /** 657 * Screen compatibility mode: the application currently has compatibility 658 * mode enabled. 659 * @hide 660 */ 661 public static final int COMPAT_MODE_ENABLED = 1; 662 663 /** 664 * Screen compatibility mode: request to toggle the application's 665 * compatibility mode. 666 * @hide 667 */ 668 public static final int COMPAT_MODE_TOGGLE = 2; 669 670 private static final boolean DEVELOPMENT_FORCE_LOW_RAM = 671 SystemProperties.getBoolean("debug.force_low_ram", false); 672 673 /** @hide */ 674 public static class StackId { 675 /** Invalid stack ID. */ 676 public static final int INVALID_STACK_ID = -1; 677 678 /** First static stack ID. */ 679 public static final int FIRST_STATIC_STACK_ID = 0; 680 681 /** Home activity stack ID. */ 682 public static final int HOME_STACK_ID = FIRST_STATIC_STACK_ID; 683 684 /** ID of stack where fullscreen activities are normally launched into. */ 685 public static final int FULLSCREEN_WORKSPACE_STACK_ID = 1; 686 687 /** ID of stack where freeform/resized activities are normally launched into. */ 688 public static final int FREEFORM_WORKSPACE_STACK_ID = FULLSCREEN_WORKSPACE_STACK_ID + 1; 689 690 /** ID of stack that occupies a dedicated region of the screen. */ 691 public static final int DOCKED_STACK_ID = FREEFORM_WORKSPACE_STACK_ID + 1; 692 693 /** ID of stack that always on top (always visible) when it exist. */ 694 public static final int PINNED_STACK_ID = DOCKED_STACK_ID + 1; 695 696 /** ID of stack that contains the Recents activity. */ 697 public static final int RECENTS_STACK_ID = PINNED_STACK_ID + 1; 698 699 /** ID of stack that contains activities launched by the assistant. */ 700 public static final int ASSISTANT_STACK_ID = RECENTS_STACK_ID + 1; 701 702 /** Last static stack stack ID. */ 703 public static final int LAST_STATIC_STACK_ID = ASSISTANT_STACK_ID; 704 705 /** Start of ID range used by stacks that are created dynamically. */ 706 public static final int FIRST_DYNAMIC_STACK_ID = LAST_STATIC_STACK_ID + 1; 707 708 // TODO: Figure-out a way to remove this. 709 public static boolean isStaticStack(int stackId) { 710 return stackId >= FIRST_STATIC_STACK_ID && stackId <= LAST_STATIC_STACK_ID; 711 } 712 713 // TODO: It seems this mostly means a stack on a secondary display now. Need to see if 714 // there are other meanings. If not why not just use information from the display? 715 public static boolean isDynamicStack(int stackId) { 716 return stackId >= FIRST_DYNAMIC_STACK_ID; 717 } 718 719 /** 720 * Returns true if dynamic stacks are allowed to be visible behind the input stack. 721 */ 722 // TODO: Figure-out a way to remove. 723 public static boolean isDynamicStacksVisibleBehindAllowed(int stackId) { 724 return stackId == PINNED_STACK_ID || stackId == ASSISTANT_STACK_ID; 725 } 726 727 /** 728 * Returns true if we try to maintain focus in the current stack when the top activity 729 * finishes. 730 */ 731 // TODO: Figure-out a way to remove. Probably isn't needed in the new world... 732 public static boolean keepFocusInStackIfPossible(int stackId) { 733 return stackId == FREEFORM_WORKSPACE_STACK_ID 734 || stackId == DOCKED_STACK_ID || stackId == PINNED_STACK_ID; 735 } 736 737 /** 738 * Returns true if Stack size is affected by the docked stack changing size. 739 */ 740 // TODO: Figure-out a way to remove. 741 public static boolean isResizeableByDockedStack(int stackId) { 742 return isStaticStack(stackId) && stackId != DOCKED_STACK_ID 743 && stackId != PINNED_STACK_ID && stackId != ASSISTANT_STACK_ID; 744 } 745 746 /** 747 * Returns true if the size of tasks in the input stack are affected by the docked stack 748 * changing size. 749 */ 750 // TODO: What is the difference between this method and the one above?? 751 public static boolean isTaskResizeableByDockedStack(int stackId) { 752 return isStaticStack(stackId) && stackId != FREEFORM_WORKSPACE_STACK_ID 753 && stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID 754 && stackId != ASSISTANT_STACK_ID; 755 } 756 757 /** 758 * Returns true if the input stack is affected by drag resizing. 759 */ 760 public static boolean isStackAffectedByDragResizing(int stackId) { 761 return isStaticStack(stackId) && stackId != PINNED_STACK_ID 762 && stackId != ASSISTANT_STACK_ID; 763 } 764 765 /** 766 * Returns true if the windows of tasks being moved to the target stack from the source 767 * stack should be replaced, meaning that window manager will keep the old window around 768 * until the new is ready. 769 */ 770 public static boolean replaceWindowsOnTaskMove(int sourceStackId, int targetStackId) { 771 return sourceStackId == FREEFORM_WORKSPACE_STACK_ID 772 || targetStackId == FREEFORM_WORKSPACE_STACK_ID; 773 } 774 775 /** 776 * Return whether a stackId is a stack that be a backdrop to a translucent activity. These 777 * are generally fullscreen stacks. 778 */ 779 public static boolean isBackdropToTranslucentActivity(int stackId) { 780 return stackId == FULLSCREEN_WORKSPACE_STACK_ID 781 || stackId == ASSISTANT_STACK_ID; 782 } 783 784 /** 785 * Returns true if animation specs should be constructed for app transition that moves 786 * the task to the specified stack. 787 */ 788 public static boolean useAnimationSpecForAppTransition(int stackId) { 789 // TODO: INVALID_STACK_ID is also animated because we don't persist stack id's across 790 // reboots. 791 return stackId == FREEFORM_WORKSPACE_STACK_ID 792 || stackId == FULLSCREEN_WORKSPACE_STACK_ID 793 || stackId == ASSISTANT_STACK_ID 794 || stackId == DOCKED_STACK_ID 795 || stackId == INVALID_STACK_ID; 796 } 797 798 /** 799 * Returns true if activities from stasks in the given {@param stackId} are allowed to 800 * enter picture-in-picture. 801 */ 802 public static boolean isAllowedToEnterPictureInPicture(int stackId) { 803 return stackId != HOME_STACK_ID && stackId != ASSISTANT_STACK_ID && 804 stackId != RECENTS_STACK_ID; 805 } 806 807 /** 808 * Returns true if the top task in the task is allowed to return home when finished and 809 * there are other tasks in the stack. 810 */ 811 public static boolean allowTopTaskToReturnHome(int stackId) { 812 return stackId != PINNED_STACK_ID; 813 } 814 815 /** 816 * Returns true if the stack should be resized to match the bounds specified by 817 * {@link ActivityOptions#setLaunchBounds} when launching an activity into the stack. 818 */ 819 public static boolean resizeStackWithLaunchBounds(int stackId) { 820 return stackId == PINNED_STACK_ID; 821 } 822 823 /** 824 * Returns true if a window from the specified stack with {@param stackId} are normally 825 * fullscreen, i. e. they can become the top opaque fullscreen window, meaning that it 826 * controls system bars, lockscreen occluded/dismissing state, screen rotation animation, 827 * etc. 828 */ 829 // TODO: What about the other side of docked stack if we move this to WindowConfiguration? 830 public static boolean normallyFullscreenWindows(int stackId) { 831 return stackId != PINNED_STACK_ID && stackId != FREEFORM_WORKSPACE_STACK_ID 832 && stackId != DOCKED_STACK_ID; 833 } 834 835 /** 836 * Returns true if the input stack id should only be present on a device that supports 837 * multi-window mode. 838 * @see android.app.ActivityManager#supportsMultiWindow 839 */ 840 // TODO: What about the other side of docked stack if we move this to WindowConfiguration? 841 public static boolean isMultiWindowStack(int stackId) { 842 return stackId == PINNED_STACK_ID || stackId == FREEFORM_WORKSPACE_STACK_ID 843 || stackId == DOCKED_STACK_ID; 844 } 845 846 /** 847 * Returns true if the input {@param stackId} is HOME_STACK_ID or RECENTS_STACK_ID 848 */ 849 public static boolean isHomeOrRecentsStack(int stackId) { 850 return stackId == HOME_STACK_ID || stackId == RECENTS_STACK_ID; 851 } 852 853 /** Returns true if the input stack and its content can affect the device orientation. */ 854 public static boolean canSpecifyOrientation(int stackId) { 855 return stackId == HOME_STACK_ID 856 || stackId == RECENTS_STACK_ID 857 || stackId == FULLSCREEN_WORKSPACE_STACK_ID 858 || stackId == ASSISTANT_STACK_ID 859 || isDynamicStack(stackId); 860 } 861 862 /** Returns the windowing mode that should be used for this input stack id. */ 863 // TODO: To be removed once we are not using stack id for stuff... 864 public static int getWindowingModeForStackId(int stackId) { 865 final int windowingMode; 866 switch (stackId) { 867 case FULLSCREEN_WORKSPACE_STACK_ID: 868 case HOME_STACK_ID: 869 case RECENTS_STACK_ID: 870 case ASSISTANT_STACK_ID: 871 windowingMode = WINDOWING_MODE_FULLSCREEN; 872 break; 873 case PINNED_STACK_ID: 874 windowingMode = WINDOWING_MODE_PINNED; 875 break; 876 case DOCKED_STACK_ID: 877 windowingMode = WINDOWING_MODE_DOCKED; 878 break; 879 case FREEFORM_WORKSPACE_STACK_ID: 880 windowingMode = WINDOWING_MODE_FREEFORM; 881 break; 882 default : 883 windowingMode = WINDOWING_MODE_UNDEFINED; 884 } 885 return windowingMode; 886 } 887 } 888 889 /** 890 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 891 * specifies the position of the created docked stack at the top half of the screen if 892 * in portrait mode or at the left half of the screen if in landscape mode. 893 * @hide 894 */ 895 public static final int DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT = 0; 896 897 /** 898 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 899 * specifies the position of the created docked stack at the bottom half of the screen if 900 * in portrait mode or at the right half of the screen if in landscape mode. 901 * @hide 902 */ 903 public static final int DOCKED_STACK_CREATE_MODE_BOTTOM_OR_RIGHT = 1; 904 905 /** 906 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 907 * that the resize doesn't need to preserve the window, and can be skipped if bounds 908 * is unchanged. This mode is used by window manager in most cases. 909 * @hide 910 */ 911 public static final int RESIZE_MODE_SYSTEM = 0; 912 913 /** 914 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 915 * that the resize should preserve the window if possible. 916 * @hide 917 */ 918 public static final int RESIZE_MODE_PRESERVE_WINDOW = (0x1 << 0); 919 920 /** 921 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 922 * that the resize should be performed even if the bounds appears unchanged. 923 * @hide 924 */ 925 public static final int RESIZE_MODE_FORCED = (0x1 << 1); 926 927 /** 928 * Input parameter to {@link android.app.IActivityManager#resizeTask} used by window 929 * manager during a screen rotation. 930 * @hide 931 */ 932 public static final int RESIZE_MODE_SYSTEM_SCREEN_ROTATION = RESIZE_MODE_PRESERVE_WINDOW; 933 934 /** 935 * Input parameter to {@link android.app.IActivityManager#resizeTask} used when the 936 * resize is due to a drag action. 937 * @hide 938 */ 939 public static final int RESIZE_MODE_USER = RESIZE_MODE_PRESERVE_WINDOW; 940 941 /** 942 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 943 * that the resize should preserve the window if possible, and should not be skipped 944 * even if the bounds is unchanged. Usually used to force a resizing when a drag action 945 * is ending. 946 * @hide 947 */ 948 public static final int RESIZE_MODE_USER_FORCED = 949 RESIZE_MODE_PRESERVE_WINDOW | RESIZE_MODE_FORCED; 950 951 /** @hide */ 952 public int getFrontActivityScreenCompatMode() { 953 try { 954 return getService().getFrontActivityScreenCompatMode(); 955 } catch (RemoteException e) { 956 throw e.rethrowFromSystemServer(); 957 } 958 } 959 960 /** @hide */ 961 public void setFrontActivityScreenCompatMode(int mode) { 962 try { 963 getService().setFrontActivityScreenCompatMode(mode); 964 } catch (RemoteException e) { 965 throw e.rethrowFromSystemServer(); 966 } 967 } 968 969 /** @hide */ 970 public int getPackageScreenCompatMode(String packageName) { 971 try { 972 return getService().getPackageScreenCompatMode(packageName); 973 } catch (RemoteException e) { 974 throw e.rethrowFromSystemServer(); 975 } 976 } 977 978 /** @hide */ 979 public void setPackageScreenCompatMode(String packageName, int mode) { 980 try { 981 getService().setPackageScreenCompatMode(packageName, mode); 982 } catch (RemoteException e) { 983 throw e.rethrowFromSystemServer(); 984 } 985 } 986 987 /** @hide */ 988 public boolean getPackageAskScreenCompat(String packageName) { 989 try { 990 return getService().getPackageAskScreenCompat(packageName); 991 } catch (RemoteException e) { 992 throw e.rethrowFromSystemServer(); 993 } 994 } 995 996 /** @hide */ 997 public void setPackageAskScreenCompat(String packageName, boolean ask) { 998 try { 999 getService().setPackageAskScreenCompat(packageName, ask); 1000 } catch (RemoteException e) { 1001 throw e.rethrowFromSystemServer(); 1002 } 1003 } 1004 1005 /** 1006 * Return the approximate per-application memory class of the current 1007 * device. This gives you an idea of how hard a memory limit you should 1008 * impose on your application to let the overall system work best. The 1009 * returned value is in megabytes; the baseline Android memory class is 1010 * 16 (which happens to be the Java heap limit of those devices); some 1011 * device with more memory may return 24 or even higher numbers. 1012 */ 1013 public int getMemoryClass() { 1014 return staticGetMemoryClass(); 1015 } 1016 1017 /** @hide */ 1018 static public int staticGetMemoryClass() { 1019 // Really brain dead right now -- just take this from the configured 1020 // vm heap size, and assume it is in megabytes and thus ends with "m". 1021 String vmHeapSize = SystemProperties.get("dalvik.vm.heapgrowthlimit", ""); 1022 if (vmHeapSize != null && !"".equals(vmHeapSize)) { 1023 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1)); 1024 } 1025 return staticGetLargeMemoryClass(); 1026 } 1027 1028 /** 1029 * Return the approximate per-application memory class of the current 1030 * device when an application is running with a large heap. This is the 1031 * space available for memory-intensive applications; most applications 1032 * should not need this amount of memory, and should instead stay with the 1033 * {@link #getMemoryClass()} limit. The returned value is in megabytes. 1034 * This may be the same size as {@link #getMemoryClass()} on memory 1035 * constrained devices, or it may be significantly larger on devices with 1036 * a large amount of available RAM. 1037 * 1038 * <p>The is the size of the application's Dalvik heap if it has 1039 * specified <code>android:largeHeap="true"</code> in its manifest. 1040 */ 1041 public int getLargeMemoryClass() { 1042 return staticGetLargeMemoryClass(); 1043 } 1044 1045 /** @hide */ 1046 static public int staticGetLargeMemoryClass() { 1047 // Really brain dead right now -- just take this from the configured 1048 // vm heap size, and assume it is in megabytes and thus ends with "m". 1049 String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m"); 1050 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1)); 1051 } 1052 1053 /** 1054 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 1055 * is ultimately up to the device configuration, but currently it generally means 1056 * something in the class of a 512MB device with about a 800x480 or less screen. 1057 * This is mostly intended to be used by apps to determine whether they should turn 1058 * off certain features that require more RAM. 1059 */ 1060 public boolean isLowRamDevice() { 1061 return isLowRamDeviceStatic(); 1062 } 1063 1064 /** @hide */ 1065 public static boolean isLowRamDeviceStatic() { 1066 return RoSystemProperties.CONFIG_LOW_RAM || 1067 (Build.IS_DEBUGGABLE && DEVELOPMENT_FORCE_LOW_RAM); 1068 } 1069 1070 /** 1071 * Returns true if this is a small battery device. Exactly whether a device is considered to be 1072 * small battery is ultimately up to the device configuration, but currently it generally means 1073 * something in the class of a device with 1000 mAh or less. This is mostly intended to be used 1074 * to determine whether certain features should be altered to account for a drastically smaller 1075 * battery. 