ActivityManager.java revision ddc1cb2c15549ed23dce9d416680a009fa6ae23c
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.app; 18 19import android.Manifest; 20import android.annotation.NonNull; 21import android.annotation.Nullable; 22import android.annotation.RequiresPermission; 23import android.annotation.SystemApi; 24import android.graphics.Canvas; 25import android.graphics.Matrix; 26import android.graphics.Point; 27import android.os.BatteryStats; 28import android.os.IBinder; 29import android.os.ParcelFileDescriptor; 30 31import android.util.Log; 32import com.android.internal.app.ProcessStats; 33import com.android.internal.os.TransferPipe; 34import com.android.internal.util.FastPrintWriter; 35 36import android.content.ComponentName; 37import android.content.Context; 38import android.content.Intent; 39import android.content.pm.ApplicationInfo; 40import android.content.pm.ConfigurationInfo; 41import android.content.pm.IPackageDataObserver; 42import android.content.pm.PackageManager; 43import android.content.pm.UserInfo; 44import android.content.res.Resources; 45import android.graphics.Bitmap; 46import android.graphics.Color; 47import android.graphics.Rect; 48import android.os.Bundle; 49import android.os.Debug; 50import android.os.Handler; 51import android.os.Parcel; 52import android.os.Parcelable; 53import android.os.Process; 54import android.os.RemoteException; 55import android.os.ServiceManager; 56import android.os.SystemProperties; 57import android.os.UserHandle; 58import android.text.TextUtils; 59import android.util.DisplayMetrics; 60import android.util.Size; 61import android.util.Slog; 62import org.xmlpull.v1.XmlSerializer; 63 64import java.io.FileDescriptor; 65import java.io.FileOutputStream; 66import java.io.IOException; 67import java.io.PrintWriter; 68import java.util.ArrayList; 69import java.util.List; 70 71/** 72 * Interact with the overall activities running in the system. 73 */ 74public class ActivityManager { 75 private static String TAG = "ActivityManager"; 76 private static boolean localLOGV = false; 77 78 private static int gMaxRecentTasks = -1; 79 80 private final Context mContext; 81 private final Handler mHandler; 82 83 /** 84 * <a href="{@docRoot}guide/topics/manifest/meta-data-element.html">{@code 85 * <meta-data>}</a> name for a 'home' Activity that declares a package that is to be 86 * uninstalled in lieu of the declaring one. The package named here must be 87 * signed with the same certificate as the one declaring the {@code <meta-data>}. 88 */ 89 public static final String META_HOME_ALTERNATE = "android.app.home.alternate"; 90 91 /** 92 * Result for IActivityManager.startActivity: trying to start a background user 93 * activity that shouldn't be displayed for all users. 94 * @hide 95 */ 96 public static final int START_NOT_CURRENT_USER_ACTIVITY = -8; 97 98 /** 99 * Result for IActivityManager.startActivity: trying to start an activity under voice 100 * control when that activity does not support the VOICE category. 101 * @hide 102 */ 103 public static final int START_NOT_VOICE_COMPATIBLE = -7; 104 105 /** 106 * Result for IActivityManager.startActivity: an error where the 107 * start had to be canceled. 108 * @hide 109 */ 110 public static final int START_CANCELED = -6; 111 112 /** 113 * Result for IActivityManager.startActivity: an error where the 114 * thing being started is not an activity. 115 * @hide 116 */ 117 public static final int START_NOT_ACTIVITY = -5; 118 119 /** 120 * Result for IActivityManager.startActivity: an error where the 121 * caller does not have permission to start the activity. 122 * @hide 123 */ 124 public static final int START_PERMISSION_DENIED = -4; 125 126 /** 127 * Result for IActivityManager.startActivity: an error where the 128 * caller has requested both to forward a result and to receive 129 * a result. 130 * @hide 131 */ 132 public static final int START_FORWARD_AND_REQUEST_CONFLICT = -3; 133 134 /** 135 * Result for IActivityManager.startActivity: an error where the 136 * requested class is not found. 137 * @hide 138 */ 139 public static final int START_CLASS_NOT_FOUND = -2; 140 141 /** 142 * Result for IActivityManager.startActivity: an error where the 143 * given Intent could not be resolved to an activity. 144 * @hide 145 */ 146 public static final int START_INTENT_NOT_RESOLVED = -1; 147 148 /** 149 * Result for IActivityManaqer.startActivity: the activity was started 150 * successfully as normal. 151 * @hide 152 */ 153 public static final int START_SUCCESS = 0; 154 155 /** 156 * Result for IActivityManaqer.startActivity: the caller asked that the Intent not 157 * be executed if it is the recipient, and that is indeed the case. 158 * @hide 159 */ 160 public static final int START_RETURN_INTENT_TO_CALLER = 1; 161 162 /** 163 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 164 * a task was simply brought to the foreground. 165 * @hide 166 */ 167 public static final int START_TASK_TO_FRONT = 2; 168 169 /** 170 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 171 * the given Intent was given to the existing top activity. 172 * @hide 173 */ 174 public static final int START_DELIVERED_TO_TOP = 3; 175 176 /** 177 * Result for IActivityManaqer.startActivity: request was canceled because 178 * app switches are temporarily canceled to ensure the user's last request 179 * (such as pressing home) is performed. 180 * @hide 181 */ 182 public static final int START_SWITCHES_CANCELED = 4; 183 184 /** 185 * Result for IActivityManaqer.startActivity: a new activity was attempted to be started 186 * while in Lock Task Mode. 187 * @hide 188 */ 189 public static final int START_RETURN_LOCK_TASK_MODE_VIOLATION = 5; 190 191 /** 192 * Flag for IActivityManaqer.startActivity: do special start mode where 193 * a new activity is launched only if it is needed. 194 * @hide 195 */ 196 public static final int START_FLAG_ONLY_IF_NEEDED = 1<<0; 197 198 /** 199 * Flag for IActivityManaqer.startActivity: launch the app for 200 * debugging. 201 * @hide 202 */ 203 public static final int START_FLAG_DEBUG = 1<<1; 204 205 /** 206 * Flag for IActivityManaqer.startActivity: launch the app for 207 * OpenGL tracing. 208 * @hide 209 */ 210 public static final int START_FLAG_OPENGL_TRACES = 1<<2; 211 212 /** 213 * Flag for IActivityManaqer.startActivity: launch the app for 214 * allocation tracking. 215 * @hide 216 */ 217 public static final int START_FLAG_TRACK_ALLOCATION = 1<<3; 218 219 /** 220 * Result for IActivityManaqer.broadcastIntent: success! 221 * @hide 222 */ 223 public static final int BROADCAST_SUCCESS = 0; 224 225 /** 226 * Result for IActivityManaqer.broadcastIntent: attempt to broadcast 227 * a sticky intent without appropriate permission. 228 * @hide 229 */ 230 public static final int BROADCAST_STICKY_CANT_HAVE_PERMISSION = -1; 231 232 /** 233 * Result for IActivityManager.broadcastIntent: trying to send a broadcast 234 * to a stopped user. Fail. 235 * @hide 236 */ 237 public static final int BROADCAST_FAILED_USER_STOPPED = -2; 238 239 /** 240 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 241 * for a sendBroadcast operation. 242 * @hide 243 */ 244 public static final int INTENT_SENDER_BROADCAST = 1; 245 246 /** 247 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 248 * for a startActivity operation. 249 * @hide 250 */ 251 public static final int INTENT_SENDER_ACTIVITY = 2; 252 253 /** 254 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 255 * for an activity result operation. 256 * @hide 257 */ 258 public static final int INTENT_SENDER_ACTIVITY_RESULT = 3; 259 260 /** 261 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 262 * for a startService operation. 263 * @hide 264 */ 265 public static final int INTENT_SENDER_SERVICE = 4; 266 267 /** @hide User operation call: success! */ 268 public static final int USER_OP_SUCCESS = 0; 269 270 /** @hide User operation call: given user id is not known. */ 271 public static final int USER_OP_UNKNOWN_USER = -1; 272 273 /** @hide User operation call: given user id is the current user, can't be stopped. */ 274 public static final int USER_OP_IS_CURRENT = -2; 275 276 /** @hide Process does not exist. */ 277 public static final int PROCESS_STATE_NONEXISTENT = -1; 278 279 /** @hide Process is a persistent system process. */ 280 public static final int PROCESS_STATE_PERSISTENT = 0; 281 282 /** @hide Process is a persistent system process and is doing UI. */ 283 public static final int PROCESS_STATE_PERSISTENT_UI = 1; 284 285 /** @hide Process is hosting the current top activities. Note that this covers 286 * all activities that are visible to the user. */ 287 public static final int PROCESS_STATE_TOP = 2; 288 289 /** @hide Process is hosting a foreground service due to a system binding. */ 290 public static final int PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 3; 291 292 /** @hide Process is hosting a foreground service. */ 293 public static final int PROCESS_STATE_FOREGROUND_SERVICE = 4; 294 295 /** @hide Same as {@link #PROCESS_STATE_TOP} but while device is sleeping. */ 296 public static final int PROCESS_STATE_TOP_SLEEPING = 5; 297 298 /** @hide Process is important to the user, and something they are aware of. */ 299 public static final int PROCESS_STATE_IMPORTANT_FOREGROUND = 6; 300 301 /** @hide Process is important to the user, but not something they are aware of. */ 302 public static final int PROCESS_STATE_IMPORTANT_BACKGROUND = 7; 303 304 /** @hide Process is in the background running a backup/restore operation. */ 305 public static final int PROCESS_STATE_BACKUP = 8; 306 307 /** @hide Process is in the background, but it can't restore its state so we want 308 * to try to avoid killing it. */ 309 public static final int PROCESS_STATE_HEAVY_WEIGHT = 9; 310 311 /** @hide Process is in the background running a service. Unlike oom_adj, this level 312 * is used for both the normal running in background state and the executing 313 * operations state. */ 314 public static final int PROCESS_STATE_SERVICE = 10; 315 316 /** @hide Process is in the background running a receiver. Note that from the 317 * perspective of oom_adj receivers run at a higher foreground level, but for our 318 * prioritization here that is not necessary and putting them below services means 319 * many fewer changes in some process states as they receive broadcasts. */ 320 public static final int PROCESS_STATE_RECEIVER = 11; 321 322 /** @hide Process is in the background but hosts the home activity. */ 323 public static final int PROCESS_STATE_HOME = 12; 324 325 /** @hide Process is in the background but hosts the last shown activity. */ 326 public static final int PROCESS_STATE_LAST_ACTIVITY = 13; 327 328 /** @hide Process is being cached for later use and contains activities. */ 329 public static final int PROCESS_STATE_CACHED_ACTIVITY = 14; 330 331 /** @hide Process is being cached for later use and is a client of another cached 332 * process that contains activities. */ 333 public static final int PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 15; 334 335 /** @hide Process is being cached for later use and is empty. */ 336 public static final int PROCESS_STATE_CACHED_EMPTY = 16; 337 338 /** @hide requestType for assist context: only basic information. */ 339 public static final int ASSIST_CONTEXT_BASIC = 0; 340 341 /** @hide requestType for assist context: generate full AssistStructure. */ 342 public static final int ASSIST_CONTEXT_FULL = 1; 343 344 /** 345 * Lock task mode is not active. 346 */ 347 public static final int LOCK_TASK_MODE_NONE = 0; 348 349 /** 350 * Full lock task mode is active. 351 */ 352 public static final int LOCK_TASK_MODE_LOCKED = 1; 353 354 /** 355 * App pinning mode is active. 356 */ 357 public static final int LOCK_TASK_MODE_PINNED = 2; 358 359 Point mAppTaskThumbnailSize; 360 361 /*package*/ ActivityManager(Context context, Handler handler) { 362 mContext = context; 363 mHandler = handler; 364 } 365 366 /** 367 * Screen compatibility mode: the application most always run in 368 * compatibility mode. 369 * @hide 370 */ 371 public static final int COMPAT_MODE_ALWAYS = -1; 372 373 /** 374 * Screen compatibility mode: the application can never run in 375 * compatibility mode. 376 * @hide 377 */ 378 public static final int COMPAT_MODE_NEVER = -2; 379 380 /** 381 * Screen compatibility mode: unknown. 382 * @hide 383 */ 384 public static final int COMPAT_MODE_UNKNOWN = -3; 385 386 /** 387 * Screen compatibility mode: the application currently has compatibility 388 * mode disabled. 