ActivityStackSupervisor.java revision 681fc7b2670542aae0f3b9ef8f6c7a88db984ea9
1/* 2 * Copyright (C) 2013 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 com.android.server.am; 18 19import android.Manifest; 20import android.app.Activity; 21import android.app.ActivityManager; 22import android.app.ActivityManager.RunningTaskInfo; 23import android.app.ActivityManager.StackId; 24import android.app.ActivityManager.StackInfo; 25import android.app.ActivityOptions; 26import android.app.AppGlobals; 27import android.app.AppOpsManager; 28import android.app.IActivityContainer; 29import android.app.IActivityContainerCallback; 30import android.app.IActivityManager; 31import android.app.IActivityManager.WaitResult; 32import android.app.ProfilerInfo; 33import android.app.ResultInfo; 34import android.app.StatusBarManager; 35import android.app.admin.IDevicePolicyManager; 36import android.content.ComponentName; 37import android.content.Context; 38import android.content.IIntentSender; 39import android.content.Intent; 40import android.content.pm.ActivityInfo; 41import android.content.pm.ApplicationInfo; 42import android.content.pm.PackageInfo; 43import android.content.pm.PackageManager; 44import android.content.pm.ResolveInfo; 45import android.content.pm.UserInfo; 46import android.content.res.Configuration; 47import android.graphics.Rect; 48import android.hardware.display.DisplayManager; 49import android.hardware.display.DisplayManager.DisplayListener; 50import android.hardware.display.DisplayManagerGlobal; 51import android.hardware.display.VirtualDisplay; 52import android.hardware.input.InputManager; 53import android.hardware.input.InputManagerInternal; 54import android.os.Binder; 55import android.os.Bundle; 56import android.os.Debug; 57import android.os.Handler; 58import android.os.IBinder; 59import android.os.Looper; 60import android.os.Message; 61import android.os.ParcelFileDescriptor; 62import android.os.PowerManager; 63import android.os.Process; 64import android.os.RemoteException; 65import android.os.ServiceManager; 66import android.os.SystemClock; 67import android.os.Trace; 68import android.os.TransactionTooLargeException; 69import android.os.UserHandle; 70import android.os.UserManager; 71import android.os.WorkSource; 72import android.provider.MediaStore; 73import android.provider.Settings; 74import android.provider.Settings.SettingNotFoundException; 75import android.service.voice.IVoiceInteractionSession; 76import android.util.ArrayMap; 77import android.util.ArraySet; 78import android.util.EventLog; 79import android.util.Slog; 80import android.util.SparseArray; 81import android.util.SparseIntArray; 82import android.view.Display; 83import android.view.DisplayInfo; 84import android.view.InputEvent; 85import android.view.Surface; 86 87import com.android.internal.content.ReferrerIntent; 88import com.android.internal.os.TransferPipe; 89import com.android.internal.statusbar.IStatusBarService; 90import com.android.internal.util.ArrayUtils; 91import com.android.internal.widget.LockPatternUtils; 92import com.android.server.LocalServices; 93import com.android.server.am.ActivityStack.ActivityState; 94import com.android.server.wm.WindowManagerService; 95 96import java.io.FileDescriptor; 97import java.io.IOException; 98import java.io.PrintWriter; 99import java.util.ArrayList; 100import java.util.Arrays; 101import java.util.Collections; 102import java.util.List; 103import java.util.Objects; 104import java.util.Set; 105 106import static android.Manifest.permission.START_ANY_ACTIVITY; 107import static android.Manifest.permission.START_TASKS_FROM_RECENTS; 108import static android.app.ActivityManager.LOCK_TASK_MODE_LOCKED; 109import static android.app.ActivityManager.LOCK_TASK_MODE_NONE; 110import static android.app.ActivityManager.LOCK_TASK_MODE_PINNED; 111import static android.app.ActivityManager.RESIZE_MODE_FORCED; 112import static android.app.ActivityManager.RESIZE_MODE_SYSTEM; 113import static android.app.ActivityManager.StackId.DOCKED_STACK_ID; 114import static android.app.ActivityManager.StackId.FIRST_DYNAMIC_STACK_ID; 115import static android.app.ActivityManager.StackId.FIRST_STATIC_STACK_ID; 116import static android.app.ActivityManager.StackId.FREEFORM_WORKSPACE_STACK_ID; 117import static android.app.ActivityManager.StackId.FULLSCREEN_WORKSPACE_STACK_ID; 118import static android.app.ActivityManager.StackId.HOME_STACK_ID; 119import static android.app.ActivityManager.StackId.INVALID_STACK_ID; 120import static android.app.ActivityManager.StackId.LAST_STATIC_STACK_ID; 121import static android.app.ActivityManager.StackId.PINNED_STACK_ID; 122import static android.content.Intent.FLAG_ACTIVITY_MULTIPLE_TASK; 123import static android.content.Intent.FLAG_ACTIVITY_NEW_TASK; 124import static android.content.pm.ActivityInfo.FLAG_SHOW_FOR_ALL_USERS; 125import static android.content.pm.ActivityInfo.RESIZE_MODE_FORCE_RESIZEABLE; 126import static android.content.pm.PackageManager.PERMISSION_GRANTED; 127import static android.os.Trace.TRACE_TAG_ACTIVITY_MANAGER; 128import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_ALL; 129import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_CONTAINERS; 130import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_IDLE; 131import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_LOCKSCREEN; 132import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_LOCKTASK; 133import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_PAUSE; 134import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_RECENTS; 135import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_RELEASE; 136import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_STACK; 137import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_STATES; 138import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_SWITCH; 139import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_TASKS; 140import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_VISIBLE_BEHIND; 141import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_CONTAINERS; 142import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_IDLE; 143import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_LOCKTASK; 144import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_PAUSE; 145import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_RECENTS; 146import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_RELEASE; 147import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_STACK; 148import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_STATES; 149import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_SWITCH; 150import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_TASKS; 151import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_VISIBLE_BEHIND; 152import static com.android.server.am.ActivityManagerDebugConfig.TAG_AM; 153import static com.android.server.am.ActivityManagerDebugConfig.TAG_WITH_CLASS_NAME; 154import static com.android.server.am.ActivityManagerService.ANIMATE; 155import static com.android.server.am.ActivityManagerService.FIRST_SUPERVISOR_STACK_MSG; 156import static com.android.server.am.ActivityManagerService.NOTIFY_ACTIVITY_DISMISSING_DOCKED_STACK_MSG; 157import static com.android.server.am.ActivityManagerService.NOTIFY_FORCED_RESIZABLE_MSG; 158import static com.android.server.am.ActivityRecord.APPLICATION_ACTIVITY_TYPE; 159import static com.android.server.am.ActivityRecord.HOME_ACTIVITY_TYPE; 160import static com.android.server.am.ActivityRecord.RECENTS_ACTIVITY_TYPE; 161import static com.android.server.am.ActivityStack.ActivityState.DESTROYED; 162import static com.android.server.am.ActivityStack.ActivityState.DESTROYING; 163import static com.android.server.am.ActivityStack.ActivityState.INITIALIZING; 164import static com.android.server.am.ActivityStack.ActivityState.PAUSED; 165import static com.android.server.am.ActivityStack.ActivityState.PAUSING; 166import static com.android.server.am.ActivityStack.ActivityState.RESUMED; 167import static com.android.server.am.ActivityStack.ActivityState.STOPPED; 168import static com.android.server.am.ActivityStack.ActivityState.STOPPING; 169import static com.android.server.am.TaskRecord.LOCK_TASK_AUTH_DONT_LOCK; 170import static com.android.server.am.TaskRecord.LOCK_TASK_AUTH_LAUNCHABLE; 171import static com.android.server.am.TaskRecord.LOCK_TASK_AUTH_LAUNCHABLE_PRIV; 172import static com.android.server.am.TaskRecord.LOCK_TASK_AUTH_PINNABLE; 173import static com.android.server.am.TaskRecord.LOCK_TASK_AUTH_WHITELISTED; 174import static com.android.server.wm.AppTransition.TRANSIT_DOCK_TASK_FROM_RECENTS; 175 176public final class ActivityStackSupervisor implements DisplayListener { 177 private static final String TAG = TAG_WITH_CLASS_NAME ? "ActivityStackSupervisor" : TAG_AM; 178 private static final String TAG_CONTAINERS = TAG + POSTFIX_CONTAINERS; 179 private static final String TAG_IDLE = TAG + POSTFIX_IDLE; 180 private static final String TAG_LOCKTASK = TAG + POSTFIX_LOCKTASK; 181 private static final String TAG_PAUSE = TAG + POSTFIX_PAUSE; 182 private static final String TAG_RECENTS = TAG + POSTFIX_RECENTS; 183 private static final String TAG_RELEASE = TAG + POSTFIX_RELEASE; 184 private static final String TAG_STACK = TAG + POSTFIX_STACK; 185 private static final String TAG_STATES = TAG + POSTFIX_STATES; 186 private static final String TAG_SWITCH = TAG + POSTFIX_SWITCH; 187 static final String TAG_TASKS = TAG + POSTFIX_TASKS; 188 private static final String TAG_VISIBLE_BEHIND = TAG + POSTFIX_VISIBLE_BEHIND; 189 190 /** How long we wait until giving up on the last activity telling us it is idle. */ 191 static final int IDLE_TIMEOUT = 10 * 1000; 192 193 /** How long we can hold the sleep wake lock before giving up. */ 194 static final int SLEEP_TIMEOUT = 5 * 1000; 195 196 // How long we can hold the launch wake lock before giving up. 197 static final int LAUNCH_TIMEOUT = 10 * 1000; 198 199 static final int IDLE_TIMEOUT_MSG = FIRST_SUPERVISOR_STACK_MSG; 200 static final int IDLE_NOW_MSG = FIRST_SUPERVISOR_STACK_MSG + 1; 201 static final int RESUME_TOP_ACTIVITY_MSG = FIRST_SUPERVISOR_STACK_MSG + 2; 202 static final int SLEEP_TIMEOUT_MSG = FIRST_SUPERVISOR_STACK_MSG + 3; 203 static final int LAUNCH_TIMEOUT_MSG = FIRST_SUPERVISOR_STACK_MSG + 4; 204 static final int HANDLE_DISPLAY_ADDED = FIRST_SUPERVISOR_STACK_MSG + 5; 205 static final int HANDLE_DISPLAY_CHANGED = FIRST_SUPERVISOR_STACK_MSG + 6; 206 static final int HANDLE_DISPLAY_REMOVED = FIRST_SUPERVISOR_STACK_MSG + 7; 207 static final int CONTAINER_CALLBACK_VISIBILITY = FIRST_SUPERVISOR_STACK_MSG + 8; 208 static final int LOCK_TASK_START_MSG = FIRST_SUPERVISOR_STACK_MSG + 9; 209 static final int LOCK_TASK_END_MSG = FIRST_SUPERVISOR_STACK_MSG + 10; 210 static final int CONTAINER_CALLBACK_TASK_LIST_EMPTY = FIRST_SUPERVISOR_STACK_MSG + 11; 211 static final int LAUNCH_TASK_BEHIND_COMPLETE = FIRST_SUPERVISOR_STACK_MSG + 12; 212 static final int SHOW_LOCK_TASK_ESCAPE_MESSAGE_MSG = FIRST_SUPERVISOR_STACK_MSG + 13; 213 static final int REPORT_MULTI_WINDOW_MODE_CHANGED_MSG = FIRST_SUPERVISOR_STACK_MSG + 14; 214 static final int REPORT_PIP_MODE_CHANGED_MSG = FIRST_SUPERVISOR_STACK_MSG + 15; 215 216 private static final String VIRTUAL_DISPLAY_BASE_NAME = "ActivityViewVirtualDisplay"; 217 218 private static final String LOCK_TASK_TAG = "Lock-to-App"; 219 220 // Used to indicate if an object (e.g. stack) that we are trying to get 221 // should be created if it doesn't exist already. 222 static final boolean CREATE_IF_NEEDED = true; 223 224 // Used to indicate that windows of activities should be preserved during the resize. 225 static final boolean PRESERVE_WINDOWS = true; 226 227 // Used to indicate if an object (e.g. task) should be moved/created 228 // at the top of its container (e.g. stack). 229 static final boolean ON_TOP = true; 230 231 // Used to indicate that an objects (e.g. task) removal from its container 232 // (e.g. stack) is due to it moving to another container. 233 static final boolean MOVING = true; 234 235 // Force the focus to change to the stack we are moving a task to.. 236 static final boolean FORCE_FOCUS = true; 237 238 // Restore task from the saved recents if it can't be found in any live stack. 239 static final boolean RESTORE_FROM_RECENTS = true; 240 241 // Activity actions an app cannot start if it uses a permission which is not granted. 242 private static final ArrayMap<String, String> ACTION_TO_RUNTIME_PERMISSION = 243 new ArrayMap<>(); 244 245 static { 246 ACTION_TO_RUNTIME_PERMISSION.put(MediaStore.ACTION_IMAGE_CAPTURE, 247 Manifest.permission.CAMERA); 248 ACTION_TO_RUNTIME_PERMISSION.put(MediaStore.ACTION_VIDEO_CAPTURE, 249 Manifest.permission.CAMERA); 250 ACTION_TO_RUNTIME_PERMISSION.put(Intent.ACTION_CALL, 251 Manifest.permission.CALL_PHONE); 252 } 253 254 /** Action restriction: launching the activity is not restricted. */ 255 private static final int ACTIVITY_RESTRICTION_NONE = 0; 256 /** Action restriction: launching the activity is restricted by a permission. */ 257 private static final int ACTIVITY_RESTRICTION_PERMISSION = 1; 258 /** Action restriction: launching the activity is restricted by an app op. */ 259 private static final int ACTIVITY_RESTRICTION_APPOP = 2; 260 261 // The height/width divide used when fitting a task within a bounds with method 262 // {@link #fitWithinBounds}. 263 // We always want the task to to be visible in the bounds without affecting its size when 264 // fitting. To make sure this is the case, we don't adjust the task left or top side pass 265 // the input bounds right or bottom side minus the width or height divided by this value. 266 private static final int FIT_WITHIN_BOUNDS_DIVIDER = 3; 267 268 /** Status Bar Service **/ 269 private IBinder mToken = new Binder(); 270 private IStatusBarService mStatusBarService; 271 private IDevicePolicyManager mDevicePolicyManager; 272 273 // For debugging to make sure the caller when acquiring/releasing our 274 // wake lock is the system process. 275 static final boolean VALIDATE_WAKE_LOCK_CALLER = false; 276 /** The number of distinct task ids that can be assigned to the tasks of a single user */ 277 private static final int MAX_TASK_IDS_PER_USER = UserHandle.PER_USER_RANGE; 278 279 final ActivityManagerService mService; 280 281 private RecentTasks mRecentTasks; 282 283 final ActivityStackSupervisorHandler mHandler; 284 285 /** Short cut */ 286 WindowManagerService mWindowManager; 287 DisplayManager mDisplayManager; 288 289 /** Counter for next free stack ID to use for dynamic activity stacks. */ 290 private int mNextFreeStackId = FIRST_DYNAMIC_STACK_ID; 291 292 /** 293 * Maps the task identifier that activities are currently being started in to the userId of the 294 * task. Each time a new task is created, the entry for the userId of the task is incremented 295 */ 296 private final SparseIntArray mCurTaskIdForUser = new SparseIntArray(20); 297 298 /** The current user */ 299 int mCurrentUser; 300 301 /** The stack containing the launcher app. Assumed to always be attached to 302 * Display.DEFAULT_DISPLAY. */ 303 ActivityStack mHomeStack; 304 305 /** The stack currently receiving input or launching the next activity. */ 306 ActivityStack mFocusedStack; 307 308 /** If this is the same as mFocusedStack then the activity on the top of the focused stack has 309 * been resumed. If stacks are changing position this will hold the old stack until the new 310 * stack becomes resumed after which it will be set to mFocusedStack. */ 311 private ActivityStack mLastFocusedStack; 312 313 /** List of activities that are waiting for a new activity to become visible before completing 314 * whatever operation they are supposed to do. */ 315 final ArrayList<ActivityRecord> mWaitingVisibleActivities = new ArrayList<>(); 316 317 /** List of processes waiting to find out about the next visible activity. */ 318 final ArrayList<IActivityManager.WaitResult> mWaitingActivityVisible = new ArrayList<>(); 319 320 /** List of processes waiting to find out about the next launched activity. */ 321 final ArrayList<IActivityManager.WaitResult> mWaitingActivityLaunched = new ArrayList<>(); 322 323 /** List of activities that are ready to be stopped, but waiting for the next activity to 324 * settle down before doing so. */ 325 final ArrayList<ActivityRecord> mStoppingActivities = new ArrayList<>(); 326 327 /** List of activities that are ready to be finished, but waiting for the previous activity to 328 * settle down before doing so. It contains ActivityRecord objects. */ 329 final ArrayList<ActivityRecord> mFinishingActivities = new ArrayList<>(); 330 331 /** List of activities that are in the process of going to sleep. */ 332 final ArrayList<ActivityRecord> mGoingToSleepActivities = new ArrayList<>(); 333 334 /** List of activities whose multi-window mode changed that we need to report to the 335 * application */ 336 final ArrayList<ActivityRecord> mMultiWindowModeChangedActivities = new ArrayList<>(); 337 338 /** List of activities whose picture-in-picture mode changed that we need to report to the 339 * application */ 340 final ArrayList<ActivityRecord> mPipModeChangedActivities = new ArrayList<>(); 341 342 /** Used on user changes */ 343 final ArrayList<UserState> mStartingUsers = new ArrayList<>(); 344 345 /** Used to queue up any background users being started */ 346 final ArrayList<UserState> mStartingBackgroundUsers = new ArrayList<>(); 347 348 /** Set to indicate whether to issue an onUserLeaving callback when a newly launched activity 349 * is being brought in front of us. */ 350 boolean mUserLeaving = false; 351 352 /** Set when we have taken too long waiting to go to sleep. */ 353 boolean mSleepTimeout = false; 354 355 /** 356 * We don't want to allow the device to go to sleep while in the process 357 * of launching an activity. This is primarily to allow alarm intent 358 * receivers to launch an activity and get that to run before the device 359 * goes back to sleep. 360 */ 361 PowerManager.WakeLock mLaunchingActivity; 362 363 /** 364 * Set when the system is going to sleep, until we have 365 * successfully paused the current activity and released our wake lock. 366 * At that point the system is allowed to actually sleep. 