1076 * @hide 1077 */ 1078 public static boolean isSmallBatteryDevice() { 1079 return RoSystemProperties.CONFIG_SMALL_BATTERY; 1080 } 1081 1082 /** 1083 * Used by persistent processes to determine if they are running on a 1084 * higher-end device so should be okay using hardware drawing acceleration 1085 * (which tends to consume a lot more RAM). 1086 * @hide 1087 */ 1088 static public boolean isHighEndGfx() { 1089 return !isLowRamDeviceStatic() && 1090 !Resources.getSystem().getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 1091 } 1092 1093 /** 1094 * Return the maximum number of recents entries that we will maintain and show. 1095 * @hide 1096 */ 1097 static public int getMaxRecentTasksStatic() { 1098 if (gMaxRecentTasks < 0) { 1099 return gMaxRecentTasks = isLowRamDeviceStatic() ? 36 : 48; 1100 } 1101 return gMaxRecentTasks; 1102 } 1103 1104 /** 1105 * Return the default limit on the number of recents that an app can make. 1106 * @hide 1107 */ 1108 static public int getDefaultAppRecentsLimitStatic() { 1109 return getMaxRecentTasksStatic() / 6; 1110 } 1111 1112 /** 1113 * Return the maximum limit on the number of recents that an app can make. 1114 * @hide 1115 */ 1116 static public int getMaxAppRecentsLimitStatic() { 1117 return getMaxRecentTasksStatic() / 2; 1118 } 1119 1120 /** 1121 * Returns true if the system supports at least one form of multi-window. 1122 * E.g. freeform, split-screen, picture-in-picture. 1123 * @hide 1124 */ 1125 static public boolean supportsMultiWindow(Context context) { 1126 // On watches, multi-window is used to present essential system UI, and thus it must be 1127 // supported regardless of device memory characteristics. 1128 boolean isWatch = context.getPackageManager().hasSystemFeature( 1129 PackageManager.FEATURE_WATCH); 1130 return (!isLowRamDeviceStatic() || isWatch) 1131 && Resources.getSystem().getBoolean( 1132 com.android.internal.R.bool.config_supportsMultiWindow); 1133 } 1134 1135 /** 1136 * Returns true if the system supports split screen multi-window. 1137 * @hide 1138 */ 1139 static public boolean supportsSplitScreenMultiWindow(Context context) { 1140 return supportsMultiWindow(context) 1141 && Resources.getSystem().getBoolean( 1142 com.android.internal.R.bool.config_supportsSplitScreenMultiWindow); 1143 } 1144 1145 /** @removed */ 1146 @Deprecated 1147 public static int getMaxNumPictureInPictureActions() { 1148 return 3; 1149 } 1150 1151 /** 1152 * Information you can set and retrieve about the current activity within the recent task list. 1153 */ 1154 public static class TaskDescription implements Parcelable { 1155 /** @hide */ 1156 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 1157 private static final String ATTR_TASKDESCRIPTIONLABEL = 1158 ATTR_TASKDESCRIPTION_PREFIX + "label"; 1159 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 1160 ATTR_TASKDESCRIPTION_PREFIX + "color"; 1161 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 1162 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 1163 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 1164 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 1165 1166 private String mLabel; 1167 private Bitmap mIcon; 1168 private String mIconFilename; 1169 private int mColorPrimary; 1170 private int mColorBackground; 1171 private int mStatusBarColor; 1172 private int mNavigationBarColor; 1173 1174 /** 1175 * Creates the TaskDescription to the specified values. 1176 * 1177 * @param label A label and description of the current state of this task. 1178 * @param icon An icon that represents the current state of this task. 1179 * @param colorPrimary A color to override the theme's primary color. This color must be 1180 * opaque. 1181 */ 1182 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 1183 this(label, icon, null, colorPrimary, 0, 0, 0); 1184 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1185 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1186 } 1187 } 1188 1189 /** 1190 * Creates the TaskDescription to the specified values. 1191 * 1192 * @param label A label and description of the current state of this activity. 1193 * @param icon An icon that represents the current state of this activity. 1194 */ 1195 public TaskDescription(String label, Bitmap icon) { 1196 this(label, icon, null, 0, 0, 0, 0); 1197 } 1198 1199 /** 1200 * Creates the TaskDescription to the specified values. 1201 * 1202 * @param label A label and description of the current state of this activity. 1203 */ 1204 public TaskDescription(String label) { 1205 this(label, null, null, 0, 0, 0, 0); 1206 } 1207 1208 /** 1209 * Creates an empty TaskDescription. 1210 */ 1211 public TaskDescription() { 1212 this(null, null, null, 0, 0, 0, 0); 1213 } 1214 1215 /** @hide */ 1216 public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary, 1217 int colorBackground, int statusBarColor, int navigationBarColor) { 1218 mLabel = label; 1219 mIcon = icon; 1220 mIconFilename = iconFilename; 1221 mColorPrimary = colorPrimary; 1222 mColorBackground = colorBackground; 1223 mStatusBarColor = statusBarColor; 1224 mNavigationBarColor = navigationBarColor; 1225 } 1226 1227 /** 1228 * Creates a copy of another TaskDescription. 1229 */ 1230 public TaskDescription(TaskDescription td) { 1231 copyFrom(td); 1232 } 1233 1234 /** 1235 * Copies this the values from another TaskDescription. 1236 * @hide 1237 */ 1238 public void copyFrom(TaskDescription other) { 1239 mLabel = other.mLabel; 1240 mIcon = other.mIcon; 1241 mIconFilename = other.mIconFilename; 1242 mColorPrimary = other.mColorPrimary; 1243 mColorBackground = other.mColorBackground; 1244 mStatusBarColor = other.mStatusBarColor; 1245 mNavigationBarColor = other.mNavigationBarColor; 1246 } 1247 1248 /** 1249 * Copies this the values from another TaskDescription, but preserves the hidden fields 1250 * if they weren't set on {@code other} 1251 * @hide 1252 */ 1253 public void copyFromPreserveHiddenFields(TaskDescription other) { 1254 mLabel = other.mLabel; 1255 mIcon = other.mIcon; 1256 mIconFilename = other.mIconFilename; 1257 mColorPrimary = other.mColorPrimary; 1258 if (other.mColorBackground != 0) { 1259 mColorBackground = other.mColorBackground; 1260 } 1261 if (other.mStatusBarColor != 0) { 1262 mStatusBarColor = other.mStatusBarColor; 1263 } 1264 if (other.mNavigationBarColor != 0) { 1265 mNavigationBarColor = other.mNavigationBarColor; 1266 } 1267 } 1268 1269 private TaskDescription(Parcel source) { 1270 readFromParcel(source); 1271 } 1272 1273 /** 1274 * Sets the label for this task description. 1275 * @hide 1276 */ 1277 public void setLabel(String label) { 1278 mLabel = label; 1279 } 1280 1281 /** 1282 * Sets the primary color for this task description. 1283 * @hide 1284 */ 1285 public void setPrimaryColor(int primaryColor) { 1286 // Ensure that the given color is valid 1287 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1288 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1289 } 1290 mColorPrimary = primaryColor; 1291 } 1292 1293 /** 1294 * Sets the background color for this task description. 1295 * @hide 1296 */ 1297 public void setBackgroundColor(int backgroundColor) { 1298 // Ensure that the given color is valid 1299 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1300 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1301 } 1302 mColorBackground = backgroundColor; 1303 } 1304 1305 /** 1306 * @hide 1307 */ 1308 public void setStatusBarColor(int statusBarColor) { 1309 mStatusBarColor = statusBarColor; 1310 } 1311 1312 /** 1313 * @hide 1314 */ 1315 public void setNavigationBarColor(int navigationBarColor) { 1316 mNavigationBarColor = navigationBarColor; 1317 } 1318 1319 /** 1320 * Sets the icon for this task description. 1321 * @hide 1322 */ 1323 public void setIcon(Bitmap icon) { 1324 mIcon = icon; 1325 } 1326 1327 /** 1328 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1329 * bitmap. 1330 * @hide 1331 */ 1332 public void setIconFilename(String iconFilename) { 1333 mIconFilename = iconFilename; 1334 mIcon = null; 1335 } 1336 1337 /** 1338 * @return The label and description of the current state of this task. 1339 */ 1340 public String getLabel() { 1341 return mLabel; 1342 } 1343 1344 /** 1345 * @return The icon that represents the current state of this task. 1346 */ 1347 public Bitmap getIcon() { 1348 if (mIcon != null) { 1349 return mIcon; 1350 } 1351 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1352 } 1353 1354 /** @hide */ 1355 public String getIconFilename() { 1356 return mIconFilename; 1357 } 1358 1359 /** @hide */ 1360 public Bitmap getInMemoryIcon() { 1361 return mIcon; 1362 } 1363 1364 /** @hide */ 1365 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1366 if (iconFilename != null) { 1367 try { 1368 return getService().getTaskDescriptionIcon(iconFilename, 1369 userId); 1370 } catch (RemoteException e) { 1371 throw e.rethrowFromSystemServer(); 1372 } 1373 } 1374 return null; 1375 } 1376 1377 /** 1378 * @return The color override on the theme's primary color. 1379 */ 1380 public int getPrimaryColor() { 1381 return mColorPrimary; 1382 } 1383 1384 /** 1385 * @return The background color. 1386 * @hide 1387 */ 1388 public int getBackgroundColor() { 1389 return mColorBackground; 1390 } 1391 1392 /** 1393 * @hide 1394 */ 1395 public int getStatusBarColor() { 1396 return mStatusBarColor; 1397 } 1398 1399 /** 1400 * @hide 1401 */ 1402 public int getNavigationBarColor() { 1403 return mNavigationBarColor; 1404 } 1405 1406 /** @hide */ 1407 public void saveToXml(XmlSerializer out) throws IOException { 1408 if (mLabel != null) { 1409 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1410 } 1411 if (mColorPrimary != 0) { 1412 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1413 Integer.toHexString(mColorPrimary)); 1414 } 1415 if (mColorBackground != 0) { 1416 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1417 Integer.toHexString(mColorBackground)); 1418 } 1419 if (mIconFilename != null) { 1420 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 1421 } 1422 } 1423 1424 /** @hide */ 1425 public void restoreFromXml(String attrName, String attrValue) { 1426 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1427 setLabel(attrValue); 1428 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1429 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1430 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1431 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1432 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 1433 setIconFilename(attrValue); 1434 } 1435 } 1436 1437 @Override 1438 public int describeContents() { 1439 return 0; 1440 } 1441 1442 @Override 1443 public void writeToParcel(Parcel dest, int flags) { 1444 if (mLabel == null) { 1445 dest.writeInt(0); 1446 } else { 1447 dest.writeInt(1); 1448 dest.writeString(mLabel); 1449 } 1450 if (mIcon == null) { 1451 dest.writeInt(0); 1452 } else { 1453 dest.writeInt(1); 1454 mIcon.writeToParcel(dest, 0); 1455 } 1456 dest.writeInt(mColorPrimary); 1457 dest.writeInt(mColorBackground); 1458 dest.writeInt(mStatusBarColor); 1459 dest.writeInt(mNavigationBarColor); 1460 if (mIconFilename == null) { 1461 dest.writeInt(0); 1462 } else { 1463 dest.writeInt(1); 1464 dest.writeString(mIconFilename); 1465 } 1466 } 1467 1468 public void readFromParcel(Parcel source) { 1469 mLabel = source.readInt() > 0 ? source.readString() : null; 1470 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1471 mColorPrimary = source.readInt(); 1472 mColorBackground = source.readInt(); 1473 mStatusBarColor = source.readInt(); 1474 mNavigationBarColor = source.readInt(); 1475 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1476 } 1477 1478 public static final Creator<TaskDescription> CREATOR 1479 = new Creator<TaskDescription>() { 1480 public TaskDescription createFromParcel(Parcel source) { 1481 return new TaskDescription(source); 1482 } 1483 public TaskDescription[] newArray(int size) { 1484 return new TaskDescription[size]; 1485 } 1486 }; 1487 1488 @Override 1489 public String toString() { 1490 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1491 " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary + 1492 " colorBackground: " + mColorBackground + 1493 " statusBarColor: " + mColorBackground + 1494 " navigationBarColor: " + mNavigationBarColor; 1495 } 1496 } 1497 1498 /** 1499 * Information you can retrieve about tasks that the user has most recently 1500 * started or visited. 1501 */ 1502 public static class RecentTaskInfo implements Parcelable { 1503 /** 1504 * If this task is currently running, this is the identifier for it. 1505 * If it is not running, this will be -1. 1506 */ 1507 public int id; 1508 1509 /** 1510 * The true identifier of this task, valid even if it is not running. 1511 */ 1512 public int persistentId; 1513 1514 /** 1515 * The original Intent used to launch the task. You can use this 1516 * Intent to re-launch the task (if it is no longer running) or bring 1517 * the current task to the front. 1518 */ 1519 public Intent baseIntent; 1520 1521 /** 1522 * If this task was started from an alias, this is the actual 1523 * activity component that was initially started; the component of 1524 * the baseIntent in this case is the name of the actual activity 1525 * implementation that the alias referred to. Otherwise, this is null. 1526 */ 1527 public ComponentName origActivity; 1528 1529 /** 1530 * The actual activity component that started the task. 1531 * @hide 1532 */ 1533 @Nullable 1534 public ComponentName realActivity; 1535 1536 /** 1537 * Description of the task's last state. 1538 */ 1539 public CharSequence description; 1540 1541 /** 1542 * The id of the ActivityStack this Task was on most recently. 1543 * @hide 1544 */ 1545 public int stackId; 1546 1547 /** 1548 * The id of the user the task was running as. 1549 * @hide 1550 */ 1551 public int userId; 1552 1553 /** 1554 * The first time this task was active. 1555 * @hide 1556 */ 1557 public long firstActiveTime; 1558 1559 /** 1560 * The last time this task was active. 1561 * @hide 1562 */ 1563 public long lastActiveTime; 1564 1565 /** 1566 * The recent activity values for the highest activity in the stack to have set the values. 1567 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1568 */ 1569 public TaskDescription taskDescription; 1570 1571 /** 1572 * Task affiliation for grouping with other tasks. 1573 */ 1574 public int affiliatedTaskId; 1575 1576 /** 1577 * Task affiliation color of the source task with the affiliated task id. 1578 * 1579 * @hide 1580 */ 1581 public int affiliatedTaskColor; 1582 1583 /** 1584 * The component launched as the first activity in the task. 1585 * This can be considered the "application" of this task. 1586 */ 1587 public ComponentName baseActivity; 1588 1589 /** 1590 * The activity component at the top of the history stack of the task. 1591 * This is what the user is currently doing. 1592 */ 1593 public ComponentName topActivity; 1594 1595 /** 1596 * Number of activities in this task. 1597 */ 1598 public int numActivities; 1599 1600 /** 1601 * The bounds of the task. 1602 * @hide 1603 */ 1604 public Rect bounds; 1605 1606 /** 1607 * True if the task can go in the docked stack. 