389 * @hide 390 */ 391 public static final int COMPAT_MODE_DISABLED = 0; 392 393 /** 394 * Screen compatibility mode: the application currently has compatibility 395 * mode enabled. 396 * @hide 397 */ 398 public static final int COMPAT_MODE_ENABLED = 1; 399 400 /** 401 * Screen compatibility mode: request to toggle the application's 402 * compatibility mode. 403 * @hide 404 */ 405 public static final int COMPAT_MODE_TOGGLE = 2; 406 407 /** 408 * First static stack stack ID. 409 * @hide 410 */ 411 public static final int FIRST_STATIC_STACK_ID = 0; 412 413 /** 414 * Home activity stack ID. 415 * @hide 416 */ 417 public static final int HOME_STACK_ID = FIRST_STATIC_STACK_ID; 418 419 /** 420 * ID of stack where fullscreen activities are normally launched into. 421 * @hide 422 */ 423 public static final int FULLSCREEN_WORKSPACE_STACK_ID = 1; 424 425 /** 426 * ID of stack where freeform/resized activities are normally launched into. 427 * @hide 428 */ 429 public static final int FREEFORM_WORKSPACE_STACK_ID = FULLSCREEN_WORKSPACE_STACK_ID + 1; 430 431 /** 432 * Last static stack stack ID. 433 * @hide 434 */ 435 public static final int LAST_STATIC_STACK_ID = FREEFORM_WORKSPACE_STACK_ID; 436 437 /** 438 * Start of ID range used by stacks that are created dynamically. 439 * @hide 440 */ 441 public static final int FIRST_DYNAMIC_STACK_ID = LAST_STATIC_STACK_ID + 1; 442 443 /** @hide */ 444 public int getFrontActivityScreenCompatMode() { 445 try { 446 return ActivityManagerNative.getDefault().getFrontActivityScreenCompatMode(); 447 } catch (RemoteException e) { 448 // System dead, we will be dead too soon! 449 return 0; 450 } 451 } 452 453 /** @hide */ 454 public void setFrontActivityScreenCompatMode(int mode) { 455 try { 456 ActivityManagerNative.getDefault().setFrontActivityScreenCompatMode(mode); 457 } catch (RemoteException e) { 458 // System dead, we will be dead too soon! 459 } 460 } 461 462 /** @hide */ 463 public int getPackageScreenCompatMode(String packageName) { 464 try { 465 return ActivityManagerNative.getDefault().getPackageScreenCompatMode(packageName); 466 } catch (RemoteException e) { 467 // System dead, we will be dead too soon! 468 return 0; 469 } 470 } 471 472 /** @hide */ 473 public void setPackageScreenCompatMode(String packageName, int mode) { 474 try { 475 ActivityManagerNative.getDefault().setPackageScreenCompatMode(packageName, mode); 476 } catch (RemoteException e) { 477 // System dead, we will be dead too soon! 478 } 479 } 480 481 /** @hide */ 482 public boolean getPackageAskScreenCompat(String packageName) { 483 try { 484 return ActivityManagerNative.getDefault().getPackageAskScreenCompat(packageName); 485 } catch (RemoteException e) { 486 // System dead, we will be dead too soon! 487 return false; 488 } 489 } 490 491 /** @hide */ 492 public void setPackageAskScreenCompat(String packageName, boolean ask) { 493 try { 494 ActivityManagerNative.getDefault().setPackageAskScreenCompat(packageName, ask); 495 } catch (RemoteException e) { 496 // System dead, we will be dead too soon! 497 } 498 } 499 500 /** 501 * Return the approximate per-application memory class of the current 502 * device. This gives you an idea of how hard a memory limit you should 503 * impose on your application to let the overall system work best. The 504 * returned value is in megabytes; the baseline Android memory class is 505 * 16 (which happens to be the Java heap limit of those devices); some 506 * device with more memory may return 24 or even higher numbers. 507 */ 508 public int getMemoryClass() { 509 return staticGetMemoryClass(); 510 } 511 512 /** @hide */ 513 static public int staticGetMemoryClass() { 514 // Really brain dead right now -- just take this from the configured 515 // vm heap size, and assume it is in megabytes and thus ends with "m". 516 String vmHeapSize = SystemProperties.get("dalvik.vm.heapgrowthlimit", ""); 517 if (vmHeapSize != null && !"".equals(vmHeapSize)) { 518 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1)); 519 } 520 return staticGetLargeMemoryClass(); 521 } 522 523 /** 524 * Return the approximate per-application memory class of the current 525 * device when an application is running with a large heap. This is the 526 * space available for memory-intensive applications; most applications 527 * should not need this amount of memory, and should instead stay with the 528 * {@link #getMemoryClass()} limit. The returned value is in megabytes. 529 * This may be the same size as {@link #getMemoryClass()} on memory 530 * constrained devices, or it may be significantly larger on devices with 531 * a large amount of available RAM. 532 * 533 * <p>The is the size of the application's Dalvik heap if it has 534 * specified <code>android:largeHeap="true"</code> in its manifest. 535 */ 536 public int getLargeMemoryClass() { 537 return staticGetLargeMemoryClass(); 538 } 539 540 /** @hide */ 541 static public int staticGetLargeMemoryClass() { 542 // Really brain dead right now -- just take this from the configured 543 // vm heap size, and assume it is in megabytes and thus ends with "m". 544 String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m"); 545 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1)); 546 } 547 548 /** 549 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 550 * is ultimately up to the device configuration, but currently it generally means 551 * something in the class of a 512MB device with about a 800x480 or less screen. 552 * This is mostly intended to be used by apps to determine whether they should turn 553 * off certain features that require more RAM. 554 */ 555 public boolean isLowRamDevice() { 556 return isLowRamDeviceStatic(); 557 } 558 559 /** @hide */ 560 public static boolean isLowRamDeviceStatic() { 561 return "true".equals(SystemProperties.get("ro.config.low_ram", "false")); 562 } 563 564 /** 565 * Used by persistent processes to determine if they are running on a 566 * higher-end device so should be okay using hardware drawing acceleration 567 * (which tends to consume a lot more RAM). 568 * @hide 569 */ 570 static public boolean isHighEndGfx() { 571 return !isLowRamDeviceStatic() && 572 !Resources.getSystem().getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 573 } 574 575 /** 576 * Return the maximum number of recents entries that we will maintain and show. 577 * @hide 578 */ 579 static public int getMaxRecentTasksStatic() { 580 if (gMaxRecentTasks < 0) { 581 return gMaxRecentTasks = isLowRamDeviceStatic() ? 50 : 100; 582 } 583 return gMaxRecentTasks; 584 } 585 586 /** 587 * Return the default limit on the number of recents that an app can make. 588 * @hide 589 */ 590 static public int getDefaultAppRecentsLimitStatic() { 591 return getMaxRecentTasksStatic() / 6; 592 } 593 594 /** 595 * Return the maximum limit on the number of recents that an app can make. 596 * @hide 597 */ 598 static public int getMaxAppRecentsLimitStatic() { 599 return getMaxRecentTasksStatic() / 2; 600 } 601 602 /** 603 * Information you can set and retrieve about the current activity within the recent task list. 604 */ 605 public static class TaskDescription implements Parcelable { 606 /** @hide */ 607 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 608 private static final String ATTR_TASKDESCRIPTIONLABEL = 609 ATTR_TASKDESCRIPTION_PREFIX + "label"; 610 private static final String ATTR_TASKDESCRIPTIONCOLOR = 611 ATTR_TASKDESCRIPTION_PREFIX + "color"; 612 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 613 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 614 615 private String mLabel; 616 private Bitmap mIcon; 617 private String mIconFilename; 618 private int mColorPrimary; 619 620 /** 621 * Creates the TaskDescription to the specified values. 622 * 623 * @param label A label and description of the current state of this task. 624 * @param icon An icon that represents the current state of this task. 625 * @param colorPrimary A color to override the theme's primary color. This color must be opaque. 626 */ 627 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 628 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 629 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 630 } 631 632 mLabel = label; 633 mIcon = icon; 634 mColorPrimary = colorPrimary; 635 } 636 637 /** @hide */ 638 public TaskDescription(String label, int colorPrimary, String iconFilename) { 639 this(label, null, colorPrimary); 640 mIconFilename = iconFilename; 641 } 642 643 /** 644 * Creates the TaskDescription to the specified values. 645 * 646 * @param label A label and description of the current state of this activity. 647 * @param icon An icon that represents the current state of this activity. 648 */ 649 public TaskDescription(String label, Bitmap icon) { 650 this(label, icon, 0); 651 } 652 653 /** 654 * Creates the TaskDescription to the specified values. 655 * 656 * @param label A label and description of the current state of this activity. 657 */ 658 public TaskDescription(String label) { 659 this(label, null, 0); 660 } 661 662 /** 663 * Creates an empty TaskDescription. 664 */ 665 public TaskDescription() { 666 this(null, null, 0); 667 } 668 669 /** 670 * Creates a copy of another TaskDescription. 671 */ 672 public TaskDescription(TaskDescription td) { 673 mLabel = td.mLabel; 674 mIcon = td.mIcon; 675 mColorPrimary = td.mColorPrimary; 676 mIconFilename = td.mIconFilename; 677 } 678 679 private TaskDescription(Parcel source) { 680 readFromParcel(source); 681 } 682 683 /** 684 * Sets the label for this task description. 685 * @hide 686 */ 687 public void setLabel(String label) { 688 mLabel = label; 689 } 690 691 /** 692 * Sets the primary color for this task description. 693 * @hide 694 */ 695 public void setPrimaryColor(int primaryColor) { 696 // Ensure that the given color is valid 697 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 698 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 699 } 700 mColorPrimary = primaryColor; 701 } 702 703 /** 704 * Sets the icon for this task description. 705 * @hide 706 */ 707 public void setIcon(Bitmap icon) { 708 mIcon = icon; 709 } 710 711 /** 712 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 713 * bitmap. 714 * @hide 715 */ 716 public void setIconFilename(String iconFilename) { 717 mIconFilename = iconFilename; 718 mIcon = null; 719 } 720 721 /** 722 * @return The label and description of the current state of this task. 723 */ 724 public String getLabel() { 725 return mLabel; 726 } 727 728 /** 729 * @return The icon that represents the current state of this task. 730 */ 731 public Bitmap getIcon() { 732 if (mIcon != null) { 733 return mIcon; 734 } 735 return loadTaskDescriptionIcon(mIconFilename); 736 } 737 738 /** @hide */ 739 public String getIconFilename() { 740 return mIconFilename; 741 } 742 743 /** @hide */ 744 public Bitmap getInMemoryIcon() { 745 return mIcon; 746 } 747 748 /** @hide */ 749 public static Bitmap loadTaskDescriptionIcon(String iconFilename) { 750 if (iconFilename != null) { 751 try { 752 return ActivityManagerNative.getDefault(). 753 getTaskDescriptionIcon(iconFilename); 754 } catch (RemoteException e) { 755 } 756 } 757 return null; 758 } 759 760 /** 761 * @return The color override on the theme's primary color. 762 */ 763 public int getPrimaryColor() { 764 return mColorPrimary; 765 } 766 767 /** @hide */ 768 public void saveToXml(XmlSerializer out) throws IOException { 769 if (mLabel != null) { 770 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 771 } 772 if (mColorPrimary != 0) { 773 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR, Integer.toHexString(mColorPrimary)); 774 } 775 if (mIconFilename != null) { 776 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 777 } 778 } 779 780 /** @hide */ 781 public void restoreFromXml(String attrName, String attrValue) { 782 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 783 setLabel(attrValue); 784 } else if (ATTR_TASKDESCRIPTIONCOLOR.equals(attrName)) { 785 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 786 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 787 setIconFilename(attrValue); 788 } 789 } 790 791 @Override 792 public int describeContents() { 793 return 0; 794 } 795 796 @Override 797 public void writeToParcel(Parcel dest, int flags) { 798 if (mLabel == null) { 799 dest.writeInt(0); 800 } else { 801 dest.writeInt(1); 802 dest.writeString(mLabel); 803 } 804 if (mIcon == null) { 805 dest.writeInt(0); 806 } else { 807 dest.writeInt(1); 808 mIcon.writeToParcel(dest, 0); 809 } 810 dest.writeInt(mColorPrimary); 811 if (mIconFilename == null) { 812 dest.writeInt(0); 813 } else { 814 dest.writeInt(1); 815 dest.writeString(mIconFilename); 816 } 817 } 818 819 public void readFromParcel(Parcel source) { 820 mLabel = source.readInt() > 0 ? source.readString() : null; 821 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 822 mColorPrimary = source.readInt(); 823 mIconFilename = source.readInt() > 0 ? source.readString() : null; 824 } 825 826 public static final Creator<TaskDescription> CREATOR 827 = new Creator<TaskDescription>() { 828 public TaskDescription createFromParcel(Parcel source) { 829 return new TaskDescription(source); 830 } 831 public TaskDescription[] newArray(int size) { 832 return new TaskDescription[size]; 833 } 834 }; 835 836 @Override 837 public String toString() { 838 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 839 " colorPrimary: " + mColorPrimary; 840 } 841 } 842 843 /** 844 * Information you can retrieve about tasks that the user has most recently 845 * started or visited. 