367 */ 368 PowerManager.WakeLock mGoingToSleep; 369 370 /** Stack id of the front stack when user switched, indexed by userId. */ 371 SparseIntArray mUserStackInFront = new SparseIntArray(2); 372 373 // TODO: Add listener for removal of references. 374 /** Mapping from (ActivityStack/TaskStack).mStackId to their current state */ 375 private SparseArray<ActivityContainer> mActivityContainers = new SparseArray<>(); 376 377 /** Mapping from displayId to display current state */ 378 private final SparseArray<ActivityDisplay> mActivityDisplays = new SparseArray<>(); 379 380 InputManagerInternal mInputManagerInternal; 381 382 /** The chain of tasks in lockTask mode. The current frontmost task is at the top, and tasks 383 * may be finished until there is only one entry left. If this is empty the system is not 384 * in lockTask mode. */ 385 ArrayList<TaskRecord> mLockTaskModeTasks = new ArrayList<>(); 386 /** Store the current lock task mode. Possible values: 387 * {@link ActivityManager#LOCK_TASK_MODE_NONE}, {@link ActivityManager#LOCK_TASK_MODE_LOCKED}, 388 * {@link ActivityManager#LOCK_TASK_MODE_PINNED} 389 */ 390 private int mLockTaskModeState; 391 /** 392 * Notifies the user when entering/exiting lock-task. 393 */ 394 private LockTaskNotify mLockTaskNotify; 395 396 /** Used to keep resumeTopActivityUncheckedLocked() from being entered recursively */ 397 boolean inResumeTopActivity; 398 399 // temp. rects used during resize calculation so we don't need to create a new object each time. 400 private final Rect tempRect = new Rect(); 401 private final Rect tempRect2 = new Rect(); 402 403 private final SparseArray<Configuration> mTmpConfigs = new SparseArray<>(); 404 private final SparseArray<Rect> mTmpBounds = new SparseArray<>(); 405 private final SparseArray<Rect> mTmpInsetBounds = new SparseArray<>(); 406 407 // The default minimal size that will be used if the activity doesn't specify its minimal size. 408 // It will be calculated when the default display gets added. 409 int mDefaultMinimalSizeOfResizeableTask = -1; 410 411 // Whether tasks have moved and we need to rank the tasks before next OOM scoring 412 private boolean mTaskLayersChanged = true; 413 414 final ActivityMetricsLogger mActivityMetricsLogger; 415 416 private final ResizeDockedStackTimeout mResizeDockedStackTimeout; 417 418 static class FindTaskResult { 419 ActivityRecord r; 420 boolean matchedByRootAffinity; 421 } 422 private final FindTaskResult mTmpFindTaskResult = new FindTaskResult(); 423 424 /** 425 * Used to keep track whether app visibilities got changed since the last pause. Useful to 426 * determine whether to invoke the task stack change listener after pausing. 427 */ 428 boolean mAppVisibilitiesChangedSinceLastPause; 429 430 /** 431 * Set of tasks that are in resizing mode during an app transition to fill the "void". 432 */ 433 private final ArraySet<Integer> mResizingTasksDuringAnimation = new ArraySet<>(); 434 435 /** 436 * Description of a request to start a new activity, which has been held 437 * due to app switches being disabled. 438 */ 439 static class PendingActivityLaunch { 440 final ActivityRecord r; 441 final ActivityRecord sourceRecord; 442 final int startFlags; 443 final ActivityStack stack; 444 final ProcessRecord callerApp; 445 446 PendingActivityLaunch(ActivityRecord _r, ActivityRecord _sourceRecord, 447 int _startFlags, ActivityStack _stack, ProcessRecord _callerApp) { 448 r = _r; 449 sourceRecord = _sourceRecord; 450 startFlags = _startFlags; 451 stack = _stack; 452 callerApp = _callerApp; 453 } 454 455 void sendErrorResult(String message) { 456 try { 457 if (callerApp.thread != null) { 458 callerApp.thread.scheduleCrash(message); 459 } 460 } catch (RemoteException e) { 461 Slog.e(TAG, "Exception scheduling crash of failed " 462 + "activity launcher sourceRecord=" + sourceRecord, e); 463 } 464 } 465 } 466 467 public ActivityStackSupervisor(ActivityManagerService service) { 468 mService = service; 469 mHandler = new ActivityStackSupervisorHandler(mService.mHandler.getLooper()); 470 mActivityMetricsLogger = new ActivityMetricsLogger(this, mService.mContext); 471 mResizeDockedStackTimeout = new ResizeDockedStackTimeout(service, this, mHandler); 472 } 473 474 void setRecentTasks(RecentTasks recentTasks) { 475 mRecentTasks = recentTasks; 476 } 477 478 /** 479 * At the time when the constructor runs, the power manager has not yet been 480 * initialized. So we initialize our wakelocks afterwards. 481 */ 482 void initPowerManagement() { 483 PowerManager pm = (PowerManager)mService.mContext.getSystemService(Context.POWER_SERVICE); 484 mGoingToSleep = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "ActivityManager-Sleep"); 485 mLaunchingActivity = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "*launch*"); 486 mLaunchingActivity.setReferenceCounted(false); 487 } 488 489 // This function returns a IStatusBarService. The value is from ServiceManager. 490 // getService and is cached. 491 private IStatusBarService getStatusBarService() { 492 synchronized (mService) { 493 if (mStatusBarService == null) { 494 mStatusBarService = IStatusBarService.Stub.asInterface( 495 ServiceManager.checkService(Context.STATUS_BAR_SERVICE)); 496 if (mStatusBarService == null) { 497 Slog.w("StatusBarManager", "warning: no STATUS_BAR_SERVICE"); 498 } 499 } 500 return mStatusBarService; 501 } 502 } 503 504 private IDevicePolicyManager getDevicePolicyManager() { 505 synchronized (mService) { 506 if (mDevicePolicyManager == null) { 507 mDevicePolicyManager = IDevicePolicyManager.Stub.asInterface( 508 ServiceManager.checkService(Context.DEVICE_POLICY_SERVICE)); 509 if (mDevicePolicyManager == null) { 510 Slog.w(TAG, "warning: no DEVICE_POLICY_SERVICE"); 511 } 512 } 513 return mDevicePolicyManager; 514 } 515 } 516 517 void setWindowManager(WindowManagerService wm) { 518 synchronized (mService) { 519 mWindowManager = wm; 520 521 mDisplayManager = 522 (DisplayManager)mService.mContext.getSystemService(Context.DISPLAY_SERVICE); 523 mDisplayManager.registerDisplayListener(this, null); 524 525 Display[] displays = mDisplayManager.getDisplays(); 526 for (int displayNdx = displays.length - 1; displayNdx >= 0; --displayNdx) { 527 final int displayId = displays[displayNdx].getDisplayId(); 528 ActivityDisplay activityDisplay = new ActivityDisplay(displayId); 529 if (activityDisplay.mDisplay == null) { 530 throw new IllegalStateException("Default Display does not exist"); 531 } 532 mActivityDisplays.put(displayId, activityDisplay); 533 calculateDefaultMinimalSizeOfResizeableTasks(activityDisplay); 534 } 535 536 mHomeStack = mFocusedStack = mLastFocusedStack = 537 getStack(HOME_STACK_ID, CREATE_IF_NEEDED, ON_TOP); 538 539 mInputManagerInternal = LocalServices.getService(InputManagerInternal.class); 540 } 541 } 542 543 void notifyActivityDrawnForKeyguard() { 544 if (DEBUG_LOCKSCREEN) mService.logLockScreen(""); 545 mWindowManager.notifyActivityDrawnForKeyguard(); 546 } 547 548 ActivityStack getFocusedStack() { 549 return mFocusedStack; 550 } 551 552 ActivityStack getLastStack() { 553 return mLastFocusedStack; 554 } 555 556 boolean isFocusedStack(ActivityStack stack) { 557 if (stack == null) { 558 return false; 559 } 560 561 final ActivityRecord parent = stack.mActivityContainer.mParentActivity; 562 if (parent != null) { 563 stack = parent.task.stack; 564 } 565 return stack == mFocusedStack; 566 } 567 568 /** The top most stack. */ 569 boolean isFrontStack(ActivityStack stack) { 570 if (stack == null) { 571 return false; 572 } 573 574 final ActivityRecord parent = stack.mActivityContainer.mParentActivity; 575 if (parent != null) { 576 stack = parent.task.stack; 577 } 578 return stack == mHomeStack.mStacks.get((mHomeStack.mStacks.size() - 1)); 579 } 580 581 /** NOTE: Should only be called from {@link ActivityStack#moveToFront} */ 582 void setFocusStackUnchecked(String reason, ActivityStack focusCandidate) { 583 if (!focusCandidate.isFocusable()) { 584 // The focus candidate isn't focusable. Move focus to the top stack that is focusable. 585 focusCandidate = focusCandidate.getNextFocusableStackLocked(); 586 } 587 588 if (focusCandidate != mFocusedStack) { 589 mLastFocusedStack = mFocusedStack; 590 mFocusedStack = focusCandidate; 591 592 EventLogTags.writeAmFocusedStack( 593 mCurrentUser, mFocusedStack == null ? -1 : mFocusedStack.getStackId(), 594 mLastFocusedStack == null ? -1 : mLastFocusedStack.getStackId(), reason); 595 } 596 597 final ActivityRecord r = topRunningActivityLocked(); 598 if (!mService.mDoingSetFocusedActivity && mService.mFocusedActivity != r) { 599 // The focus activity should always be the top activity in the focused stack. 600 // There will be chaos and anarchy if it isn't... 601 mService.setFocusedActivityLocked(r, reason + " setFocusStack"); 602 } 603 604 if (mService.mBooting || !mService.mBooted) { 605 if (r != null && r.idle) { 606 checkFinishBootingLocked(); 607 } 608 } 609 } 610 611 void moveHomeStackToFront(String reason) { 612 mHomeStack.moveToFront(reason); 613 } 614 615 /** Returns true if the focus activity was adjusted to the home stack top activity. */ 616 boolean moveHomeStackTaskToTop(int homeStackTaskType, String reason) { 617 if (homeStackTaskType == RECENTS_ACTIVITY_TYPE) { 618 mWindowManager.showRecentApps(false /* fromHome */); 619 return false; 620 } 621 622 mHomeStack.moveHomeStackTaskToTop(homeStackTaskType); 623 624 final ActivityRecord top = getHomeActivity(); 625 if (top == null) { 626 return false; 627 } 628 mService.setFocusedActivityLocked(top, reason); 629 return true; 630 } 631 632 boolean resumeHomeStackTask(int homeStackTaskType, ActivityRecord prev, String reason) { 633 if (!mService.mBooting && !mService.mBooted) { 634 // Not ready yet! 635 return false; 636 } 637 638 if (homeStackTaskType == RECENTS_ACTIVITY_TYPE) { 639 mWindowManager.showRecentApps(false /* fromHome */); 640 return false; 641 } 642 643 if (prev != null) { 644 prev.task.setTaskToReturnTo(APPLICATION_ACTIVITY_TYPE); 645 } 646 647 mHomeStack.moveHomeStackTaskToTop(homeStackTaskType); 648 ActivityRecord r = getHomeActivity(); 649 final String myReason = reason + " resumeHomeStackTask"; 650 651 // Only resume home activity if isn't finishing. 652 if (r != null && !r.finishing) { 653 mService.setFocusedActivityLocked(r, myReason); 654 return resumeFocusedStackTopActivityLocked(mHomeStack, prev, null); 655 } 656 return mService.startHomeActivityLocked(mCurrentUser, myReason); 657 } 658 659 TaskRecord anyTaskForIdLocked(int id) { 660 return anyTaskForIdLocked(id, RESTORE_FROM_RECENTS, INVALID_STACK_ID); 661 } 662 663 /** 664 * Returns a {@link TaskRecord} for the input id if available. Null otherwise. 665 * @param id Id of the task we would like returned. 666 * @param restoreFromRecents If the id was not in the active list, but was found in recents, 667 * restore the task from recents to the active list. 668 * @param stackId The stack to restore the task to (default launch stack will be used if 669 * stackId is {@link android.app.ActivityManager.StackId#INVALID_STACK_ID}). 670 */ 671 TaskRecord anyTaskForIdLocked(int id, boolean restoreFromRecents, int stackId) { 672 int numDisplays = mActivityDisplays.size(); 673 for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) { 674 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 675 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 676 ActivityStack stack = stacks.get(stackNdx); 677 TaskRecord task = stack.taskForIdLocked(id); 678 if (task != null) { 679 return task; 680 } 681 } 682 } 683 684 // Don't give up! Look in recents. 685 if (DEBUG_RECENTS) Slog.v(TAG_RECENTS, "Looking for task id=" + id + " in recents"); 686 TaskRecord task = mRecentTasks.taskForIdLocked(id); 687 if (task == null) { 688 if (DEBUG_RECENTS) Slog.d(TAG_RECENTS, "\tDidn't find task id=" + id + " in recents"); 689 return null; 690 } 691 692 if (!restoreFromRecents) { 693 return task; 694 } 695 696 if (!restoreRecentTaskLocked(task, stackId)) { 697 if (DEBUG_RECENTS) Slog.w(TAG_RECENTS, 698 "Couldn't restore task id=" + id + " found in recents"); 699 return null; 700 } 701 if (DEBUG_RECENTS) Slog.w(TAG_RECENTS, "Restored task id=" + id + " from in recents"); 702 return task; 703 } 704 705 ActivityRecord isInAnyStackLocked(IBinder token) { 706 int numDisplays = mActivityDisplays.size(); 707 for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) { 708 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 709 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 710 final ActivityRecord r = stacks.get(stackNdx).isInStackLocked(token); 711 if (r != null) { 712 return r; 713 } 714 } 715 } 716 return null; 717 } 718 719 boolean isFocusedUserLockedProfile() { 720 final int userId = mFocusedStack.topRunningActivityLocked().userId; 721 return userId != UserHandle.myUserId() 722 && mService.mUserController.shouldConfirmCredentials(userId); 723 } 724 725 void setNextTaskIdForUserLocked(int taskId, int userId) { 726 final int currentTaskId = mCurTaskIdForUser.get(userId, -1); 727 if (taskId > currentTaskId) { 728 mCurTaskIdForUser.put(userId, taskId); 729 } 730 } 731 732 int getNextTaskIdForUserLocked(int userId) { 733 final int currentTaskId = mCurTaskIdForUser.get(userId, userId * MAX_TASK_IDS_PER_USER); 734 // for a userId u, a taskId can only be in the range 735 // [u*MAX_TASK_IDS_PER_USER, (u+1)*MAX_TASK_IDS_PER_USER-1], so if MAX_TASK_IDS_PER_USER 736 // was 10, user 0 could only have taskIds 0 to 9, user 1: 10 to 19, user 2: 20 to 29, so on. 737 int candidateTaskId = currentTaskId; 738 while (mRecentTasks.taskIdTakenForUserLocked(candidateTaskId, userId) 739 || anyTaskForIdLocked(candidateTaskId, !RESTORE_FROM_RECENTS, 740 INVALID_STACK_ID) != null) { 741 candidateTaskId++; 742 if (candidateTaskId == (userId + 1) * MAX_TASK_IDS_PER_USER) { 743 // Wrap around as there will be smaller task ids that are available now. 744 candidateTaskId -= MAX_TASK_IDS_PER_USER; 745 } 746 if (candidateTaskId == currentTaskId) { 747 // Something wrong! 748 // All MAX_TASK_IDS_PER_USER task ids are taken up by running tasks for this user 749 throw new IllegalStateException("Cannot get an available task id." 750 + " Reached limit of " + MAX_TASK_IDS_PER_USER 751 + " running tasks per user."); 752 } 753 } 754 mCurTaskIdForUser.put(userId, candidateTaskId); 755 return candidateTaskId; 756 } 757 758 ActivityRecord resumedAppLocked() { 759 ActivityStack stack = mFocusedStack; 760 if (stack == null) { 761 return null; 762 } 763 ActivityRecord resumedActivity = stack.mResumedActivity; 764 if (resumedActivity == null || resumedActivity.app == null) { 765 resumedActivity = stack.mPausingActivity; 766 if (resumedActivity == null || resumedActivity.app == null) { 767 resumedActivity = stack.topRunningActivityLocked(); 768 } 769 } 770 return resumedActivity; 771 } 772 773 boolean attachApplicationLocked(ProcessRecord app) throws RemoteException { 774 final String processName = app.processName; 775 boolean didSomething = false; 776 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 777 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 778 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 779 final ActivityStack stack = stacks.get(stackNdx); 780 if (!isFocusedStack(stack)) { 781 continue; 782 } 783 ActivityRecord hr = stack.topRunningActivityLocked(); 784 if (hr != null) { 785 if (hr.app == null && app.uid == hr.info.applicationInfo.uid 786 && processName.equals(hr.processName)) { 787 try { 788 if (realStartActivityLocked(hr, app, true, true)) { 789 didSomething = true; 790 } 791 } catch (RemoteException e) { 792 Slog.w(TAG, "Exception in new application when starting activity " 793 + hr.intent.getComponent().flattenToShortString(), e); 794 throw e; 795 } 796 } 797 } 798 } 799 } 800 if (!didSomething) { 801 ensureActivitiesVisibleLocked(null, 0, !PRESERVE_WINDOWS); 802 } 803 return didSomething; 804 } 805 806 boolean allResumedActivitiesIdle() { 807 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 808 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 809 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 810 final ActivityStack stack = stacks.get(stackNdx); 811 if (!isFocusedStack(stack) || stack.numActivities() == 0) { 812 continue; 813 } 814 final ActivityRecord resumedActivity = stack.mResumedActivity; 815 if (resumedActivity == null || !resumedActivity.idle) { 816 if (DEBUG_STATES) Slog.d(TAG_STATES, "allResumedActivitiesIdle: stack=" 817 + stack.mStackId + " " + resumedActivity + " not idle"); 818 return false; 819 } 820 } 821 } 822 return true; 823 } 824 825 boolean allResumedActivitiesComplete() { 826 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 827 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 828 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 829 final ActivityStack stack = stacks.get(stackNdx); 830 if (isFocusedStack(stack)) { 831 final ActivityRecord r = stack.mResumedActivity; 832 if (r != null && r.state != RESUMED) { 833 return false; 834 } 835 } 836 } 837 } 838 // TODO: Not sure if this should check if all Paused are complete too. 839 if (DEBUG_STACK) Slog.d(TAG_STACK, 840 "allResumedActivitiesComplete: mLastFocusedStack changing from=" + 841 mLastFocusedStack + " to=" + mFocusedStack); 842 mLastFocusedStack = mFocusedStack; 843 return true; 844 } 845 846 boolean allResumedActivitiesVisible() { 847 boolean foundResumed = false; 848 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 849 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 850 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 851 final ActivityStack stack = stacks.get(stackNdx); 852 final ActivityRecord r = stack.mResumedActivity; 853 if (r != null) { 854 if (!r.nowVisible || mWaitingVisibleActivities.contains(r)) { 855 return false; 856 } 857 foundResumed = true; 858 } 859 } 860 } 861 return foundResumed; 862 } 863 864 /** 865 * Pause all activities in either all of the stacks or just the back stacks. 866 * @param userLeaving Passed to pauseActivity() to indicate whether to call onUserLeaving(). 