1608 * @hide 1609 */ 1610 public boolean supportsSplitScreenMultiWindow; 1611 1612 /** 1613 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1614 * @hide 1615 */ 1616 public int resizeMode; 1617 1618 public RecentTaskInfo() { 1619 } 1620 1621 @Override 1622 public int describeContents() { 1623 return 0; 1624 } 1625 1626 @Override 1627 public void writeToParcel(Parcel dest, int flags) { 1628 dest.writeInt(id); 1629 dest.writeInt(persistentId); 1630 if (baseIntent != null) { 1631 dest.writeInt(1); 1632 baseIntent.writeToParcel(dest, 0); 1633 } else { 1634 dest.writeInt(0); 1635 } 1636 ComponentName.writeToParcel(origActivity, dest); 1637 ComponentName.writeToParcel(realActivity, dest); 1638 TextUtils.writeToParcel(description, dest, 1639 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1640 if (taskDescription != null) { 1641 dest.writeInt(1); 1642 taskDescription.writeToParcel(dest, 0); 1643 } else { 1644 dest.writeInt(0); 1645 } 1646 dest.writeInt(stackId); 1647 dest.writeInt(userId); 1648 dest.writeLong(firstActiveTime); 1649 dest.writeLong(lastActiveTime); 1650 dest.writeInt(affiliatedTaskId); 1651 dest.writeInt(affiliatedTaskColor); 1652 ComponentName.writeToParcel(baseActivity, dest); 1653 ComponentName.writeToParcel(topActivity, dest); 1654 dest.writeInt(numActivities); 1655 if (bounds != null) { 1656 dest.writeInt(1); 1657 bounds.writeToParcel(dest, 0); 1658 } else { 1659 dest.writeInt(0); 1660 } 1661 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1662 dest.writeInt(resizeMode); 1663 } 1664 1665 public void readFromParcel(Parcel source) { 1666 id = source.readInt(); 1667 persistentId = source.readInt(); 1668 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1669 origActivity = ComponentName.readFromParcel(source); 1670 realActivity = ComponentName.readFromParcel(source); 1671 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1672 taskDescription = source.readInt() > 0 ? 1673 TaskDescription.CREATOR.createFromParcel(source) : null; 1674 stackId = source.readInt(); 1675 userId = source.readInt(); 1676 firstActiveTime = source.readLong(); 1677 lastActiveTime = source.readLong(); 1678 affiliatedTaskId = source.readInt(); 1679 affiliatedTaskColor = source.readInt(); 1680 baseActivity = ComponentName.readFromParcel(source); 1681 topActivity = ComponentName.readFromParcel(source); 1682 numActivities = source.readInt(); 1683 bounds = source.readInt() > 0 ? 1684 Rect.CREATOR.createFromParcel(source) : null; 1685 supportsSplitScreenMultiWindow = source.readInt() == 1; 1686 resizeMode = source.readInt(); 1687 } 1688 1689 public static final Creator<RecentTaskInfo> CREATOR 1690 = new Creator<RecentTaskInfo>() { 1691 public RecentTaskInfo createFromParcel(Parcel source) { 1692 return new RecentTaskInfo(source); 1693 } 1694 public RecentTaskInfo[] newArray(int size) { 1695 return new RecentTaskInfo[size]; 1696 } 1697 }; 1698 1699 private RecentTaskInfo(Parcel source) { 1700 readFromParcel(source); 1701 } 1702 } 1703 1704 /** 1705 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1706 * that have set their 1707 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1708 */ 1709 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1710 1711 /** 1712 * Provides a list that does not contain any 1713 * recent tasks that currently are not available to the user. 1714 */ 1715 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1716 1717 /** 1718 * Provides a list that contains recent tasks for all 1719 * profiles of a user. 1720 * @hide 1721 */ 1722 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1723 1724 /** 1725 * Ignores all tasks that are on the home stack. 1726 * @hide 1727 */ 1728 public static final int RECENT_IGNORE_HOME_AND_RECENTS_STACK_TASKS = 0x0008; 1729 1730 /** 1731 * Ignores the top task in the docked stack. 1732 * @hide 1733 */ 1734 public static final int RECENT_INGORE_DOCKED_STACK_TOP_TASK = 0x0010; 1735 1736 /** 1737 * Ignores all tasks that are on the pinned stack. 1738 * @hide 1739 */ 1740 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1741 1742 /** 1743 * <p></p>Return a list of the tasks that the user has recently launched, with 1744 * the most recent being first and older ones after in order. 1745 * 1746 * <p><b>Note: this method is only intended for debugging and presenting 1747 * task management user interfaces</b>. This should never be used for 1748 * core logic in an application, such as deciding between different 1749 * behaviors based on the information found here. Such uses are 1750 * <em>not</em> supported, and will likely break in the future. For 1751 * example, if multiple applications can be actively running at the 1752 * same time, assumptions made about the meaning of the data here for 1753 * purposes of control flow will be incorrect.</p> 1754 * 1755 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1756 * no longer available to third party applications: the introduction of 1757 * document-centric recents means 1758 * it can leak personal information to the caller. For backwards compatibility, 1759 * it will still return a small subset of its data: at least the caller's 1760 * own tasks (though see {@link #getAppTasks()} for the correct supported 1761 * way to retrieve that information), and possibly some other tasks 1762 * such as home that are known to not be sensitive. 1763 * 1764 * @param maxNum The maximum number of entries to return in the list. The 1765 * actual number returned may be smaller, depending on how many tasks the 1766 * user has started and the maximum number the system can remember. 1767 * @param flags Information about what to return. May be any combination 1768 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1769 * 1770 * @return Returns a list of RecentTaskInfo records describing each of 1771 * the recent tasks. 1772 */ 1773 @Deprecated 1774 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1775 throws SecurityException { 1776 try { 1777 return getService().getRecentTasks(maxNum, 1778 flags, UserHandle.myUserId()).getList(); 1779 } catch (RemoteException e) { 1780 throw e.rethrowFromSystemServer(); 1781 } 1782 } 1783 1784 /** 1785 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1786 * specific user. It requires holding 1787 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1788 * @param maxNum The maximum number of entries to return in the list. The 1789 * actual number returned may be smaller, depending on how many tasks the 1790 * user has started and the maximum number the system can remember. 1791 * @param flags Information about what to return. May be any combination 1792 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1793 * 1794 * @return Returns a list of RecentTaskInfo records describing each of 1795 * the recent tasks. Most recently activated tasks go first. 1796 * 1797 * @hide 1798 */ 1799 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1800 throws SecurityException { 1801 try { 1802 return getService().getRecentTasks(maxNum, 1803 flags, userId).getList(); 1804 } catch (RemoteException e) { 1805 throw e.rethrowFromSystemServer(); 1806 } 1807 } 1808 1809 /** 1810 * Information you can retrieve about a particular task that is currently 1811 * "running" in the system. Note that a running task does not mean the 1812 * given task actually has a process it is actively running in; it simply 1813 * means that the user has gone to it and never closed it, but currently 1814 * the system may have killed its process and is only holding on to its 1815 * last state in order to restart it when the user returns. 1816 */ 1817 public static class RunningTaskInfo implements Parcelable { 1818 /** 1819 * A unique identifier for this task. 1820 */ 1821 public int id; 1822 1823 /** 1824 * The stack that currently contains this task. 1825 * @hide 1826 */ 1827 public int stackId; 1828 1829 /** 1830 * The component launched as the first activity in the task. This can 1831 * be considered the "application" of this task. 1832 */ 1833 public ComponentName baseActivity; 1834 1835 /** 1836 * The activity component at the top of the history stack of the task. 1837 * This is what the user is currently doing. 1838 */ 1839 public ComponentName topActivity; 1840 1841 /** 1842 * Thumbnail representation of the task's current state. Currently 1843 * always null. 1844 */ 1845 public Bitmap thumbnail; 1846 1847 /** 1848 * Description of the task's current state. 1849 */ 1850 public CharSequence description; 1851 1852 /** 1853 * Number of activities in this task. 1854 */ 1855 public int numActivities; 1856 1857 /** 1858 * Number of activities that are currently running (not stopped 1859 * and persisted) in this task. 1860 */ 1861 public int numRunning; 1862 1863 /** 1864 * Last time task was run. For sorting. 1865 * @hide 1866 */ 1867 public long lastActiveTime; 1868 1869 /** 1870 * True if the task can go in the docked stack. 1871 * @hide 1872 */ 1873 public boolean supportsSplitScreenMultiWindow; 1874 1875 /** 1876 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1877 * @hide 1878 */ 1879 public int resizeMode; 1880 1881 public RunningTaskInfo() { 1882 } 1883 1884 public int describeContents() { 1885 return 0; 1886 } 1887 1888 public void writeToParcel(Parcel dest, int flags) { 1889 dest.writeInt(id); 1890 dest.writeInt(stackId); 1891 ComponentName.writeToParcel(baseActivity, dest); 1892 ComponentName.writeToParcel(topActivity, dest); 1893 if (thumbnail != null) { 1894 dest.writeInt(1); 1895 thumbnail.writeToParcel(dest, 0); 1896 } else { 1897 dest.writeInt(0); 1898 } 1899 TextUtils.writeToParcel(description, dest, 1900 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1901 dest.writeInt(numActivities); 1902 dest.writeInt(numRunning); 1903 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1904 dest.writeInt(resizeMode); 1905 } 1906 1907 public void readFromParcel(Parcel source) { 1908 id = source.readInt(); 1909 stackId = source.readInt(); 1910 baseActivity = ComponentName.readFromParcel(source); 1911 topActivity = ComponentName.readFromParcel(source); 1912 if (source.readInt() != 0) { 1913 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1914 } else { 1915 thumbnail = null; 1916 } 1917 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1918 numActivities = source.readInt(); 1919 numRunning = source.readInt(); 1920 supportsSplitScreenMultiWindow = source.readInt() != 0; 1921 resizeMode = source.readInt(); 1922 } 1923 1924 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1925 public RunningTaskInfo createFromParcel(Parcel source) { 1926 return new RunningTaskInfo(source); 1927 } 1928 public RunningTaskInfo[] newArray(int size) { 1929 return new RunningTaskInfo[size]; 1930 } 1931 }; 1932 1933 private RunningTaskInfo(Parcel source) { 1934 readFromParcel(source); 1935 } 1936 } 1937 1938 /** 1939 * Get the list of tasks associated with the calling application. 1940 * 1941 * @return The list of tasks associated with the application making this call. 1942 * @throws SecurityException 1943 */ 1944 public List<ActivityManager.AppTask> getAppTasks() { 1945 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1946 List<IBinder> appTasks; 1947 try { 1948 appTasks = getService().getAppTasks(mContext.getPackageName()); 1949 } catch (RemoteException e) { 1950 throw e.rethrowFromSystemServer(); 1951 } 1952 int numAppTasks = appTasks.size(); 1953 for (int i = 0; i < numAppTasks; i++) { 1954 tasks.add(new AppTask(IAppTask.Stub.asInterface(appTasks.get(i)))); 1955 } 1956 return tasks; 1957 } 1958 1959 /** 1960 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1961 * with {@link #addAppTask}. 1962 */ 1963 public Size getAppTaskThumbnailSize() { 1964 synchronized (this) { 1965 ensureAppTaskThumbnailSizeLocked(); 1966 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1967 } 1968 } 1969 1970 private void ensureAppTaskThumbnailSizeLocked() { 1971 if (mAppTaskThumbnailSize == null) { 1972 try { 1973 mAppTaskThumbnailSize = getService().getAppTaskThumbnailSize(); 1974 } catch (RemoteException e) { 1975 throw e.rethrowFromSystemServer(); 1976 } 1977 } 1978 } 1979 1980 /** 1981 * Add a new {@link AppTask} for the calling application. This will create a new 1982 * recents entry that is added to the <b>end</b> of all existing recents. 1983 * 1984 * @param activity The activity that is adding the entry. This is used to help determine 1985 * the context that the new recents entry will be in. 1986 * @param intent The Intent that describes the recents entry. This is the same Intent that 1987 * you would have used to launch the activity for it. In generally you will want to set 1988 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1989 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1990 * entry will exist without an activity, so it doesn't make sense to not retain it when 1991 * its activity disappears. The given Intent here also must have an explicit ComponentName 1992 * set on it. 1993 * @param description Optional additional description information. 1994 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1995 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1996 * recreated in your process, probably in a way you don't like, before the recents entry 1997 * is added. 1998 * 1999 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 2000 * most likely cause of failure is that there is no more room for more tasks for your app. 2001 */ 2002 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 2003 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 2004 Point size; 2005 synchronized (this) { 2006 ensureAppTaskThumbnailSizeLocked(); 2007 size = mAppTaskThumbnailSize; 2008 } 2009 final int tw = thumbnail.getWidth(); 2010 final int th = thumbnail.getHeight(); 2011 if (tw != size.x || th != size.y) { 2012 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 2013 2014 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 2015 float scale; 2016 float dx = 0, dy = 0; 2017 if (tw * size.x > size.y * th) { 2018 scale = (float) size.x / (float) th; 2019 dx = (size.y - tw * scale) * 0.5f; 2020 } else { 2021 scale = (float) size.y / (float) tw; 2022 dy = (size.x - th * scale) * 0.5f; 2023 } 2024 Matrix matrix = new Matrix(); 2025 matrix.setScale(scale, scale); 2026 matrix.postTranslate((int) (dx + 0.5f), 0); 2027 2028 Canvas canvas = new Canvas(bm); 2029 canvas.drawBitmap(thumbnail, matrix, null); 2030 canvas.setBitmap(null); 2031 2032 thumbnail = bm; 2033 } 2034 if (description == null) { 2035 description = new TaskDescription(); 2036 } 2037 try { 2038 return getService().addAppTask(activity.getActivityToken(), 2039 intent, description, thumbnail); 2040 } catch (RemoteException e) { 2041 throw e.rethrowFromSystemServer(); 2042 } 2043 } 2044 2045 /** 2046 * Return a list of the tasks that are currently running, with 2047 * the most recent being first and older ones after in order. Note that 2048 * "running" does not mean any of the task's code is currently loaded or 2049 * activity -- the task may have been frozen by the system, so that it 2050 * can be restarted in its previous state when next brought to the 2051 * foreground. 2052 * 2053 * <p><b>Note: this method is only intended for debugging and presenting 2054 * task management user interfaces</b>. This should never be used for 2055 * core logic in an application, such as deciding between different 2056 * behaviors based on the information found here. Such uses are 2057 * <em>not</em> supported, and will likely break in the future. For 2058 * example, if multiple applications can be actively running at the 2059 * same time, assumptions made about the meaning of the data here for 2060 * purposes of control flow will be incorrect.