846 */ 847 public static class RecentTaskInfo implements Parcelable { 848 /** 849 * If this task is currently running, this is the identifier for it. 850 * If it is not running, this will be -1. 851 */ 852 public int id; 853 854 /** 855 * The true identifier of this task, valid even if it is not running. 856 */ 857 public int persistentId; 858 859 /** 860 * The original Intent used to launch the task. You can use this 861 * Intent to re-launch the task (if it is no longer running) or bring 862 * the current task to the front. 863 */ 864 public Intent baseIntent; 865 866 /** 867 * If this task was started from an alias, this is the actual 868 * activity component that was initially started; the component of 869 * the baseIntent in this case is the name of the actual activity 870 * implementation that the alias referred to. Otherwise, this is null. 871 */ 872 public ComponentName origActivity; 873 874 /** 875 * The actual activity component that started the task. 876 * @hide 877 */ 878 @Nullable 879 public ComponentName realActivity; 880 881 /** 882 * Description of the task's last state. 883 */ 884 public CharSequence description; 885 886 /** 887 * The id of the ActivityStack this Task was on most recently. 888 * @hide 889 */ 890 public int stackId; 891 892 /** 893 * The id of the user the task was running as. 894 * @hide 895 */ 896 public int userId; 897 898 /** 899 * The first time this task was active. 900 * @hide 901 */ 902 public long firstActiveTime; 903 904 /** 905 * The last time this task was active. 906 * @hide 907 */ 908 public long lastActiveTime; 909 910 /** 911 * The recent activity values for the highest activity in the stack to have set the values. 912 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 913 */ 914 public TaskDescription taskDescription; 915 916 /** 917 * Task affiliation for grouping with other tasks. 918 */ 919 public int affiliatedTaskId; 920 921 /** 922 * Task affiliation color of the source task with the affiliated task id. 923 * 924 * @hide 925 */ 926 public int affiliatedTaskColor; 927 928 /** 929 * The component launched as the first activity in the task. 930 * This can be considered the "application" of this task. 931 */ 932 public ComponentName baseActivity; 933 934 /** 935 * The activity component at the top of the history stack of the task. 936 * This is what the user is currently doing. 937 */ 938 public ComponentName topActivity; 939 940 /** 941 * Number of activities in this task. 942 */ 943 public int numActivities; 944 945 public RecentTaskInfo() { 946 } 947 948 @Override 949 public int describeContents() { 950 return 0; 951 } 952 953 @Override 954 public void writeToParcel(Parcel dest, int flags) { 955 dest.writeInt(id); 956 dest.writeInt(persistentId); 957 if (baseIntent != null) { 958 dest.writeInt(1); 959 baseIntent.writeToParcel(dest, 0); 960 } else { 961 dest.writeInt(0); 962 } 963 ComponentName.writeToParcel(origActivity, dest); 964 ComponentName.writeToParcel(realActivity, dest); 965 TextUtils.writeToParcel(description, dest, 966 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 967 if (taskDescription != null) { 968 dest.writeInt(1); 969 taskDescription.writeToParcel(dest, 0); 970 } else { 971 dest.writeInt(0); 972 } 973 dest.writeInt(stackId); 974 dest.writeInt(userId); 975 dest.writeLong(firstActiveTime); 976 dest.writeLong(lastActiveTime); 977 dest.writeInt(affiliatedTaskId); 978 dest.writeInt(affiliatedTaskColor); 979 ComponentName.writeToParcel(baseActivity, dest); 980 ComponentName.writeToParcel(topActivity, dest); 981 dest.writeInt(numActivities); 982 } 983 984 public void readFromParcel(Parcel source) { 985 id = source.readInt(); 986 persistentId = source.readInt(); 987 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 988 origActivity = ComponentName.readFromParcel(source); 989 realActivity = ComponentName.readFromParcel(source); 990 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 991 taskDescription = source.readInt() > 0 ? 992 TaskDescription.CREATOR.createFromParcel(source) : null; 993 stackId = source.readInt(); 994 userId = source.readInt(); 995 firstActiveTime = source.readLong(); 996 lastActiveTime = source.readLong(); 997 affiliatedTaskId = source.readInt(); 998 affiliatedTaskColor = source.readInt(); 999 baseActivity = ComponentName.readFromParcel(source); 1000 topActivity = ComponentName.readFromParcel(source); 1001 numActivities = source.readInt(); 1002 } 1003 1004 public static final Creator<RecentTaskInfo> CREATOR 1005 = new Creator<RecentTaskInfo>() { 1006 public RecentTaskInfo createFromParcel(Parcel source) { 1007 return new RecentTaskInfo(source); 1008 } 1009 public RecentTaskInfo[] newArray(int size) { 1010 return new RecentTaskInfo[size]; 1011 } 1012 }; 1013 1014 private RecentTaskInfo(Parcel source) { 1015 readFromParcel(source); 1016 } 1017 } 1018 1019 /** 1020 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1021 * that have set their 1022 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1023 */ 1024 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1025 1026 /** 1027 * Provides a list that does not contain any 1028 * recent tasks that currently are not available to the user. 1029 */ 1030 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1031 1032 /** 1033 * Provides a list that contains recent tasks for all 1034 * profiles of a user. 1035 * @hide 1036 */ 1037 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1038 1039 /** 1040 * Ignores all tasks that are on the home stack. 1041 * @hide 1042 */ 1043 public static final int RECENT_IGNORE_HOME_STACK_TASKS = 0x0008; 1044 1045 /** 1046 * <p></p>Return a list of the tasks that the user has recently launched, with 1047 * the most recent being first and older ones after in order. 1048 * 1049 * <p><b>Note: this method is only intended for debugging and presenting 1050 * task management user interfaces</b>. This should never be used for 1051 * core logic in an application, such as deciding between different 1052 * behaviors based on the information found here. Such uses are 1053 * <em>not</em> supported, and will likely break in the future. For 1054 * example, if multiple applications can be actively running at the 1055 * same time, assumptions made about the meaning of the data here for 1056 * purposes of control flow will be incorrect.</p> 1057 * 1058 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1059 * no longer available to third party applications: the introduction of 1060 * document-centric recents means 1061 * it can leak personal information to the caller. For backwards compatibility, 1062 * it will still return a small subset of its data: at least the caller's 1063 * own tasks (though see {@link #getAppTasks()} for the correct supported 1064 * way to retrieve that information), and possibly some other tasks 1065 * such as home that are known to not be sensitive. 1066 * 1067 * @param maxNum The maximum number of entries to return in the list. The 1068 * actual number returned may be smaller, depending on how many tasks the 1069 * user has started and the maximum number the system can remember. 1070 * @param flags Information about what to return. May be any combination 1071 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1072 * 1073 * @return Returns a list of RecentTaskInfo records describing each of 1074 * the recent tasks. 1075 */ 1076 @Deprecated 1077 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1078 throws SecurityException { 1079 try { 1080 return ActivityManagerNative.getDefault().getRecentTasks(maxNum, 1081 flags, UserHandle.myUserId()); 1082 } catch (RemoteException e) { 1083 // System dead, we will be dead too soon! 1084 return null; 1085 } 1086 } 1087 1088 /** 1089 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1090 * specific user. It requires holding 1091 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1092 * @param maxNum The maximum number of entries to return in the list. The 1093 * actual number returned may be smaller, depending on how many tasks the 1094 * user has started and the maximum number the system can remember. 1095 * @param flags Information about what to return. May be any combination 1096 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1097 * 1098 * @return Returns a list of RecentTaskInfo records describing each of 1099 * the recent tasks. 1100 * 1101 * @hide 1102 */ 1103 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1104 throws SecurityException { 1105 try { 1106 return ActivityManagerNative.getDefault().getRecentTasks(maxNum, 1107 flags, userId); 1108 } catch (RemoteException e) { 1109 // System dead, we will be dead too soon! 1110 return null; 1111 } 1112 } 1113 1114 /** 1115 * Information you can retrieve about a particular task that is currently 1116 * "running" in the system. Note that a running task does not mean the 1117 * given task actually has a process it is actively running in; it simply 1118 * means that the user has gone to it and never closed it, but currently 1119 * the system may have killed its process and is only holding on to its 1120 * last state in order to restart it when the user returns. 1121 */ 1122 public static class RunningTaskInfo implements Parcelable { 1123 /** 1124 * A unique identifier for this task. 1125 */ 1126 public int id; 1127 1128 /** 1129 * The component launched as the first activity in the task. This can 1130 * be considered the "application" of this task. 1131 */ 1132 public ComponentName baseActivity; 1133 1134 /** 1135 * The activity component at the top of the history stack of the task. 1136 * This is what the user is currently doing. 1137 */ 1138 public ComponentName topActivity; 1139 1140 /** 1141 * Thumbnail representation of the task's current state. Currently 1142 * always null. 1143 */ 1144 public Bitmap thumbnail; 1145 1146 /** 1147 * Description of the task's current state. 1148 */ 1149 public CharSequence description; 1150 1151 /** 1152 * Number of activities in this task. 1153 */ 1154 public int numActivities; 1155 1156 /** 1157 * Number of activities that are currently running (not stopped 1158 * and persisted) in this task. 1159 */ 1160 public int numRunning; 1161 1162 /** 1163 * Last time task was run. For sorting. 1164 * @hide 1165 */ 1166 public long lastActiveTime; 1167 1168 public RunningTaskInfo() { 1169 } 1170 1171 public int describeContents() { 1172 return 0; 1173 } 1174 1175 public void writeToParcel(Parcel dest, int flags) { 1176 dest.writeInt(id); 1177 ComponentName.writeToParcel(baseActivity, dest); 1178 ComponentName.writeToParcel(topActivity, dest); 1179 if (thumbnail != null) { 1180 dest.writeInt(1); 1181 thumbnail.writeToParcel(dest, 0); 1182 } else { 1183 dest.writeInt(0); 1184 } 1185 TextUtils.writeToParcel(description, dest, 1186 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1187 dest.writeInt(numActivities); 1188 dest.writeInt(numRunning); 1189 } 1190 1191 public void readFromParcel(Parcel source) { 1192 id = source.readInt(); 1193 baseActivity = ComponentName.readFromParcel(source); 1194 topActivity = ComponentName.readFromParcel(source); 1195 if (source.readInt() != 0) { 1196 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1197 } else { 1198 thumbnail = null; 1199 } 1200 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1201 numActivities = source.readInt(); 1202 numRunning = source.readInt(); 1203 } 1204 1205 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1206 public RunningTaskInfo createFromParcel(Parcel source) { 1207 return new RunningTaskInfo(source); 1208 } 1209 public RunningTaskInfo[] newArray(int size) { 1210 return new RunningTaskInfo[size]; 1211 } 1212 }; 1213 1214 private RunningTaskInfo(Parcel source) { 1215 readFromParcel(source); 1216 } 1217 } 1218 1219 /** 1220 * Get the list of tasks associated with the calling application. 