867 * @return true if any activity was paused as a result of this call. 868 */ 869 boolean pauseBackStacks(boolean userLeaving, boolean resuming, boolean dontWait) { 870 boolean someActivityPaused = false; 871 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 872 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 873 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 874 final ActivityStack stack = stacks.get(stackNdx); 875 if (!isFocusedStack(stack) && stack.mResumedActivity != null) { 876 if (DEBUG_STATES) Slog.d(TAG_STATES, "pauseBackStacks: stack=" + stack + 877 " mResumedActivity=" + stack.mResumedActivity); 878 someActivityPaused |= stack.startPausingLocked(userLeaving, false, resuming, 879 dontWait); 880 } 881 } 882 } 883 return someActivityPaused; 884 } 885 886 boolean allPausedActivitiesComplete() { 887 boolean pausing = true; 888 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 889 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 890 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 891 final ActivityStack stack = stacks.get(stackNdx); 892 final ActivityRecord r = stack.mPausingActivity; 893 if (r != null && r.state != PAUSED && r.state != STOPPED && r.state != STOPPING) { 894 if (DEBUG_STATES) { 895 Slog.d(TAG_STATES, 896 "allPausedActivitiesComplete: r=" + r + " state=" + r.state); 897 pausing = false; 898 } else { 899 return false; 900 } 901 } 902 } 903 } 904 return pausing; 905 } 906 907 void pauseChildStacks(ActivityRecord parent, boolean userLeaving, boolean uiSleeping, 908 boolean resuming, boolean dontWait) { 909 // TODO: Put all stacks in supervisor and iterate through them instead. 910 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 911 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 912 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 913 final ActivityStack stack = stacks.get(stackNdx); 914 if (stack.mResumedActivity != null && 915 stack.mActivityContainer.mParentActivity == parent) { 916 stack.startPausingLocked(userLeaving, uiSleeping, resuming, dontWait); 917 } 918 } 919 } 920 } 921 922 void cancelInitializingActivities() { 923 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 924 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 925 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 926 stacks.get(stackNdx).cancelInitializingActivities(); 927 } 928 } 929 } 930 931 void reportActivityVisibleLocked(ActivityRecord r) { 932 sendWaitingVisibleReportLocked(r); 933 } 934 935 void sendWaitingVisibleReportLocked(ActivityRecord r) { 936 boolean changed = false; 937 for (int i = mWaitingActivityVisible.size()-1; i >= 0; i--) { 938 WaitResult w = mWaitingActivityVisible.get(i); 939 if (w.who == null) { 940 changed = true; 941 w.timeout = false; 942 if (r != null) { 943 w.who = new ComponentName(r.info.packageName, r.info.name); 944 } 945 w.totalTime = SystemClock.uptimeMillis() - w.thisTime; 946 w.thisTime = w.totalTime; 947 } 948 } 949 if (changed) { 950 mService.notifyAll(); 951 } 952 } 953 954 void reportActivityLaunchedLocked(boolean timeout, ActivityRecord r, 955 long thisTime, long totalTime) { 956 boolean changed = false; 957 for (int i = mWaitingActivityLaunched.size() - 1; i >= 0; i--) { 958 WaitResult w = mWaitingActivityLaunched.remove(i); 959 if (w.who == null) { 960 changed = true; 961 w.timeout = timeout; 962 if (r != null) { 963 w.who = new ComponentName(r.info.packageName, r.info.name); 964 } 965 w.thisTime = thisTime; 966 w.totalTime = totalTime; 967 } 968 } 969 if (changed) { 970 mService.notifyAll(); 971 } 972 } 973 974 ActivityRecord topRunningActivityLocked() { 975 final ActivityStack focusedStack = mFocusedStack; 976 ActivityRecord r = focusedStack.topRunningActivityLocked(); 977 if (r != null) { 978 return r; 979 } 980 981 // Return to the home stack. 982 final ArrayList<ActivityStack> stacks = mHomeStack.mStacks; 983 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 984 final ActivityStack stack = stacks.get(stackNdx); 985 if (stack != focusedStack && isFrontStack(stack) && stack.isFocusable()) { 986 r = stack.topRunningActivityLocked(); 987 if (r != null) { 988 return r; 989 } 990 } 991 } 992 return null; 993 } 994 995 void getTasksLocked(int maxNum, List<RunningTaskInfo> list, int callingUid, boolean allowed) { 996 // Gather all of the running tasks for each stack into runningTaskLists. 997 ArrayList<ArrayList<RunningTaskInfo>> runningTaskLists = 998 new ArrayList<ArrayList<RunningTaskInfo>>(); 999 final int numDisplays = mActivityDisplays.size(); 1000 for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) { 1001 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 1002 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 1003 final ActivityStack stack = stacks.get(stackNdx); 1004 ArrayList<RunningTaskInfo> stackTaskList = new ArrayList<>(); 1005 runningTaskLists.add(stackTaskList); 1006 stack.getTasksLocked(stackTaskList, callingUid, allowed); 1007 } 1008 } 1009 1010 // The lists are already sorted from most recent to oldest. Just pull the most recent off 1011 // each list and add it to list. Stop when all lists are empty or maxNum reached. 1012 while (maxNum > 0) { 1013 long mostRecentActiveTime = Long.MIN_VALUE; 1014 ArrayList<RunningTaskInfo> selectedStackList = null; 1015 final int numTaskLists = runningTaskLists.size(); 1016 for (int stackNdx = 0; stackNdx < numTaskLists; ++stackNdx) { 1017 ArrayList<RunningTaskInfo> stackTaskList = runningTaskLists.get(stackNdx); 1018 if (!stackTaskList.isEmpty()) { 1019 final long lastActiveTime = stackTaskList.get(0).lastActiveTime; 1020 if (lastActiveTime > mostRecentActiveTime) { 1021 mostRecentActiveTime = lastActiveTime; 1022 selectedStackList = stackTaskList; 1023 } 1024 } 1025 } 1026 if (selectedStackList != null) { 1027 list.add(selectedStackList.remove(0)); 1028 --maxNum; 1029 } else { 1030 break; 1031 } 1032 } 1033 } 1034 1035 ActivityInfo resolveActivity(Intent intent, ResolveInfo rInfo, int startFlags, 1036 ProfilerInfo profilerInfo) { 1037 final ActivityInfo aInfo = rInfo != null ? rInfo.activityInfo : null; 1038 if (aInfo != null) { 1039 // Store the found target back into the intent, because now that 1040 // we have it we never want to do this again. For example, if the 1041 // user navigates back to this point in the history, we should 1042 // always restart the exact same activity. 1043 intent.setComponent(new ComponentName( 1044 aInfo.applicationInfo.packageName, aInfo.name)); 1045 1046 // Don't debug things in the system process 1047 if (!aInfo.processName.equals("system")) { 1048 if ((startFlags & ActivityManager.START_FLAG_DEBUG) != 0) { 1049 mService.setDebugApp(aInfo.processName, true, false); 1050 } 1051 1052 if ((startFlags & ActivityManager.START_FLAG_NATIVE_DEBUGGING) != 0) { 1053 mService.setNativeDebuggingAppLocked(aInfo.applicationInfo, aInfo.processName); 1054 } 1055 1056 if ((startFlags & ActivityManager.START_FLAG_TRACK_ALLOCATION) != 0) { 1057 mService.setTrackAllocationApp(aInfo.applicationInfo, aInfo.processName); 1058 } 1059 1060 if (profilerInfo != null) { 1061 mService.setProfileApp(aInfo.applicationInfo, aInfo.processName, profilerInfo); 1062 } 1063 } 1064 } 1065 return aInfo; 1066 } 1067 1068 ResolveInfo resolveIntent(Intent intent, String resolvedType, int userId) { 1069 return resolveIntent(intent, resolvedType, userId, 0); 1070 } 1071 1072 ResolveInfo resolveIntent(Intent intent, String resolvedType, int userId, int flags) { 1073 try { 1074 return AppGlobals.getPackageManager().resolveIntent(intent, resolvedType, 1075 PackageManager.MATCH_DEFAULT_ONLY | flags 1076 | ActivityManagerService.STOCK_PM_FLAGS, userId); 1077 } catch (RemoteException e) { 1078 } 1079 return null; 1080 } 1081 1082 ActivityInfo resolveActivity(Intent intent, String resolvedType, int startFlags, 1083 ProfilerInfo profilerInfo, int userId) { 1084 final ResolveInfo rInfo = resolveIntent(intent, resolvedType, userId); 1085 return resolveActivity(intent, rInfo, startFlags, profilerInfo); 1086 } 1087 1088 final boolean realStartActivityLocked(ActivityRecord r, ProcessRecord app, 1089 boolean andResume, boolean checkConfig) throws RemoteException { 1090 1091 if (!allPausedActivitiesComplete()) { 1092 // While there are activities pausing we skipping starting any new activities until 1093 // pauses are complete. NOTE: that we also do this for activities that are starting in 1094 // the paused state because they will first be resumed then paused on the client side. 1095 if (DEBUG_SWITCH || DEBUG_PAUSE || DEBUG_STATES) Slog.v(TAG_PAUSE, 1096 "realStartActivityLocked: Skipping start of r=" + r 1097 + " some activities pausing..."); 1098 return false; 1099 } 1100 1101 if (andResume) { 1102 r.startFreezingScreenLocked(app, 0); 1103 mWindowManager.setAppVisibility(r.appToken, true); 1104 1105 // schedule launch ticks to collect information about slow apps. 1106 r.startLaunchTickingLocked(); 1107 } 1108 1109 // Have the window manager re-evaluate the orientation of 1110 // the screen based on the new activity order. Note that 1111 // as a result of this, it can call back into the activity 1112 // manager with a new orientation. We don't care about that, 1113 // because the activity is not currently running so we are 1114 // just restarting it anyway. 1115 if (checkConfig) { 1116 Configuration config = mWindowManager.updateOrientationFromAppTokens( 1117 mService.mConfiguration, 1118 r.mayFreezeScreenLocked(app) ? r.appToken : null); 1119 mService.updateConfigurationLocked(config, r, false); 1120 } 1121 1122 r.app = app; 1123 app.waitingToKill = null; 1124 r.launchCount++; 1125 r.lastLaunchTime = SystemClock.uptimeMillis(); 1126 1127 if (DEBUG_ALL) Slog.v(TAG, "Launching: " + r); 1128 1129 int idx = app.activities.indexOf(r); 1130 if (idx < 0) { 1131 app.activities.add(r); 1132 } 1133 mService.updateLruProcessLocked(app, true, null); 1134 mService.updateOomAdjLocked(); 1135 1136 final TaskRecord task = r.task; 1137 if (task.mLockTaskAuth == LOCK_TASK_AUTH_LAUNCHABLE || 1138 task.mLockTaskAuth == LOCK_TASK_AUTH_LAUNCHABLE_PRIV) { 1139 setLockTaskModeLocked(task, LOCK_TASK_MODE_LOCKED, "mLockTaskAuth==LAUNCHABLE", false); 1140 } 1141 1142 final ActivityStack stack = task.stack; 1143 try { 1144 if (app.thread == null) { 1145 throw new RemoteException(); 1146 } 1147 List<ResultInfo> results = null; 1148 List<ReferrerIntent> newIntents = null; 1149 if (andResume) { 1150 results = r.results; 1151 newIntents = r.newIntents; 1152 } 1153 if (DEBUG_SWITCH) Slog.v(TAG_SWITCH, 1154 "Launching: " + r + " icicle=" + r.icicle + " with results=" + results 1155 + " newIntents=" + newIntents + " andResume=" + andResume); 1156 if (andResume) { 1157 EventLog.writeEvent(EventLogTags.AM_RESTART_ACTIVITY, 1158 r.userId, System.identityHashCode(r), 1159 task.taskId, r.shortComponentName); 1160 } 1161 if (r.isHomeActivity()) { 1162 // Home process is the root process of the task. 1163 mService.mHomeProcess = task.mActivities.get(0).app; 1164 } 1165 mService.notifyPackageUse(r.intent.getComponent().getPackageName()); 1166 r.sleeping = false; 1167 r.forceNewConfig = false; 1168 mService.showAskCompatModeDialogLocked(r); 1169 r.compat = mService.compatibilityInfoForPackageLocked(r.info.applicationInfo); 1170 ProfilerInfo profilerInfo = null; 1171 if (mService.mProfileApp != null && mService.mProfileApp.equals(app.processName)) { 1172 if (mService.mProfileProc == null || mService.mProfileProc == app) { 1173 mService.mProfileProc = app; 1174 final String profileFile = mService.mProfileFile; 1175 if (profileFile != null) { 1176 ParcelFileDescriptor profileFd = mService.mProfileFd; 1177 if (profileFd != null) { 1178 try { 1179 profileFd = profileFd.dup(); 1180 } catch (IOException e) { 1181 if (profileFd != null) { 1182 try { 1183 profileFd.close(); 1184 } catch (IOException o) { 1185 } 1186 profileFd = null; 1187 } 1188 } 1189 } 1190 1191 profilerInfo = new ProfilerInfo(profileFile, profileFd, 1192 mService.mSamplingInterval, mService.mAutoStopProfiler); 1193 } 1194 } 1195 } 1196 1197 if (andResume) { 1198 app.hasShownUi = true; 1199 app.pendingUiClean = true; 1200 } 1201 app.forceProcessStateUpTo(mService.mTopProcessState); 1202 app.thread.scheduleLaunchActivity(new Intent(r.intent), r.appToken, 1203 System.identityHashCode(r), r.info, new Configuration(mService.mConfiguration), 1204 new Configuration(task.mOverrideConfig), r.compat, r.launchedFromPackage, 1205 task.voiceInteractor, app.repProcState, r.icicle, r.persistentState, results, 1206 newIntents, !andResume, mService.isNextTransitionForward(), profilerInfo); 1207 1208 if ((app.info.privateFlags&ApplicationInfo.PRIVATE_FLAG_CANT_SAVE_STATE) != 0) { 1209 // This may be a heavy-weight process! Note that the package 1210 // manager will ensure that only activity can run in the main 1211 // process of the .apk, which is the only thing that will be 1212 // considered heavy-weight. 1213 if (app.processName.equals(app.info.packageName)) { 1214 if (mService.mHeavyWeightProcess != null 1215 && mService.mHeavyWeightProcess != app) { 1216 Slog.w(TAG, "Starting new heavy weight process " + app 1217 + " when already running " 1218 + mService.mHeavyWeightProcess); 1219 } 1220 mService.mHeavyWeightProcess = app; 1221 Message msg = mService.mHandler.obtainMessage( 1222 ActivityManagerService.POST_HEAVY_NOTIFICATION_MSG); 1223 msg.obj = r; 1224 mService.mHandler.sendMessage(msg); 1225 } 1226 } 1227 1228 } catch (RemoteException e) { 1229 if (r.launchFailed) { 1230 // This is the second time we failed -- finish activity 1231 // and give up. 1232 Slog.e(TAG, "Second failure launching " 1233 + r.intent.getComponent().flattenToShortString() 1234 + ", giving up", e); 1235 mService.appDiedLocked(app); 1236 stack.requestFinishActivityLocked(r.appToken, Activity.RESULT_CANCELED, null, 1237 "2nd-crash", false); 1238 return false; 1239 } 1240 1241 // This is the first time we failed -- restart process and 1242 // retry. 1243 app.activities.remove(r); 1244 throw e; 1245 } 1246 1247 r.launchFailed = false; 1248 if (stack.updateLRUListLocked(r)) { 1249 Slog.w(TAG, "Activity " + r + " being launched, but already in LRU list"); 1250 } 1251 1252 if (andResume) { 1253 // As part of the process of launching, ActivityThread also performs 1254 // a resume. 1255 stack.minimalResumeActivityLocked(r); 1256 } else { 1257 // This activity is not starting in the resumed state... which should look like we asked 1258 // it to pause+stop (but remain visible), and it has done so and reported back the 1259 // current icicle and other state. 1260 if (DEBUG_STATES) Slog.v(TAG_STATES, 1261 "Moving to PAUSED: " + r + " (starting in paused state)"); 1262 r.state = PAUSED; 1263 } 1264 1265 // Launch the new version setup screen if needed. We do this -after- 1266 // launching the initial activity (that is, home), so that it can have 1267 // a chance to initialize itself while in the background, making the 1268 // switch back to it faster and look better. 1269 if (isFocusedStack(stack)) { 1270 mService.startSetupActivityLocked(); 1271 } 1272 1273 // Update any services we are bound to that might care about whether 1274 // their client may have activities. 1275 mService.mServices.updateServiceConnectionActivitiesLocked(r.app); 1276 1277 return true; 1278 } 1279 1280 void startSpecificActivityLocked(ActivityRecord r, 1281 boolean andResume, boolean checkConfig) { 1282 // Is this activity's application already running? 1283 ProcessRecord app = mService.getProcessRecordLocked(r.processName, 1284 r.info.applicationInfo.uid, true); 1285 1286 r.task.stack.setLaunchTime(r); 1287 1288 if (app != null && app.thread != null) { 1289 try { 1290 if ((r.info.flags&ActivityInfo.FLAG_MULTIPROCESS) == 0 1291 || !"android".equals(r.info.packageName)) { 1292 // Don't add this if it is a platform component that is marked 1293 // to run in multiple processes, because this is actually 1294 // part of the framework so doesn't make sense to track as a 1295 // separate apk in the process. 1296 app.addPackage(r.info.packageName, r.info.applicationInfo.versionCode, 1297 mService.mProcessStats); 1298 } 1299 realStartActivityLocked(r, app, andResume, checkConfig); 1300 return; 1301 } catch (RemoteException e) { 1302 Slog.w(TAG, "Exception when starting activity " 1303 + r.intent.getComponent().flattenToShortString(), e); 1304 } 1305 1306 // If a dead object exception was thrown -- fall through to 1307 // restart the application. 