</p> 2061 * 2062 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 2063 * is no longer available to third party 2064 * applications: the introduction of document-centric recents means 2065 * it can leak person information to the caller. For backwards compatibility, 2066 * it will still return a small subset of its data: at least the caller's 2067 * own tasks, and possibly some other tasks 2068 * such as home that are known to not be sensitive. 2069 * 2070 * @param maxNum The maximum number of entries to return in the list. The 2071 * actual number returned may be smaller, depending on how many tasks the 2072 * user has started. 2073 * 2074 * @return Returns a list of RunningTaskInfo records describing each of 2075 * the running tasks. 2076 */ 2077 @Deprecated 2078 public List<RunningTaskInfo> getRunningTasks(int maxNum) 2079 throws SecurityException { 2080 try { 2081 return getService().getTasks(maxNum, 0); 2082 } catch (RemoteException e) { 2083 throw e.rethrowFromSystemServer(); 2084 } 2085 } 2086 2087 /** 2088 * Completely remove the given task. 2089 * 2090 * @param taskId Identifier of the task to be removed. 2091 * @return Returns true if the given task was found and removed. 2092 * 2093 * @hide 2094 */ 2095 public boolean removeTask(int taskId) throws SecurityException { 2096 try { 2097 return getService().removeTask(taskId); 2098 } catch (RemoteException e) { 2099 throw e.rethrowFromSystemServer(); 2100 } 2101 } 2102 2103 /** 2104 * Metadata related to the {@link TaskThumbnail}. 2105 * 2106 * @hide 2107 */ 2108 public static class TaskThumbnailInfo implements Parcelable { 2109 /** @hide */ 2110 public static final String ATTR_TASK_THUMBNAILINFO_PREFIX = "task_thumbnailinfo_"; 2111 private static final String ATTR_TASK_WIDTH = 2112 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_width"; 2113 private static final String ATTR_TASK_HEIGHT = 2114 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_height"; 2115 private static final String ATTR_SCREEN_ORIENTATION = 2116 ATTR_TASK_THUMBNAILINFO_PREFIX + "screen_orientation"; 2117 2118 public int taskWidth; 2119 public int taskHeight; 2120 public int screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2121 2122 public TaskThumbnailInfo() { 2123 // Do nothing 2124 } 2125 2126 private TaskThumbnailInfo(Parcel source) { 2127 readFromParcel(source); 2128 } 2129 2130 /** 2131 * Resets this info state to the initial state. 2132 * @hide 2133 */ 2134 public void reset() { 2135 taskWidth = 0; 2136 taskHeight = 0; 2137 screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2138 } 2139 2140 /** 2141 * Copies from another ThumbnailInfo. 2142 */ 2143 public void copyFrom(TaskThumbnailInfo o) { 2144 taskWidth = o.taskWidth; 2145 taskHeight = o.taskHeight; 2146 screenOrientation = o.screenOrientation; 2147 } 2148 2149 /** @hide */ 2150 public void saveToXml(XmlSerializer out) throws IOException { 2151 out.attribute(null, ATTR_TASK_WIDTH, Integer.toString(taskWidth)); 2152 out.attribute(null, ATTR_TASK_HEIGHT, Integer.toString(taskHeight)); 2153 out.attribute(null, ATTR_SCREEN_ORIENTATION, Integer.toString(screenOrientation)); 2154 } 2155 2156 /** @hide */ 2157 public void restoreFromXml(String attrName, String attrValue) { 2158 if (ATTR_TASK_WIDTH.equals(attrName)) { 2159 taskWidth = Integer.parseInt(attrValue); 2160 } else if (ATTR_TASK_HEIGHT.equals(attrName)) { 2161 taskHeight = Integer.parseInt(attrValue); 2162 } else if (ATTR_SCREEN_ORIENTATION.equals(attrName)) { 2163 screenOrientation = Integer.parseInt(attrValue); 2164 } 2165 } 2166 2167 public int describeContents() { 2168 return 0; 2169 } 2170 2171 public void writeToParcel(Parcel dest, int flags) { 2172 dest.writeInt(taskWidth); 2173 dest.writeInt(taskHeight); 2174 dest.writeInt(screenOrientation); 2175 } 2176 2177 public void readFromParcel(Parcel source) { 2178 taskWidth = source.readInt(); 2179 taskHeight = source.readInt(); 2180 screenOrientation = source.readInt(); 2181 } 2182 2183 public static final Creator<TaskThumbnailInfo> CREATOR = new Creator<TaskThumbnailInfo>() { 2184 public TaskThumbnailInfo createFromParcel(Parcel source) { 2185 return new TaskThumbnailInfo(source); 2186 } 2187 public TaskThumbnailInfo[] newArray(int size) { 2188 return new TaskThumbnailInfo[size]; 2189 } 2190 }; 2191 } 2192 2193 /** @hide */ 2194 public static class TaskThumbnail implements Parcelable { 2195 public Bitmap mainThumbnail; 2196 public ParcelFileDescriptor thumbnailFileDescriptor; 2197 public TaskThumbnailInfo thumbnailInfo; 2198 2199 public TaskThumbnail() { 2200 } 2201 2202 private TaskThumbnail(Parcel source) { 2203 readFromParcel(source); 2204 } 2205 2206 public int describeContents() { 2207 if (thumbnailFileDescriptor != null) { 2208 return thumbnailFileDescriptor.describeContents(); 2209 } 2210 return 0; 2211 } 2212 2213 public void writeToParcel(Parcel dest, int flags) { 2214 if (mainThumbnail != null) { 2215 dest.writeInt(1); 2216 mainThumbnail.writeToParcel(dest, flags); 2217 } else { 2218 dest.writeInt(0); 2219 } 2220 if (thumbnailFileDescriptor != null) { 2221 dest.writeInt(1); 2222 thumbnailFileDescriptor.writeToParcel(dest, flags); 2223 } else { 2224 dest.writeInt(0); 2225 } 2226 if (thumbnailInfo != null) { 2227 dest.writeInt(1); 2228 thumbnailInfo.writeToParcel(dest, flags); 2229 } else { 2230 dest.writeInt(0); 2231 } 2232 } 2233 2234 public void readFromParcel(Parcel source) { 2235 if (source.readInt() != 0) { 2236 mainThumbnail = Bitmap.CREATOR.createFromParcel(source); 2237 } else { 2238 mainThumbnail = null; 2239 } 2240 if (source.readInt() != 0) { 2241 thumbnailFileDescriptor = ParcelFileDescriptor.CREATOR.createFromParcel(source); 2242 } else { 2243 thumbnailFileDescriptor = null; 2244 } 2245 if (source.readInt() != 0) { 2246 thumbnailInfo = TaskThumbnailInfo.CREATOR.createFromParcel(source); 2247 } else { 2248 thumbnailInfo = null; 2249 } 2250 } 2251 2252 public static final Creator<TaskThumbnail> CREATOR = new Creator<TaskThumbnail>() { 2253 public TaskThumbnail createFromParcel(Parcel source) { 2254 return new TaskThumbnail(source); 2255 } 2256 public TaskThumbnail[] newArray(int size) { 2257 return new TaskThumbnail[size]; 2258 } 2259 }; 2260 } 2261 2262 /** 2263 * Represents a task snapshot. 2264 * @hide 2265 */ 2266 public static class TaskSnapshot implements Parcelable { 2267 2268 private final GraphicBuffer mSnapshot; 2269 private final int mOrientation; 2270 private final Rect mContentInsets; 2271 private final boolean mReducedResolution; 2272 private final float mScale; 2273 2274 public TaskSnapshot(GraphicBuffer snapshot, int orientation, Rect contentInsets, 2275 boolean reducedResolution, float scale) { 2276 mSnapshot = snapshot; 2277 mOrientation = orientation; 2278 mContentInsets = new Rect(contentInsets); 2279 mReducedResolution = reducedResolution; 2280 mScale = scale; 2281 } 2282 2283 private TaskSnapshot(Parcel source) { 2284 mSnapshot = source.readParcelable(null /* classLoader */); 2285 mOrientation = source.readInt(); 2286 mContentInsets = source.readParcelable(null /* classLoader */); 2287 mReducedResolution = source.readBoolean(); 2288 mScale = source.readFloat(); 2289 } 2290 2291 /** 2292 * @return The graphic buffer representing the screenshot. 2293 */ 2294 public GraphicBuffer getSnapshot() { 2295 return mSnapshot; 2296 } 2297 2298 /** 2299 * @return The screen orientation the screenshot was taken in. 2300 */ 2301 public int getOrientation() { 2302 return mOrientation; 2303 } 2304 2305 /** 2306 * @return The system/content insets on the snapshot. These can be clipped off in order to 2307 * remove any areas behind system bars in the snapshot. 2308 */ 2309 public Rect getContentInsets() { 2310 return mContentInsets; 2311 } 2312 2313 /** 2314 * @return Whether this snapshot is a down-sampled version of the full resolution. 2315 */ 2316 public boolean isReducedResolution() { 2317 return mReducedResolution; 2318 } 2319 2320 /** 2321 * @return The scale this snapshot was taken in. 2322 */ 2323 public float getScale() { 2324 return mScale; 2325 } 2326 2327 @Override 2328 public int describeContents() { 2329 return 0; 2330 } 2331 2332 @Override 2333 public void writeToParcel(Parcel dest, int flags) { 2334 dest.writeParcelable(mSnapshot, 0); 2335 dest.writeInt(mOrientation); 2336 dest.writeParcelable(mContentInsets, 0); 2337 dest.writeBoolean(mReducedResolution); 2338 dest.writeFloat(mScale); 2339 } 2340 2341 @Override 2342 public String toString() { 2343 return "TaskSnapshot{mSnapshot=" + mSnapshot + " mOrientation=" + mOrientation 2344 + " mContentInsets=" + mContentInsets.toShortString() 2345 + " mReducedResolution=" + mReducedResolution + " mScale=" + mScale; 2346 } 2347 2348 public static final Creator<TaskSnapshot> CREATOR = new Creator<TaskSnapshot>() { 2349 public TaskSnapshot createFromParcel(Parcel source) { 2350 return new TaskSnapshot(source); 2351 } 2352 public TaskSnapshot[] newArray(int size) { 2353 return new TaskSnapshot[size]; 2354 } 2355 }; 2356 } 2357 2358 /** @hide */ 2359 public TaskThumbnail getTaskThumbnail(int id) throws SecurityException { 2360 try { 2361 return getService().getTaskThumbnail(id); 2362 } catch (RemoteException e) { 2363 throw e.rethrowFromSystemServer(); 2364 } 2365 } 2366 2367 /** @hide */ 2368 @IntDef(flag = true, prefix = { "MOVE_TASK_" }, value = { 2369 MOVE_TASK_WITH_HOME, 2370 MOVE_TASK_NO_USER_ACTION, 2371 }) 2372 @Retention(RetentionPolicy.SOURCE) 2373 public @interface MoveTaskFlags {} 2374 2375 /** 2376 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2377 * activity along with the task, so it is positioned immediately behind 2378 * the task. 2379 */ 2380 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2381 2382 /** 2383 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2384 * user-instigated action, so the current activity will not receive a 2385 * hint that the user is leaving. 2386 */ 2387 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2388 2389 /** 2390 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2391 * with a null options argument. 2392 * 2393 * @param taskId The identifier of the task to be moved, as found in 2394 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2395 * @param flags Additional operational flags. 2396 */ 2397 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2398 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags) { 2399 moveTaskToFront(taskId, flags, null); 2400 } 2401 2402 /** 2403 * Ask that the task associated with a given task ID be moved to the 2404 * front of the stack, so it is now visible to the user. 2405 * 2406 * @param taskId The identifier of the task to be moved, as found in 2407 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2408 * @param flags Additional operational flags. 2409 * @param options Additional options for the operation, either null or 2410 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2411 * Context.startActivity(Intent, Bundle)}. 2412 */ 2413 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2414 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags, Bundle options) { 2415 try { 2416 getService().moveTaskToFront(taskId, flags, options); 2417 } catch (RemoteException e) { 2418 throw e.rethrowFromSystemServer(); 2419 } 2420 } 2421 2422 /** 2423 * Information you can retrieve about a particular Service that is 2424 * currently running in the system. 2425 */ 2426 public static class RunningServiceInfo implements Parcelable { 2427 /** 2428 * The service component. 2429 */ 2430 public ComponentName service; 2431 2432 /** 2433 * If non-zero, this is the process the service is running in. 2434 */ 2435 public int pid; 2436 2437 /** 2438 * The UID that owns this service. 2439 */ 2440 public int uid; 2441 2442 /** 2443 * The name of the process this service runs in. 2444 */ 2445 public String process; 2446 2447 /** 2448 * Set to true if the service has asked to run as a foreground process. 2449 */ 2450 public boolean foreground; 2451 2452 /** 2453 * The time when the service was first made active, either by someone 2454 * starting or binding to it. This 2455 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2456 */ 2457 public long activeSince; 2458 2459 /** 2460 * Set to true if this service has been explicitly started. 2461 */ 2462 public boolean started; 2463 2464 /** 2465 * Number of clients connected to the service. 2466 */ 2467 public int clientCount; 2468 2469 /** 2470 * Number of times the service's process has crashed while the service 2471 * is running. 2472 */ 2473 public int crashCount; 2474 2475 /** 2476 * The time when there was last activity in the service (either 2477 * explicit requests to start it or clients binding to it). This 2478 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2479 */ 2480 public long lastActivityTime; 2481 2482 /** 2483 * If non-zero, this service is not currently running, but scheduled to 2484 * restart at the given time. 2485 */ 2486 public long restarting; 2487 2488 /** 2489 * Bit for {@link #flags}: set if this service has been 2490 * explicitly started. 2491 */ 2492 public static final int FLAG_STARTED = 1<<0; 2493 2494 /** 2495 * Bit for {@link #flags}: set if the service has asked to 2496 * run as a foreground process. 2497 */ 2498 public static final int FLAG_FOREGROUND = 1<<1; 2499 2500 /** 2501 * Bit for {@link #flags}: set if the service is running in a 2502 * core system process. 2503 */ 2504 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2505 2506 /** 2507 * Bit for {@link #flags}: set if the service is running in a 2508 * persistent process. 2509 */ 2510 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2511 2512 /** 2513 * Running flags. 2514 */ 2515 public int flags; 2516 2517 /** 2518 * For special services that are bound to by system code, this is 2519 * the package that holds the binding. 2520 */ 2521 public String clientPackage; 2522 2523 /** 2524 * For special services that are bound to by system code, this is 2525 * a string resource providing a user-visible label for who the 2526 * client is. 2527 */ 2528 public int clientLabel; 2529 2530 public RunningServiceInfo() { 2531 } 2532 2533 public int describeContents() { 2534 return 0; 2535 } 2536 2537 public void writeToParcel(Parcel dest, int flags) { 2538 ComponentName.writeToParcel(service, dest); 2539 dest.writeInt(pid); 2540 dest.writeInt(uid); 2541 dest.writeString(process); 2542 dest.writeInt(foreground ? 1 : 0); 2543 dest.writeLong(activeSince); 2544 dest.writeInt(started ? 1 : 0); 2545 dest.writeInt(clientCount); 2546 dest.writeInt(crashCount); 2547 dest.writeLong(lastActivityTime); 2548 dest.writeLong(restarting); 2549 dest.writeInt(this.flags); 2550 dest.writeString(clientPackage); 2551 dest.writeInt(clientLabel); 2552 } 2553 2554 public void readFromParcel(Parcel source) { 2555 service = ComponentName.readFromParcel(source); 2556 pid = source.readInt(); 2557 uid = source.readInt(); 2558 process = source.readString(); 2559 foreground = source.readInt() != 0; 2560 activeSince = source.readLong(); 2561 started = source.readInt() != 0; 2562 clientCount = source.readInt(); 2563 crashCount = source.readInt(); 2564 lastActivityTime = source.readLong(); 2565 restarting = source.readLong(); 2566 flags = source.readInt(); 2567 clientPackage = source.readString(); 2568 clientLabel = source.readInt(); 2569 } 2570 2571 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2572 public RunningServiceInfo createFromParcel(Parcel source) { 2573 return new RunningServiceInfo(source); 2574 } 2575 public RunningServiceInfo[] newArray(int size) { 2576 return new RunningServiceInfo[size]; 2577 } 2578 }; 2579 2580 private RunningServiceInfo(Parcel source) { 2581 readFromParcel(source); 2582 } 2583 } 2584 2585 /** 2586 * Return a list of the services that are currently running. 