1221 * 1222 * @return The list of tasks associated with the application making this call. 1223 * @throws SecurityException 1224 */ 1225 public List<ActivityManager.AppTask> getAppTasks() { 1226 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1227 List<IAppTask> appTasks; 1228 try { 1229 appTasks = ActivityManagerNative.getDefault().getAppTasks(mContext.getPackageName()); 1230 } catch (RemoteException e) { 1231 // System dead, we will be dead too soon! 1232 return null; 1233 } 1234 int numAppTasks = appTasks.size(); 1235 for (int i = 0; i < numAppTasks; i++) { 1236 tasks.add(new AppTask(appTasks.get(i))); 1237 } 1238 return tasks; 1239 } 1240 1241 /** 1242 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1243 * with {@link #addAppTask}. 1244 */ 1245 public Size getAppTaskThumbnailSize() { 1246 synchronized (this) { 1247 ensureAppTaskThumbnailSizeLocked(); 1248 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1249 } 1250 } 1251 1252 private void ensureAppTaskThumbnailSizeLocked() { 1253 if (mAppTaskThumbnailSize == null) { 1254 try { 1255 mAppTaskThumbnailSize = ActivityManagerNative.getDefault().getAppTaskThumbnailSize(); 1256 } catch (RemoteException e) { 1257 throw new IllegalStateException("System dead?", e); 1258 } 1259 } 1260 } 1261 1262 /** 1263 * Add a new {@link AppTask} for the calling application. This will create a new 1264 * recents entry that is added to the <b>end</b> of all existing recents. 1265 * 1266 * @param activity The activity that is adding the entry. This is used to help determine 1267 * the context that the new recents entry will be in. 1268 * @param intent The Intent that describes the recents entry. This is the same Intent that 1269 * you would have used to launch the activity for it. In generally you will want to set 1270 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1271 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1272 * entry will exist without an activity, so it doesn't make sense to not retain it when 1273 * its activity disappears. The given Intent here also must have an explicit ComponentName 1274 * set on it. 1275 * @param description Optional additional description information. 1276 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1277 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1278 * recreated in your process, probably in a way you don't like, before the recents entry 1279 * is added. 1280 * 1281 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 1282 * most likely cause of failure is that there is no more room for more tasks for your app. 1283 */ 1284 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 1285 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 1286 Point size; 1287 synchronized (this) { 1288 ensureAppTaskThumbnailSizeLocked(); 1289 size = mAppTaskThumbnailSize; 1290 } 1291 final int tw = thumbnail.getWidth(); 1292 final int th = thumbnail.getHeight(); 1293 if (tw != size.x || th != size.y) { 1294 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 1295 1296 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 1297 float scale; 1298 float dx = 0, dy = 0; 1299 if (tw * size.x > size.y * th) { 1300 scale = (float) size.x / (float) th; 1301 dx = (size.y - tw * scale) * 0.5f; 1302 } else { 1303 scale = (float) size.y / (float) tw; 1304 dy = (size.x - th * scale) * 0.5f; 1305 } 1306 Matrix matrix = new Matrix(); 1307 matrix.setScale(scale, scale); 1308 matrix.postTranslate((int) (dx + 0.5f), 0); 1309 1310 Canvas canvas = new Canvas(bm); 1311 canvas.drawBitmap(thumbnail, matrix, null); 1312 canvas.setBitmap(null); 1313 1314 thumbnail = bm; 1315 } 1316 if (description == null) { 1317 description = new TaskDescription(); 1318 } 1319 try { 1320 return ActivityManagerNative.getDefault().addAppTask(activity.getActivityToken(), 1321 intent, description, thumbnail); 1322 } catch (RemoteException e) { 1323 throw new IllegalStateException("System dead?", e); 1324 } 1325 } 1326 1327 /** 1328 * Return a list of the tasks that are currently running, with 1329 * the most recent being first and older ones after in order. Note that 1330 * "running" does not mean any of the task's code is currently loaded or 1331 * activity -- the task may have been frozen by the system, so that it 1332 * can be restarted in its previous state when next brought to the 1333 * foreground. 1334 * 1335 * <p><b>Note: this method is only intended for debugging and presenting 1336 * task management user interfaces</b>. This should never be used for 1337 * core logic in an application, such as deciding between different 1338 * behaviors based on the information found here. Such uses are 1339 * <em>not</em> supported, and will likely break in the future. For 1340 * example, if multiple applications can be actively running at the 1341 * same time, assumptions made about the meaning of the data here for 1342 * purposes of control flow will be incorrect.</p> 1343 * 1344 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 1345 * is no longer available to third party 1346 * applications: the introduction of document-centric recents means 1347 * it can leak person information to the caller. For backwards compatibility, 1348 * it will still retu rn a small subset of its data: at least the caller's 1349 * own tasks, and possibly some other tasks 1350 * such as home that are known to not be sensitive. 1351 * 1352 * @param maxNum The maximum number of entries to return in the list. The 1353 * actual number returned may be smaller, depending on how many tasks the 1354 * user has started. 1355 * 1356 * @return Returns a list of RunningTaskInfo records describing each of 1357 * the running tasks. 1358 */ 1359 @Deprecated 1360 public List<RunningTaskInfo> getRunningTasks(int maxNum) 1361 throws SecurityException { 1362 try { 1363 return ActivityManagerNative.getDefault().getTasks(maxNum, 0); 1364 } catch (RemoteException e) { 1365 // System dead, we will be dead too soon! 1366 return null; 1367 } 1368 } 1369 1370 /** 1371 * Completely remove the given task. 1372 * 1373 * @param taskId Identifier of the task to be removed. 1374 * @return Returns true if the given task was found and removed. 1375 * 1376 * @hide 1377 */ 1378 public boolean removeTask(int taskId) throws SecurityException { 1379 try { 1380 return ActivityManagerNative.getDefault().removeTask(taskId); 1381 } catch (RemoteException e) { 1382 // System dead, we will be dead too soon! 1383 return false; 1384 } 1385 } 1386 1387 /** @hide */ 1388 public static class TaskThumbnail implements Parcelable { 1389 public Bitmap mainThumbnail; 1390 public ParcelFileDescriptor thumbnailFileDescriptor; 1391 1392 public TaskThumbnail() { 1393 } 1394 1395 public int describeContents() { 1396 if (thumbnailFileDescriptor != null) { 1397 return thumbnailFileDescriptor.describeContents(); 1398 } 1399 return 0; 1400 } 1401 1402 public void writeToParcel(Parcel dest, int flags) { 1403 if (mainThumbnail != null) { 1404 dest.writeInt(1); 1405 mainThumbnail.writeToParcel(dest, flags); 1406 } else { 1407 dest.writeInt(0); 1408 } 1409 if (thumbnailFileDescriptor != null) { 1410 dest.writeInt(1); 1411 thumbnailFileDescriptor.writeToParcel(dest, flags); 1412 } else { 1413 dest.writeInt(0); 1414 } 1415 } 1416 1417 public void readFromParcel(Parcel source) { 1418 if (source.readInt() != 0) { 1419 mainThumbnail = Bitmap.CREATOR.createFromParcel(source); 1420 } else { 1421 mainThumbnail = null; 1422 } 1423 if (source.readInt() != 0) { 1424 thumbnailFileDescriptor = ParcelFileDescriptor.CREATOR.createFromParcel(source); 1425 } else { 1426 thumbnailFileDescriptor = null; 1427 } 1428 } 1429 1430 public static final Creator<TaskThumbnail> CREATOR = new Creator<TaskThumbnail>() { 1431 public TaskThumbnail createFromParcel(Parcel source) { 1432 return new TaskThumbnail(source); 1433 } 1434 public TaskThumbnail[] newArray(int size) { 1435 return new TaskThumbnail[size]; 1436 } 1437 }; 1438 1439 private TaskThumbnail(Parcel source) { 1440 readFromParcel(source); 1441 } 1442 } 1443 1444 /** @hide */ 1445 public TaskThumbnail getTaskThumbnail(int id) throws SecurityException { 1446 try { 1447 return ActivityManagerNative.getDefault().getTaskThumbnail(id); 1448 } catch (RemoteException e) { 1449 // System dead, we will be dead too soon! 1450 return null; 1451 } 1452 } 1453 1454 /** @hide */ 1455 public boolean isInHomeStack(int taskId) { 1456 try { 1457 return ActivityManagerNative.getDefault().isInHomeStack(taskId); 1458 } catch (RemoteException e) { 1459 // System dead, we will be dead too soon! 1460 return false; 1461 } 1462 } 1463 1464 /** 1465 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 1466 * activity along with the task, so it is positioned immediately behind 1467 * the task. 1468 */ 1469 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 1470 1471 /** 1472 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 1473 * user-instigated action, so the current activity will not receive a 1474 * hint that the user is leaving. 1475 */ 1476 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 1477 1478 /** 1479 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 1480 * with a null options argument. 1481 * 1482 * @param taskId The identifier of the task to be moved, as found in 1483 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 1484 * @param flags Additional operational flags, 0 or more of 1485 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 1486 */ 1487 public void moveTaskToFront(int taskId, int flags) { 1488 moveTaskToFront(taskId, flags, null); 1489 } 1490 1491 /** 1492 * Ask that the task associated with a given task ID be moved to the 1493 * front of the stack, so it is now visible to the user. Requires that 1494 * the caller hold permission {@link android.Manifest.permission#REORDER_TASKS} 1495 * or a SecurityException will be thrown. 1496 * 1497 * @param taskId The identifier of the task to be moved, as found in 1498 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 1499 * @param flags Additional operational flags, 0 or more of 1500 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 1501 * @param options Additional options for the operation, either null or 1502 * as per {@link Context#startActivity(Intent, android.os.Bundle) 1503 * Context.startActivity(Intent, Bundle)}. 1504 */ 1505 public void moveTaskToFront(int taskId, int flags, Bundle options) { 1506 try { 1507 ActivityManagerNative.getDefault().moveTaskToFront(taskId, flags, options); 1508 } catch (RemoteException e) { 1509 // System dead, we will be dead too soon! 1510 } 1511 } 1512 1513 /** 1514 * Information you can retrieve about a particular Service that is 1515 * currently running in the system. 1516 */ 1517 public static class RunningServiceInfo implements Parcelable { 1518 /** 1519 * The service component. 1520 */ 1521 public ComponentName service; 1522 1523 /** 1524 * If non-zero, this is the process the service is running in. 1525 */ 1526 public int pid; 1527 1528 /** 1529 * The UID that owns this service. 1530 */ 1531 public int uid; 1532 1533 /** 1534 * The name of the process this service runs in. 1535 */ 1536 public String process; 1537 1538 /** 1539 * Set to true if the service has asked to run as a foreground process. 1540 */ 1541 public boolean foreground; 1542 1543 /** 1544 * The time when the service was first made active, either by someone 1545 * starting or binding to it. This 1546 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 1547 */ 1548 public long activeSince; 1549 1550 /** 1551 * Set to true if this service has been explicitly started. 1552 */ 1553 public boolean started; 1554 1555 /** 1556 * Number of clients connected to the service. 1557 */ 1558 public int clientCount; 1559 1560 /** 1561 * Number of times the service's process has crashed while the service 1562 * is running. 