1308 } 1309 1310 mService.startProcessLocked(r.processName, r.info.applicationInfo, true, 0, 1311 "activity", r.intent.getComponent(), false, false, true); 1312 } 1313 1314 boolean checkStartAnyActivityPermission(Intent intent, ActivityInfo aInfo, 1315 String resultWho, int requestCode, int callingPid, int callingUid, 1316 String callingPackage, boolean ignoreTargetSecurity, ProcessRecord callerApp, 1317 ActivityRecord resultRecord, ActivityStack resultStack, ActivityOptions options) { 1318 final int startAnyPerm = mService.checkPermission(START_ANY_ACTIVITY, callingPid, 1319 callingUid); 1320 if (startAnyPerm == PERMISSION_GRANTED) { 1321 return true; 1322 } 1323 final int componentRestriction = getComponentRestrictionForCallingPackage( 1324 aInfo, callingPackage, callingPid, callingUid, ignoreTargetSecurity); 1325 final int actionRestriction = getActionRestrictionForCallingPackage( 1326 intent.getAction(), callingPackage, callingPid, callingUid); 1327 if (componentRestriction == ACTIVITY_RESTRICTION_PERMISSION 1328 || actionRestriction == ACTIVITY_RESTRICTION_PERMISSION) { 1329 if (resultRecord != null) { 1330 resultStack.sendActivityResultLocked(-1, 1331 resultRecord, resultWho, requestCode, 1332 Activity.RESULT_CANCELED, null); 1333 } 1334 final String msg; 1335 if (actionRestriction == ACTIVITY_RESTRICTION_PERMISSION) { 1336 msg = "Permission Denial: starting " + intent.toString() 1337 + " from " + callerApp + " (pid=" + callingPid 1338 + ", uid=" + callingUid + ")" + " with revoked permission " 1339 + ACTION_TO_RUNTIME_PERMISSION.get(intent.getAction()); 1340 } else if (!aInfo.exported) { 1341 msg = "Permission Denial: starting " + intent.toString() 1342 + " from " + callerApp + " (pid=" + callingPid 1343 + ", uid=" + callingUid + ")" 1344 + " not exported from uid " + aInfo.applicationInfo.uid; 1345 } else { 1346 msg = "Permission Denial: starting " + intent.toString() 1347 + " from " + callerApp + " (pid=" + callingPid 1348 + ", uid=" + callingUid + ")" 1349 + " requires " + aInfo.permission; 1350 } 1351 Slog.w(TAG, msg); 1352 throw new SecurityException(msg); 1353 } 1354 1355 if (actionRestriction == ACTIVITY_RESTRICTION_APPOP) { 1356 final String message = "Appop Denial: starting " + intent.toString() 1357 + " from " + callerApp + " (pid=" + callingPid 1358 + ", uid=" + callingUid + ")" 1359 + " requires " + AppOpsManager.permissionToOp( 1360 ACTION_TO_RUNTIME_PERMISSION.get(intent.getAction())); 1361 Slog.w(TAG, message); 1362 return false; 1363 } else if (componentRestriction == ACTIVITY_RESTRICTION_APPOP) { 1364 final String message = "Appop Denial: starting " + intent.toString() 1365 + " from " + callerApp + " (pid=" + callingPid 1366 + ", uid=" + callingUid + ")" 1367 + " requires appop " + AppOpsManager.permissionToOp(aInfo.permission); 1368 Slog.w(TAG, message); 1369 return false; 1370 } 1371 if (options != null && options.getLaunchTaskId() != -1) { 1372 final int startInTaskPerm = mService.checkPermission(START_TASKS_FROM_RECENTS, 1373 callingPid, callingUid); 1374 if (startInTaskPerm != PERMISSION_GRANTED) { 1375 final String msg = "Permission Denial: starting " + intent.toString() 1376 + " from " + callerApp + " (pid=" + callingPid 1377 + ", uid=" + callingUid + ") with launchTaskId=" 1378 + options.getLaunchTaskId(); 1379 Slog.w(TAG, msg); 1380 throw new SecurityException(msg); 1381 } 1382 } 1383 1384 return true; 1385 } 1386 1387 UserInfo getUserInfo(int userId) { 1388 final long identity = Binder.clearCallingIdentity(); 1389 try { 1390 return UserManager.get(mService.mContext).getUserInfo(userId); 1391 } finally { 1392 Binder.restoreCallingIdentity(identity); 1393 } 1394 } 1395 1396 private int getComponentRestrictionForCallingPackage(ActivityInfo activityInfo, 1397 String callingPackage, int callingPid, int callingUid, boolean ignoreTargetSecurity) { 1398 if (!ignoreTargetSecurity && mService.checkComponentPermission(activityInfo.permission, 1399 callingPid, callingUid, activityInfo.applicationInfo.uid, activityInfo.exported) 1400 == PackageManager.PERMISSION_DENIED) { 1401 return ACTIVITY_RESTRICTION_PERMISSION; 1402 } 1403 1404 if (activityInfo.permission == null) { 1405 return ACTIVITY_RESTRICTION_NONE; 1406 } 1407 1408 final int opCode = AppOpsManager.permissionToOpCode(activityInfo.permission); 1409 if (opCode == AppOpsManager.OP_NONE) { 1410 return ACTIVITY_RESTRICTION_NONE; 1411 } 1412 1413 if (mService.mAppOpsService.noteOperation(opCode, callingUid, 1414 callingPackage) != AppOpsManager.MODE_ALLOWED) { 1415 if (!ignoreTargetSecurity) { 1416 return ACTIVITY_RESTRICTION_APPOP; 1417 } 1418 } 1419 1420 return ACTIVITY_RESTRICTION_NONE; 1421 } 1422 1423 private int getActionRestrictionForCallingPackage(String action, 1424 String callingPackage, int callingPid, int callingUid) { 1425 if (action == null) { 1426 return ACTIVITY_RESTRICTION_NONE; 1427 } 1428 1429 String permission = ACTION_TO_RUNTIME_PERMISSION.get(action); 1430 if (permission == null) { 1431 return ACTIVITY_RESTRICTION_NONE; 1432 } 1433 1434 final PackageInfo packageInfo; 1435 try { 1436 packageInfo = mService.mContext.getPackageManager() 1437 .getPackageInfo(callingPackage, PackageManager.GET_PERMISSIONS); 1438 } catch (PackageManager.NameNotFoundException e) { 1439 Slog.i(TAG, "Cannot find package info for " + callingPackage); 1440 return ACTIVITY_RESTRICTION_NONE; 1441 } 1442 1443 if (!ArrayUtils.contains(packageInfo.requestedPermissions, permission)) { 1444 return ACTIVITY_RESTRICTION_NONE; 1445 } 1446 1447 if (mService.checkPermission(permission, callingPid, callingUid) == 1448 PackageManager.PERMISSION_DENIED) { 1449 return ACTIVITY_RESTRICTION_PERMISSION; 1450 } 1451 1452 final int opCode = AppOpsManager.permissionToOpCode(permission); 1453 if (opCode == AppOpsManager.OP_NONE) { 1454 return ACTIVITY_RESTRICTION_NONE; 1455 } 1456 1457 if (mService.mAppOpsService.noteOperation(opCode, callingUid, 1458 callingPackage) != AppOpsManager.MODE_ALLOWED) { 1459 return ACTIVITY_RESTRICTION_APPOP; 1460 } 1461 1462 return ACTIVITY_RESTRICTION_NONE; 1463 } 1464 1465 boolean moveActivityStackToFront(ActivityRecord r, String reason) { 1466 if (r == null) { 1467 // Not sure what you are trying to do, but it is not going to work... 1468 return false; 1469 } 1470 final TaskRecord task = r.task; 1471 if (task == null || task.stack == null) { 1472 Slog.w(TAG, "Can't move stack to front for r=" + r + " task=" + task); 1473 return false; 1474 } 1475 task.stack.moveToFront(reason, task); 1476 return true; 1477 } 1478 1479 void setLaunchSource(int uid) { 1480 mLaunchingActivity.setWorkSource(new WorkSource(uid)); 1481 } 1482 1483 void acquireLaunchWakelock() { 1484 if (VALIDATE_WAKE_LOCK_CALLER && Binder.getCallingUid() != Process.myUid()) { 1485 throw new IllegalStateException("Calling must be system uid"); 1486 } 1487 mLaunchingActivity.acquire(); 1488 if (!mHandler.hasMessages(LAUNCH_TIMEOUT_MSG)) { 1489 // To be safe, don't allow the wake lock to be held for too long. 1490 mHandler.sendEmptyMessageDelayed(LAUNCH_TIMEOUT_MSG, LAUNCH_TIMEOUT); 1491 } 1492 } 1493 1494 /** 1495 * Called when the frontmost task is idle. 1496 * @return the state of mService.mBooting before this was called. 1497 */ 1498 private boolean checkFinishBootingLocked() { 1499 final boolean booting = mService.mBooting; 1500 boolean enableScreen = false; 1501 mService.mBooting = false; 1502 if (!mService.mBooted) { 1503 mService.mBooted = true; 1504 enableScreen = true; 1505 } 1506 if (booting || enableScreen) { 1507 mService.postFinishBooting(booting, enableScreen); 1508 } 1509 return booting; 1510 } 1511 1512 // Checked. 1513 final ActivityRecord activityIdleInternalLocked(final IBinder token, boolean fromTimeout, 1514 Configuration config) { 1515 if (DEBUG_ALL) Slog.v(TAG, "Activity idle: " + token); 1516 1517 ArrayList<ActivityRecord> finishes = null; 1518 ArrayList<UserState> startingUsers = null; 1519 int NS = 0; 1520 int NF = 0; 1521 boolean booting = false; 1522 boolean activityRemoved = false; 1523 1524 ActivityRecord r = ActivityRecord.forTokenLocked(token); 1525 if (r != null) { 1526 if (DEBUG_IDLE) Slog.d(TAG_IDLE, "activityIdleInternalLocked: Callers=" 1527 + Debug.getCallers(4)); 1528 mHandler.removeMessages(IDLE_TIMEOUT_MSG, r); 1529 r.finishLaunchTickingLocked(); 1530 if (fromTimeout) { 1531 reportActivityLaunchedLocked(fromTimeout, r, -1, -1); 1532 } 1533 1534 // This is a hack to semi-deal with a race condition 1535 // in the client where it can be constructed with a 1536 // newer configuration from when we asked it to launch. 1537 // We'll update with whatever configuration it now says 1538 // it used to launch. 1539 if (config != null) { 1540 r.configuration = config; 1541 } 1542 1543 // We are now idle. If someone is waiting for a thumbnail from 1544 // us, we can now deliver. 1545 r.idle = true; 1546 1547 //Slog.i(TAG, "IDLE: mBooted=" + mBooted + ", fromTimeout=" + fromTimeout); 1548 if (isFocusedStack(r.task.stack) || fromTimeout) { 1549 booting = checkFinishBootingLocked(); 1550 } 1551 } 1552 1553 if (allResumedActivitiesIdle()) { 1554 if (r != null) { 1555 mService.scheduleAppGcsLocked(); 1556 } 1557 1558 if (mLaunchingActivity.isHeld()) { 1559 mHandler.removeMessages(LAUNCH_TIMEOUT_MSG); 1560 if (VALIDATE_WAKE_LOCK_CALLER && 1561 Binder.getCallingUid() != Process.myUid()) { 1562 throw new IllegalStateException("Calling must be system uid"); 1563 } 1564 mLaunchingActivity.release(); 1565 } 1566 ensureActivitiesVisibleLocked(null, 0, !PRESERVE_WINDOWS); 1567 } 1568 1569 // Atomically retrieve all of the other things to do. 1570 final ArrayList<ActivityRecord> stops = processStoppingActivitiesLocked(true); 1571 NS = stops != null ? stops.size() : 0; 1572 if ((NF = mFinishingActivities.size()) > 0) { 1573 finishes = new ArrayList<>(mFinishingActivities); 1574 mFinishingActivities.clear(); 1575 } 1576 1577 if (mStartingUsers.size() > 0) { 1578 startingUsers = new ArrayList<>(mStartingUsers); 1579 mStartingUsers.clear(); 1580 } 1581 1582 // Stop any activities that are scheduled to do so but have been 1583 // waiting for the next one to start. 1584 for (int i = 0; i < NS; i++) { 1585 r = stops.get(i); 1586 final ActivityStack stack = r.task.stack; 1587 if (stack != null) { 1588 if (r.finishing) { 1589 stack.finishCurrentActivityLocked(r, ActivityStack.FINISH_IMMEDIATELY, false); 1590 } else { 1591 stack.stopActivityLocked(r); 1592 } 1593 } 1594 } 1595 1596 // Finish any activities that are scheduled to do so but have been 1597 // waiting for the next one to start. 1598 for (int i = 0; i < NF; i++) { 1599 r = finishes.get(i); 1600 final ActivityStack stack = r.task.stack; 1601 if (stack != null) { 1602 activityRemoved |= stack.destroyActivityLocked(r, true, "finish-idle"); 1603 } 1604 } 1605 1606 if (!booting) { 1607 // Complete user switch 1608 if (startingUsers != null) { 1609 for (int i = 0; i < startingUsers.size(); i++) { 1610 mService.mUserController.finishUserSwitch(startingUsers.get(i)); 1611 } 1612 } 1613 } 1614 1615 mService.trimApplications(); 1616 //dump(); 1617 //mWindowManager.dump(); 1618 1619 if (activityRemoved) { 1620 resumeFocusedStackTopActivityLocked(); 1621 } 1622 1623 return r; 1624 } 1625 1626 boolean handleAppDiedLocked(ProcessRecord app) { 1627 boolean hasVisibleActivities = false; 1628 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 1629 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 1630 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 1631 hasVisibleActivities |= stacks.get(stackNdx).handleAppDiedLocked(app); 1632 } 1633 } 1634 return hasVisibleActivities; 1635 } 1636 1637 void closeSystemDialogsLocked() { 1638 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 1639 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 1640 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 1641 stacks.get(stackNdx).closeSystemDialogsLocked(); 1642 } 1643 } 1644 } 1645 1646 void removeUserLocked(int userId) { 1647 mUserStackInFront.delete(userId); 1648 } 1649 1650 /** 1651 * Update the last used stack id for non-current user (current user's last 1652 * used stack is the focused stack) 1653 */ 1654 void updateUserStackLocked(int userId, ActivityStack stack) { 1655 if (userId != mCurrentUser) { 1656 mUserStackInFront.put(userId, stack != null ? stack.getStackId() : HOME_STACK_ID); 1657 } 1658 } 1659 1660 /** 1661 * @return true if some activity was finished (or would have finished if doit were true). 1662 */ 1663 boolean finishDisabledPackageActivitiesLocked(String packageName, Set<String> filterByClasses, 1664 boolean doit, boolean evenPersistent, int userId) { 1665 boolean didSomething = false; 1666 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 1667 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 1668 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 1669 final ActivityStack stack = stacks.get(stackNdx); 1670 if (stack.finishDisabledPackageActivitiesLocked( 1671 packageName, filterByClasses, doit, evenPersistent, userId)) { 1672 didSomething = true; 1673 } 1674 } 1675 } 1676 return didSomething; 1677 } 1678 1679 void updatePreviousProcessLocked(ActivityRecord r) { 1680 // Now that this process has stopped, we may want to consider 1681 // it to be the previous app to try to keep around in case 1682 // the user wants to return to it. 1683 1684 // First, found out what is currently the foreground app, so that 1685 // we don't blow away the previous app if this activity is being 1686 // hosted by the process that is actually still the foreground. 1687 ProcessRecord fgApp = null; 1688 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 1689 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 1690 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 1691 final ActivityStack stack = stacks.get(stackNdx); 1692 if (isFocusedStack(stack)) { 1693 if (stack.mResumedActivity != null) { 1694 fgApp = stack.mResumedActivity.app; 1695 } else if (stack.mPausingActivity != null) { 1696 fgApp = stack.mPausingActivity.app; 1697 } 1698 break; 1699 } 1700 } 1701 } 1702 1703 // Now set this one as the previous process, only if that really 1704 // makes sense to. 1705 if (r.app != null && fgApp != null && r.app != fgApp 1706 && r.lastVisibleTime > mService.mPreviousProcessVisibleTime 1707 && r.app != mService.mHomeProcess) { 1708 mService.mPreviousProcess = r.app; 1709 mService.mPreviousProcessVisibleTime = r.lastVisibleTime; 1710 } 1711 } 1712 1713 boolean resumeFocusedStackTopActivityLocked() { 1714 return resumeFocusedStackTopActivityLocked(null, null, null); 1715 } 1716 1717 boolean resumeFocusedStackTopActivityLocked( 1718 ActivityStack targetStack, ActivityRecord target, ActivityOptions targetOptions) { 1719 if (targetStack != null && isFocusedStack(targetStack)) { 1720 return targetStack.resumeTopActivityUncheckedLocked(target, targetOptions); 1721 } 1722 mFocusedStack.resumeTopActivityUncheckedLocked(null, null); 1723 return false; 1724 } 1725 1726 void updateActivityApplicationInfoLocked(ApplicationInfo aInfo) { 1727 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 1728 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 1729 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 1730 stacks.get(stackNdx).updateActivityApplicationInfoLocked(aInfo); 1731 } 1732 } 1733 } 1734 1735 TaskRecord finishTopRunningActivityLocked(ProcessRecord app, String reason) { 1736 TaskRecord finishedTask = null; 1737 ActivityStack focusedStack = getFocusedStack(); 1738 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 1739 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 1740 final int numStacks = stacks.size(); 1741 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 1742 final ActivityStack stack = stacks.get(stackNdx); 1743 TaskRecord t = stack.finishTopRunningActivityLocked(app, reason); 1744 if (stack == focusedStack || finishedTask == null) { 1745 finishedTask = t; 1746 } 1747 } 1748 } 1749 return finishedTask; 1750 } 1751 1752 void finishVoiceTask(IVoiceInteractionSession session) { 1753 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 1754 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 1755 final int numStacks = stacks.size(); 1756 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 1757 final ActivityStack stack = stacks.get(stackNdx); 1758 stack.finishVoiceTask(session); 1759 } 1760 } 1761 } 1762 1763 void findTaskToMoveToFrontLocked(TaskRecord task, int flags, ActivityOptions options, 1764 String reason, boolean forceNonResizeable) { 1765 if ((flags & ActivityManager.MOVE_TASK_NO_USER_ACTION) == 0) { 1766 mUserLeaving = true; 1767 } 1768 if ((flags & ActivityManager.MOVE_TASK_WITH_HOME) != 0) { 1769 // Caller wants the home activity moved with it. To accomplish this, 1770 // we'll just indicate that this task returns to the home task. 1771 task.setTaskToReturnTo(HOME_ACTIVITY_TYPE); 1772 } 1773 if (task.stack == null) { 1774 Slog.e(TAG, "findTaskToMoveToFrontLocked: can't move task=" 1775 + task + " to front. Stack is null"); 1776 return; 1777 } 1778 1779 if (task.isResizeable() && options != null) { 1780 int stackId = options.getLaunchStackId(); 1781 if (canUseActivityOptionsLaunchBounds(options, stackId)) { 1782 final Rect bounds = TaskRecord.validateBounds(options.getLaunchBounds()); 1783 task.updateOverrideConfiguration(bounds); 1784 if (stackId == INVALID_STACK_ID) { 1785 stackId = task.getLaunchStackId(); 1786 } 1787 if (stackId != task.stack.mStackId) { 1788 final ActivityStack stack = moveTaskToStackUncheckedLocked( 1789 task, stackId, ON_TOP, !FORCE_FOCUS, reason); 1790 stackId = stack.mStackId; 1791 // moveTaskToStackUncheckedLocked() should already placed the task on top, 1792 // still need moveTaskToFrontLocked() below for any transition settings. 1793 } 1794 if (StackId.resizeStackWithLaunchBounds(stackId)) { 1795 resizeStackLocked(stackId, bounds, 1796 null /* tempTaskBounds */, null /* tempTaskInsetBounds */, 1797 !PRESERVE_WINDOWS, true /* allowResizeInDockedMode */); 1798 } else { 1799 // WM resizeTask must be done after the task is moved to the correct stack, 1800 // because Task's setBounds() also updates dim layer's bounds, but that has 1801 // dependency on the stack. 1802 mWindowManager.resizeTask(task.taskId, task.mBounds, task.mOverrideConfig, 1803 false /* relayout */, false /* forced */); 1804 } 1805 } 1806 } 1807 1808 final ActivityRecord r = task.getTopActivity(); 1809 task.stack.moveTaskToFrontLocked(task, false /* noAnimation */, options, 1810 r == null ? null : r.appTimeTracker, reason); 1811 1812 if (DEBUG_STACK) Slog.d(TAG_STACK, 1813 "findTaskToMoveToFront: moved to front of stack=" + task.stack); 1814 1815 handleNonResizableTaskIfNeeded(task, INVALID_STACK_ID, task.stack.mStackId, 1816 forceNonResizeable); 1817 } 1818 1819 boolean canUseActivityOptionsLaunchBounds(ActivityOptions options, int launchStackId) { 1820 // We use the launch bounds in the activity options is the device supports freeform 1821 // window management or is launching into the pinned stack. 1822 if (options.getLaunchBounds() == null) { 1823 return false; 1824 } 1825 return (mService.mSupportsPictureInPicture && launchStackId == PINNED_STACK_ID) 1826 || mService.mSupportsFreeformWindowManagement; 1827 } 1828 1829 ActivityStack getStack(int stackId) { 1830 return getStack(stackId, !CREATE_IF_NEEDED, !ON_TOP); 1831 } 1832 1833 ActivityStack getStack(int stackId, boolean createStaticStackIfNeeded, boolean createOnTop) { 1834 ActivityContainer activityContainer = mActivityContainers.get(stackId); 1835 if (activityContainer != null) { 1836 return activityContainer.mStack; 1837 } 1838 if (!createStaticStackIfNeeded || !StackId.isStaticStack(stackId)) { 1839 return null; 1840 } 1841 return createStackOnDisplay(stackId, Display.DEFAULT_DISPLAY, createOnTop); 1842 } 1843 1844 ArrayList<ActivityStack> getStacks() { 1845 ArrayList<ActivityStack> allStacks = new ArrayList<>(); 1846 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 1847 allStacks.addAll(mActivityDisplays.valueAt(displayNdx).mStacks); 1848 } 1849 return allStacks; 1850 } 1851 1852 IBinder getHomeActivityToken() { 1853 ActivityRecord homeActivity = getHomeActivity(); 1854 if (homeActivity != null) { 1855 return homeActivity.appToken; 1856 } 1857 return null; 1858 } 1859 1860 ActivityRecord getHomeActivity() { 1861 return getHomeActivityForUser(mCurrentUser); 1862 } 1863 1864 ActivityRecord getHomeActivityForUser(int userId) { 1865 final ArrayList<TaskRecord> tasks = mHomeStack.getAllTasks(); 1866 for (int taskNdx = tasks.size() - 1; taskNdx >= 0; --taskNdx) { 1867 final TaskRecord task = tasks.get(taskNdx); 1868 if (task.isHomeTask()) { 1869 final ArrayList<ActivityRecord> activities = task.mActivities; 1870 for (int activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) { 1871 final ActivityRecord r = activities.get(activityNdx); 1872 if (r.isHomeActivity() 1873 && ((userId == UserHandle.USER_ALL) || (r.userId == userId))) { 1874 return r; 1875 } 1876 } 1877 } 1878 } 1879 return null; 1880 } 1881 1882 /** 1883 * Returns if a stack should be treated as if it's docked. Returns true if the stack is 1884 * the docked stack itself, or if it's side-by-side to the docked stack. 