2587 * 2588 * <p><b>Note: this method is only intended for debugging or implementing 2589 * service management type user interfaces.</b></p> 2590 * 2591 * @deprecated As of {@link android.os.Build.VERSION_CODES#O}, this method 2592 * is no longer available to third party applications. For backwards compatibility, 2593 * it will still return the caller's own services. 2594 * 2595 * @param maxNum The maximum number of entries to return in the list. The 2596 * actual number returned may be smaller, depending on how many services 2597 * are running. 2598 * 2599 * @return Returns a list of RunningServiceInfo records describing each of 2600 * the running tasks. 2601 */ 2602 @Deprecated 2603 public List<RunningServiceInfo> getRunningServices(int maxNum) 2604 throws SecurityException { 2605 try { 2606 return getService() 2607 .getServices(maxNum, 0); 2608 } catch (RemoteException e) { 2609 throw e.rethrowFromSystemServer(); 2610 } 2611 } 2612 2613 /** 2614 * Returns a PendingIntent you can start to show a control panel for the 2615 * given running service. If the service does not have a control panel, 2616 * null is returned. 2617 */ 2618 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2619 throws SecurityException { 2620 try { 2621 return getService() 2622 .getRunningServiceControlPanel(service); 2623 } catch (RemoteException e) { 2624 throw e.rethrowFromSystemServer(); 2625 } 2626 } 2627 2628 /** 2629 * Information you can retrieve about the available memory through 2630 * {@link ActivityManager#getMemoryInfo}. 2631 */ 2632 public static class MemoryInfo implements Parcelable { 2633 /** 2634 * The available memory on the system. This number should not 2635 * be considered absolute: due to the nature of the kernel, a significant 2636 * portion of this memory is actually in use and needed for the overall 2637 * system to run well. 2638 */ 2639 public long availMem; 2640 2641 /** 2642 * The total memory accessible by the kernel. This is basically the 2643 * RAM size of the device, not including below-kernel fixed allocations 2644 * like DMA buffers, RAM for the baseband CPU, etc. 2645 */ 2646 public long totalMem; 2647 2648 /** 2649 * The threshold of {@link #availMem} at which we consider memory to be 2650 * low and start killing background services and other non-extraneous 2651 * processes. 2652 */ 2653 public long threshold; 2654 2655 /** 2656 * Set to true if the system considers itself to currently be in a low 2657 * memory situation. 2658 */ 2659 public boolean lowMemory; 2660 2661 /** @hide */ 2662 public long hiddenAppThreshold; 2663 /** @hide */ 2664 public long secondaryServerThreshold; 2665 /** @hide */ 2666 public long visibleAppThreshold; 2667 /** @hide */ 2668 public long foregroundAppThreshold; 2669 2670 public MemoryInfo() { 2671 } 2672 2673 public int describeContents() { 2674 return 0; 2675 } 2676 2677 public void writeToParcel(Parcel dest, int flags) { 2678 dest.writeLong(availMem); 2679 dest.writeLong(totalMem); 2680 dest.writeLong(threshold); 2681 dest.writeInt(lowMemory ? 1 : 0); 2682 dest.writeLong(hiddenAppThreshold); 2683 dest.writeLong(secondaryServerThreshold); 2684 dest.writeLong(visibleAppThreshold); 2685 dest.writeLong(foregroundAppThreshold); 2686 } 2687 2688 public void readFromParcel(Parcel source) { 2689 availMem = source.readLong(); 2690 totalMem = source.readLong(); 2691 threshold = source.readLong(); 2692 lowMemory = source.readInt() != 0; 2693 hiddenAppThreshold = source.readLong(); 2694 secondaryServerThreshold = source.readLong(); 2695 visibleAppThreshold = source.readLong(); 2696 foregroundAppThreshold = source.readLong(); 2697 } 2698 2699 public static final Creator<MemoryInfo> CREATOR 2700 = new Creator<MemoryInfo>() { 2701 public MemoryInfo createFromParcel(Parcel source) { 2702 return new MemoryInfo(source); 2703 } 2704 public MemoryInfo[] newArray(int size) { 2705 return new MemoryInfo[size]; 2706 } 2707 }; 2708 2709 private MemoryInfo(Parcel source) { 2710 readFromParcel(source); 2711 } 2712 } 2713 2714 /** 2715 * Return general information about the memory state of the system. This 2716 * can be used to help decide how to manage your own memory, though note 2717 * that polling is not recommended and 2718 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2719 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2720 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2721 * level of your process as needed, which gives a better hint for how to 2722 * manage its memory. 2723 */ 2724 public void getMemoryInfo(MemoryInfo outInfo) { 2725 try { 2726 getService().getMemoryInfo(outInfo); 2727 } catch (RemoteException e) { 2728 throw e.rethrowFromSystemServer(); 2729 } 2730 } 2731 2732 /** 2733 * Information you can retrieve about an ActivityStack in the system. 2734 * @hide 2735 */ 2736 public static class StackInfo implements Parcelable { 2737 public int stackId; 2738 public Rect bounds = new Rect(); 2739 public int[] taskIds; 2740 public String[] taskNames; 2741 public Rect[] taskBounds; 2742 public int[] taskUserIds; 2743 public ComponentName topActivity; 2744 public int displayId; 2745 public int userId; 2746 public boolean visible; 2747 // Index of the stack in the display's stack list, can be used for comparison of stack order 2748 public int position; 2749 2750 @Override 2751 public int describeContents() { 2752 return 0; 2753 } 2754 2755 @Override 2756 public void writeToParcel(Parcel dest, int flags) { 2757 dest.writeInt(stackId); 2758 dest.writeInt(bounds.left); 2759 dest.writeInt(bounds.top); 2760 dest.writeInt(bounds.right); 2761 dest.writeInt(bounds.bottom); 2762 dest.writeIntArray(taskIds); 2763 dest.writeStringArray(taskNames); 2764 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2765 dest.writeInt(boundsCount); 2766 for (int i = 0; i < boundsCount; i++) { 2767 dest.writeInt(taskBounds[i].left); 2768 dest.writeInt(taskBounds[i].top); 2769 dest.writeInt(taskBounds[i].right); 2770 dest.writeInt(taskBounds[i].bottom); 2771 } 2772 dest.writeIntArray(taskUserIds); 2773 dest.writeInt(displayId); 2774 dest.writeInt(userId); 2775 dest.writeInt(visible ? 1 : 0); 2776 dest.writeInt(position); 2777 if (topActivity != null) { 2778 dest.writeInt(1); 2779 topActivity.writeToParcel(dest, 0); 2780 } else { 2781 dest.writeInt(0); 2782 } 2783 } 2784 2785 public void readFromParcel(Parcel source) { 2786 stackId = source.readInt(); 2787 bounds = new Rect( 2788 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2789 taskIds = source.createIntArray(); 2790 taskNames = source.createStringArray(); 2791 final int boundsCount = source.readInt(); 2792 if (boundsCount > 0) { 2793 taskBounds = new Rect[boundsCount]; 2794 for (int i = 0; i < boundsCount; i++) { 2795 taskBounds[i] = new Rect(); 2796 taskBounds[i].set( 2797 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2798 } 2799 } else { 2800 taskBounds = null; 2801 } 2802 taskUserIds = source.createIntArray(); 2803 displayId = source.readInt(); 2804 userId = source.readInt(); 2805 visible = source.readInt() > 0; 2806 position = source.readInt(); 2807 if (source.readInt() > 0) { 2808 topActivity = ComponentName.readFromParcel(source); 2809 } 2810 } 2811 2812 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2813 @Override 2814 public StackInfo createFromParcel(Parcel source) { 2815 return new StackInfo(source); 2816 } 2817 @Override 2818 public StackInfo[] newArray(int size) { 2819 return new StackInfo[size]; 2820 } 2821 }; 2822 2823 public StackInfo() { 2824 } 2825 2826 private StackInfo(Parcel source) { 2827 readFromParcel(source); 2828 } 2829 2830 public String toString(String prefix) { 2831 StringBuilder sb = new StringBuilder(256); 2832 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2833 sb.append(" bounds="); sb.append(bounds.toShortString()); 2834 sb.append(" displayId="); sb.append(displayId); 2835 sb.append(" userId="); sb.append(userId); 2836 sb.append("\n"); 2837 prefix = prefix + " "; 2838 for (int i = 0; i < taskIds.length; ++i) { 2839 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2840 sb.append(": "); sb.append(taskNames[i]); 2841 if (taskBounds != null) { 2842 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2843 } 2844 sb.append(" userId=").append(taskUserIds[i]); 2845 sb.append(" visible=").append(visible); 2846 if (topActivity != null) { 2847 sb.append(" topActivity=").append(topActivity); 2848 } 2849 sb.append("\n"); 2850 } 2851 return sb.toString(); 2852 } 2853 2854 @Override 2855 public String toString() { 2856 return toString(""); 2857 } 2858 } 2859 2860 /** 2861 * @hide 2862 */ 2863 @RequiresPermission(anyOf={Manifest.permission.CLEAR_APP_USER_DATA, 2864 Manifest.permission.ACCESS_INSTANT_APPS}) 2865 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2866 try { 2867 return getService().clearApplicationUserData(packageName, 2868 observer, UserHandle.myUserId()); 2869 } catch (RemoteException e) { 2870 throw e.rethrowFromSystemServer(); 2871 } 2872 } 2873 2874 /** 2875 * Permits an application to erase its own data from disk. This is equivalent to 2876 * the user choosing to clear the app's data from within the device settings UI. It 2877 * erases all dynamic data associated with the app -- its private data and data in its 2878 * private area on external storage -- but does not remove the installed application 2879 * itself, nor any OBB files. 2880 * 2881 * @return {@code true} if the application successfully requested that the application's 2882 * data be erased; {@code false} otherwise. 2883 */ 2884 public boolean clearApplicationUserData() { 2885 return clearApplicationUserData(mContext.getPackageName(), null); 2886 } 2887 2888 2889 /** 2890 * Permits an application to get the persistent URI permissions granted to another. 2891 * 2892 * <p>Typically called by Settings. 2893 * 2894 * @param packageName application to look for the granted permissions 2895 * @return list of granted URI permissions 2896 * 2897 * @hide 2898 */ 2899 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2900 try { 2901 return getService().getGrantedUriPermissions(packageName, 2902 UserHandle.myUserId()); 2903 } catch (RemoteException e) { 2904 throw e.rethrowFromSystemServer(); 2905 } 2906 } 2907 2908 /** 2909 * Permits an application to clear the persistent URI permissions granted to another. 2910 * 2911 * <p>Typically called by Settings. 2912 * 2913 * @param packageName application to clear its granted permissions 2914 * 2915 * @hide 2916 */ 2917 public void clearGrantedUriPermissions(String packageName) { 2918 try { 2919 getService().clearGrantedUriPermissions(packageName, 2920 UserHandle.myUserId()); 2921 } catch (RemoteException e) { 2922 throw e.rethrowFromSystemServer(); 2923 } 2924 } 2925 2926 /** 2927 * Information you can retrieve about any processes that are in an error condition. 2928 */ 2929 public static class ProcessErrorStateInfo implements Parcelable { 2930 /** 2931 * Condition codes 2932 */ 2933 public static final int NO_ERROR = 0; 2934 public static final int CRASHED = 1; 2935 public static final int NOT_RESPONDING = 2; 2936 2937 /** 2938 * The condition that the process is in. 2939 */ 2940 public int condition; 2941 2942 /** 2943 * The process name in which the crash or error occurred. 2944 */ 2945 public String processName; 2946 2947 /** 2948 * The pid of this process; 0 if none 2949 */ 2950 public int pid; 2951 2952 /** 2953 * The kernel user-ID that has been assigned to this process; 2954 * currently this is not a unique ID (multiple applications can have 2955 * the same uid). 2956 */ 2957 public int uid; 2958 2959 /** 2960 * The activity name associated with the error, if known. May be null. 2961 */ 2962 public String tag; 2963 2964 /** 2965 * A short message describing the error condition. 2966 */ 2967 public String shortMsg; 2968 2969 /** 2970 * A long message describing the error condition. 2971 */ 2972 public String longMsg; 2973 2974 /** 2975 * The stack trace where the error originated. May be null. 2976 */ 2977 public String stackTrace; 2978 2979 /** 2980 * to be deprecated: This value will always be null. 2981 */ 2982 public byte[] crashData = null; 2983 2984 public ProcessErrorStateInfo() { 2985 } 2986 2987 @Override 2988 public int describeContents() { 2989 return 0; 2990 } 2991 2992 @Override 2993 public void writeToParcel(Parcel dest, int flags) { 2994 dest.writeInt(condition); 2995 dest.writeString(processName); 2996 dest.writeInt(pid); 2997 dest.writeInt(uid); 2998 dest.writeString(tag); 2999 dest.writeString(shortMsg); 3000 dest.writeString(longMsg); 3001 dest.writeString(stackTrace); 3002 } 3003 3004 public void readFromParcel(Parcel source) { 3005 condition = source.readInt(); 3006 processName = source.readString(); 3007 pid = source.readInt(); 3008 uid = source.readInt(); 3009 tag = source.readString(); 3010 shortMsg = source.readString(); 3011 longMsg = source.readString(); 3012 stackTrace = source.readString(); 3013 } 3014 3015 public static final Creator<ProcessErrorStateInfo> CREATOR = 3016 new Creator<ProcessErrorStateInfo>() { 3017 public ProcessErrorStateInfo createFromParcel(Parcel source) { 3018 return new ProcessErrorStateInfo(source); 3019 } 3020 public ProcessErrorStateInfo[] newArray(int size) { 3021 return new ProcessErrorStateInfo[size]; 3022 } 3023 }; 3024 3025 private ProcessErrorStateInfo(Parcel source) { 3026 readFromParcel(source); 3027 } 3028 } 3029 3030 /** 3031 * Returns a list of any processes that are currently in an error condition. The result 3032 * will be null if all processes are running properly at this time. 3033 * 3034 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 3035 * current error conditions (it will not return an empty list). This list ordering is not 3036 * specified. 3037 */ 3038 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 3039 try { 3040 return getService().getProcessesInErrorState(); 3041 } catch (RemoteException e) { 3042 throw e.rethrowFromSystemServer(); 3043 } 3044 } 3045 3046 /** 3047 * Information you can retrieve about a running process. 3048 */ 3049 public static class RunningAppProcessInfo implements Parcelable { 3050 /** 3051 * The name of the process that this object is associated with 3052 */ 3053 public String processName; 3054 3055 /** 3056 * The pid of this process; 0 if none 3057 */ 3058 public int pid; 3059 3060 /** 3061 * The user id of this process. 3062 */ 3063 public int uid; 3064 3065 /** 3066 * All packages that have been loaded into the process. 3067 */ 3068 public String pkgList[]; 3069 3070 /** 3071 * Constant for {@link #flags}: this is an app that is unable to 3072 * correctly save its state when going to the background, 3073 * so it can not be killed while in the background. 3074 * @hide 3075 */ 3076 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 3077 3078 /** 3079 * Constant for {@link #flags}: this process is associated with a 3080 * persistent system app. 3081 * @hide 3082 */ 3083 public static final int FLAG_PERSISTENT = 1<<1; 3084 3085 /** 3086 * Constant for {@link #flags}: this process is associated with a 3087 * persistent system app. 3088 * @hide 3089 */ 3090 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 3091 3092 /** 3093 * Flags of information. May be any of 3094 * {@link #FLAG_CANT_SAVE_STATE}. 3095 * @hide 3096 */ 3097 public int flags; 3098 3099 /** 3100 * Last memory trim level reported to the process: corresponds to 3101 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 3102 * ComponentCallbacks2.onTrimMemory(int)}. 