1563 */ 1564 public int crashCount; 1565 1566 /** 1567 * The time when there was last activity in the service (either 1568 * explicit requests to start it or clients binding to it). This 1569 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 1570 */ 1571 public long lastActivityTime; 1572 1573 /** 1574 * If non-zero, this service is not currently running, but scheduled to 1575 * restart at the given time. 1576 */ 1577 public long restarting; 1578 1579 /** 1580 * Bit for {@link #flags}: set if this service has been 1581 * explicitly started. 1582 */ 1583 public static final int FLAG_STARTED = 1<<0; 1584 1585 /** 1586 * Bit for {@link #flags}: set if the service has asked to 1587 * run as a foreground process. 1588 */ 1589 public static final int FLAG_FOREGROUND = 1<<1; 1590 1591 /** 1592 * Bit for {@link #flags): set if the service is running in a 1593 * core system process. 1594 */ 1595 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 1596 1597 /** 1598 * Bit for {@link #flags): set if the service is running in a 1599 * persistent process. 1600 */ 1601 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 1602 1603 /** 1604 * Running flags. 1605 */ 1606 public int flags; 1607 1608 /** 1609 * For special services that are bound to by system code, this is 1610 * the package that holds the binding. 1611 */ 1612 public String clientPackage; 1613 1614 /** 1615 * For special services that are bound to by system code, this is 1616 * a string resource providing a user-visible label for who the 1617 * client is. 1618 */ 1619 public int clientLabel; 1620 1621 public RunningServiceInfo() { 1622 } 1623 1624 public int describeContents() { 1625 return 0; 1626 } 1627 1628 public void writeToParcel(Parcel dest, int flags) { 1629 ComponentName.writeToParcel(service, dest); 1630 dest.writeInt(pid); 1631 dest.writeInt(uid); 1632 dest.writeString(process); 1633 dest.writeInt(foreground ? 1 : 0); 1634 dest.writeLong(activeSince); 1635 dest.writeInt(started ? 1 : 0); 1636 dest.writeInt(clientCount); 1637 dest.writeInt(crashCount); 1638 dest.writeLong(lastActivityTime); 1639 dest.writeLong(restarting); 1640 dest.writeInt(this.flags); 1641 dest.writeString(clientPackage); 1642 dest.writeInt(clientLabel); 1643 } 1644 1645 public void readFromParcel(Parcel source) { 1646 service = ComponentName.readFromParcel(source); 1647 pid = source.readInt(); 1648 uid = source.readInt(); 1649 process = source.readString(); 1650 foreground = source.readInt() != 0; 1651 activeSince = source.readLong(); 1652 started = source.readInt() != 0; 1653 clientCount = source.readInt(); 1654 crashCount = source.readInt(); 1655 lastActivityTime = source.readLong(); 1656 restarting = source.readLong(); 1657 flags = source.readInt(); 1658 clientPackage = source.readString(); 1659 clientLabel = source.readInt(); 1660 } 1661 1662 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 1663 public RunningServiceInfo createFromParcel(Parcel source) { 1664 return new RunningServiceInfo(source); 1665 } 1666 public RunningServiceInfo[] newArray(int size) { 1667 return new RunningServiceInfo[size]; 1668 } 1669 }; 1670 1671 private RunningServiceInfo(Parcel source) { 1672 readFromParcel(source); 1673 } 1674 } 1675 1676 /** 1677 * Return a list of the services that are currently running. 1678 * 1679 * <p><b>Note: this method is only intended for debugging or implementing 1680 * service management type user interfaces.</b></p> 1681 * 1682 * @param maxNum The maximum number of entries to return in the list. The 1683 * actual number returned may be smaller, depending on how many services 1684 * are running. 1685 * 1686 * @return Returns a list of RunningServiceInfo records describing each of 1687 * the running tasks. 1688 */ 1689 public List<RunningServiceInfo> getRunningServices(int maxNum) 1690 throws SecurityException { 1691 try { 1692 return ActivityManagerNative.getDefault() 1693 .getServices(maxNum, 0); 1694 } catch (RemoteException e) { 1695 // System dead, we will be dead too soon! 1696 return null; 1697 } 1698 } 1699 1700 /** 1701 * Returns a PendingIntent you can start to show a control panel for the 1702 * given running service. If the service does not have a control panel, 1703 * null is returned. 1704 */ 1705 public PendingIntent getRunningServiceControlPanel(ComponentName service) 1706 throws SecurityException { 1707 try { 1708 return ActivityManagerNative.getDefault() 1709 .getRunningServiceControlPanel(service); 1710 } catch (RemoteException e) { 1711 // System dead, we will be dead too soon! 1712 return null; 1713 } 1714 } 1715 1716 /** 1717 * Information you can retrieve about the available memory through 1718 * {@link ActivityManager#getMemoryInfo}. 1719 */ 1720 public static class MemoryInfo implements Parcelable { 1721 /** 1722 * The available memory on the system. This number should not 1723 * be considered absolute: due to the nature of the kernel, a significant 1724 * portion of this memory is actually in use and needed for the overall 1725 * system to run well. 1726 */ 1727 public long availMem; 1728 1729 /** 1730 * The total memory accessible by the kernel. This is basically the 1731 * RAM size of the device, not including below-kernel fixed allocations 1732 * like DMA buffers, RAM for the baseband CPU, etc. 1733 */ 1734 public long totalMem; 1735 1736 /** 1737 * The threshold of {@link #availMem} at which we consider memory to be 1738 * low and start killing background services and other non-extraneous 1739 * processes. 1740 */ 1741 public long threshold; 1742 1743 /** 1744 * Set to true if the system considers itself to currently be in a low 1745 * memory situation. 1746 */ 1747 public boolean lowMemory; 1748 1749 /** @hide */ 1750 public long hiddenAppThreshold; 1751 /** @hide */ 1752 public long secondaryServerThreshold; 1753 /** @hide */ 1754 public long visibleAppThreshold; 1755 /** @hide */ 1756 public long foregroundAppThreshold; 1757 1758 public MemoryInfo() { 1759 } 1760 1761 public int describeContents() { 1762 return 0; 1763 } 1764 1765 public void writeToParcel(Parcel dest, int flags) { 1766 dest.writeLong(availMem); 1767 dest.writeLong(totalMem); 1768 dest.writeLong(threshold); 1769 dest.writeInt(lowMemory ? 1 : 0); 1770 dest.writeLong(hiddenAppThreshold); 1771 dest.writeLong(secondaryServerThreshold); 1772 dest.writeLong(visibleAppThreshold); 1773 dest.writeLong(foregroundAppThreshold); 1774 } 1775 1776 public void readFromParcel(Parcel source) { 1777 availMem = source.readLong(); 1778 totalMem = source.readLong(); 1779 threshold = source.readLong(); 1780 lowMemory = source.readInt() != 0; 1781 hiddenAppThreshold = source.readLong(); 1782 secondaryServerThreshold = source.readLong(); 1783 visibleAppThreshold = source.readLong(); 1784 foregroundAppThreshold = source.readLong(); 1785 } 1786 1787 public static final Creator<MemoryInfo> CREATOR 1788 = new Creator<MemoryInfo>() { 1789 public MemoryInfo createFromParcel(Parcel source) { 1790 return new MemoryInfo(source); 1791 } 1792 public MemoryInfo[] newArray(int size) { 1793 return new MemoryInfo[size]; 1794 } 1795 }; 1796 1797 private MemoryInfo(Parcel source) { 1798 readFromParcel(source); 1799 } 1800 } 1801 1802 /** 1803 * Return general information about the memory state of the system. This 1804 * can be used to help decide how to manage your own memory, though note 1805 * that polling is not recommended and 1806 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 1807 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 1808 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 1809 * level of your process as needed, which gives a better hint for how to 1810 * manage its memory. 1811 */ 1812 public void getMemoryInfo(MemoryInfo outInfo) { 1813 try { 1814 ActivityManagerNative.getDefault().getMemoryInfo(outInfo); 1815 } catch (RemoteException e) { 1816 } 1817 } 1818 1819 /** 1820 * Information you can retrieve about an ActivityStack in the system. 1821 * @hide 1822 */ 1823 public static class StackInfo implements Parcelable { 1824 public int stackId; 1825 public Rect bounds = new Rect(); 1826 public int[] taskIds; 1827 public String[] taskNames; 1828 public Rect[] taskBounds; 1829 public int displayId; 1830 1831 @Override 1832 public int describeContents() { 1833 return 0; 1834 } 1835 1836 @Override 1837 public void writeToParcel(Parcel dest, int flags) { 1838 dest.writeInt(stackId); 1839 dest.writeInt(bounds.left); 1840 dest.writeInt(bounds.top); 1841 dest.writeInt(bounds.right); 1842 dest.writeInt(bounds.bottom); 1843 dest.writeIntArray(taskIds); 1844 dest.writeStringArray(taskNames); 1845 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 1846 dest.writeInt(boundsCount); 1847 for (int i = 0; i < boundsCount; i++) { 1848 dest.writeInt(taskBounds[i].left); 1849 dest.writeInt(taskBounds[i].top); 1850 dest.writeInt(taskBounds[i].right); 1851 dest.writeInt(taskBounds[i].bottom); 1852 } 1853 dest.writeInt(displayId); 1854 } 1855 1856 public void readFromParcel(Parcel source) { 1857 stackId = source.readInt(); 1858 bounds = new Rect( 1859 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 1860 taskIds = source.createIntArray(); 1861 taskNames = source.createStringArray(); 1862 final int boundsCount = source.readInt(); 1863 if (boundsCount > 0) { 1864 taskBounds = new Rect[boundsCount]; 1865 for (int i = 0; i < boundsCount; i++) { 1866 taskBounds[i] = new Rect(); 1867 taskBounds[i].set( 1868 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 1869 } 1870 } else { 1871 taskBounds = null; 1872 } 1873 displayId = source.readInt(); 1874 } 1875 1876 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 1877 @Override 1878 public StackInfo createFromParcel(Parcel source) { 1879 return new StackInfo(source); 1880 } 1881 @Override 1882 public StackInfo[] newArray(int size) { 1883 return new StackInfo[size]; 1884 } 1885 }; 1886 1887 public StackInfo() { 1888 } 1889 1890 private StackInfo(Parcel source) { 1891 readFromParcel(source); 1892 } 1893 1894 public String toString(String prefix) { 1895 StringBuilder sb = new StringBuilder(256); 1896 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 1897 sb.append(" bounds="); sb.append(bounds.toShortString()); 1898 sb.append(" displayId="); sb.append(displayId); 1899 sb.append("\n"); 1900 prefix = prefix + " "; 1901 for (int i = 0; i < taskIds.length; ++i) { 1902 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 1903 sb.append(": "); sb.append(taskNames[i]); 1904 if (taskBounds != null) { 1905 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 1906 } 1907 sb.append("\n"); 1908 } 1909 return sb.toString(); 1910 } 1911 1912 @Override 1913 public String toString() { 1914 return toString(""); 1915 } 1916 } 1917 1918 /** 1919 * @hide 1920 */ 1921 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 1922 try { 1923 return ActivityManagerNative.getDefault().clearApplicationUserData(packageName, 1924 observer, UserHandle.myUserId()); 1925 } catch (RemoteException e) { 1926 return false; 1927 } 1928 } 1929 1930 /** 1931 * Permits an application to erase its own data from disk. This is equivalent to 1932 * the user choosing to clear the app's data from within the device settings UI. It 1933 * erases all dynamic data associated with the app -- its private data and data in its 1934 * private area on external storage -- but does not remove the installed application 1935 * itself, nor any OBB files. 1936 * 1937 * @return {@code true} if the application successfully requested that the application's 1938 * data be erased; {@code false} otherwise. 1939 */ 1940 public boolean clearApplicationUserData() { 1941 return clearApplicationUserData(mContext.getPackageName(), null); 1942 } 1943 1944 /** 1945 * Information you can retrieve about any processes that are in an error condition. 1946 */ 1947 public static class ProcessErrorStateInfo implements Parcelable { 1948 /** 1949 * Condition codes 1950 */ 1951 public static final int NO_ERROR = 0; 1952 public static final int CRASHED = 1; 1953 public static final int NOT_RESPONDING = 2; 1954 1955 /** 1956 * The condition that the process is in. 1957 */ 1958 public int condition; 1959 1960 /** 1961 * The process name in which the crash or error occurred. 1962 */ 1963 public String processName; 1964 1965 /** 1966 * The pid of this process; 0 if none 1967 */ 1968 public int pid; 1969 1970 /** 1971 * The kernel user-ID that has been assigned to this process; 1972 * currently this is not a unique ID (multiple applications can have 1973 * the same uid). 1974 */ 1975 public int uid; 1976 1977 /** 1978 * The activity name associated with the error, if known. May be null. 1979 */ 1980 public String tag; 1981 1982 /** 1983 * A short message describing the error condition. 