1885 */ 1886 boolean isStackDockedInEffect(int stackId) { 1887 return stackId == DOCKED_STACK_ID || 1888 (StackId.isResizeableByDockedStack(stackId) && getStack(DOCKED_STACK_ID) != null); 1889 } 1890 1891 ActivityContainer createVirtualActivityContainer(ActivityRecord parentActivity, 1892 IActivityContainerCallback callback) { 1893 ActivityContainer activityContainer = 1894 new VirtualActivityContainer(parentActivity, callback); 1895 mActivityContainers.put(activityContainer.mStackId, activityContainer); 1896 if (DEBUG_CONTAINERS) Slog.d(TAG_CONTAINERS, 1897 "createActivityContainer: " + activityContainer); 1898 parentActivity.mChildContainers.add(activityContainer); 1899 return activityContainer; 1900 } 1901 1902 void removeChildActivityContainers(ActivityRecord parentActivity) { 1903 final ArrayList<ActivityContainer> childStacks = parentActivity.mChildContainers; 1904 for (int containerNdx = childStacks.size() - 1; containerNdx >= 0; --containerNdx) { 1905 ActivityContainer container = childStacks.remove(containerNdx); 1906 if (DEBUG_CONTAINERS) Slog.d(TAG_CONTAINERS, "removeChildActivityContainers: removing " 1907 + container); 1908 container.release(); 1909 } 1910 } 1911 1912 void deleteActivityContainer(IActivityContainer container) { 1913 ActivityContainer activityContainer = (ActivityContainer)container; 1914 if (activityContainer != null) { 1915 if (DEBUG_CONTAINERS) Slog.d(TAG_CONTAINERS, 1916 "deleteActivityContainer: callers=" + Debug.getCallers(4)); 1917 final int stackId = activityContainer.mStackId; 1918 mActivityContainers.remove(stackId); 1919 mWindowManager.removeStack(stackId); 1920 } 1921 } 1922 1923 void resizeStackLocked(int stackId, Rect bounds, Rect tempTaskBounds, Rect tempTaskInsetBounds, 1924 boolean preserveWindows, boolean allowResizeInDockedMode) { 1925 if (stackId == DOCKED_STACK_ID) { 1926 resizeDockedStackLocked(bounds, tempTaskBounds, tempTaskInsetBounds, null, null, 1927 preserveWindows); 1928 return; 1929 } 1930 final ActivityStack stack = getStack(stackId); 1931 if (stack == null) { 1932 Slog.w(TAG, "resizeStack: stackId " + stackId + " not found."); 1933 return; 1934 } 1935 1936 if (!allowResizeInDockedMode && getStack(DOCKED_STACK_ID) != null) { 1937 // If the docked stack exist we don't allow resizes of stacks not caused by the docked 1938 // stack size changing so things don't get out of sync. 1939 return; 1940 } 1941 1942 Trace.traceBegin(TRACE_TAG_ACTIVITY_MANAGER, "am.resizeStack_" + stackId); 1943 mWindowManager.deferSurfaceLayout(); 1944 try { 1945 resizeStackUncheckedLocked(stack, bounds, tempTaskBounds, tempTaskInsetBounds); 1946 ensureConfigurationAndResume(stack, stack.topRunningActivityLocked(), preserveWindows); 1947 } finally { 1948 mWindowManager.continueSurfaceLayout(); 1949 Trace.traceEnd(TRACE_TAG_ACTIVITY_MANAGER); 1950 } 1951 } 1952 1953 void deferUpdateBounds(int stackId) { 1954 final ActivityStack stack = getStack(stackId); 1955 if (stack != null) { 1956 stack.deferUpdateBounds(); 1957 } 1958 } 1959 1960 void continueUpdateBounds(int stackId) { 1961 final ActivityStack stack = getStack(stackId); 1962 if (stack != null) { 1963 stack.continueUpdateBounds(); 1964 } 1965 } 1966 1967 void notifyAppTransitionDone() { 1968 continueUpdateBounds(HOME_STACK_ID); 1969 for (int i = mResizingTasksDuringAnimation.size() - 1; i >= 0; i--) { 1970 final int taskId = mResizingTasksDuringAnimation.valueAt(i); 1971 if (anyTaskForIdLocked(taskId) != null) { 1972 mWindowManager.setTaskDockedResizing(taskId, false); 1973 } 1974 } 1975 mResizingTasksDuringAnimation.clear(); 1976 } 1977 1978 void resizeStackUncheckedLocked(ActivityStack stack, Rect bounds, Rect tempTaskBounds, 1979 Rect tempTaskInsetBounds) { 1980 bounds = TaskRecord.validateBounds(bounds); 1981 1982 if (!stack.updateBoundsAllowed(bounds, tempTaskBounds, tempTaskInsetBounds)) { 1983 return; 1984 } 1985 1986 mTmpBounds.clear(); 1987 mTmpConfigs.clear(); 1988 mTmpInsetBounds.clear(); 1989 final ArrayList<TaskRecord> tasks = stack.getAllTasks(); 1990 final Rect taskBounds = tempTaskBounds != null ? tempTaskBounds : bounds; 1991 final Rect insetBounds = tempTaskInsetBounds != null ? tempTaskInsetBounds : taskBounds; 1992 for (int i = tasks.size() - 1; i >= 0; i--) { 1993 final TaskRecord task = tasks.get(i); 1994 if (task.isResizeable()) { 1995 if (stack.mStackId == FREEFORM_WORKSPACE_STACK_ID) { 1996 // For freeform stack we don't adjust the size of the tasks to match that 1997 // of the stack, but we do try to make sure the tasks are still contained 1998 // with the bounds of the stack. 1999 tempRect2.set(task.mBounds); 2000 fitWithinBounds(tempRect2, bounds); 2001 task.updateOverrideConfiguration(tempRect2); 2002 } else { 2003 task.updateOverrideConfiguration(taskBounds, insetBounds); 2004 } 2005 } 2006 2007 mTmpConfigs.put(task.taskId, task.mOverrideConfig); 2008 mTmpBounds.put(task.taskId, task.mBounds); 2009 if (tempTaskInsetBounds != null) { 2010 mTmpInsetBounds.put(task.taskId, tempTaskInsetBounds); 2011 } 2012 } 2013 2014 // We might trigger a configuration change. Save the current task bounds for freezing. 2015 mWindowManager.prepareFreezingTaskBounds(stack.mStackId); 2016 stack.mFullscreen = mWindowManager.resizeStack(stack.mStackId, bounds, mTmpConfigs, 2017 mTmpBounds, mTmpInsetBounds); 2018 stack.setBounds(bounds); 2019 } 2020 2021 private void ensureConfigurationAndResume(ActivityStack stack, ActivityRecord r, 2022 boolean preserveWindows) { 2023 if (r == null || !r.visible) { 2024 return; 2025 } 2026 final boolean updated = stack.ensureActivityConfigurationLocked(r, 0, 2027 preserveWindows); 2028 if (!updated) { 2029 resumeFocusedStackTopActivityLocked(); 2030 } 2031 } 2032 2033 void resizeDockedStackLocked(Rect dockedBounds, Rect tempDockedTaskBounds, 2034 Rect tempDockedTaskInsetBounds, 2035 Rect tempOtherTaskBounds, Rect tempOtherTaskInsetBounds, boolean preserveWindows) { 2036 final ActivityStack stack = getStack(DOCKED_STACK_ID); 2037 if (stack == null) { 2038 Slog.w(TAG, "resizeDockedStackLocked: docked stack not found"); 2039 return; 2040 } 2041 2042 Trace.traceBegin(TRACE_TAG_ACTIVITY_MANAGER, "am.resizeDockedStack"); 2043 mWindowManager.deferSurfaceLayout(); 2044 try { 2045 ActivityRecord r = stack.topRunningActivityLocked(); 2046 resizeStackUncheckedLocked(stack, dockedBounds, tempDockedTaskBounds, 2047 tempDockedTaskInsetBounds); 2048 2049 // TODO: Checking for isAttached might not be needed as if the user passes in null 2050 // dockedBounds then they want the docked stack to be dismissed. 2051 if (stack.mFullscreen || (dockedBounds == null && !stack.isAttached())) { 2052 // The dock stack either was dismissed or went fullscreen, which is kinda the same. 2053 // In this case we make all other static stacks fullscreen and move all 2054 // docked stack tasks to the fullscreen stack. 2055 for (int i = FIRST_STATIC_STACK_ID; i <= LAST_STATIC_STACK_ID; i++) { 2056 if (StackId.isResizeableByDockedStack(i) && getStack(i) != null) { 2057 resizeStackLocked(i, null, null, null, preserveWindows, 2058 true /* allowResizeInDockedMode */); 2059 } 2060 } 2061 2062 ArrayList<TaskRecord> tasks = stack.getAllTasks(); 2063 final int count = tasks.size(); 2064 for (int i = 0; i < count; i++) { 2065 moveTaskToStackLocked(tasks.get(i).taskId, 2066 FULLSCREEN_WORKSPACE_STACK_ID, ON_TOP, FORCE_FOCUS, "resizeStack", 2067 false /* animate */); 2068 } 2069 2070 // stack shouldn't contain anymore activities, so nothing to resume. 2071 r = null; 2072 } else { 2073 // Docked stacks occupy a dedicated region on screen so the size of all other 2074 // static stacks need to be adjusted so they don't overlap with the docked stack. 2075 // We get the bounds to use from window manager which has been adjusted for any 2076 // screen controls and is also the same for all stacks. 2077 mWindowManager.getStackDockedModeBounds( 2078 HOME_STACK_ID, tempRect, true /* ignoreVisibility */); 2079 for (int i = FIRST_STATIC_STACK_ID; i <= LAST_STATIC_STACK_ID; i++) { 2080 if (StackId.isResizeableByDockedStack(i) && getStack(i) != null) { 2081 resizeStackLocked(i, tempRect, tempOtherTaskBounds, 2082 tempOtherTaskInsetBounds, preserveWindows, 2083 true /* allowResizeInDockedMode */); 2084 } 2085 } 2086 } 2087 ensureConfigurationAndResume(stack, r, preserveWindows); 2088 } finally { 2089 mWindowManager.continueSurfaceLayout(); 2090 Trace.traceEnd(TRACE_TAG_ACTIVITY_MANAGER); 2091 } 2092 2093 mResizeDockedStackTimeout.notifyResizing(dockedBounds, 2094 tempDockedTaskBounds != null 2095 || tempDockedTaskInsetBounds != null 2096 || tempOtherTaskBounds != null 2097 || tempOtherTaskInsetBounds != null); 2098 } 2099 2100 void resizePinnedStackLocked(Rect pinnedBounds, Rect tempPinnedTaskBounds) { 2101 final ActivityStack stack = getStack(PINNED_STACK_ID); 2102 if (stack == null) { 2103 Slog.w(TAG, "resizePinnedStackLocked: pinned stack not found"); 2104 return; 2105 } 2106 Trace.traceBegin(TRACE_TAG_ACTIVITY_MANAGER, "am.resizePinnedStack"); 2107 mWindowManager.deferSurfaceLayout(); 2108 try { 2109 ActivityRecord r = stack.topRunningActivityLocked(); 2110 resizeStackUncheckedLocked(stack, pinnedBounds, tempPinnedTaskBounds, 2111 null); 2112 ensureConfigurationAndResume(stack, r, false); 2113 } finally { 2114 mWindowManager.continueSurfaceLayout(); 2115 Trace.traceEnd(TRACE_TAG_ACTIVITY_MANAGER); 2116 } 2117 } 2118 2119 boolean resizeTaskLocked(TaskRecord task, Rect bounds, int resizeMode, boolean preserveWindow, 2120 boolean deferResume) { 2121 if (!task.isResizeable()) { 2122 Slog.w(TAG, "resizeTask: task " + task + " not resizeable."); 2123 return true; 2124 } 2125 2126 // If this is a forced resize, let it go through even if the bounds is not changing, 2127 // as we might need a relayout due to surface size change (to/from fullscreen). 2128 final boolean forced = (resizeMode & RESIZE_MODE_FORCED) != 0; 2129 if (Objects.equals(task.mBounds, bounds) && !forced) { 2130 // Nothing to do here... 2131 return true; 2132 } 2133 bounds = TaskRecord.validateBounds(bounds); 2134 2135 if (!mWindowManager.isValidTaskId(task.taskId)) { 2136 // Task doesn't exist in window manager yet (e.g. was restored from recents). 2137 // All we can do for now is update the bounds so it can be used when the task is 2138 // added to window manager. 2139 task.updateOverrideConfiguration(bounds); 2140 if (task.stack != null && task.stack.mStackId != FREEFORM_WORKSPACE_STACK_ID) { 2141 // re-restore the task so it can have the proper stack association. 2142 restoreRecentTaskLocked(task, FREEFORM_WORKSPACE_STACK_ID); 2143 } 2144 return true; 2145 } 2146 2147 // Do not move the task to another stack here. 2148 // This method assumes that the task is already placed in the right stack. 2149 // we do not mess with that decision and we only do the resize! 2150 2151 Trace.traceBegin(TRACE_TAG_ACTIVITY_MANAGER, "am.resizeTask_" + task.taskId); 2152 2153 final Configuration overrideConfig = task.updateOverrideConfiguration(bounds); 2154 // This variable holds information whether the configuration didn't change in a significant 2155 // way and the activity was kept the way it was. If it's false, it means the activity had 2156 // to be relaunched due to configuration change. 2157 boolean kept = true; 2158 if (overrideConfig != null) { 2159 final ActivityRecord r = task.topRunningActivityLocked(); 2160 if (r != null) { 2161 final ActivityStack stack = task.stack; 2162 kept = stack.ensureActivityConfigurationLocked(r, 0, preserveWindow); 2163 2164 if (!deferResume) { 2165 2166 // All other activities must be made visible with their correct configuration. 2167 ensureActivitiesVisibleLocked(r, 0, !PRESERVE_WINDOWS); 2168 if (!kept) { 2169 resumeFocusedStackTopActivityLocked(); 2170 } 2171 } 2172 } 2173 } 2174 mWindowManager.resizeTask(task.taskId, task.mBounds, task.mOverrideConfig, kept, forced); 2175 2176 Trace.traceEnd(TRACE_TAG_ACTIVITY_MANAGER); 2177 return kept; 2178 } 2179 2180 ActivityStack createStackOnDisplay(int stackId, int displayId, boolean onTop) { 2181 ActivityDisplay activityDisplay = mActivityDisplays.get(displayId); 2182 if (activityDisplay == null) { 2183 return null; 2184 } 2185 2186 ActivityContainer activityContainer = new ActivityContainer(stackId); 2187 mActivityContainers.put(stackId, activityContainer); 2188 activityContainer.attachToDisplayLocked(activityDisplay, onTop); 2189 return activityContainer.mStack; 2190 } 2191 2192 int getNextStackId() { 2193 while (true) { 2194 if (mNextFreeStackId >= FIRST_DYNAMIC_STACK_ID 2195 && getStack(mNextFreeStackId) == null) { 2196 break; 2197 } 2198 mNextFreeStackId++; 2199 } 2200 return mNextFreeStackId; 2201 } 2202 2203 /** 2204 * Restores a recent task to a stack 2205 * @param task The recent task to be restored. 2206 * @param stackId The stack to restore the task to (default launch stack will be used 2207 * if stackId is {@link android.app.ActivityManager.StackId#INVALID_STACK_ID}). 2208 * @return true if the task has been restored successfully. 2209 */ 2210 private boolean restoreRecentTaskLocked(TaskRecord task, int stackId) { 2211 if (stackId == INVALID_STACK_ID) { 2212 stackId = task.getLaunchStackId(); 2213 } else if (stackId == DOCKED_STACK_ID && !task.canGoInDockedStack()) { 2214 // Preferred stack is the docked stack, but the task can't go in the docked stack. 2215 // Put it in the fullscreen stack. 2216 stackId = FULLSCREEN_WORKSPACE_STACK_ID; 2217 } 2218 2219 if (task.stack != null) { 2220 // Task has already been restored once. See if we need to do anything more 2221 if (task.stack.mStackId == stackId) { 2222 // Nothing else to do since it is already restored in the right stack. 2223 return true; 2224 } 2225 // Remove current stack association, so we can re-associate the task with the 2226 // right stack below. 2227 task.stack.removeTask(task, "restoreRecentTaskLocked", MOVING); 2228 } 2229 2230 final ActivityStack stack = 2231 getStack(stackId, CREATE_IF_NEEDED, !ON_TOP); 2232 2233 if (stack == null) { 2234 // What does this mean??? Not sure how we would get here... 2235 if (DEBUG_RECENTS) Slog.v(TAG_RECENTS, 2236 "Unable to find/create stack to restore recent task=" + task); 2237 return false; 2238 } 2239 2240 stack.addTask(task, false, "restoreRecentTask"); 2241 if (DEBUG_RECENTS) Slog.v(TAG_RECENTS, 2242 "Added restored task=" + task + " to stack=" + stack); 2243 final ArrayList<ActivityRecord> activities = task.mActivities; 2244 for (int activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) { 2245 stack.addConfigOverride(activities.get(activityNdx), task); 2246 } 2247 return true; 2248 } 2249 2250 /** 2251 * Moves the specified task record to the input stack id. 2252 * WARNING: This method performs an unchecked/raw move of the task and 2253 * can leave the system in an unstable state if used incorrectly. 2254 * Use {@link #moveTaskToStackLocked} to perform safe task movement to a stack. 2255 * @param task Task to move. 2256 * @param stackId Id of stack to move task to. 2257 * @param toTop True if the task should be placed at the top of the stack. 2258 * @param forceFocus if focus should be moved to the new stack 2259 * @param reason Reason the task is been moved. 2260 * @return The stack the task was moved to. 2261 */ 2262 ActivityStack moveTaskToStackUncheckedLocked( 2263 TaskRecord task, int stackId, boolean toTop, boolean forceFocus, String reason) { 2264 2265 if (StackId.isMultiWindowStack(stackId) && !mService.mSupportsMultiWindow) { 2266 throw new IllegalStateException("moveTaskToStackUncheckedLocked: Device doesn't " 2267 + "support multi-window task=" + task + " to stackId=" + stackId); 2268 } 2269 2270 final ActivityRecord r = task.getTopActivity(); 2271 final ActivityStack prevStack = task.stack; 2272 final boolean wasFocused = isFocusedStack(prevStack) && (topRunningActivityLocked() == r); 2273 final boolean wasResumed = wasFocused && (prevStack.mResumedActivity == r); 2274 // In some cases the focused stack isn't the front stack. E.g. pinned stack. 2275 // Whenever we are moving the top activity from the front stack we want to make sure to move 2276 // the stack to the front. 2277 final boolean wasFront = isFrontStack(prevStack) 2278 && (prevStack.topRunningActivityLocked() == r); 2279 2280 if (stackId == DOCKED_STACK_ID && !task.isResizeable()) { 2281 // We don't allow moving a unresizeable task to the docked stack since the docked 2282 // stack is used for split-screen mode and will cause things like the docked divider to 2283 // show up. We instead leave the task in its current stack or move it to the fullscreen 2284 // stack if it isn't currently in a stack. 2285 stackId = (prevStack != null) ? prevStack.mStackId : FULLSCREEN_WORKSPACE_STACK_ID; 2286 Slog.w(TAG, "Can not move unresizeable task=" + task 2287 + " to docked stack. Moving to stackId=" + stackId + " instead."); 2288 } 2289 2290 // Temporarily disable resizeablility of task we are moving. We don't want it to be resized 2291 // if a docked stack is created below which will lead to the stack we are moving from and 2292 // its resizeable tasks being resized. 2293 task.mTemporarilyUnresizable = true; 2294 final ActivityStack stack = getStack(stackId, CREATE_IF_NEEDED, toTop); 2295 task.mTemporarilyUnresizable = false; 2296 mWindowManager.moveTaskToStack(task.taskId, stack.mStackId, toTop); 2297 stack.addTask(task, toTop, reason); 2298 2299 // If the task had focus before (or we're requested to move focus), 2300 // move focus to the new stack by moving the stack to the front. 