3103 */ 3104 public int lastTrimLevel; 3105 3106 /** @hide */ 3107 @IntDef(prefix = { "IMPORTANCE_" }, value = { 3108 IMPORTANCE_FOREGROUND, 3109 IMPORTANCE_FOREGROUND_SERVICE, 3110 IMPORTANCE_TOP_SLEEPING, 3111 IMPORTANCE_VISIBLE, 3112 IMPORTANCE_PERCEPTIBLE, 3113 IMPORTANCE_CANT_SAVE_STATE, 3114 IMPORTANCE_SERVICE, 3115 IMPORTANCE_CACHED, 3116 IMPORTANCE_GONE, 3117 }) 3118 @Retention(RetentionPolicy.SOURCE) 3119 public @interface Importance {} 3120 3121 /** 3122 * Constant for {@link #importance}: This process is running the 3123 * foreground UI; that is, it is the thing currently at the top of the screen 3124 * that the user is interacting with. 3125 */ 3126 public static final int IMPORTANCE_FOREGROUND = 100; 3127 3128 /** 3129 * Constant for {@link #importance}: This process is running a foreground 3130 * service, for example to perform music playback even while the user is 3131 * not immediately in the app. This generally indicates that the process 3132 * is doing something the user actively cares about. 3133 */ 3134 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 3135 3136 /** 3137 * Constant for {@link #importance}: This process is running the foreground 3138 * UI, but the device is asleep so it is not visible to the user. This means 3139 * the user is not really aware of the process, because they can not see or 3140 * interact with it, but it is quite important because it what they expect to 3141 * return to once unlocking the device. 3142 */ 3143 public static final int IMPORTANCE_TOP_SLEEPING = 150; 3144 3145 /** 3146 * Constant for {@link #importance}: This process is running something 3147 * that is actively visible to the user, though not in the immediate 3148 * foreground. This may be running a window that is behind the current 3149 * foreground (so paused and with its state saved, not interacting with 3150 * the user, but visible to them to some degree); it may also be running 3151 * other services under the system's control that it inconsiders important. 3152 */ 3153 public static final int IMPORTANCE_VISIBLE = 200; 3154 3155 /** 3156 * Constant for {@link #importance}: {@link #IMPORTANCE_PERCEPTIBLE} had this wrong value 3157 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3158 * the value of {@link #IMPORTANCE_PERCEPTIBLE} has been fixed. 3159 * 3160 * <p>The system will return this value instead of {@link #IMPORTANCE_PERCEPTIBLE} 3161 * on Android versions below {@link Build.VERSION_CODES#O}. 3162 * 3163 * <p>On Android version {@link Build.VERSION_CODES#O} and later, this value will still be 3164 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 3165 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 3166 * the correct value {@link #IMPORTANCE_PERCEPTIBLE} will be returned. 3167 */ 3168 public static final int IMPORTANCE_PERCEPTIBLE_PRE_26 = 130; 3169 3170 /** 3171 * Constant for {@link #importance}: This process is not something the user 3172 * is directly aware of, but is otherwise perceptible to them to some degree. 3173 */ 3174 public static final int IMPORTANCE_PERCEPTIBLE = 230; 3175 3176 /** 3177 * Constant for {@link #importance}: {@link #IMPORTANCE_CANT_SAVE_STATE} had 3178 * this wrong value 3179 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3180 * the value of {@link #IMPORTANCE_CANT_SAVE_STATE} has been fixed. 3181 * 3182 * <p>The system will return this value instead of {@link #IMPORTANCE_CANT_SAVE_STATE} 3183 * on Android versions below {@link Build.VERSION_CODES#O}. 3184 * 3185 * <p>On Android version {@link Build.VERSION_CODES#O} after, this value will still be 3186 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 3187 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 3188 * the correct value {@link #IMPORTANCE_CANT_SAVE_STATE} will be returned. 3189 * 3190 * @hide 3191 */ 3192 public static final int IMPORTANCE_CANT_SAVE_STATE_PRE_26 = 170; 3193 3194 /** 3195 * Constant for {@link #importance}: This process is running an 3196 * application that can not save its state, and thus can't be killed 3197 * while in the background. 3198 * @hide 3199 */ 3200 public static final int IMPORTANCE_CANT_SAVE_STATE= 270; 3201 3202 /** 3203 * Constant for {@link #importance}: This process is contains services 3204 * that should remain running. These are background services apps have 3205 * started, not something the user is aware of, so they may be killed by 3206 * the system relatively freely (though it is generally desired that they 3207 * stay running as long as they want to). 3208 */ 3209 public static final int IMPORTANCE_SERVICE = 300; 3210 3211 /** 3212 * Constant for {@link #importance}: This process process contains 3213 * cached code that is expendable, not actively running any app components 3214 * we care about. 3215 */ 3216 public static final int IMPORTANCE_CACHED = 400; 3217 3218 /** 3219 * @deprecated Renamed to {@link #IMPORTANCE_CACHED}. 3220 */ 3221 public static final int IMPORTANCE_BACKGROUND = IMPORTANCE_CACHED; 3222 3223 /** 3224 * Constant for {@link #importance}: This process is empty of any 3225 * actively running code. 3226 * @deprecated This value is no longer reported, use {@link #IMPORTANCE_CACHED} instead. 3227 */ 3228 @Deprecated 3229 public static final int IMPORTANCE_EMPTY = 500; 3230 3231 /** 3232 * Constant for {@link #importance}: This process does not exist. 3233 */ 3234 public static final int IMPORTANCE_GONE = 1000; 3235 3236 /** 3237 * Convert a proc state to the correspondent IMPORTANCE_* constant. If the return value 3238 * will be passed to a client, use {@link #procStateToImportanceForClient}. 3239 * @hide 3240 */ 3241 public static @Importance int procStateToImportance(int procState) { 3242 if (procState == PROCESS_STATE_NONEXISTENT) { 3243 return IMPORTANCE_GONE; 3244 } else if (procState >= PROCESS_STATE_HOME) { 3245 return IMPORTANCE_CACHED; 3246 } else if (procState >= PROCESS_STATE_SERVICE) { 3247 return IMPORTANCE_SERVICE; 3248 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 3249 return IMPORTANCE_CANT_SAVE_STATE; 3250 } else if (procState >= PROCESS_STATE_TRANSIENT_BACKGROUND) { 3251 return IMPORTANCE_PERCEPTIBLE; 3252 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 3253 return IMPORTANCE_VISIBLE; 3254 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 3255 return IMPORTANCE_TOP_SLEEPING; 3256 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 3257 return IMPORTANCE_FOREGROUND_SERVICE; 3258 } else { 3259 return IMPORTANCE_FOREGROUND; 3260 } 3261 } 3262 3263 /** 3264 * Convert a proc state to the correspondent IMPORTANCE_* constant for a client represented 3265 * by a given {@link Context}, with converting {@link #IMPORTANCE_PERCEPTIBLE} 3266 * and {@link #IMPORTANCE_CANT_SAVE_STATE} to the corresponding "wrong" value if the 3267 * client's target SDK < {@link VERSION_CODES#O}. 3268 * @hide 3269 */ 3270 public static @Importance int procStateToImportanceForClient(int procState, 3271 Context clientContext) { 3272 return procStateToImportanceForTargetSdk(procState, 3273 clientContext.getApplicationInfo().targetSdkVersion); 3274 } 3275 3276 /** 3277 * See {@link #procStateToImportanceForClient}. 3278 * @hide 3279 */ 3280 public static @Importance int procStateToImportanceForTargetSdk(int procState, 3281 int targetSdkVersion) { 3282 final int importance = procStateToImportance(procState); 3283 3284 // For pre O apps, convert to the old, wrong values. 3285 if (targetSdkVersion < VERSION_CODES.O) { 3286 switch (importance) { 3287 case IMPORTANCE_PERCEPTIBLE: 3288 return IMPORTANCE_PERCEPTIBLE_PRE_26; 3289 case IMPORTANCE_CANT_SAVE_STATE: 3290 return IMPORTANCE_CANT_SAVE_STATE_PRE_26; 3291 } 3292 } 3293 return importance; 3294 } 3295 3296 /** @hide */ 3297 public static int importanceToProcState(@Importance int importance) { 3298 if (importance == IMPORTANCE_GONE) { 3299 return PROCESS_STATE_NONEXISTENT; 3300 } else if (importance >= IMPORTANCE_CACHED) { 3301 return PROCESS_STATE_HOME; 3302 } else if (importance >= IMPORTANCE_SERVICE) { 3303 return PROCESS_STATE_SERVICE; 3304 } else if (importance > IMPORTANCE_CANT_SAVE_STATE) { 3305 return PROCESS_STATE_HEAVY_WEIGHT; 3306 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 3307 return PROCESS_STATE_TRANSIENT_BACKGROUND; 3308 } else if (importance >= IMPORTANCE_VISIBLE) { 3309 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3310 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 3311 return PROCESS_STATE_TOP_SLEEPING; 3312 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 3313 return PROCESS_STATE_FOREGROUND_SERVICE; 3314 } else { 3315 return PROCESS_STATE_BOUND_FOREGROUND_SERVICE; 3316 } 3317 } 3318 3319 /** 3320 * The relative importance level that the system places on this process. 3321 * These constants are numbered so that "more important" values are 3322 * always smaller than "less important" values. 3323 */ 3324 public @Importance int importance; 3325 3326 /** 3327 * An additional ordering within a particular {@link #importance} 3328 * category, providing finer-grained information about the relative 3329 * utility of processes within a category. This number means nothing 3330 * except that a smaller values are more recently used (and thus 3331 * more important). Currently an LRU value is only maintained for 3332 * the {@link #IMPORTANCE_CACHED} category, though others may 3333 * be maintained in the future. 3334 */ 3335 public int lru; 3336 3337 /** 3338 * Constant for {@link #importanceReasonCode}: nothing special has 3339 * been specified for the reason for this level. 3340 */ 3341 public static final int REASON_UNKNOWN = 0; 3342 3343 /** 3344 * Constant for {@link #importanceReasonCode}: one of the application's 3345 * content providers is being used by another process. The pid of 3346 * the client process is in {@link #importanceReasonPid} and the 3347 * target provider in this process is in 3348 * {@link #importanceReasonComponent}. 3349 */ 3350 public static final int REASON_PROVIDER_IN_USE = 1; 3351 3352 /** 3353 * Constant for {@link #importanceReasonCode}: one of the application's 3354 * content providers is being used by another process. The pid of 3355 * the client process is in {@link #importanceReasonPid} and the 3356 * target provider in this process is in 3357 * {@link #importanceReasonComponent}. 3358 */ 3359 public static final int REASON_SERVICE_IN_USE = 2; 3360 3361 /** 3362 * The reason for {@link #importance}, if any. 3363 */ 3364 public int importanceReasonCode; 3365 3366 /** 3367 * For the specified values of {@link #importanceReasonCode}, this 3368 * is the process ID of the other process that is a client of this 3369 * process. This will be 0 if no other process is using this one. 3370 */ 3371 public int importanceReasonPid; 3372 3373 /** 3374 * For the specified values of {@link #importanceReasonCode}, this 3375 * is the name of the component that is being used in this process. 3376 */ 3377 public ComponentName importanceReasonComponent; 3378 3379 /** 3380 * When {@link #importanceReasonPid} is non-0, this is the importance 3381 * of the other pid. @hide 3382 */ 3383 public int importanceReasonImportance; 3384 3385 /** 3386 * Current process state, as per PROCESS_STATE_* constants. 3387 * @hide 3388 */ 3389 public int processState; 3390 3391 public RunningAppProcessInfo() { 3392 importance = IMPORTANCE_FOREGROUND; 3393 importanceReasonCode = REASON_UNKNOWN; 3394 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 3395 } 3396 3397 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 3398 processName = pProcessName; 3399 pid = pPid; 3400 pkgList = pArr; 3401 } 3402 3403 public int describeContents() { 3404 return 0; 3405 } 3406 3407 public void writeToParcel(Parcel dest, int flags) { 3408 dest.writeString(processName); 3409 dest.writeInt(pid); 3410 dest.writeInt(uid); 3411 dest.writeStringArray(pkgList); 3412 dest.writeInt(this.flags); 3413 dest.writeInt(lastTrimLevel); 3414 dest.writeInt(importance); 3415 dest.writeInt(lru); 3416 dest.writeInt(importanceReasonCode); 3417 dest.writeInt(importanceReasonPid); 3418 ComponentName.writeToParcel(importanceReasonComponent, dest); 3419 dest.writeInt(importanceReasonImportance); 3420 dest.writeInt(processState); 3421 } 3422 3423 public void readFromParcel(Parcel source) { 3424 processName = source.readString(); 3425 pid = source.readInt(); 3426 uid = source.readInt(); 3427 pkgList = source.readStringArray(); 3428 flags = source.readInt(); 3429 lastTrimLevel = source.readInt(); 3430 importance = source.readInt(); 3431 lru = source.readInt(); 3432 importanceReasonCode = source.readInt(); 3433 importanceReasonPid = source.readInt(); 3434 importanceReasonComponent = ComponentName.readFromParcel(source); 3435 importanceReasonImportance = source.readInt(); 3436 processState = source.readInt(); 3437 } 3438 3439 public static final Creator<RunningAppProcessInfo> CREATOR = 3440 new Creator<RunningAppProcessInfo>() { 3441 public RunningAppProcessInfo createFromParcel(Parcel source) { 3442 return new RunningAppProcessInfo(source); 3443 } 3444 public RunningAppProcessInfo[] newArray(int size) { 3445 return new RunningAppProcessInfo[size]; 3446 } 3447 }; 3448 3449 private RunningAppProcessInfo(Parcel source) { 3450 readFromParcel(source); 3451 } 3452 } 3453 3454 /** 3455 * Returns a list of application processes installed on external media 3456 * that are running on the device. 3457 * 3458 * <p><b>Note: this method is only intended for debugging or building 3459 * a user-facing process management UI.</b></p> 3460 * 3461 * @return Returns a list of ApplicationInfo records, or null if none 3462 * This list ordering is not specified. 3463 * @hide 3464 */ 3465 public List<ApplicationInfo> getRunningExternalApplications() { 3466 try { 3467 return getService().getRunningExternalApplications(); 3468 } catch (RemoteException e) { 3469 throw e.rethrowFromSystemServer(); 3470 } 3471 } 3472 3473 /** 3474 * Sets the memory trim mode for a process and schedules a memory trim operation. 3475 * 3476 * <p><b>Note: this method is only intended for testing framework.</b></p> 3477 * 3478 * @return Returns true if successful. 3479 * @hide 3480 */ 3481 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3482 try { 3483 return getService().setProcessMemoryTrimLevel(process, userId, 3484 level); 3485 } catch (RemoteException e) { 3486 throw e.rethrowFromSystemServer(); 3487 } 3488 } 3489 3490 /** 3491 * Returns a list of application processes that are running on the device. 3492 * 3493 * <p><b>Note: this method is only intended for debugging or building 3494 * a user-facing process management UI.</b></p> 3495 * 3496 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3497 * running processes (it will not return an empty list). This list ordering is not 3498 * specified. 