1984 */ 1985 public String shortMsg; 1986 1987 /** 1988 * A long message describing the error condition. 1989 */ 1990 public String longMsg; 1991 1992 /** 1993 * The stack trace where the error originated. May be null. 1994 */ 1995 public String stackTrace; 1996 1997 /** 1998 * to be deprecated: This value will always be null. 1999 */ 2000 public byte[] crashData = null; 2001 2002 public ProcessErrorStateInfo() { 2003 } 2004 2005 @Override 2006 public int describeContents() { 2007 return 0; 2008 } 2009 2010 @Override 2011 public void writeToParcel(Parcel dest, int flags) { 2012 dest.writeInt(condition); 2013 dest.writeString(processName); 2014 dest.writeInt(pid); 2015 dest.writeInt(uid); 2016 dest.writeString(tag); 2017 dest.writeString(shortMsg); 2018 dest.writeString(longMsg); 2019 dest.writeString(stackTrace); 2020 } 2021 2022 public void readFromParcel(Parcel source) { 2023 condition = source.readInt(); 2024 processName = source.readString(); 2025 pid = source.readInt(); 2026 uid = source.readInt(); 2027 tag = source.readString(); 2028 shortMsg = source.readString(); 2029 longMsg = source.readString(); 2030 stackTrace = source.readString(); 2031 } 2032 2033 public static final Creator<ProcessErrorStateInfo> CREATOR = 2034 new Creator<ProcessErrorStateInfo>() { 2035 public ProcessErrorStateInfo createFromParcel(Parcel source) { 2036 return new ProcessErrorStateInfo(source); 2037 } 2038 public ProcessErrorStateInfo[] newArray(int size) { 2039 return new ProcessErrorStateInfo[size]; 2040 } 2041 }; 2042 2043 private ProcessErrorStateInfo(Parcel source) { 2044 readFromParcel(source); 2045 } 2046 } 2047 2048 /** 2049 * Returns a list of any processes that are currently in an error condition. The result 2050 * will be null if all processes are running properly at this time. 2051 * 2052 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 2053 * current error conditions (it will not return an empty list). This list ordering is not 2054 * specified. 2055 */ 2056 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 2057 try { 2058 return ActivityManagerNative.getDefault().getProcessesInErrorState(); 2059 } catch (RemoteException e) { 2060 return null; 2061 } 2062 } 2063 2064 /** 2065 * Information you can retrieve about a running process. 2066 */ 2067 public static class RunningAppProcessInfo implements Parcelable { 2068 /** 2069 * The name of the process that this object is associated with 2070 */ 2071 public String processName; 2072 2073 /** 2074 * The pid of this process; 0 if none 2075 */ 2076 public int pid; 2077 2078 /** 2079 * The user id of this process. 2080 */ 2081 public int uid; 2082 2083 /** 2084 * All packages that have been loaded into the process. 2085 */ 2086 public String pkgList[]; 2087 2088 /** 2089 * Constant for {@link #flags}: this is an app that is unable to 2090 * correctly save its state when going to the background, 2091 * so it can not be killed while in the background. 2092 * @hide 2093 */ 2094 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 2095 2096 /** 2097 * Constant for {@link #flags}: this process is associated with a 2098 * persistent system app. 2099 * @hide 2100 */ 2101 public static final int FLAG_PERSISTENT = 1<<1; 2102 2103 /** 2104 * Constant for {@link #flags}: this process is associated with a 2105 * persistent system app. 2106 * @hide 2107 */ 2108 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 2109 2110 /** 2111 * Flags of information. May be any of 2112 * {@link #FLAG_CANT_SAVE_STATE}. 2113 * @hide 2114 */ 2115 public int flags; 2116 2117 /** 2118 * Last memory trim level reported to the process: corresponds to 2119 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2120 * ComponentCallbacks2.onTrimMemory(int)}. 2121 */ 2122 public int lastTrimLevel; 2123 2124 /** 2125 * Constant for {@link #importance}: This process is running the 2126 * foreground UI; that is, it is the thing currently at the top of the screen 2127 * that the user is interacting with. 2128 */ 2129 public static final int IMPORTANCE_FOREGROUND = 100; 2130 2131 /** 2132 * Constant for {@link #importance}: This process is running a foreground 2133 * service, for example to perform music playback even while the user is 2134 * not immediately in the app. This generally indicates that the process 2135 * is doing something the user actively cares about. 2136 */ 2137 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 2138 2139 /** 2140 * Constant for {@link #importance}: This process is running the foreground 2141 * UI, but the device is asleep so it is not visible to the user. This means 2142 * the user is not really aware of the process, because they can not see or 2143 * interact with it, but it is quite important because it what they expect to 2144 * return to once unlocking the device. 2145 */ 2146 public static final int IMPORTANCE_TOP_SLEEPING = 150; 2147 2148 /** 2149 * Constant for {@link #importance}: This process is running something 2150 * that is actively visible to the user, though not in the immediate 2151 * foreground. This may be running a window that is behind the current 2152 * foreground (so paused and with its state saved, not interacting with 2153 * the user, but visible to them to some degree); it may also be running 2154 * other services under the system's control that it inconsiders important. 2155 */ 2156 public static final int IMPORTANCE_VISIBLE = 200; 2157 2158 /** 2159 * Constant for {@link #importance}: This process is not something the user 2160 * is directly aware of, but is otherwise perceptable to them to some degree. 2161 */ 2162 public static final int IMPORTANCE_PERCEPTIBLE = 130; 2163 2164 /** 2165 * Constant for {@link #importance}: This process is running an 2166 * application that can not save its state, and thus can't be killed 2167 * while in the background. 2168 * @hide 2169 */ 2170 public static final int IMPORTANCE_CANT_SAVE_STATE = 170; 2171 2172 /** 2173 * Constant for {@link #importance}: This process is contains services 2174 * that should remain running. These are background services apps have 2175 * started, not something the user is aware of, so they may be killed by 2176 * the system relatively freely (though it is generally desired that they 2177 * stay running as long as they want to). 2178 */ 2179 public static final int IMPORTANCE_SERVICE = 300; 2180 2181 /** 2182 * Constant for {@link #importance}: This process process contains 2183 * background code that is expendable. 2184 */ 2185 public static final int IMPORTANCE_BACKGROUND = 400; 2186 2187 /** 2188 * Constant for {@link #importance}: This process is empty of any 2189 * actively running code. 2190 */ 2191 public static final int IMPORTANCE_EMPTY = 500; 2192 2193 /** 2194 * Constant for {@link #importance}: This process does not exist. 2195 */ 2196 public static final int IMPORTANCE_GONE = 1000; 2197 2198 /** @hide */ 2199 public static int procStateToImportance(int procState) { 2200 if (procState == PROCESS_STATE_NONEXISTENT) { 2201 return IMPORTANCE_GONE; 2202 } else if (procState >= PROCESS_STATE_HOME) { 2203 return IMPORTANCE_BACKGROUND; 2204 } else if (procState >= PROCESS_STATE_SERVICE) { 2205 return IMPORTANCE_SERVICE; 2206 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 2207 return IMPORTANCE_CANT_SAVE_STATE; 2208 } else if (procState >= PROCESS_STATE_IMPORTANT_BACKGROUND) { 2209 return IMPORTANCE_PERCEPTIBLE; 2210 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 2211 return IMPORTANCE_VISIBLE; 2212 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 2213 return IMPORTANCE_TOP_SLEEPING; 2214 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 2215 return IMPORTANCE_FOREGROUND_SERVICE; 2216 } else { 2217 return IMPORTANCE_FOREGROUND; 2218 } 2219 } 2220 2221 /** 2222 * The relative importance level that the system places on this 2223 * process. May be one of {@link #IMPORTANCE_FOREGROUND}, 2224 * {@link #IMPORTANCE_VISIBLE}, {@link #IMPORTANCE_SERVICE}, 2225 * {@link #IMPORTANCE_BACKGROUND}, or {@link #IMPORTANCE_EMPTY}. These 2226 * constants are numbered so that "more important" values are always 2227 * smaller than "less important" values. 2228 */ 2229 public int importance; 2230 2231 /** 2232 * An additional ordering within a particular {@link #importance} 2233 * category, providing finer-grained information about the relative 2234 * utility of processes within a category. This number means nothing 2235 * except that a smaller values are more recently used (and thus 2236 * more important). Currently an LRU value is only maintained for 2237 * the {@link #IMPORTANCE_BACKGROUND} category, though others may 2238 * be maintained in the future. 2239 */ 2240 public int lru; 2241 2242 /** 2243 * Constant for {@link #importanceReasonCode}: nothing special has 2244 * been specified for the reason for this level. 2245 */ 2246 public static final int REASON_UNKNOWN = 0; 2247 2248 /** 2249 * Constant for {@link #importanceReasonCode}: one of the application's 2250 * content providers is being used by another process. The pid of 2251 * the client process is in {@link #importanceReasonPid} and the 2252 * target provider in this process is in 2253 * {@link #importanceReasonComponent}. 2254 */ 2255 public static final int REASON_PROVIDER_IN_USE = 1; 2256 2257 /** 2258 * Constant for {@link #importanceReasonCode}: one of the application's 2259 * content providers is being used by another process. The pid of 2260 * the client process is in {@link #importanceReasonPid} and the 2261 * target provider in this process is in 2262 * {@link #importanceReasonComponent}. 2263 */ 2264 public static final int REASON_SERVICE_IN_USE = 2; 2265 2266 /** 2267 * The reason for {@link #importance}, if any. 2268 */ 2269 public int importanceReasonCode; 2270 2271 /** 2272 * For the specified values of {@link #importanceReasonCode}, this 2273 * is the process ID of the other process that is a client of this 2274 * process. This will be 0 if no other process is using this one. 2275 */ 2276 public int importanceReasonPid; 2277 2278 /** 2279 * For the specified values of {@link #importanceReasonCode}, this 2280 * is the name of the component that is being used in this process. 2281 */ 2282 public ComponentName importanceReasonComponent; 2283 2284 /** 2285 * When {@link #importanceReasonPid} is non-0, this is the importance 2286 * of the other pid. @hide 2287 */ 2288 public int importanceReasonImportance; 2289 2290 /** 2291 * Current process state, as per PROCESS_STATE_* constants. 2292 * @hide 2293 */ 2294 public int processState; 2295 2296 public RunningAppProcessInfo() { 2297 importance = IMPORTANCE_FOREGROUND; 2298 importanceReasonCode = REASON_UNKNOWN; 2299 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 2300 } 2301 2302 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 2303 processName = pProcessName; 2304 pid = pPid; 2305 pkgList = pArr; 2306 } 2307 2308 public int describeContents() { 2309 return 0; 2310 } 2311 2312 public void writeToParcel(Parcel dest, int flags) { 2313 dest.writeString(processName); 2314 dest.writeInt(pid); 2315 dest.writeInt(uid); 2316 dest.writeStringArray(pkgList); 2317 dest.writeInt(this.flags); 2318 dest.writeInt(lastTrimLevel); 2319 dest.writeInt(importance); 2320 dest.writeInt(lru); 2321 dest.writeInt(importanceReasonCode); 2322 dest.writeInt(importanceReasonPid); 2323 ComponentName.writeToParcel(importanceReasonComponent, dest); 2324 dest.writeInt(importanceReasonImportance); 2325 dest.writeInt(processState); 2326 } 2327 2328 public void readFromParcel(Parcel source) { 2329 processName = source.readString(); 2330 pid = source.readInt(); 2331 uid = source.readInt(); 2332 pkgList = source.readStringArray(); 2333 flags = source.readInt(); 2334 lastTrimLevel = source.readInt(); 2335 importance = source.readInt(); 2336 lru = source.readInt(); 2337 importanceReasonCode = source.readInt(); 2338 importanceReasonPid = source.readInt(); 2339 importanceReasonComponent = ComponentName.readFromParcel(source); 2340 importanceReasonImportance = source.readInt(); 2341 processState = source.readInt(); 2342 } 2343 2344 public static final Creator<RunningAppProcessInfo> CREATOR = 2345 new Creator<RunningAppProcessInfo>() { 2346 public RunningAppProcessInfo createFromParcel(Parcel source) { 2347 return new RunningAppProcessInfo(source); 2348 } 2349 public RunningAppProcessInfo[] newArray(int size) { 2350 return new RunningAppProcessInfo[size]; 2351 } 2352 }; 2353 2354 private RunningAppProcessInfo(Parcel source) { 2355 readFromParcel(source); 2356 } 2357 } 2358 2359 /** 2360 * Returns a list of application processes installed on external media 2361 * that are running on the device. 