2301 stack.moveToFrontAndResumeStateIfNeeded( 2302 r, forceFocus || wasFocused || wasFront, wasResumed, reason); 2303 2304 return stack; 2305 } 2306 2307 boolean moveTaskToStackLocked(int taskId, int stackId, boolean toTop, boolean forceFocus, 2308 String reason, boolean animate) { 2309 return moveTaskToStackLocked(taskId, stackId, toTop, forceFocus, reason, animate, 2310 false /* deferResume */); 2311 } 2312 2313 boolean moveTaskToStackLocked(int taskId, int stackId, boolean toTop, boolean forceFocus, 2314 String reason, boolean animate, boolean deferResume) { 2315 final TaskRecord task = anyTaskForIdLocked(taskId); 2316 if (task == null) { 2317 Slog.w(TAG, "moveTaskToStack: no task for id=" + taskId); 2318 return false; 2319 } 2320 2321 if (task.stack != null && task.stack.mStackId == stackId) { 2322 // You are already in the right stack silly... 2323 Slog.i(TAG, "moveTaskToStack: taskId=" + taskId + " already in stackId=" + stackId); 2324 return true; 2325 } 2326 2327 if (stackId == FREEFORM_WORKSPACE_STACK_ID && !mService.mSupportsFreeformWindowManagement) { 2328 throw new IllegalArgumentException("moveTaskToStack:" 2329 + "Attempt to move task " + taskId + " to unsupported freeform stack"); 2330 } 2331 2332 final ActivityRecord topActivity = task.getTopActivity(); 2333 final int sourceStackId = task.stack != null ? task.stack.mStackId : INVALID_STACK_ID; 2334 final boolean mightReplaceWindow = 2335 StackId.replaceWindowsOnTaskMove(sourceStackId, stackId) && topActivity != null; 2336 if (mightReplaceWindow) { 2337 // We are about to relaunch the activity because its configuration changed due to 2338 // being maximized, i.e. size change. The activity will first remove the old window 2339 // and then add a new one. This call will tell window manager about this, so it can 2340 // preserve the old window until the new one is drawn. This prevents having a gap 2341 // between the removal and addition, in which no window is visible. We also want the 2342 // entrance of the new window to be properly animated. 2343 // Note here we always set the replacing window first, as the flags might be needed 2344 // during the relaunch. If we end up not doing any relaunch, we clear the flags later. 2345 mWindowManager.setReplacingWindow(topActivity.appToken, animate); 2346 } 2347 2348 mWindowManager.deferSurfaceLayout(); 2349 final int preferredLaunchStackId = stackId; 2350 boolean kept = true; 2351 try { 2352 final ActivityStack stack = moveTaskToStackUncheckedLocked( 2353 task, stackId, toTop, forceFocus, reason + " moveTaskToStack"); 2354 stackId = stack.mStackId; 2355 2356 if (!animate) { 2357 stack.mNoAnimActivities.add(topActivity); 2358 } 2359 2360 // We might trigger a configuration change. Save the current task bounds for freezing. 2361 mWindowManager.prepareFreezingTaskBounds(stack.mStackId); 2362 2363 // Make sure the task has the appropriate bounds/size for the stack it is in. 2364 if (stackId == FULLSCREEN_WORKSPACE_STACK_ID && task.mBounds != null) { 2365 kept = resizeTaskLocked(task, stack.mBounds, RESIZE_MODE_SYSTEM, 2366 !mightReplaceWindow, deferResume); 2367 } else if (stackId == FREEFORM_WORKSPACE_STACK_ID) { 2368 Rect bounds = task.getLaunchBounds(); 2369 if (bounds == null) { 2370 stack.layoutTaskInStack(task, null); 2371 bounds = task.mBounds; 2372 } 2373 kept = resizeTaskLocked(task, bounds, RESIZE_MODE_FORCED, !mightReplaceWindow, 2374 deferResume); 2375 } else if (stackId == DOCKED_STACK_ID || stackId == PINNED_STACK_ID) { 2376 kept = resizeTaskLocked(task, stack.mBounds, RESIZE_MODE_SYSTEM, 2377 !mightReplaceWindow, deferResume); 2378 } 2379 } finally { 2380 mWindowManager.continueSurfaceLayout(); 2381 } 2382 2383 if (mightReplaceWindow) { 2384 // If we didn't actual do a relaunch (indicated by kept==true meaning we kept the old 2385 // window), we need to clear the replace window settings. Otherwise, we schedule a 2386 // timeout to remove the old window if the replacing window is not coming in time. 2387 mWindowManager.scheduleClearReplacingWindowIfNeeded(topActivity.appToken, !kept); 2388 } 2389 2390 if (!deferResume) { 2391 2392 // The task might have already been running and its visibility needs to be synchronized with 2393 // the visibility of the stack / windows. 2394 ensureActivitiesVisibleLocked(null, 0, !mightReplaceWindow); 2395 resumeFocusedStackTopActivityLocked(); 2396 } 2397 2398 handleNonResizableTaskIfNeeded(task, preferredLaunchStackId, stackId); 2399 2400 return (preferredLaunchStackId == stackId); 2401 } 2402 2403 boolean moveTopStackActivityToPinnedStackLocked(int stackId, Rect bounds) { 2404 final ActivityStack stack = getStack(stackId, !CREATE_IF_NEEDED, !ON_TOP); 2405 if (stack == null) { 2406 throw new IllegalArgumentException( 2407 "moveTopStackActivityToPinnedStackLocked: Unknown stackId=" + stackId); 2408 } 2409 2410 final ActivityRecord r = stack.topRunningActivityLocked(); 2411 if (r == null) { 2412 Slog.w(TAG, "moveTopStackActivityToPinnedStackLocked: No top running activity" 2413 + " in stack=" + stack); 2414 return false; 2415 } 2416 2417 if (!mService.mForceResizableActivities && !r.supportsPictureInPicture()) { 2418 Slog.w(TAG, 2419 "moveTopStackActivityToPinnedStackLocked: Picture-In-Picture not supported for " 2420 + " r=" + r); 2421 return false; 2422 } 2423 2424 moveActivityToPinnedStackLocked(r, "moveTopActivityToPinnedStack", bounds); 2425 return true; 2426 } 2427 2428 void moveActivityToPinnedStackLocked(ActivityRecord r, String reason, Rect bounds) { 2429 mWindowManager.deferSurfaceLayout(); 2430 try { 2431 final TaskRecord task = r.task; 2432 2433 // Need to make sure the pinned stack exist so we can resize it below... 2434 final ActivityStack stack = getStack(PINNED_STACK_ID, CREATE_IF_NEEDED, ON_TOP); 2435 2436 // Resize the pinned stack to match the current size of the task the activity we are 2437 // going to be moving is currently contained in. We do this to have the right starting 2438 // animation bounds for the pinned stack to the desired bounds the caller wants. 2439 resizeStackLocked(PINNED_STACK_ID, task.mBounds, null /* tempTaskBounds */, 2440 null /* tempTaskInsetBounds */, !PRESERVE_WINDOWS, 2441 true /* allowResizeInDockedMode */); 2442 2443 if (task.mActivities.size() == 1) { 2444 // There is only one activity in the task. So, we can just move the task over to 2445 // the stack without re-parenting the activity in a different task. 2446 if (task.getTaskToReturnTo() == HOME_ACTIVITY_TYPE) { 2447 // Move the home stack forward if the task we just moved to the pinned stack 2448 // was launched from home so home should be visible behind it. 2449 moveHomeStackToFront(reason); 2450 } 2451 moveTaskToStackLocked( 2452 task.taskId, PINNED_STACK_ID, ON_TOP, FORCE_FOCUS, reason, !ANIMATE); 2453 } else { 2454 stack.moveActivityToStack(r); 2455 } 2456 } finally { 2457 mWindowManager.continueSurfaceLayout(); 2458 } 2459 2460 // The task might have already been running and its visibility needs to be synchronized 2461 // with the visibility of the stack / windows. 2462 ensureActivitiesVisibleLocked(null, 0, !PRESERVE_WINDOWS); 2463 resumeFocusedStackTopActivityLocked(); 2464 2465 mWindowManager.animateResizePinnedStack(bounds, -1); 2466 mService.notifyActivityPinnedLocked(); 2467 } 2468 2469 void positionTaskInStackLocked(int taskId, int stackId, int position) { 2470 final TaskRecord task = anyTaskForIdLocked(taskId); 2471 if (task == null) { 2472 Slog.w(TAG, "positionTaskInStackLocked: no task for id=" + taskId); 2473 return; 2474 } 2475 final ActivityStack stack = getStack(stackId, CREATE_IF_NEEDED, !ON_TOP); 2476 2477 task.updateOverrideConfigurationForStack(stack); 2478 2479 mWindowManager.positionTaskInStack( 2480 taskId, stackId, position, task.mBounds, task.mOverrideConfig); 2481 stack.positionTask(task, position); 2482 // The task might have already been running and its visibility needs to be synchronized with 2483 // the visibility of the stack / windows. 2484 stack.ensureActivityConfigurationLocked(task.topRunningActivityLocked(), 0, 2485 !PRESERVE_WINDOWS); 2486 stack.ensureActivitiesVisibleLocked(null, 0, !PRESERVE_WINDOWS); 2487 resumeFocusedStackTopActivityLocked(); 2488 } 2489 2490 ActivityRecord findTaskLocked(ActivityRecord r) { 2491 mTmpFindTaskResult.r = null; 2492 mTmpFindTaskResult.matchedByRootAffinity = false; 2493 if (DEBUG_TASKS) Slog.d(TAG_TASKS, "Looking for task of " + r); 2494 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2495 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2496 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2497 final ActivityStack stack = stacks.get(stackNdx); 2498 if (!r.isApplicationActivity() && !stack.isHomeStack()) { 2499 if (DEBUG_TASKS) Slog.d(TAG_TASKS, "Skipping stack: (home activity) " + stack); 2500 continue; 2501 } 2502 if (!stack.mActivityContainer.isEligibleForNewTasks()) { 2503 if (DEBUG_TASKS) Slog.d(TAG_TASKS, 2504 "Skipping stack: (new task not allowed) " + stack); 2505 continue; 2506 } 2507 stack.findTaskLocked(r, mTmpFindTaskResult); 2508 // It is possible to have task in multiple stacks with the same root affinity. 2509 // If the match we found was based on root affinity we keep on looking to see if 2510 // there is a better match in another stack. We eventually return the match based 2511 // on root affinity if we don't find a better match. 2512 if (mTmpFindTaskResult.r != null && !mTmpFindTaskResult.matchedByRootAffinity) { 2513 return mTmpFindTaskResult.r; 2514 } 2515 } 2516 } 2517 if (DEBUG_TASKS && mTmpFindTaskResult.r == null) Slog.d(TAG_TASKS, "No task found"); 2518 return mTmpFindTaskResult.r; 2519 } 2520 2521 ActivityRecord findActivityLocked(Intent intent, ActivityInfo info) { 2522 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2523 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2524 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2525 final ActivityRecord ar = stacks.get(stackNdx).findActivityLocked(intent, info); 2526 if (ar != null) { 2527 return ar; 2528 } 2529 } 2530 } 2531 return null; 2532 } 2533 2534 void goingToSleepLocked() { 2535 scheduleSleepTimeout(); 2536 if (!mGoingToSleep.isHeld()) { 2537 mGoingToSleep.acquire(); 2538 if (mLaunchingActivity.isHeld()) { 2539 if (VALIDATE_WAKE_LOCK_CALLER && Binder.getCallingUid() != Process.myUid()) { 2540 throw new IllegalStateException("Calling must be system uid"); 2541 } 2542 mLaunchingActivity.release(); 2543 mService.mHandler.removeMessages(LAUNCH_TIMEOUT_MSG); 2544 } 2545 } 2546 checkReadyForSleepLocked(); 2547 } 2548 2549 boolean shutdownLocked(int timeout) { 2550 goingToSleepLocked(); 2551 2552 boolean timedout = false; 2553 final long endTime = System.currentTimeMillis() + timeout; 2554 while (true) { 2555 boolean cantShutdown = false; 2556 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2557 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2558 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2559 cantShutdown |= stacks.get(stackNdx).checkReadyForSleepLocked(); 2560 } 2561 } 2562 if (cantShutdown) { 2563 long timeRemaining = endTime - System.currentTimeMillis(); 2564 if (timeRemaining > 0) { 2565 try { 2566 mService.wait(timeRemaining); 2567 } catch (InterruptedException e) { 2568 } 2569 } else { 2570 Slog.w(TAG, "Activity manager shutdown timed out"); 2571 timedout = true; 2572 break; 2573 } 2574 } else { 2575 break; 2576 } 2577 } 2578 2579 // Force checkReadyForSleep to complete. 2580 mSleepTimeout = true; 2581 checkReadyForSleepLocked(); 2582 2583 return timedout; 2584 } 2585 2586 void comeOutOfSleepIfNeededLocked() { 2587 removeSleepTimeouts(); 2588 if (mGoingToSleep.isHeld()) { 2589 mGoingToSleep.release(); 2590 } 2591 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2592 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2593 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2594 final ActivityStack stack = stacks.get(stackNdx); 2595 stack.awakeFromSleepingLocked(); 2596 if (isFocusedStack(stack)) { 2597 resumeFocusedStackTopActivityLocked(); 2598 } 2599 } 2600 } 2601 mGoingToSleepActivities.clear(); 2602 } 2603 2604 void activitySleptLocked(ActivityRecord r) { 2605 mGoingToSleepActivities.remove(r); 2606 checkReadyForSleepLocked(); 2607 } 2608 2609 void checkReadyForSleepLocked() { 2610 if (!mService.isSleepingOrShuttingDown()) { 2611 // Do not care. 2612 return; 2613 } 2614 2615 if (!mSleepTimeout) { 2616 boolean dontSleep = false; 2617 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2618 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2619 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2620 dontSleep |= stacks.get(stackNdx).checkReadyForSleepLocked(); 2621 } 2622 } 2623 2624 if (mStoppingActivities.size() > 0) { 2625 // Still need to tell some activities to stop; can't sleep yet. 2626 if (DEBUG_PAUSE) Slog.v(TAG_PAUSE, "Sleep still need to stop " 2627 + mStoppingActivities.size() + " activities"); 2628 scheduleIdleLocked(); 2629 dontSleep = true; 2630 } 2631 2632 if (mGoingToSleepActivities.size() > 0) { 2633 // Still need to tell some activities to sleep; can't sleep yet. 2634 if (DEBUG_PAUSE) Slog.v(TAG_PAUSE, "Sleep still need to sleep " 2635 + mGoingToSleepActivities.size() + " activities"); 2636 dontSleep = true; 2637 } 2638 2639 if (dontSleep) { 2640 return; 2641 } 2642 } 2643 2644 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2645 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2646 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2647 stacks.get(stackNdx).goToSleep(); 2648 } 2649 } 2650 2651 removeSleepTimeouts(); 2652 2653 if (mGoingToSleep.isHeld()) { 2654 mGoingToSleep.release(); 2655 } 2656 if (mService.mShuttingDown) { 2657 mService.notifyAll(); 2658 } 2659 } 2660 2661 boolean reportResumedActivityLocked(ActivityRecord r) { 2662 final ActivityStack stack = r.task.stack; 2663 if (isFocusedStack(stack)) { 2664 mService.updateUsageStats(r, true); 2665 } 2666 if (allResumedActivitiesComplete()) { 2667 ensureActivitiesVisibleLocked(null, 0, !PRESERVE_WINDOWS); 2668 mWindowManager.executeAppTransition(); 2669 return true; 2670 } 2671 return false; 2672 } 2673 2674 void handleAppCrashLocked(ProcessRecord app) { 2675 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2676 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2677 int stackNdx = stacks.size() - 1; 2678 while (stackNdx >= 0) { 2679 stacks.get(stackNdx).handleAppCrashLocked(app); 2680 stackNdx--; 2681 } 2682 } 2683 } 2684 2685 boolean requestVisibleBehindLocked(ActivityRecord r, boolean visible) { 2686 final ActivityStack stack = r.task.stack; 2687 if (stack == null) { 2688 if (DEBUG_VISIBLE_BEHIND) Slog.d(TAG_VISIBLE_BEHIND, 2689 "requestVisibleBehind: r=" + r + " visible=" + visible + " stack is null"); 2690 return false; 2691 } 2692 final boolean isVisible = stack.hasVisibleBehindActivity(); 2693 if (DEBUG_VISIBLE_BEHIND) Slog.d(TAG_VISIBLE_BEHIND, 2694 "requestVisibleBehind r=" + r + " visible=" + visible + " isVisible=" + isVisible); 2695 2696 final ActivityRecord top = topRunningActivityLocked(); 2697 if (top == null || top == r || (visible == isVisible)) { 2698 if (DEBUG_VISIBLE_BEHIND) Slog.d(TAG_VISIBLE_BEHIND, "requestVisibleBehind: quick return"); 2699 stack.setVisibleBehindActivity(visible ? r : null); 2700 return true; 2701 } 2702 2703 // A non-top activity is reporting a visibility change. 2704 if (visible && top.fullscreen) { 2705 // Let the caller know that it can't be seen. 2706 if (DEBUG_VISIBLE_BEHIND) Slog.d(TAG_VISIBLE_BEHIND, 2707 "requestVisibleBehind: returning top.fullscreen=" + top.fullscreen 2708 + " top.state=" + top.state + " top.app=" + top.app + " top.app.thread=" 2709 + top.app.thread); 2710 return false; 2711 } else if (!visible && stack.getVisibleBehindActivity() != r) { 2712 // Only the activity set as currently visible behind should actively reset its 2713 // visible behind state. 2714 if (DEBUG_VISIBLE_BEHIND) Slog.d(TAG_VISIBLE_BEHIND, 2715 "requestVisibleBehind: returning visible=" + visible 2716 + " stack.getVisibleBehindActivity()=" + stack.getVisibleBehindActivity() 2717 + " r=" + r); 2718 return false; 2719 } 2720 2721 stack.setVisibleBehindActivity(visible ? r : null); 2722 if (!visible) { 2723 // If there is a translucent home activity, we need to force it stop being translucent, 2724 // because we can't depend on the application to necessarily perform that operation. 2725 // Check out b/14469711 for details. 2726 final ActivityRecord next = stack.findNextTranslucentActivity(r); 2727 if (next != null && next.isHomeActivity()) { 2728 mService.convertFromTranslucent(next.appToken); 2729 } 2730 } 2731 if (top.app != null && top.app.thread != null) { 2732 // Notify the top app of the change. 2733 try { 2734 top.app.thread.scheduleBackgroundVisibleBehindChanged(top.appToken, visible); 2735 } catch (RemoteException e) { 2736 } 2737 } 2738 return true; 2739 } 2740 2741 // Called when WindowManager has finished animating the launchingBehind activity to the back. 2742 void handleLaunchTaskBehindCompleteLocked(ActivityRecord r) { 2743 final TaskRecord task = r.task; 2744 final ActivityStack stack = task.stack; 2745 2746 r.mLaunchTaskBehind = false; 2747 task.setLastThumbnailLocked(stack.screenshotActivitiesLocked(r)); 2748 mRecentTasks.addLocked(task); 2749 mService.notifyTaskStackChangedLocked(); 2750 mWindowManager.setAppVisibility(r.appToken, false); 2751 2752 // When launching tasks behind, update the last active time of the top task after the new 2753 // task has been shown briefly 2754 final ActivityRecord top = stack.topActivity(); 2755 if (top != null) { 2756 top.task.touchActiveTime(); 2757 } 2758 } 2759 2760 void scheduleLaunchTaskBehindComplete(IBinder token) { 2761 mHandler.obtainMessage(LAUNCH_TASK_BEHIND_COMPLETE, token).sendToTarget(); 2762 } 2763 2764 void ensureActivitiesVisibleLocked(ActivityRecord starting, int configChanges, 2765 boolean preserveWindows) { 2766 // First the front stacks. In case any are not fullscreen and are in front of home. 2767 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2768 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2769 final int topStackNdx = stacks.size() - 1; 2770 for (int stackNdx = topStackNdx; stackNdx >= 0; --stackNdx) { 2771 final ActivityStack stack = stacks.get(stackNdx); 2772 stack.ensureActivitiesVisibleLocked(starting, configChanges, preserveWindows); 2773 } 2774 } 2775 } 2776 2777 void invalidateTaskLayers() { 2778 mTaskLayersChanged = true; 2779 } 2780 2781 void rankTaskLayersIfNeeded() { 2782 if (!mTaskLayersChanged) { 2783 return; 2784 } 2785 mTaskLayersChanged = false; 2786 for (int displayNdx = 0; displayNdx < mActivityDisplays.size(); displayNdx++) { 2787 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2788 int baseLayer = 0; 2789 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2790 baseLayer += stacks.get(stackNdx).rankTaskLayers(baseLayer); 2791 } 2792 } 2793 } 2794 2795 void clearOtherAppTimeTrackers(AppTimeTracker except) { 2796 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2797 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2798 final int topStackNdx = stacks.size() - 1; 2799 for (int stackNdx = topStackNdx; stackNdx >= 0; --stackNdx) { 2800 final ActivityStack stack = stacks.get(stackNdx); 2801 stack.clearOtherAppTimeTrackers(except); 2802 } 2803 } 2804 } 2805 2806 void scheduleDestroyAllActivities(ProcessRecord app, String reason) { 2807 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2808 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2809 final int numStacks = stacks.size(); 2810 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 2811 final ActivityStack stack = stacks.get(stackNdx); 2812 stack.scheduleDestroyActivities(app, reason); 2813 } 2814 } 2815 } 2816 2817 void releaseSomeActivitiesLocked(ProcessRecord app, String reason) { 2818 // Examine all activities currently running in the process. 