3499 */ 3500 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3501 try { 3502 return getService().getRunningAppProcesses(); 3503 } catch (RemoteException e) { 3504 throw e.rethrowFromSystemServer(); 3505 } 3506 } 3507 3508 /** 3509 * Return the importance of a given package name, based on the processes that are 3510 * currently running. The return value is one of the importance constants defined 3511 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3512 * processes that this package has code running inside of. If there are no processes 3513 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3514 * @hide 3515 */ 3516 @SystemApi @TestApi 3517 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3518 public @RunningAppProcessInfo.Importance int getPackageImportance(String packageName) { 3519 try { 3520 int procState = getService().getPackageProcessState(packageName, 3521 mContext.getOpPackageName()); 3522 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3523 } catch (RemoteException e) { 3524 throw e.rethrowFromSystemServer(); 3525 } 3526 } 3527 3528 /** 3529 * Return the importance of a given uid, based on the processes that are 3530 * currently running. The return value is one of the importance constants defined 3531 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3532 * processes that this uid has running. If there are no processes 3533 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3534 * @hide 3535 */ 3536 @SystemApi @TestApi 3537 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3538 public @RunningAppProcessInfo.Importance int getUidImportance(int uid) { 3539 try { 3540 int procState = getService().getUidProcessState(uid, 3541 mContext.getOpPackageName()); 3542 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3543 } catch (RemoteException e) { 3544 throw e.rethrowFromSystemServer(); 3545 } 3546 } 3547 3548 /** 3549 * Callback to get reports about changes to the importance of a uid. Use with 3550 * {@link #addOnUidImportanceListener}. 3551 * @hide 3552 */ 3553 @SystemApi @TestApi 3554 public interface OnUidImportanceListener { 3555 /** 3556 * The importance if a given uid has changed. Will be one of the importance 3557 * values in {@link RunningAppProcessInfo}; 3558 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3559 * when the uid is no longer running at all. This callback will happen on a thread 3560 * from a thread pool, not the main UI thread. 3561 * @param uid The uid whose importance has changed. 3562 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3563 */ 3564 void onUidImportance(int uid, @RunningAppProcessInfo.Importance int importance); 3565 } 3566 3567 /** 3568 * Start monitoring changes to the imoportance of uids running in the system. 3569 * @param listener The listener callback that will receive change reports. 3570 * @param importanceCutpoint The level of importance in which the caller is interested 3571 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3572 * is used here, you will receive a call each time a uids importance transitions between 3573 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3574 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3575 * 3576 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3577 * permission to use this feature.</p> 3578 * 3579 * @throws IllegalArgumentException If the listener is already registered. 3580 * @throws SecurityException If the caller does not hold 3581 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3582 * @hide 3583 */ 3584 @SystemApi @TestApi 3585 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3586 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3587 @RunningAppProcessInfo.Importance int importanceCutpoint) { 3588 synchronized (this) { 3589 if (mImportanceListeners.containsKey(listener)) { 3590 throw new IllegalArgumentException("Listener already registered: " + listener); 3591 } 3592 // TODO: implement the cut point in the system process to avoid IPCs. 3593 UidObserver observer = new UidObserver(listener, mContext); 3594 try { 3595 getService().registerUidObserver(observer, 3596 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3597 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3598 mContext.getOpPackageName()); 3599 } catch (RemoteException e) { 3600 throw e.rethrowFromSystemServer(); 3601 } 3602 mImportanceListeners.put(listener, observer); 3603 } 3604 } 3605 3606 /** 3607 * Remove an importance listener that was previously registered with 3608 * {@link #addOnUidImportanceListener}. 3609 * 3610 * @throws IllegalArgumentException If the listener is not registered. 3611 * @hide 3612 */ 3613 @SystemApi @TestApi 3614 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3615 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3616 synchronized (this) { 3617 UidObserver observer = mImportanceListeners.remove(listener); 3618 if (observer == null) { 3619 throw new IllegalArgumentException("Listener not registered: " + listener); 3620 } 3621 try { 3622 getService().unregisterUidObserver(observer); 3623 } catch (RemoteException e) { 3624 throw e.rethrowFromSystemServer(); 3625 } 3626 } 3627 } 3628 3629 /** 3630 * Return global memory state information for the calling process. This 3631 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3632 * only fields that will be filled in are 3633 * {@link RunningAppProcessInfo#pid}, 3634 * {@link RunningAppProcessInfo#uid}, 3635 * {@link RunningAppProcessInfo#lastTrimLevel}, 3636 * {@link RunningAppProcessInfo#importance}, 3637 * {@link RunningAppProcessInfo#lru}, and 3638 * {@link RunningAppProcessInfo#importanceReasonCode}. 3639 */ 3640 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3641 try { 3642 getService().getMyMemoryState(outState); 3643 } catch (RemoteException e) { 3644 throw e.rethrowFromSystemServer(); 3645 } 3646 } 3647 3648 /** 3649 * Return information about the memory usage of one or more processes. 3650 * 3651 * <p><b>Note: this method is only intended for debugging or building 3652 * a user-facing process management UI.</b></p> 3653 * 3654 * @param pids The pids of the processes whose memory usage is to be 3655 * retrieved. 3656 * @return Returns an array of memory information, one for each 3657 * requested pid. 3658 */ 3659 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3660 try { 3661 return getService().getProcessMemoryInfo(pids); 3662 } catch (RemoteException e) { 3663 throw e.rethrowFromSystemServer(); 3664 } 3665 } 3666 3667 /** 3668 * @deprecated This is now just a wrapper for 3669 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3670 * is no longer available to applications because it allows them to 3671 * break other applications by removing their alarms, stopping their 3672 * services, etc. 3673 */ 3674 @Deprecated 3675 public void restartPackage(String packageName) { 3676 killBackgroundProcesses(packageName); 3677 } 3678 3679 /** 3680 * Have the system immediately kill all background processes associated 3681 * with the given package. This is the same as the kernel killing those 3682 * processes to reclaim memory; the system will take care of restarting 3683 * these processes in the future as needed. 3684 * 3685 * @param packageName The name of the package whose processes are to 3686 * be killed. 3687 */ 3688 @RequiresPermission(Manifest.permission.KILL_BACKGROUND_PROCESSES) 3689 public void killBackgroundProcesses(String packageName) { 3690 try { 3691 getService().killBackgroundProcesses(packageName, 3692 UserHandle.myUserId()); 3693 } catch (RemoteException e) { 3694 throw e.rethrowFromSystemServer(); 3695 } 3696 } 3697 3698 /** 3699 * Kills the specified UID. 3700 * @param uid The UID to kill. 3701 * @param reason The reason for the kill. 3702 * 3703 * @hide 3704 */ 3705 @SystemApi 3706 @RequiresPermission(Manifest.permission.KILL_UID) 3707 public void killUid(int uid, String reason) { 3708 try { 3709 getService().killUid(UserHandle.getAppId(uid), 3710 UserHandle.getUserId(uid), reason); 3711 } catch (RemoteException e) { 3712 throw e.rethrowFromSystemServer(); 3713 } 3714 } 3715 3716 /** 3717 * Have the system perform a force stop of everything associated with 3718 * the given application package. All processes that share its uid 3719 * will be killed, all services it has running stopped, all activities 3720 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3721 * broadcast will be sent, so that any of its registered alarms can 3722 * be stopped, notifications removed, etc. 3723 * 3724 * <p>You must hold the permission 3725 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3726 * call this method. 3727 * 3728 * @param packageName The name of the package to be stopped. 3729 * @param userId The user for which the running package is to be stopped. 3730 * 3731 * @hide This is not available to third party applications due to 3732 * it allowing them to break other applications by stopping their 3733 * services, removing their alarms, etc. 3734 */ 3735 public void forceStopPackageAsUser(String packageName, int userId) { 3736 try { 3737 getService().forceStopPackage(packageName, userId); 3738 } catch (RemoteException e) { 3739 throw e.rethrowFromSystemServer(); 3740 } 3741 } 3742 3743 /** 3744 * @see #forceStopPackageAsUser(String, int) 3745 * @hide 3746 */ 3747 @SystemApi 3748 @RequiresPermission(Manifest.permission.FORCE_STOP_PACKAGES) 3749 public void forceStopPackage(String packageName) { 3750 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3751 } 3752 3753 /** 3754 * Get the device configuration attributes. 3755 */ 3756 public ConfigurationInfo getDeviceConfigurationInfo() { 3757 try { 3758 return getService().getDeviceConfigurationInfo(); 3759 } catch (RemoteException e) { 3760 throw e.rethrowFromSystemServer(); 3761 } 3762 } 3763 3764 /** 3765 * Get the preferred density of icons for the launcher. This is used when 3766 * custom drawables are created (e.g., for shortcuts). 3767 * 3768 * @return density in terms of DPI 3769 */ 3770 public int getLauncherLargeIconDensity() { 3771 final Resources res = mContext.getResources(); 3772 final int density = res.getDisplayMetrics().densityDpi; 3773 final int sw = res.getConfiguration().smallestScreenWidthDp; 3774 3775 if (sw < 600) { 3776 // Smaller than approx 7" tablets, use the regular icon size. 3777 return density; 3778 } 3779 3780 switch (density) { 3781 case DisplayMetrics.DENSITY_LOW: 3782 return DisplayMetrics.DENSITY_MEDIUM; 3783 case DisplayMetrics.DENSITY_MEDIUM: 3784 return DisplayMetrics.DENSITY_HIGH; 3785 case DisplayMetrics.DENSITY_TV: 3786 return DisplayMetrics.DENSITY_XHIGH; 3787 case DisplayMetrics.DENSITY_HIGH: 3788 return DisplayMetrics.DENSITY_XHIGH; 3789 case DisplayMetrics.DENSITY_XHIGH: 3790 return DisplayMetrics.DENSITY_XXHIGH; 3791 case DisplayMetrics.DENSITY_XXHIGH: 3792 return DisplayMetrics.DENSITY_XHIGH * 2; 3793 default: 3794 // The density is some abnormal value. Return some other 3795 // abnormal value that is a reasonable scaling of it. 3796 return (int)((density*1.5f)+.5f); 3797 } 3798 } 3799 3800 /** 3801 * Get the preferred launcher icon size. This is used when custom drawables 3802 * are created (e.g., for shortcuts). 3803 * 3804 * @return dimensions of square icons in terms of pixels 3805 */ 3806 public int getLauncherLargeIconSize() { 3807 return getLauncherLargeIconSizeInner(mContext); 3808 } 3809 3810 static int getLauncherLargeIconSizeInner(Context context) { 3811 final Resources res = context.getResources(); 3812 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3813 final int sw = res.getConfiguration().smallestScreenWidthDp; 3814 3815 if (sw < 600) { 3816 // Smaller than approx 7" tablets, use the regular icon size. 3817 return size; 3818 } 3819 3820 final int density = res.getDisplayMetrics().densityDpi; 3821 3822 switch (density) { 3823 case DisplayMetrics.DENSITY_LOW: 3824 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3825 case DisplayMetrics.DENSITY_MEDIUM: 3826 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3827 case DisplayMetrics.DENSITY_TV: 3828 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3829 case DisplayMetrics.DENSITY_HIGH: 3830 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3831 case DisplayMetrics.DENSITY_XHIGH: 3832 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3833 case DisplayMetrics.DENSITY_XXHIGH: 3834 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3835 default: 3836 // The density is some abnormal value. Return some other 3837 // abnormal value that is a reasonable scaling of it. 3838 return (int)((size*1.5f) + .5f); 3839 } 3840 } 3841 3842 /** 3843 * Returns "true" if the user interface is currently being messed with 3844 * by a monkey. 3845 */ 3846 public static boolean isUserAMonkey() { 3847 try { 3848 return getService().isUserAMonkey(); 3849 } catch (RemoteException e) { 3850 throw e.rethrowFromSystemServer(); 3851 } 3852 } 3853 3854 /** 3855 * Returns "true" if device is running in a test harness. 3856 */ 3857 public static boolean isRunningInTestHarness() { 3858 return SystemProperties.getBoolean("ro.test_harness", false); 3859 } 3860 3861 /** 3862 * Returns the launch count of each installed package. 3863 * 3864 * @hide 3865 */ 3866 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3867 try { 3868 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3869 ServiceManager.getService("usagestats")); 3870 if (usageStatsService == null) { 3871 return new HashMap<String, Integer>(); 3872 } 3873 3874 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3875 ActivityThread.currentPackageName()); 3876 if (allPkgUsageStats == null) { 3877 return new HashMap<String, Integer>(); 3878 } 3879 3880 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3881 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3882 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3883 } 3884 3885 return launchCounts; 3886 } catch (RemoteException e) { 3887 Log.w(TAG, "Could not query launch counts", e); 3888 return new HashMap<String, Integer>(); 3889 } 3890 }*/ 3891 3892 /** @hide */ 3893 public static int checkComponentPermission(String permission, int uid, 3894 int owningUid, boolean exported) { 3895 // Root, system server get to do everything. 3896 final int appId = UserHandle.getAppId(uid); 3897 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3898 return PackageManager.PERMISSION_GRANTED; 3899 } 3900 // Isolated processes don't get any permissions. 3901 if (UserHandle.isIsolated(uid)) { 3902 return PackageManager.PERMISSION_DENIED; 3903 } 3904 // If there is a uid that owns whatever is being accessed, it has 3905 // blanket access to it regardless of the permissions it requires. 3906 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3907 return PackageManager.PERMISSION_GRANTED; 3908 } 3909 // If the target is not exported, then nobody else can get to it. 3910 if (!exported) { 3911 /* 3912 RuntimeException here = new RuntimeException("here"); 3913 here.fillInStackTrace(); 3914 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3915 here); 3916 */ 3917 return PackageManager.PERMISSION_DENIED; 3918 } 3919 if (permission == null) { 3920 return PackageManager.PERMISSION_GRANTED; 3921 } 3922 try { 3923 return AppGlobals.getPackageManager() 3924 .checkUidPermission(permission, uid); 3925 } catch (RemoteException e) { 3926 throw e.rethrowFromSystemServer(); 3927 } 3928 } 3929 3930 /** @hide */ 3931 public static int checkUidPermission(String permission, int uid) { 3932 try { 3933 return AppGlobals.getPackageManager() 3934 .checkUidPermission(permission, uid); 3935 } catch (RemoteException e) { 3936 throw e.rethrowFromSystemServer(); 3937 } 3938 } 3939 3940 /** 3941 * @hide 3942 * Helper for dealing with incoming user arguments to system service calls. 3943 * Takes care of checking permissions and converting USER_CURRENT to the 3944 * actual current user. 3945 * 3946 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3947 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3948 * @param userId The user id argument supplied by the caller -- this is the user 3949 * they want to run as. 3950 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3951 * to get a USER_ALL returned and deal with it correctly. If false, 3952 * an exception will be thrown if USER_ALL is supplied. 