2362 * 2363 * <p><b>Note: this method is only intended for debugging or building 2364 * a user-facing process management UI.</b></p> 2365 * 2366 * @return Returns a list of ApplicationInfo records, or null if none 2367 * This list ordering is not specified. 2368 * @hide 2369 */ 2370 public List<ApplicationInfo> getRunningExternalApplications() { 2371 try { 2372 return ActivityManagerNative.getDefault().getRunningExternalApplications(); 2373 } catch (RemoteException e) { 2374 return null; 2375 } 2376 } 2377 2378 /** 2379 * Sets the memory trim mode for a process and schedules a memory trim operation. 2380 * 2381 * <p><b>Note: this method is only intended for testing framework.</b></p> 2382 * 2383 * @return Returns true if successful. 2384 * @hide 2385 */ 2386 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 2387 try { 2388 return ActivityManagerNative.getDefault().setProcessMemoryTrimLevel(process, userId, 2389 level); 2390 } catch (RemoteException e) { 2391 return false; 2392 } 2393 } 2394 2395 /** 2396 * Returns a list of application processes that are running on the device. 2397 * 2398 * <p><b>Note: this method is only intended for debugging or building 2399 * a user-facing process management UI.</b></p> 2400 * 2401 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 2402 * running processes (it will not return an empty list). This list ordering is not 2403 * specified. 2404 */ 2405 public List<RunningAppProcessInfo> getRunningAppProcesses() { 2406 try { 2407 return ActivityManagerNative.getDefault().getRunningAppProcesses(); 2408 } catch (RemoteException e) { 2409 return null; 2410 } 2411 } 2412 2413 /** 2414 * Return the importance of a given package name, based on the processes that are 2415 * currently running. The return value is one of the importance constants defined 2416 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 2417 * processes that this package has code running inside of. If there are no processes 2418 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 2419 * @hide 2420 */ 2421 @SystemApi 2422 public int getPackageImportance(String packageName) { 2423 try { 2424 int procState = ActivityManagerNative.getDefault().getPackageProcessState(packageName, 2425 mContext.getOpPackageName()); 2426 return RunningAppProcessInfo.procStateToImportance(procState); 2427 } catch (RemoteException e) { 2428 return RunningAppProcessInfo.IMPORTANCE_GONE; 2429 } 2430 } 2431 2432 /** 2433 * Return global memory state information for the calling process. This 2434 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 2435 * only fields that will be filled in are 2436 * {@link RunningAppProcessInfo#pid}, 2437 * {@link RunningAppProcessInfo#uid}, 2438 * {@link RunningAppProcessInfo#lastTrimLevel}, 2439 * {@link RunningAppProcessInfo#importance}, 2440 * {@link RunningAppProcessInfo#lru}, and 2441 * {@link RunningAppProcessInfo#importanceReasonCode}. 2442 */ 2443 static public void getMyMemoryState(RunningAppProcessInfo outState) { 2444 try { 2445 ActivityManagerNative.getDefault().getMyMemoryState(outState); 2446 } catch (RemoteException e) { 2447 } 2448 } 2449 2450 /** 2451 * Return information about the memory usage of one or more processes. 2452 * 2453 * <p><b>Note: this method is only intended for debugging or building 2454 * a user-facing process management UI.</b></p> 2455 * 2456 * @param pids The pids of the processes whose memory usage is to be 2457 * retrieved. 2458 * @return Returns an array of memory information, one for each 2459 * requested pid. 2460 */ 2461 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 2462 try { 2463 return ActivityManagerNative.getDefault().getProcessMemoryInfo(pids); 2464 } catch (RemoteException e) { 2465 return null; 2466 } 2467 } 2468 2469 /** 2470 * @deprecated This is now just a wrapper for 2471 * {@link #killBackgroundProcesses(String)}; the previous behavior here 2472 * is no longer available to applications because it allows them to 2473 * break other applications by removing their alarms, stopping their 2474 * services, etc. 2475 */ 2476 @Deprecated 2477 public void restartPackage(String packageName) { 2478 killBackgroundProcesses(packageName); 2479 } 2480 2481 /** 2482 * Have the system immediately kill all background processes associated 2483 * with the given package. This is the same as the kernel killing those 2484 * processes to reclaim memory; the system will take care of restarting 2485 * these processes in the future as needed. 2486 * 2487 * <p>You must hold the permission 2488 * {@link android.Manifest.permission#KILL_BACKGROUND_PROCESSES} to be able to 2489 * call this method. 2490 * 2491 * @param packageName The name of the package whose processes are to 2492 * be killed. 2493 */ 2494 public void killBackgroundProcesses(String packageName) { 2495 try { 2496 ActivityManagerNative.getDefault().killBackgroundProcesses(packageName, 2497 UserHandle.myUserId()); 2498 } catch (RemoteException e) { 2499 } 2500 } 2501 2502 /** 2503 * Kills the specified UID. 2504 * @param uid The UID to kill. 2505 * @param reason The reason for the kill. 2506 * 2507 * @hide 2508 */ 2509 @SystemApi 2510 @RequiresPermission(Manifest.permission.KILL_UID) 2511 public void killUid(int uid, String reason) { 2512 try { 2513 ActivityManagerNative.getDefault().killUid(uid, reason); 2514 } catch (RemoteException e) { 2515 Log.e(TAG, "Couldn't kill uid:" + uid, e); 2516 } 2517 } 2518 2519 /** 2520 * Have the system perform a force stop of everything associated with 2521 * the given application package. All processes that share its uid 2522 * will be killed, all services it has running stopped, all activities 2523 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 2524 * broadcast will be sent, so that any of its registered alarms can 2525 * be stopped, notifications removed, etc. 2526 * 2527 * <p>You must hold the permission 2528 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 2529 * call this method. 2530 * 2531 * @param packageName The name of the package to be stopped. 2532 * @param userId The user for which the running package is to be stopped. 2533 * 2534 * @hide This is not available to third party applications due to 2535 * it allowing them to break other applications by stopping their 2536 * services, removing their alarms, etc. 2537 */ 2538 public void forceStopPackageAsUser(String packageName, int userId) { 2539 try { 2540 ActivityManagerNative.getDefault().forceStopPackage(packageName, userId); 2541 } catch (RemoteException e) { 2542 } 2543 } 2544 2545 /** 2546 * @see #forceStopPackageAsUser(String, int) 2547 * @hide 2548 */ 2549 public void forceStopPackage(String packageName) { 2550 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 2551 } 2552 2553 /** 2554 * Get the device configuration attributes. 2555 */ 2556 public ConfigurationInfo getDeviceConfigurationInfo() { 2557 try { 2558 return ActivityManagerNative.getDefault().getDeviceConfigurationInfo(); 2559 } catch (RemoteException e) { 2560 } 2561 return null; 2562 } 2563 2564 /** 2565 * Get the preferred density of icons for the launcher. This is used when 2566 * custom drawables are created (e.g., for shortcuts). 2567 * 2568 * @return density in terms of DPI 2569 */ 2570 public int getLauncherLargeIconDensity() { 2571 final Resources res = mContext.getResources(); 2572 final int density = res.getDisplayMetrics().densityDpi; 2573 final int sw = res.getConfiguration().smallestScreenWidthDp; 2574 2575 if (sw < 600) { 2576 // Smaller than approx 7" tablets, use the regular icon size. 2577 return density; 2578 } 2579 2580 switch (density) { 2581 case DisplayMetrics.DENSITY_LOW: 2582 return DisplayMetrics.DENSITY_MEDIUM; 2583 case DisplayMetrics.DENSITY_MEDIUM: 2584 return DisplayMetrics.DENSITY_HIGH; 2585 case DisplayMetrics.DENSITY_TV: 2586 return DisplayMetrics.DENSITY_XHIGH; 2587 case DisplayMetrics.DENSITY_HIGH: 2588 return DisplayMetrics.DENSITY_XHIGH; 2589 case DisplayMetrics.DENSITY_XHIGH: 2590 return DisplayMetrics.DENSITY_XXHIGH; 2591 case DisplayMetrics.DENSITY_XXHIGH: 2592 return DisplayMetrics.DENSITY_XHIGH * 2; 2593 default: 2594 // The density is some abnormal value. Return some other 2595 // abnormal value that is a reasonable scaling of it. 2596 return (int)((density*1.5f)+.5f); 2597 } 2598 } 2599 2600 /** 2601 * Get the preferred launcher icon size. This is used when custom drawables 2602 * are created (e.g., for shortcuts). 2603 * 2604 * @return dimensions of square icons in terms of pixels 2605 */ 2606 public int getLauncherLargeIconSize() { 2607 return getLauncherLargeIconSizeInner(mContext); 2608 } 2609 2610 static int getLauncherLargeIconSizeInner(Context context) { 2611 final Resources res = context.getResources(); 2612 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 2613 final int sw = res.getConfiguration().smallestScreenWidthDp; 2614 2615 if (sw < 600) { 2616 // Smaller than approx 7" tablets, use the regular icon size. 2617 return size; 2618 } 2619 2620 final int density = res.getDisplayMetrics().densityDpi; 2621 2622 switch (density) { 2623 case DisplayMetrics.DENSITY_LOW: 2624 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 2625 case DisplayMetrics.DENSITY_MEDIUM: 2626 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 2627 case DisplayMetrics.DENSITY_TV: 2628 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 2629 case DisplayMetrics.DENSITY_HIGH: 2630 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 2631 case DisplayMetrics.DENSITY_XHIGH: 2632 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 2633 case DisplayMetrics.DENSITY_XXHIGH: 2634 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 2635 default: 2636 // The density is some abnormal value. Return some other 2637 // abnormal value that is a reasonable scaling of it. 2638 return (int)((size*1.5f) + .5f); 2639 } 2640 } 2641 2642 /** 2643 * Returns "true" if the user interface is currently being messed with 2644 * by a monkey. 2645 */ 2646 public static boolean isUserAMonkey() { 2647 try { 2648 return ActivityManagerNative.getDefault().isUserAMonkey(); 2649 } catch (RemoteException e) { 2650 } 2651 return false; 2652 } 2653 2654 /** 2655 * Returns "true" if device is running in a test harness. 2656 */ 2657 public static boolean isRunningInTestHarness() { 2658 return SystemProperties.getBoolean("ro.test_harness", false); 2659 } 2660 2661 /** 2662 * Returns the launch count of each installed package. 2663 * 2664 * @hide 2665 */ 2666 /*public Map<String, Integer> getAllPackageLaunchCounts() { 2667 try { 2668 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 2669 ServiceManager.getService("usagestats")); 2670 if (usageStatsService == null) { 2671 return new HashMap<String, Integer>(); 2672 } 2673 2674 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 2675 ActivityThread.currentPackageName()); 2676 if (allPkgUsageStats == null) { 2677 return new HashMap<String, Integer>(); 2678 } 2679 2680 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 2681 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 2682 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 2683 } 2684 2685 return launchCounts; 2686 } catch (RemoteException e) { 2687 Log.w(TAG, "Could not query launch counts", e); 2688 return new HashMap<String, Integer>(); 2689 } 2690 }*/ 2691 2692 /** @hide */ 2693 public static int checkComponentPermission(String permission, int uid, 2694 int owningUid, boolean exported) { 2695 // Root, system server get to do everything. 2696 final int appId = UserHandle.getAppId(uid); 2697 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 2698 return PackageManager.PERMISSION_GRANTED; 2699 } 2700 // Isolated processes don't get any permissions. 2701 if (UserHandle.isIsolated(uid)) { 2702 return PackageManager.PERMISSION_DENIED; 2703 } 2704 // If there is a uid that owns whatever is being accessed, it has 2705 // blanket access to it regardless of the permissions it requires. 