2819 TaskRecord firstTask = null; 2820 // Tasks is non-null only if two or more tasks are found. 2821 ArraySet<TaskRecord> tasks = null; 2822 if (DEBUG_RELEASE) Slog.d(TAG_RELEASE, "Trying to release some activities in " + app); 2823 for (int i = 0; i < app.activities.size(); i++) { 2824 ActivityRecord r = app.activities.get(i); 2825 // First, if we find an activity that is in the process of being destroyed, 2826 // then we just aren't going to do anything for now; we want things to settle 2827 // down before we try to prune more activities. 2828 if (r.finishing || r.state == DESTROYING || r.state == DESTROYED) { 2829 if (DEBUG_RELEASE) Slog.d(TAG_RELEASE, "Abort release; already destroying: " + r); 2830 return; 2831 } 2832 // Don't consider any activies that are currently not in a state where they 2833 // can be destroyed. 2834 if (r.visible || !r.stopped || !r.haveState || r.state == RESUMED || r.state == PAUSING 2835 || r.state == PAUSED || r.state == STOPPING) { 2836 if (DEBUG_RELEASE) Slog.d(TAG_RELEASE, "Not releasing in-use activity: " + r); 2837 continue; 2838 } 2839 if (r.task != null) { 2840 if (DEBUG_RELEASE) Slog.d(TAG_RELEASE, "Collecting release task " + r.task 2841 + " from " + r); 2842 if (firstTask == null) { 2843 firstTask = r.task; 2844 } else if (firstTask != r.task) { 2845 if (tasks == null) { 2846 tasks = new ArraySet<>(); 2847 tasks.add(firstTask); 2848 } 2849 tasks.add(r.task); 2850 } 2851 } 2852 } 2853 if (tasks == null) { 2854 if (DEBUG_RELEASE) Slog.d(TAG_RELEASE, "Didn't find two or more tasks to release"); 2855 return; 2856 } 2857 // If we have activities in multiple tasks that are in a position to be destroyed, 2858 // let's iterate through the tasks and release the oldest one. 2859 final int numDisplays = mActivityDisplays.size(); 2860 for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) { 2861 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2862 // Step through all stacks starting from behind, to hit the oldest things first. 2863 for (int stackNdx = 0; stackNdx < stacks.size(); stackNdx++) { 2864 final ActivityStack stack = stacks.get(stackNdx); 2865 // Try to release activities in this stack; if we manage to, we are done. 2866 if (stack.releaseSomeActivitiesLocked(app, tasks, reason) > 0) { 2867 return; 2868 } 2869 } 2870 } 2871 } 2872 2873 boolean switchUserLocked(int userId, UserState uss) { 2874 mUserStackInFront.put(mCurrentUser, mFocusedStack.getStackId()); 2875 final int restoreStackId = mUserStackInFront.get(userId, HOME_STACK_ID); 2876 mCurrentUser = userId; 2877 2878 mStartingUsers.add(uss); 2879 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2880 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2881 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2882 final ActivityStack stack = stacks.get(stackNdx); 2883 stack.switchUserLocked(userId); 2884 TaskRecord task = stack.topTask(); 2885 if (task != null) { 2886 mWindowManager.moveTaskToTop(task.taskId); 2887 } 2888 } 2889 } 2890 2891 ActivityStack stack = getStack(restoreStackId); 2892 if (stack == null) { 2893 stack = mHomeStack; 2894 } 2895 final boolean homeInFront = stack.isHomeStack(); 2896 if (stack.isOnHomeDisplay()) { 2897 stack.moveToFront("switchUserOnHomeDisplay"); 2898 } else { 2899 // Stack was moved to another display while user was swapped out. 2900 resumeHomeStackTask(HOME_ACTIVITY_TYPE, null, "switchUserOnOtherDisplay"); 2901 } 2902 return homeInFront; 2903 } 2904 2905 /** Checks whether the userid is a profile of the current user. */ 2906 boolean isCurrentProfileLocked(int userId) { 2907 if (userId == mCurrentUser) return true; 2908 return mService.mUserController.isCurrentProfileLocked(userId); 2909 } 2910 2911 /** Checks whether the activity should be shown for current user. */ 2912 boolean okToShowLocked(ActivityRecord r) { 2913 return r != null && (isCurrentProfileLocked(r.userId) 2914 || (r.info.flags & FLAG_SHOW_FOR_ALL_USERS) != 0); 2915 } 2916 2917 final ArrayList<ActivityRecord> processStoppingActivitiesLocked(boolean remove) { 2918 ArrayList<ActivityRecord> stops = null; 2919 2920 final boolean nowVisible = allResumedActivitiesVisible(); 2921 for (int activityNdx = mStoppingActivities.size() - 1; activityNdx >= 0; --activityNdx) { 2922 ActivityRecord s = mStoppingActivities.get(activityNdx); 2923 final boolean waitingVisible = mWaitingVisibleActivities.contains(s); 2924 if (DEBUG_STATES) Slog.v(TAG, "Stopping " + s + ": nowVisible=" + nowVisible 2925 + " waitingVisible=" + waitingVisible + " finishing=" + s.finishing); 2926 if (waitingVisible && nowVisible) { 2927 mWaitingVisibleActivities.remove(s); 2928 if (s.finishing) { 2929 // If this activity is finishing, it is sitting on top of 2930 // everyone else but we now know it is no longer needed... 2931 // so get rid of it. Otherwise, we need to go through the 2932 // normal flow and hide it once we determine that it is 2933 // hidden by the activities in front of it. 2934 if (DEBUG_STATES) Slog.v(TAG, "Before stopping, can hide: " + s); 2935 mWindowManager.setAppVisibility(s.appToken, false); 2936 } 2937 } 2938 if ((!waitingVisible || mService.isSleepingOrShuttingDown()) && remove) { 2939 if (DEBUG_STATES) Slog.v(TAG, "Ready to stop: " + s); 2940 if (stops == null) { 2941 stops = new ArrayList<>(); 2942 } 2943 stops.add(s); 2944 mStoppingActivities.remove(activityNdx); 2945 } 2946 } 2947 2948 return stops; 2949 } 2950 2951 void validateTopActivitiesLocked() { 2952 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2953 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2954 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2955 final ActivityStack stack = stacks.get(stackNdx); 2956 final ActivityRecord r = stack.topRunningActivityLocked(); 2957 final ActivityState state = r == null ? DESTROYED : r.state; 2958 if (isFocusedStack(stack)) { 2959 if (r == null) Slog.e(TAG, 2960 "validateTop...: null top activity, stack=" + stack); 2961 else { 2962 final ActivityRecord pausing = stack.mPausingActivity; 2963 if (pausing != null && pausing == r) Slog.e(TAG, 2964 "validateTop...: top stack has pausing activity r=" + r 2965 + " state=" + state); 2966 if (state != INITIALIZING && state != RESUMED) Slog.e(TAG, 2967 "validateTop...: activity in front not resumed r=" + r 2968 + " state=" + state); 2969 } 2970 } else { 2971 final ActivityRecord resumed = stack.mResumedActivity; 2972 if (resumed != null && resumed == r) Slog.e(TAG, 2973 "validateTop...: back stack has resumed activity r=" + r 2974 + " state=" + state); 2975 if (r != null && (state == INITIALIZING || state == RESUMED)) Slog.e(TAG, 2976 "validateTop...: activity in back resumed r=" + r + " state=" + state); 2977 } 2978 } 2979 } 2980 } 2981 2982 private String lockTaskModeToString() { 2983 switch (mLockTaskModeState) { 2984 case LOCK_TASK_MODE_LOCKED: 2985 return "LOCKED"; 2986 case LOCK_TASK_MODE_PINNED: 2987 return "PINNED"; 2988 case LOCK_TASK_MODE_NONE: 2989 return "NONE"; 2990 default: return "unknown=" + mLockTaskModeState; 2991 } 2992 } 2993 2994 public void dump(PrintWriter pw, String prefix) { 2995 pw.print(prefix); pw.print("mFocusedStack=" + mFocusedStack); 2996 pw.print(" mLastFocusedStack="); pw.println(mLastFocusedStack); 2997 pw.print(prefix); pw.println("mSleepTimeout=" + mSleepTimeout); 2998 pw.print(prefix); 2999 pw.println("mCurTaskIdForUser=" + mCurTaskIdForUser); 3000 pw.print(prefix); pw.println("mUserStackInFront=" + mUserStackInFront); 3001 pw.print(prefix); pw.println("mActivityContainers=" + mActivityContainers); 3002 pw.print(prefix); pw.print("mLockTaskModeState=" + lockTaskModeToString()); 3003 final SparseArray<String[]> packages = mService.mLockTaskPackages; 3004 if (packages.size() > 0) { 3005 pw.println(" mLockTaskPackages (userId:packages)="); 3006 for (int i = 0; i < packages.size(); ++i) { 3007 pw.print(prefix); pw.print(prefix); pw.print(packages.keyAt(i)); 3008 pw.print(":"); pw.println(Arrays.toString(packages.valueAt(i))); 3009 } 3010 } 3011 pw.println(" mLockTaskModeTasks" + mLockTaskModeTasks); 3012 } 3013 3014 ArrayList<ActivityRecord> getDumpActivitiesLocked(String name) { 3015 return mFocusedStack.getDumpActivitiesLocked(name); 3016 } 3017 3018 static boolean printThisActivity(PrintWriter pw, ActivityRecord activity, String dumpPackage, 3019 boolean needSep, String prefix) { 3020 if (activity != null) { 3021 if (dumpPackage == null || dumpPackage.equals(activity.packageName)) { 3022 if (needSep) { 3023 pw.println(); 3024 } 3025 pw.print(prefix); 3026 pw.println(activity); 3027 return true; 3028 } 3029 } 3030 return false; 3031 } 3032 3033 boolean dumpActivitiesLocked(FileDescriptor fd, PrintWriter pw, boolean dumpAll, 3034 boolean dumpClient, String dumpPackage) { 3035 boolean printed = false; 3036 boolean needSep = false; 3037 for (int displayNdx = 0; displayNdx < mActivityDisplays.size(); ++displayNdx) { 3038 ActivityDisplay activityDisplay = mActivityDisplays.valueAt(displayNdx); 3039 pw.print("Display #"); pw.print(activityDisplay.mDisplayId); 3040 pw.println(" (activities from top to bottom):"); 3041 ArrayList<ActivityStack> stacks = activityDisplay.mStacks; 3042 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 3043 final ActivityStack stack = stacks.get(stackNdx); 3044 StringBuilder stackHeader = new StringBuilder(128); 3045 stackHeader.append(" Stack #"); 3046 stackHeader.append(stack.mStackId); 3047 stackHeader.append(":"); 3048 stackHeader.append("\n"); 3049 stackHeader.append(" mFullscreen=" + stack.mFullscreen); 3050 stackHeader.append("\n"); 3051 stackHeader.append(" mBounds=" + stack.mBounds); 3052 printed |= stack.dumpActivitiesLocked(fd, pw, dumpAll, dumpClient, dumpPackage, 3053 needSep, stackHeader.toString()); 3054 printed |= dumpHistoryList(fd, pw, stack.mLRUActivities, " ", "Run", false, 3055 !dumpAll, false, dumpPackage, true, 3056 " Running activities (most recent first):", null); 3057 3058 needSep = printed; 3059 boolean pr = printThisActivity(pw, stack.mPausingActivity, dumpPackage, needSep, 3060 " mPausingActivity: "); 3061 if (pr) { 3062 printed = true; 3063 needSep = false; 3064 } 3065 pr = printThisActivity(pw, stack.mResumedActivity, dumpPackage, needSep, 3066 " mResumedActivity: "); 3067 if (pr) { 3068 printed = true; 3069 needSep = false; 3070 } 3071 if (dumpAll) { 3072 pr = printThisActivity(pw, stack.mLastPausedActivity, dumpPackage, needSep, 3073 " mLastPausedActivity: "); 3074 if (pr) { 3075 printed = true; 3076 needSep = true; 3077 } 3078 printed |= printThisActivity(pw, stack.mLastNoHistoryActivity, dumpPackage, 3079 needSep, " mLastNoHistoryActivity: "); 3080 } 3081 needSep = printed; 3082 } 3083 } 3084 3085 printed |= dumpHistoryList(fd, pw, mFinishingActivities, " ", "Fin", false, !dumpAll, 3086 false, dumpPackage, true, " Activities waiting to finish:", null); 3087 printed |= dumpHistoryList(fd, pw, mStoppingActivities, " ", "Stop", false, !dumpAll, 3088 false, dumpPackage, true, " Activities waiting to stop:", null); 3089 printed |= dumpHistoryList(fd, pw, mWaitingVisibleActivities, " ", "Wait", false, !dumpAll, 3090 false, dumpPackage, true, " Activities waiting for another to become visible:", 3091 null); 3092 printed |= dumpHistoryList(fd, pw, mGoingToSleepActivities, " ", "Sleep", false, !dumpAll, 3093 false, dumpPackage, true, " Activities waiting to sleep:", null); 3094 printed |= dumpHistoryList(fd, pw, mGoingToSleepActivities, " ", "Sleep", false, !dumpAll, 3095 false, dumpPackage, true, " Activities waiting to sleep:", null); 3096 3097 return printed; 3098 } 3099 3100 static boolean dumpHistoryList(FileDescriptor fd, PrintWriter pw, List<ActivityRecord> list, 3101 String prefix, String label, boolean complete, boolean brief, boolean client, 3102 String dumpPackage, boolean needNL, String header1, String header2) { 3103 TaskRecord lastTask = null; 3104 String innerPrefix = null; 3105 String[] args = null; 3106 boolean printed = false; 3107 for (int i=list.size()-1; i>=0; i--) { 3108 final ActivityRecord r = list.get(i); 3109 if (dumpPackage != null && !dumpPackage.equals(r.packageName)) { 3110 continue; 3111 } 3112 if (innerPrefix == null) { 3113 innerPrefix = prefix + " "; 3114 args = new String[0]; 3115 } 3116 printed = true; 3117 final boolean full = !brief && (complete || !r.isInHistory()); 3118 if (needNL) { 3119 pw.println(""); 3120 needNL = false; 3121 } 3122 if (header1 != null) { 3123 pw.println(header1); 3124 header1 = null; 3125 } 3126 if (header2 != null) { 3127 pw.println(header2); 3128 header2 = null; 3129 } 3130 if (lastTask != r.task) { 3131 lastTask = r.task; 3132 pw.print(prefix); 3133 pw.print(full ? "* " : " "); 3134 pw.println(lastTask); 3135 if (full) { 3136 lastTask.dump(pw, prefix + " "); 3137 } else if (complete) { 3138 // Complete + brief == give a summary. Isn't that obvious?!? 3139 if (lastTask.intent != null) { 3140 pw.print(prefix); pw.print(" "); 3141 pw.println(lastTask.intent.toInsecureStringWithClip()); 3142 } 3143 } 3144 } 3145 pw.print(prefix); pw.print(full ? " * " : " "); pw.print(label); 3146 pw.print(" #"); pw.print(i); pw.print(": "); 3147 pw.println(r); 3148 if (full) { 3149 r.dump(pw, innerPrefix); 3150 } else if (complete) { 3151 // Complete + brief == give a summary. Isn't that obvious?!? 3152 pw.print(innerPrefix); pw.println(r.intent.toInsecureString()); 3153 if (r.app != null) { 3154 pw.print(innerPrefix); pw.println(r.app); 3155 } 3156 } 3157 if (client && r.app != null && r.app.thread != null) { 3158 // flush anything that is already in the PrintWriter since the thread is going 3159 // to write to the file descriptor directly 3160 pw.flush(); 3161 try { 3162 TransferPipe tp = new TransferPipe(); 3163 try { 3164 r.app.thread.dumpActivity(tp.getWriteFd().getFileDescriptor(), 3165 r.appToken, innerPrefix, args); 3166 // Short timeout, since blocking here can 3167 // deadlock with the application. 3168 tp.go(fd, 2000); 3169 } finally { 3170 tp.kill(); 3171 } 3172 } catch (IOException e) { 3173 pw.println(innerPrefix + "Failure while dumping the activity: " + e); 3174 } catch (RemoteException e) { 3175 pw.println(innerPrefix + "Got a RemoteException while dumping the activity"); 3176 } 3177 needNL = true; 3178 } 3179 } 3180 return printed; 3181 } 3182 3183 void scheduleIdleTimeoutLocked(ActivityRecord next) { 3184 if (DEBUG_IDLE) Slog.d(TAG_IDLE, 3185 "scheduleIdleTimeoutLocked: Callers=" + Debug.getCallers(4)); 3186 Message msg = mHandler.obtainMessage(IDLE_TIMEOUT_MSG, next); 3187 mHandler.sendMessageDelayed(msg, IDLE_TIMEOUT); 3188 } 3189 3190 final void scheduleIdleLocked() { 3191 mHandler.sendEmptyMessage(IDLE_NOW_MSG); 3192 } 3193 3194 void removeTimeoutsForActivityLocked(ActivityRecord r) { 3195 if (DEBUG_IDLE) Slog.d(TAG_IDLE, "removeTimeoutsForActivity: Callers=" 3196 + Debug.getCallers(4)); 3197 mHandler.removeMessages(IDLE_TIMEOUT_MSG, r); 3198 } 3199 3200 final void scheduleResumeTopActivities() { 3201 if (!mHandler.hasMessages(RESUME_TOP_ACTIVITY_MSG)) { 3202 mHandler.sendEmptyMessage(RESUME_TOP_ACTIVITY_MSG); 3203 } 3204 } 3205 3206 void removeSleepTimeouts() { 3207 mSleepTimeout = false; 3208 mHandler.removeMessages(SLEEP_TIMEOUT_MSG); 3209 } 3210 3211 final void scheduleSleepTimeout() { 3212 removeSleepTimeouts(); 3213 mHandler.sendEmptyMessageDelayed(SLEEP_TIMEOUT_MSG, SLEEP_TIMEOUT); 3214 } 3215 3216 @Override 3217 public void onDisplayAdded(int displayId) { 3218 if (DEBUG_STACK) Slog.v(TAG, "Display added displayId=" + displayId); 3219 mHandler.sendMessage(mHandler.obtainMessage(HANDLE_DISPLAY_ADDED, displayId, 0)); 3220 } 3221 3222 @Override 3223 public void onDisplayRemoved(int displayId) { 3224 if (DEBUG_STACK) Slog.v(TAG, "Display removed displayId=" + displayId); 3225 mHandler.sendMessage(mHandler.obtainMessage(HANDLE_DISPLAY_REMOVED, displayId, 0)); 3226 } 3227 3228 @Override 3229 public void onDisplayChanged(int displayId) { 3230 if (DEBUG_STACK) Slog.v(TAG, "Display changed displayId=" + displayId); 3231 mHandler.sendMessage(mHandler.obtainMessage(HANDLE_DISPLAY_CHANGED, displayId, 0)); 3232 } 3233 3234 private void handleDisplayAdded(int displayId) { 3235 boolean newDisplay; 3236 synchronized (mService) { 3237 newDisplay = mActivityDisplays.get(displayId) == null; 3238 if (newDisplay) { 3239 ActivityDisplay activityDisplay = new ActivityDisplay(displayId); 3240 if (activityDisplay.mDisplay == null) { 3241 Slog.w(TAG, "Display " + displayId + " gone before initialization complete"); 3242 return; 3243 } 3244 mActivityDisplays.put(displayId, activityDisplay); 3245 calculateDefaultMinimalSizeOfResizeableTasks(activityDisplay); 3246 } 3247 } 3248 if (newDisplay) { 3249 mWindowManager.onDisplayAdded(displayId); 3250 } 3251 } 3252 3253 private void calculateDefaultMinimalSizeOfResizeableTasks(ActivityDisplay display) { 3254 mDefaultMinimalSizeOfResizeableTask = 3255 mService.mContext.getResources().getDimensionPixelSize( 3256 com.android.internal.R.dimen.default_minimal_size_resizable_task); 3257 } 3258 3259 private void handleDisplayRemoved(int displayId) { 3260 synchronized (mService) { 3261 ActivityDisplay activityDisplay = mActivityDisplays.get(displayId); 3262 if (activityDisplay != null) { 3263 ArrayList<ActivityStack> stacks = activityDisplay.mStacks; 3264 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 3265 stacks.get(stackNdx).mActivityContainer.detachLocked(); 3266 } 3267 mActivityDisplays.remove(displayId); 3268 } 3269 } 3270 mWindowManager.onDisplayRemoved(displayId); 3271 } 3272 3273 private void handleDisplayChanged(int displayId) { 3274 synchronized (mService) { 3275 ActivityDisplay activityDisplay = mActivityDisplays.get(displayId); 3276 if (activityDisplay != null) { 3277 // TODO: Update the bounds. 