3953 * @param requireFull If true, the caller must hold 3954 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3955 * different user than their current process; otherwise they must hold 3956 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3957 * @param name Optional textual name of the incoming call; only for generating error messages. 3958 * @param callerPackage Optional package name of caller; only for error messages. 3959 * 3960 * @return Returns the user ID that the call should run as. Will always be a concrete 3961 * user number, unless <var>allowAll</var> is true in which case it could also be 3962 * USER_ALL. 3963 */ 3964 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3965 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3966 if (UserHandle.getUserId(callingUid) == userId) { 3967 return userId; 3968 } 3969 try { 3970 return getService().handleIncomingUser(callingPid, 3971 callingUid, userId, allowAll, requireFull, name, callerPackage); 3972 } catch (RemoteException e) { 3973 throw e.rethrowFromSystemServer(); 3974 } 3975 } 3976 3977 /** 3978 * Gets the userId of the current foreground user. Requires system permissions. 3979 * @hide 3980 */ 3981 @SystemApi 3982 @RequiresPermission(anyOf = { 3983 "android.permission.INTERACT_ACROSS_USERS", 3984 "android.permission.INTERACT_ACROSS_USERS_FULL" 3985 }) 3986 public static int getCurrentUser() { 3987 UserInfo ui; 3988 try { 3989 ui = getService().getCurrentUser(); 3990 return ui != null ? ui.id : 0; 3991 } catch (RemoteException e) { 3992 throw e.rethrowFromSystemServer(); 3993 } 3994 } 3995 3996 /** 3997 * @param userid the user's id. Zero indicates the default user. 3998 * @hide 3999 */ 4000 public boolean switchUser(int userid) { 4001 try { 4002 return getService().switchUser(userid); 4003 } catch (RemoteException e) { 4004 throw e.rethrowFromSystemServer(); 4005 } 4006 } 4007 4008 /** 4009 * Logs out current current foreground user by switching to the system user and stopping the 4010 * user being switched from. 4011 * @hide 4012 */ 4013 public static void logoutCurrentUser() { 4014 int currentUser = ActivityManager.getCurrentUser(); 4015 if (currentUser != UserHandle.USER_SYSTEM) { 4016 try { 4017 getService().switchUser(UserHandle.USER_SYSTEM); 4018 getService().stopUser(currentUser, /* force= */ false, null); 4019 } catch (RemoteException e) { 4020 e.rethrowFromSystemServer(); 4021 } 4022 } 4023 } 4024 4025 /** {@hide} */ 4026 public static final int FLAG_OR_STOPPED = 1 << 0; 4027 /** {@hide} */ 4028 public static final int FLAG_AND_LOCKED = 1 << 1; 4029 /** {@hide} */ 4030 public static final int FLAG_AND_UNLOCKED = 1 << 2; 4031 /** {@hide} */ 4032 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 4033 4034 /** 4035 * Return whether the given user is actively running. This means that 4036 * the user is in the "started" state, not "stopped" -- it is currently 4037 * allowed to run code through scheduled alarms, receiving broadcasts, 4038 * etc. A started user may be either the current foreground user or a 4039 * background user; the result here does not distinguish between the two. 4040 * @param userId the user's id. Zero indicates the default user. 4041 * @hide 4042 */ 4043 public boolean isUserRunning(int userId) { 4044 try { 4045 return getService().isUserRunning(userId, 0); 4046 } catch (RemoteException e) { 4047 throw e.rethrowFromSystemServer(); 4048 } 4049 } 4050 4051 /** {@hide} */ 4052 public boolean isVrModePackageEnabled(ComponentName component) { 4053 try { 4054 return getService().isVrModePackageEnabled(component); 4055 } catch (RemoteException e) { 4056 throw e.rethrowFromSystemServer(); 4057 } 4058 } 4059 4060 /** 4061 * Perform a system dump of various state associated with the given application 4062 * package name. This call blocks while the dump is being performed, so should 4063 * not be done on a UI thread. The data will be written to the given file 4064 * descriptor as text. 4065 * @param fd The file descriptor that the dump should be written to. The file 4066 * descriptor is <em>not</em> closed by this function; the caller continues to 4067 * own it. 4068 * @param packageName The name of the package that is to be dumped. 4069 */ 4070 @RequiresPermission(Manifest.permission.DUMP) 4071 public void dumpPackageState(FileDescriptor fd, String packageName) { 4072 dumpPackageStateStatic(fd, packageName); 4073 } 4074 4075 /** 4076 * @hide 4077 */ 4078 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 4079 FileOutputStream fout = new FileOutputStream(fd); 4080 PrintWriter pw = new FastPrintWriter(fout); 4081 dumpService(pw, fd, "package", new String[] { packageName }); 4082 pw.println(); 4083 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 4084 "-a", "package", packageName }); 4085 pw.println(); 4086 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 4087 pw.println(); 4088 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 4089 pw.println(); 4090 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 4091 pw.println(); 4092 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 4093 pw.flush(); 4094 } 4095 4096 /** 4097 * @hide 4098 */ 4099 public static boolean isSystemReady() { 4100 if (!sSystemReady) { 4101 if (ActivityThread.isSystem()) { 4102 sSystemReady = 4103 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 4104 } else { 4105 // Since this is being called from outside system server, system should be 4106 // ready by now. 4107 sSystemReady = true; 4108 } 4109 } 4110 return sSystemReady; 4111 } 4112 4113 /** 4114 * @hide 4115 */ 4116 public static void broadcastStickyIntent(Intent intent, int userId) { 4117 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 4118 } 4119 4120 /** 4121 * Convenience for sending a sticky broadcast. For internal use only. 4122 * 4123 * @hide 4124 */ 4125 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 4126 try { 4127 getService().broadcastIntent( 4128 null, intent, null, null, Activity.RESULT_OK, null, null, 4129 null /*permission*/, appOp, null, false, true, userId); 4130 } catch (RemoteException ex) { 4131 } 4132 } 4133 4134 /** 4135 * @hide 4136 */ 4137 public static void noteWakeupAlarm(PendingIntent ps, int sourceUid, String sourcePkg, 4138 String tag) { 4139 try { 4140 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, 4141 sourceUid, sourcePkg, tag); 4142 } catch (RemoteException ex) { 4143 } 4144 } 4145 4146 /** 4147 * @hide 4148 */ 4149 public static void noteAlarmStart(PendingIntent ps, int sourceUid, String tag) { 4150 try { 4151 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4152 } catch (RemoteException ex) { 4153 } 4154 } 4155 4156 /** 4157 * @hide 4158 */ 4159 public static void noteAlarmFinish(PendingIntent ps, int sourceUid, String tag) { 4160 try { 4161 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4162 } catch (RemoteException ex) { 4163 } 4164 } 4165 4166 /** 4167 * @hide 4168 */ 4169 public static IActivityManager getService() { 4170 return IActivityManagerSingleton.get(); 4171 } 4172 4173 private static final Singleton<IActivityManager> IActivityManagerSingleton = 4174 new Singleton<IActivityManager>() { 4175 @Override 4176 protected IActivityManager create() { 4177 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 4178 final IActivityManager am = IActivityManager.Stub.asInterface(b); 4179 return am; 4180 } 4181 }; 4182 4183 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 4184 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 4185 IBinder service = ServiceManager.checkService(name); 4186 if (service == null) { 4187 pw.println(" (Service not found)"); 4188 return; 4189 } 4190 TransferPipe tp = null; 4191 try { 4192 pw.flush(); 4193 tp = new TransferPipe(); 4194 tp.setBufferPrefix(" "); 4195 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 4196 tp.go(fd, 10000); 4197 } catch (Throwable e) { 4198 if (tp != null) { 4199 tp.kill(); 4200 } 4201 pw.println("Failure dumping service:"); 4202 e.printStackTrace(pw); 4203 } 4204 } 4205 4206 /** 4207 * Request that the system start watching for the calling process to exceed a pss 4208 * size as given here. Once called, the system will look for any occasions where it 4209 * sees the associated process with a larger pss size and, when this happens, automatically 4210 * pull a heap dump from it and allow the user to share the data. Note that this request 4211 * continues running even if the process is killed and restarted. To remove the watch, 4212 * use {@link #clearWatchHeapLimit()}. 4213 * 4214 * <p>This API only work if the calling process has been marked as 4215 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 4216 * (userdebug or eng) build.</p> 4217 * 4218 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 4219 * handle heap limit reports themselves.</p> 4220 * 4221 * @param pssSize The size in bytes to set the limit at. 4222 */ 4223 public void setWatchHeapLimit(long pssSize) { 4224 try { 4225 getService().setDumpHeapDebugLimit(null, 0, pssSize, 4226 mContext.getPackageName()); 4227 } catch (RemoteException e) { 4228 throw e.rethrowFromSystemServer(); 4229 } 4230 } 4231 4232 /** 4233 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 4234 * If your package has an activity handling this action, it will be launched with the 4235 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 4236 * match the activty must support this action and a MIME type of "*/*". 4237 */ 4238 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 4239 4240 /** 4241 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 4242 */ 4243 public void clearWatchHeapLimit() { 4244 try { 4245 getService().setDumpHeapDebugLimit(null, 0, 0, null); 4246 } catch (RemoteException e) { 4247 throw e.rethrowFromSystemServer(); 4248 } 4249 } 4250 4251 /** 4252 * Return whether currently in lock task mode. When in this mode 4253 * no new tasks can be created or switched to. 4254 * 4255 * @see Activity#startLockTask() 4256 * 4257 * @deprecated Use {@link #getLockTaskModeState} instead. 4258 */ 4259 @Deprecated 4260 public boolean isInLockTaskMode() { 4261 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 4262 } 4263 4264 /** 4265 * Return the current state of task locking. The three possible outcomes 4266 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 4267 * and {@link #LOCK_TASK_MODE_PINNED}. 4268 * 4269 * @see Activity#startLockTask() 4270 */ 4271 public int getLockTaskModeState() { 4272 try { 4273 return getService().getLockTaskModeState(); 4274 } catch (RemoteException e) { 4275 throw e.rethrowFromSystemServer(); 4276 } 4277 } 4278 4279 /** 4280 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 4281 * thread can be a VR thread in a process at a time, and that thread may be subject to 4282 * restrictions on the amount of time it can run. 4283 * 4284 * If persistent VR mode is set, whatever thread has been granted aggressive scheduling via this 4285 * method will return to normal operation, and calling this method will do nothing while 4286 * persistent VR mode is enabled. 4287 * 4288 * To reset the VR thread for an application, a tid of 0 can be passed. 4289 * 4290 * @see android.os.Process#myTid() 4291 * @param tid tid of the VR thread 4292 */ 4293 public static void setVrThread(int tid) { 4294 try { 4295 getService().setVrThread(tid); 4296 } catch (RemoteException e) { 4297 // pass 4298 } 4299 } 4300 4301 /** 4302 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads that persist 4303 * beyond a single process. Only one thread can be a 4304 * persistent VR thread at a time, and that thread may be subject to restrictions on the amount 4305 * of time it can run. Calling this method will disable aggressive scheduling for non-persistent 4306 * VR threads set via {@link #setVrThread}. If persistent VR mode is disabled then the 4307 * persistent VR thread loses its new scheduling priority; this method must be called again to 4308 * set the persistent thread. 4309 * 4310 * To reset the persistent VR thread, a tid of 0 can be passed. 4311 * 4312 * @see android.os.Process#myTid() 4313 * @param tid tid of the VR thread 4314 * @hide 4315 */ 4316 @RequiresPermission(Manifest.permission.RESTRICTED_VR_ACCESS) 4317 public static void setPersistentVrThread(int tid) { 4318 try { 4319 getService().setPersistentVrThread(tid); 4320 } catch (RemoteException e) { 4321 // pass 4322 } 4323 } 4324 4325 /** 4326 * The AppTask allows you to manage your own application's tasks. 4327 * See {@link android.app.ActivityManager#getAppTasks()} 4328 */ 4329 public static class AppTask { 4330 private IAppTask mAppTaskImpl; 4331 4332 /** @hide */ 4333 public AppTask(IAppTask task) { 4334 mAppTaskImpl = task; 4335 } 4336 4337 /** 4338 * Finishes all activities in this task and removes it from the recent tasks list. 4339 */ 4340 public void finishAndRemoveTask() { 4341 try { 4342 mAppTaskImpl.finishAndRemoveTask(); 4343 } catch (RemoteException e) { 4344 throw e.rethrowFromSystemServer(); 4345 } 4346 } 4347 4348 /** 4349 * Get the RecentTaskInfo associated with this task. 4350 * 4351 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 4352 */ 4353 public RecentTaskInfo getTaskInfo() { 4354 try { 4355 return mAppTaskImpl.getTaskInfo(); 4356 } catch (RemoteException e) { 4357 throw e.rethrowFromSystemServer(); 4358 } 4359 } 4360 4361 /** 4362 * Bring this task to the foreground. If it contains activities, they will be 4363 * brought to the foreground with it and their instances re-created if needed. 4364 * If it doesn't contain activities, the root activity of the task will be 4365 * re-launched. 4366 */ 4367 public void moveToFront() { 4368 try { 4369 mAppTaskImpl.moveToFront(); 4370 } catch (RemoteException e) { 4371 throw e.rethrowFromSystemServer(); 4372 } 4373 } 4374 4375 /** 4376 * Start an activity in this task. Brings the task to the foreground. If this task 4377 * is not currently active (that is, its id < 0), then a new activity for the given 4378 * Intent will be launched as the root of the task and the task brought to the 4379 * foreground. Otherwise, if this task is currently active and the Intent does not specify 4380 * an activity to launch in a new task, then a new activity for the given Intent will 4381 * be launched on top of the task and the task brought to the foreground. If this 4382 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 4383 * or would otherwise be launched in to a new task, then the activity not launched but 4384 * this task be brought to the foreground and a new intent delivered to the top 4385 * activity if appropriate. 4386 * 4387 * <p>In other words, you generally want to use an Intent here that does not specify 4388 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 4389 * and let the system do the right thing.</p> 4390 * 4391 * @param intent The Intent describing the new activity to be launched on the task. 4392 * @param options Optional launch options. 4393 * 4394 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 4395 */ 4396 public void startActivity(Context context, Intent intent, Bundle options) { 4397 ActivityThread thread = ActivityThread.currentActivityThread(); 4398 thread.getInstrumentation().execStartActivityFromAppTask(context, 4399 thread.getApplicationThread(), mAppTaskImpl, intent, options); 4400 } 4401 4402 /** 4403 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 4404 * Intent of this AppTask. 4405 * 4406 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 4407 * be set; otherwise, it will be cleared. 4408 */ 4409 public void setExcludeFromRecents(boolean exclude) { 4410 try { 4411 mAppTaskImpl.setExcludeFromRecents(exclude); 4412 } catch (RemoteException e) { 4413 throw e.rethrowFromSystemServer(); 4414 } 4415 } 4416 } 4417} 4418