2706 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 2707 return PackageManager.PERMISSION_GRANTED; 2708 } 2709 // If the target is not exported, then nobody else can get to it. 2710 if (!exported) { 2711 /* 2712 RuntimeException here = new RuntimeException("here"); 2713 here.fillInStackTrace(); 2714 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 2715 here); 2716 */ 2717 return PackageManager.PERMISSION_DENIED; 2718 } 2719 if (permission == null) { 2720 return PackageManager.PERMISSION_GRANTED; 2721 } 2722 try { 2723 return AppGlobals.getPackageManager() 2724 .checkUidPermission(permission, uid); 2725 } catch (RemoteException e) { 2726 // Should never happen, but if it does... deny! 2727 Slog.e(TAG, "PackageManager is dead?!?", e); 2728 } 2729 return PackageManager.PERMISSION_DENIED; 2730 } 2731 2732 /** @hide */ 2733 public static int checkUidPermission(String permission, int uid) { 2734 try { 2735 return AppGlobals.getPackageManager() 2736 .checkUidPermission(permission, uid); 2737 } catch (RemoteException e) { 2738 // Should never happen, but if it does... deny! 2739 Slog.e(TAG, "PackageManager is dead?!?", e); 2740 } 2741 return PackageManager.PERMISSION_DENIED; 2742 } 2743 2744 /** 2745 * @hide 2746 * Helper for dealing with incoming user arguments to system service calls. 2747 * Takes care of checking permissions and converting USER_CURRENT to the 2748 * actual current user. 2749 * 2750 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 2751 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 2752 * @param userId The user id argument supplied by the caller -- this is the user 2753 * they want to run as. 2754 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 2755 * to get a USER_ALL returned and deal with it correctly. If false, 2756 * an exception will be thrown if USER_ALL is supplied. 2757 * @param requireFull If true, the caller must hold 2758 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 2759 * different user than their current process; otherwise they must hold 2760 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 2761 * @param name Optional textual name of the incoming call; only for generating error messages. 2762 * @param callerPackage Optional package name of caller; only for error messages. 2763 * 2764 * @return Returns the user ID that the call should run as. Will always be a concrete 2765 * user number, unless <var>allowAll</var> is true in which case it could also be 2766 * USER_ALL. 2767 */ 2768 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 2769 boolean allowAll, boolean requireFull, String name, String callerPackage) { 2770 if (UserHandle.getUserId(callingUid) == userId) { 2771 return userId; 2772 } 2773 try { 2774 return ActivityManagerNative.getDefault().handleIncomingUser(callingPid, 2775 callingUid, userId, allowAll, requireFull, name, callerPackage); 2776 } catch (RemoteException e) { 2777 throw new SecurityException("Failed calling activity manager", e); 2778 } 2779 } 2780 2781 /** 2782 * Gets the userId of the current foreground user. Requires system permissions. 2783 * @hide 2784 */ 2785 @SystemApi 2786 public static int getCurrentUser() { 2787 UserInfo ui; 2788 try { 2789 ui = ActivityManagerNative.getDefault().getCurrentUser(); 2790 return ui != null ? ui.id : 0; 2791 } catch (RemoteException e) { 2792 return 0; 2793 } 2794 } 2795 2796 /** 2797 * @param userid the user's id. Zero indicates the default user. 2798 * @hide 2799 */ 2800 public boolean switchUser(int userid) { 2801 try { 2802 return ActivityManagerNative.getDefault().switchUser(userid); 2803 } catch (RemoteException e) { 2804 return false; 2805 } 2806 } 2807 2808 /** 2809 * Return whether the given user is actively running. This means that 2810 * the user is in the "started" state, not "stopped" -- it is currently 2811 * allowed to run code through scheduled alarms, receiving broadcasts, 2812 * etc. A started user may be either the current foreground user or a 2813 * background user; the result here does not distinguish between the two. 2814 * @param userid the user's id. Zero indicates the default user. 2815 * @hide 2816 */ 2817 public boolean isUserRunning(int userid) { 2818 try { 2819 return ActivityManagerNative.getDefault().isUserRunning(userid, false); 2820 } catch (RemoteException e) { 2821 return false; 2822 } 2823 } 2824 2825 /** 2826 * Perform a system dump of various state associated with the given application 2827 * package name. This call blocks while the dump is being performed, so should 2828 * not be done on a UI thread. The data will be written to the given file 2829 * descriptor as text. An application must hold the 2830 * {@link android.Manifest.permission#DUMP} permission to make this call. 2831 * @param fd The file descriptor that the dump should be written to. The file 2832 * descriptor is <em>not</em> closed by this function; the caller continues to 2833 * own it. 2834 * @param packageName The name of the package that is to be dumped. 2835 */ 2836 public void dumpPackageState(FileDescriptor fd, String packageName) { 2837 dumpPackageStateStatic(fd, packageName); 2838 } 2839 2840 /** 2841 * @hide 2842 */ 2843 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 2844 FileOutputStream fout = new FileOutputStream(fd); 2845 PrintWriter pw = new FastPrintWriter(fout); 2846 dumpService(pw, fd, "package", new String[] { packageName }); 2847 pw.println(); 2848 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 2849 "-a", "package", packageName }); 2850 pw.println(); 2851 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 2852 pw.println(); 2853 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 2854 pw.println(); 2855 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 2856 pw.println(); 2857 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 2858 pw.flush(); 2859 } 2860 2861 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 2862 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 2863 IBinder service = ServiceManager.checkService(name); 2864 if (service == null) { 2865 pw.println(" (Service not found)"); 2866 return; 2867 } 2868 TransferPipe tp = null; 2869 try { 2870 pw.flush(); 2871 tp = new TransferPipe(); 2872 tp.setBufferPrefix(" "); 2873 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 2874 tp.go(fd, 10000); 2875 } catch (Throwable e) { 2876 if (tp != null) { 2877 tp.kill(); 2878 } 2879 pw.println("Failure dumping service:"); 2880 e.printStackTrace(pw); 2881 } 2882 } 2883 2884 /** 2885 * Request that the system start watching for the calling process to exceed a pss 2886 * size as given here. Once called, the system will look for any occasions where it 2887 * sees the associated process with a larger pss size and, when this happens, automatically 2888 * pull a heap dump from it and allow the user to share the data. Note that this request 2889 * continues running even if the process is killed and restarted. To remove the watch, 2890 * use {@link #clearWatchHeapLimit()}. 2891 * 2892 * <p>This API only work if the calling process has been marked as 2893 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 2894 * (userdebug or eng) build.</p> 2895 * 2896 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 2897 * handle heap limit reports themselves.</p> 2898 * 2899 * @param pssSize The size in bytes to set the limit at. 2900 */ 2901 public void setWatchHeapLimit(long pssSize) { 2902 try { 2903 ActivityManagerNative.getDefault().setDumpHeapDebugLimit(null, 0, pssSize, 2904 mContext.getPackageName()); 2905 } catch (RemoteException e) { 2906 } 2907 } 2908 2909 /** 2910 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 2911 * If your package has an activity handling this action, it will be launched with the 2912 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 2913 * match the activty must support this action and a MIME type of "*/*". 2914 */ 2915 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 2916 2917 /** 2918 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 2919 */ 2920 public void clearWatchHeapLimit() { 2921 try { 2922 ActivityManagerNative.getDefault().setDumpHeapDebugLimit(null, 0, 0, null); 2923 } catch (RemoteException e) { 2924 } 2925 } 2926 2927 /** 2928 * @hide 2929 */ 2930 public void startLockTaskMode(int taskId) { 2931 try { 2932 ActivityManagerNative.getDefault().startLockTaskMode(taskId); 2933 } catch (RemoteException e) { 2934 } 2935 } 2936 2937 /** 2938 * @hide 2939 */ 2940 public void stopLockTaskMode() { 2941 try { 2942 ActivityManagerNative.getDefault().stopLockTaskMode(); 2943 } catch (RemoteException e) { 2944 } 2945 } 2946 2947 /** 2948 * Return whether currently in lock task mode. When in this mode 2949 * no new tasks can be created or switched to. 2950 * 2951 * @see Activity#startLockTask() 2952 * 2953 * @deprecated Use {@link #getLockTaskModeState} instead. 2954 */ 2955 public boolean isInLockTaskMode() { 2956 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 2957 } 2958 2959 /** 2960 * Return the current state of task locking. The three possible outcomes 2961 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 2962 * and {@link #LOCK_TASK_MODE_PINNED}. 2963 * 2964 * @see Activity#startLockTask() 2965 */ 2966 public int getLockTaskModeState() { 2967 try { 2968 return ActivityManagerNative.getDefault().getLockTaskModeState(); 2969 } catch (RemoteException e) { 2970 return ActivityManager.LOCK_TASK_MODE_NONE; 2971 } 2972 } 2973 2974 /** 2975 * The AppTask allows you to manage your own application's tasks. 2976 * See {@link android.app.ActivityManager#getAppTasks()} 2977 */ 2978 public static class AppTask { 2979 private IAppTask mAppTaskImpl; 2980 2981 /** @hide */ 2982 public AppTask(IAppTask task) { 2983 mAppTaskImpl = task; 2984 } 2985 2986 /** 2987 * Finishes all activities in this task and removes it from the recent tasks list. 2988 */ 2989 public void finishAndRemoveTask() { 2990 try { 2991 mAppTaskImpl.finishAndRemoveTask(); 2992 } catch (RemoteException e) { 2993 Slog.e(TAG, "Invalid AppTask", e); 2994 } 2995 } 2996 2997 /** 2998 * Get the RecentTaskInfo associated with this task. 2999 * 3000 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 3001 */ 3002 public RecentTaskInfo getTaskInfo() { 3003 try { 3004 return mAppTaskImpl.getTaskInfo(); 3005 } catch (RemoteException e) { 3006 Slog.e(TAG, "Invalid AppTask", e); 3007 return null; 3008 } 3009 } 3010 3011 /** 3012 * Bring this task to the foreground. If it contains activities, they will be 3013 * brought to the foreground with it and their instances re-created if needed. 3014 * If it doesn't contain activities, the root activity of the task will be 3015 * re-launched. 3016 */ 3017 public void moveToFront() { 3018 try { 3019 mAppTaskImpl.moveToFront(); 3020 } catch (RemoteException e) { 3021 Slog.e(TAG, "Invalid AppTask", e); 3022 } 3023 } 3024 3025 /** 3026 * Start an activity in this task. Brings the task to the foreground. If this task 3027 * is not currently active (that is, its id < 0), then a new activity for the given 3028 * Intent will be launched as the root of the task and the task brought to the 3029 * foreground. Otherwise, if this task is currently active and the Intent does not specify 3030 * an activity to launch in a new task, then a new activity for the given Intent will 3031 * be launched on top of the task and the task brought to the foreground. If this 3032 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 3033 * or would otherwise be launched in to a new task, then the activity not launched but 3034 * this task be brought to the foreground and a new intent delivered to the top 3035 * activity if appropriate. 3036 * 3037 * <p>In other words, you generally want to use an Intent here that does not specify 3038 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 3039 * and let the system do the right thing.</p> 3040 * 3041 * @param intent The Intent describing the new activity to be launched on the task. 3042 * @param options Optional launch options. 3043 * 3044 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 3045 */ 3046 public void startActivity(Context context, Intent intent, Bundle options) { 3047 ActivityThread thread = ActivityThread.currentActivityThread(); 3048 thread.getInstrumentation().execStartActivityFromAppTask(context, 3049 thread.getApplicationThread(), mAppTaskImpl, intent, options); 3050 } 3051 3052 /** 3053 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 3054 * Intent of this AppTask. 3055 * 3056 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 3057 * be set; otherwise, it will be cleared. 3058 */ 3059 public void setExcludeFromRecents(boolean exclude) { 3060 try { 3061 mAppTaskImpl.setExcludeFromRecents(exclude); 3062 } catch (RemoteException e) { 3063 Slog.e(TAG, "Invalid AppTask", e); 3064 } 3065 } 3066 } 3067} 3068