3278 } 3279 } 3280 mWindowManager.onDisplayChanged(displayId); 3281 } 3282 3283 private StackInfo getStackInfoLocked(ActivityStack stack) { 3284 StackInfo info = new StackInfo(); 3285 mWindowManager.getStackBounds(stack.mStackId, info.bounds); 3286 info.displayId = Display.DEFAULT_DISPLAY; 3287 info.stackId = stack.mStackId; 3288 info.userId = stack.mCurrentUser; 3289 3290 ArrayList<TaskRecord> tasks = stack.getAllTasks(); 3291 final int numTasks = tasks.size(); 3292 int[] taskIds = new int[numTasks]; 3293 String[] taskNames = new String[numTasks]; 3294 Rect[] taskBounds = new Rect[numTasks]; 3295 int[] taskUserIds = new int[numTasks]; 3296 for (int i = 0; i < numTasks; ++i) { 3297 final TaskRecord task = tasks.get(i); 3298 taskIds[i] = task.taskId; 3299 taskNames[i] = task.origActivity != null ? task.origActivity.flattenToString() 3300 : task.realActivity != null ? task.realActivity.flattenToString() 3301 : task.getTopActivity() != null ? task.getTopActivity().packageName 3302 : "unknown"; 3303 taskBounds[i] = new Rect(); 3304 mWindowManager.getTaskBounds(task.taskId, taskBounds[i]); 3305 taskUserIds[i] = task.userId; 3306 } 3307 info.taskIds = taskIds; 3308 info.taskNames = taskNames; 3309 info.taskBounds = taskBounds; 3310 info.taskUserIds = taskUserIds; 3311 return info; 3312 } 3313 3314 StackInfo getStackInfoLocked(int stackId) { 3315 ActivityStack stack = getStack(stackId); 3316 if (stack != null) { 3317 return getStackInfoLocked(stack); 3318 } 3319 return null; 3320 } 3321 3322 ArrayList<StackInfo> getAllStackInfosLocked() { 3323 ArrayList<StackInfo> list = new ArrayList<>(); 3324 for (int displayNdx = 0; displayNdx < mActivityDisplays.size(); ++displayNdx) { 3325 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 3326 for (int ndx = stacks.size() - 1; ndx >= 0; --ndx) { 3327 list.add(getStackInfoLocked(stacks.get(ndx))); 3328 } 3329 } 3330 return list; 3331 } 3332 3333 TaskRecord getLockedTaskLocked() { 3334 final int top = mLockTaskModeTasks.size() - 1; 3335 if (top >= 0) { 3336 return mLockTaskModeTasks.get(top); 3337 } 3338 return null; 3339 } 3340 3341 boolean isLockedTask(TaskRecord task) { 3342 return mLockTaskModeTasks.contains(task); 3343 } 3344 3345 boolean isLastLockedTask(TaskRecord task) { 3346 return mLockTaskModeTasks.size() == 1 && mLockTaskModeTasks.contains(task); 3347 } 3348 3349 void removeLockedTaskLocked(final TaskRecord task) { 3350 if (!mLockTaskModeTasks.remove(task)) { 3351 return; 3352 } 3353 if (DEBUG_LOCKTASK) Slog.w(TAG_LOCKTASK, "removeLockedTaskLocked: removed " + task); 3354 if (mLockTaskModeTasks.isEmpty()) { 3355 // Last one. 3356 if (DEBUG_LOCKTASK) Slog.d(TAG_LOCKTASK, "removeLockedTask: task=" + task + 3357 " last task, reverting locktask mode. Callers=" + Debug.getCallers(3)); 3358 final Message lockTaskMsg = Message.obtain(); 3359 lockTaskMsg.arg1 = task.userId; 3360 lockTaskMsg.what = LOCK_TASK_END_MSG; 3361 mHandler.sendMessage(lockTaskMsg); 3362 } 3363 } 3364 3365 void handleNonResizableTaskIfNeeded(TaskRecord task, int preferredStackId, int actualStackId) { 3366 handleNonResizableTaskIfNeeded(task, preferredStackId, actualStackId, 3367 false /* forceNonResizable */); 3368 } 3369 3370 void handleNonResizableTaskIfNeeded( 3371 TaskRecord task, int preferredStackId, int actualStackId, boolean forceNonResizable) { 3372 if ((!isStackDockedInEffect(actualStackId) && preferredStackId != DOCKED_STACK_ID) 3373 || task.isHomeTask()) { 3374 return; 3375 } 3376 3377 if (!task.canGoInDockedStack() || forceNonResizable) { 3378 // Display a warning toast that we tried to put a non-dockable task in the docked stack. 3379 mService.mHandler.sendEmptyMessage(NOTIFY_ACTIVITY_DISMISSING_DOCKED_STACK_MSG); 3380 3381 // Dismiss docked stack. If task appeared to be in docked stack but is not resizable - 3382 // we need to move it to top of fullscreen stack, otherwise it will be covered. 3383 mService.moveTasksToFullscreenStack(DOCKED_STACK_ID, actualStackId == DOCKED_STACK_ID); 3384 } else if (task.mResizeMode == RESIZE_MODE_FORCE_RESIZEABLE) { 3385 String packageName = task.getTopActivity() != null 3386 ? task.getTopActivity().appInfo.packageName : null; 3387 mService.mHandler.obtainMessage(NOTIFY_FORCED_RESIZABLE_MSG, task.taskId, 0, 3388 packageName).sendToTarget(); 3389 } 3390 } 3391 3392 void showLockTaskToast() { 3393 mLockTaskNotify.showToast(mLockTaskModeState); 3394 } 3395 3396 void showLockTaskEscapeMessageLocked(TaskRecord task) { 3397 if (mLockTaskModeTasks.contains(task)) { 3398 mHandler.sendEmptyMessage(SHOW_LOCK_TASK_ESCAPE_MESSAGE_MSG); 3399 } 3400 } 3401 3402 void setLockTaskModeLocked(TaskRecord task, int lockTaskModeState, String reason, 3403 boolean andResume) { 3404 if (task == null) { 3405 // Take out of lock task mode if necessary 3406 final TaskRecord lockedTask = getLockedTaskLocked(); 3407 if (lockedTask != null) { 3408 removeLockedTaskLocked(lockedTask); 3409 if (!mLockTaskModeTasks.isEmpty()) { 3410 // There are locked tasks remaining, can only finish this task, not unlock it. 3411 if (DEBUG_LOCKTASK) Slog.w(TAG_LOCKTASK, 3412 "setLockTaskModeLocked: Tasks remaining, can't unlock"); 3413 lockedTask.performClearTaskLocked(); 3414 resumeFocusedStackTopActivityLocked(); 3415 return; 3416 } 3417 } 3418 if (DEBUG_LOCKTASK) Slog.w(TAG_LOCKTASK, 3419 "setLockTaskModeLocked: No tasks to unlock. Callers=" + Debug.getCallers(4)); 3420 return; 3421 } 3422 3423 // Should have already been checked, but do it again. 3424 if (task.mLockTaskAuth == LOCK_TASK_AUTH_DONT_LOCK) { 3425 if (DEBUG_LOCKTASK) Slog.w(TAG_LOCKTASK, 3426 "setLockTaskModeLocked: Can't lock due to auth"); 3427 return; 3428 } 3429 if (isLockTaskModeViolation(task)) { 3430 Slog.e(TAG_LOCKTASK, "setLockTaskMode: Attempt to start an unauthorized lock task."); 3431 return; 3432 } 3433 3434 if (mLockTaskModeTasks.isEmpty()) { 3435 // First locktask. 3436 final Message lockTaskMsg = Message.obtain(); 3437 lockTaskMsg.obj = task.intent.getComponent().getPackageName(); 3438 lockTaskMsg.arg1 = task.userId; 3439 lockTaskMsg.what = LOCK_TASK_START_MSG; 3440 lockTaskMsg.arg2 = lockTaskModeState; 3441 mHandler.sendMessage(lockTaskMsg); 3442 } 3443 // Add it or move it to the top. 3444 if (DEBUG_LOCKTASK) Slog.w(TAG_LOCKTASK, "setLockTaskModeLocked: Locking to " + task + 3445 " Callers=" + Debug.getCallers(4)); 3446 mLockTaskModeTasks.remove(task); 3447 mLockTaskModeTasks.add(task); 3448 3449 if (task.mLockTaskUid == -1) { 3450 task.mLockTaskUid = task.effectiveUid; 3451 } 3452 3453 if (andResume) { 3454 findTaskToMoveToFrontLocked(task, 0, null, reason, 3455 lockTaskModeState != LOCK_TASK_MODE_NONE); 3456 resumeFocusedStackTopActivityLocked(); 3457 } else if (lockTaskModeState != LOCK_TASK_MODE_NONE) { 3458 handleNonResizableTaskIfNeeded(task, INVALID_STACK_ID, task.stack.mStackId, 3459 true /* forceNonResizable */); 3460 } 3461 } 3462 3463 boolean isLockTaskModeViolation(TaskRecord task) { 3464 return isLockTaskModeViolation(task, false); 3465 } 3466 3467 boolean isLockTaskModeViolation(TaskRecord task, boolean isNewClearTask) { 3468 if (getLockedTaskLocked() == task && !isNewClearTask) { 3469 return false; 3470 } 3471 final int lockTaskAuth = task.mLockTaskAuth; 3472 switch (lockTaskAuth) { 3473 case LOCK_TASK_AUTH_DONT_LOCK: 3474 return !mLockTaskModeTasks.isEmpty(); 3475 case LOCK_TASK_AUTH_LAUNCHABLE_PRIV: 3476 case LOCK_TASK_AUTH_LAUNCHABLE: 3477 case LOCK_TASK_AUTH_WHITELISTED: 3478 return false; 3479 case LOCK_TASK_AUTH_PINNABLE: 3480 // Pinnable tasks can't be launched on top of locktask tasks. 3481 return !mLockTaskModeTasks.isEmpty(); 3482 default: 3483 Slog.w(TAG, "isLockTaskModeViolation: invalid lockTaskAuth value=" + lockTaskAuth); 3484 return true; 3485 } 3486 } 3487 3488 void onLockTaskPackagesUpdatedLocked() { 3489 boolean didSomething = false; 3490 for (int taskNdx = mLockTaskModeTasks.size() - 1; taskNdx >= 0; --taskNdx) { 3491 final TaskRecord lockedTask = mLockTaskModeTasks.get(taskNdx); 3492 final boolean wasWhitelisted = 3493 (lockedTask.mLockTaskAuth == LOCK_TASK_AUTH_LAUNCHABLE) || 3494 (lockedTask.mLockTaskAuth == LOCK_TASK_AUTH_WHITELISTED); 3495 lockedTask.setLockTaskAuth(); 3496 final boolean isWhitelisted = 3497 (lockedTask.mLockTaskAuth == LOCK_TASK_AUTH_LAUNCHABLE) || 3498 (lockedTask.mLockTaskAuth == LOCK_TASK_AUTH_WHITELISTED); 3499 if (wasWhitelisted && !isWhitelisted) { 3500 // Lost whitelisting authorization. End it now. 3501 if (DEBUG_LOCKTASK) Slog.d(TAG_LOCKTASK, "onLockTaskPackagesUpdated: removing " + 3502 lockedTask + " mLockTaskAuth=" + lockedTask.lockTaskAuthToString()); 3503 removeLockedTaskLocked(lockedTask); 3504 lockedTask.performClearTaskLocked(); 3505 didSomething = true; 3506 } 3507 } 3508 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 3509 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 3510 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 3511 final ActivityStack stack = stacks.get(stackNdx); 3512 stack.onLockTaskPackagesUpdatedLocked(); 3513 } 3514 } 3515 final ActivityRecord r = topRunningActivityLocked(); 3516 final TaskRecord task = r != null ? r.task : null; 3517 if (mLockTaskModeTasks.isEmpty() && task != null 3518 && task.mLockTaskAuth == LOCK_TASK_AUTH_LAUNCHABLE) { 3519 // This task must have just been authorized. 3520 if (DEBUG_LOCKTASK) Slog.d(TAG_LOCKTASK, 3521 "onLockTaskPackagesUpdated: starting new locktask task=" + task); 3522 setLockTaskModeLocked(task, ActivityManager.LOCK_TASK_MODE_LOCKED, "package updated", 3523 false); 3524 didSomething = true; 3525 } 3526 if (didSomething) { 3527 resumeFocusedStackTopActivityLocked(); 3528 } 3529 } 3530 3531 int getLockTaskModeState() { 3532 return mLockTaskModeState; 3533 } 3534 3535 void activityRelaunchedLocked(IBinder token) { 3536 mWindowManager.notifyAppRelaunchingFinished(token); 3537 } 3538 3539 void activityRelaunchingLocked(ActivityRecord r) { 3540 mWindowManager.notifyAppRelaunching(r.appToken); 3541 } 3542 3543 void logStackState() { 3544 mActivityMetricsLogger.logWindowState(); 3545 } 3546 3547 void scheduleReportMultiWindowModeChanged(TaskRecord task) { 3548 for (int i = task.mActivities.size() - 1; i >= 0; i--) { 3549 final ActivityRecord r = task.mActivities.get(i); 3550 if (r.app != null && r.app.thread != null) { 3551 mMultiWindowModeChangedActivities.add(r); 3552 } 3553 } 3554 3555 if (!mHandler.hasMessages(REPORT_MULTI_WINDOW_MODE_CHANGED_MSG)) { 3556 mHandler.sendEmptyMessage(REPORT_MULTI_WINDOW_MODE_CHANGED_MSG); 3557 } 3558 } 3559 3560 void scheduleReportPictureInPictureModeChangedIfNeeded(TaskRecord task, ActivityStack prevStack) { 3561 final ActivityStack stack = task.stack; 3562 if (prevStack == null || prevStack == stack 3563 || (prevStack.mStackId != PINNED_STACK_ID && stack.mStackId != PINNED_STACK_ID)) { 3564 return; 3565 } 3566 3567 for (int i = task.mActivities.size() - 1; i >= 0; i--) { 3568 final ActivityRecord r = task.mActivities.get(i); 3569 if (r.app != null && r.app.thread != null) { 3570 mPipModeChangedActivities.add(r); 3571 } 3572 } 3573 3574 if (!mHandler.hasMessages(REPORT_PIP_MODE_CHANGED_MSG)) { 3575 mHandler.sendEmptyMessage(REPORT_PIP_MODE_CHANGED_MSG); 3576 } 3577 } 3578 3579 private final class ActivityStackSupervisorHandler extends Handler { 3580 3581 public ActivityStackSupervisorHandler(Looper looper) { 3582 super(looper); 3583 } 3584 3585 void activityIdleInternal(ActivityRecord r) { 3586 synchronized (mService) { 3587 activityIdleInternalLocked(r != null ? r.appToken : null, true, null); 3588 } 3589 } 3590 3591 @Override 3592 public void handleMessage(Message msg) { 3593 switch (msg.what) { 3594 case REPORT_MULTI_WINDOW_MODE_CHANGED_MSG: { 3595 synchronized (mService) { 3596 for (int i = mMultiWindowModeChangedActivities.size() - 1; i >= 0; i--) { 3597 final ActivityRecord r = mMultiWindowModeChangedActivities.remove(i); 3598 r.scheduleMultiWindowModeChanged(); 3599 } 3600 } 3601 } break; 3602 case REPORT_PIP_MODE_CHANGED_MSG: { 3603 synchronized (mService) { 3604 for (int i = mPipModeChangedActivities.size() - 1; i >= 0; i--) { 3605 final ActivityRecord r = mPipModeChangedActivities.remove(i); 3606 r.schedulePictureInPictureModeChanged(); 3607 } 3608 } 3609 } break; 3610 case IDLE_TIMEOUT_MSG: { 3611 if (DEBUG_IDLE) Slog.d(TAG_IDLE, 3612 "handleMessage: IDLE_TIMEOUT_MSG: r=" + msg.obj); 3613 if (mService.mDidDexOpt) { 3614 mService.mDidDexOpt = false; 3615 Message nmsg = mHandler.obtainMessage(IDLE_TIMEOUT_MSG); 3616 nmsg.obj = msg.obj; 3617 mHandler.sendMessageDelayed(nmsg, IDLE_TIMEOUT); 3618 return; 3619 } 3620 // We don't at this point know if the activity is fullscreen, 3621 // so we need to be conservative and assume it isn't. 3622 activityIdleInternal((ActivityRecord)msg.obj); 3623 } break; 3624 case IDLE_NOW_MSG: { 3625 if (DEBUG_IDLE) Slog.d(TAG_IDLE, "handleMessage: IDLE_NOW_MSG: r=" + msg.obj); 3626 activityIdleInternal((ActivityRecord)msg.obj); 3627 } break; 3628 case RESUME_TOP_ACTIVITY_MSG: { 3629 synchronized (mService) { 3630 resumeFocusedStackTopActivityLocked(); 3631 } 3632 } break; 3633 case SLEEP_TIMEOUT_MSG: { 3634 synchronized (mService) { 3635 if (mService.isSleepingOrShuttingDown()) { 3636 Slog.w(TAG, "Sleep timeout! Sleeping now."); 3637 mSleepTimeout = true; 3638 checkReadyForSleepLocked(); 3639 } 3640 } 3641 } break; 3642 case LAUNCH_TIMEOUT_MSG: { 3643 if (mService.mDidDexOpt) { 3644 mService.mDidDexOpt = false; 3645 mHandler.sendEmptyMessageDelayed(LAUNCH_TIMEOUT_MSG, LAUNCH_TIMEOUT); 3646 return; 3647 } 3648 synchronized (mService) { 3649 if (mLaunchingActivity.isHeld()) { 3650 Slog.w(TAG, "Launch timeout has expired, giving up wake lock!"); 3651 if (VALIDATE_WAKE_LOCK_CALLER 3652 && Binder.getCallingUid() != Process.myUid()) { 3653 throw new IllegalStateException("Calling must be system uid"); 3654 } 3655 mLaunchingActivity.release(); 3656 } 3657 } 3658 } break; 3659 case HANDLE_DISPLAY_ADDED: { 3660 handleDisplayAdded(msg.arg1); 3661 } break; 3662 case HANDLE_DISPLAY_CHANGED: { 3663 handleDisplayChanged(msg.arg1); 3664 } break; 3665 case HANDLE_DISPLAY_REMOVED: { 3666 handleDisplayRemoved(msg.arg1); 3667 } break; 3668 case CONTAINER_CALLBACK_VISIBILITY: { 3669 final ActivityContainer container = (ActivityContainer) msg.obj; 3670 final IActivityContainerCallback callback = container.mCallback; 3671 if (callback != null) { 3672 try { 3673 callback.setVisible(container.asBinder(), msg.arg1 == 1); 3674 } catch (RemoteException e) { 3675 } 3676 } 3677 } break; 3678 case LOCK_TASK_START_MSG: { 3679 // When lock task starts, we disable the status bars. 3680 try { 3681 if (mLockTaskNotify == null) { 3682 mLockTaskNotify = new LockTaskNotify(mService.mContext); 3683 } 3684 mLockTaskNotify.show(true); 3685 mLockTaskModeState = msg.arg2; 3686 if (getStatusBarService() != null) { 3687 int flags = 0; 3688 if (mLockTaskModeState == LOCK_TASK_MODE_LOCKED) { 3689 flags = StatusBarManager.DISABLE_MASK 3690 & (~StatusBarManager.DISABLE_BACK); 3691 } else if (mLockTaskModeState == LOCK_TASK_MODE_PINNED) { 3692 flags = StatusBarManager.DISABLE_MASK 3693 & (~StatusBarManager.DISABLE_BACK) 3694 & (~StatusBarManager.DISABLE_HOME) 3695 & (~StatusBarManager.DISABLE_RECENT); 3696 } 3697 getStatusBarService().disable(flags, mToken, 3698 mService.mContext.getPackageName()); 3699 } 3700 mWindowManager.disableKeyguard(mToken, LOCK_TASK_TAG); 3701 if (getDevicePolicyManager() != null) { 3702 getDevicePolicyManager().notifyLockTaskModeChanged(true, 3703 (String)msg.obj, msg.arg1); 3704 } 3705 } catch (RemoteException ex) { 3706 throw new RuntimeException(ex); 3707 } 3708 } break; 3709 case LOCK_TASK_END_MSG: { 3710 // When lock task ends, we enable the status bars. 3711 try { 3712 if (getStatusBarService() != null) { 3713 getStatusBarService().disable(StatusBarManager.DISABLE_NONE, mToken, 3714 mService.mContext.getPackageName()); 3715 } 3716 mWindowManager.reenableKeyguard(mToken); 3717 if (getDevicePolicyManager() != null) { 3718 getDevicePolicyManager().notifyLockTaskModeChanged(false, null, 3719 msg.arg1); 3720 } 3721 if (mLockTaskNotify == null) { 3722 mLockTaskNotify = new LockTaskNotify(mService.mContext); 3723 } 3724 mLockTaskNotify.show(false); 3725 try { 3726 boolean shouldLockKeyguard = Settings.Secure.getInt( 3727 mService.mContext.getContentResolver(), 3728 Settings.Secure.LOCK_TO_APP_EXIT_LOCKED) != 0; 3729 if (mLockTaskModeState == LOCK_TASK_MODE_PINNED && shouldLockKeyguard) { 3730 mWindowManager.lockNow(null); 3731 mWindowManager.dismissKeyguard(); 3732 new LockPatternUtils(mService.mContext) 3733 .requireCredentialEntry(UserHandle.USER_ALL); 3734 } 3735 } catch (SettingNotFoundException e) { 3736 // No setting, don't lock. 3737 } 3738 } catch (RemoteException ex) { 3739 throw new RuntimeException(ex); 3740 } finally { 3741 mLockTaskModeState = LOCK_TASK_MODE_NONE; 3742 } 3743 } break; 3744 case SHOW_LOCK_TASK_ESCAPE_MESSAGE_MSG: { 3745 if (mLockTaskNotify == null) { 3746 mLockTaskNotify = new LockTaskNotify(mService.mContext); 3747 } 3748 mLockTaskNotify.showToast(LOCK_TASK_MODE_PINNED); 3749 } break; 3750 case CONTAINER_CALLBACK_TASK_LIST_EMPTY: { 3751 final ActivityContainer container = (ActivityContainer) msg.obj; 3752 final IActivityContainerCallback callback = container.mCallback; 3753 if (callback != null) { 3754 try { 3755 callback.onAllActivitiesComplete(container.asBinder()); 3756 } catch (RemoteException e) { 3757 } 3758 } 3759 } break; 3760 case LAUNCH_TASK_BEHIND_COMPLETE: { 3761 synchronized (mService) { 3762 ActivityRecord r = ActivityRecord.forTokenLocked((IBinder) msg.obj); 3763 if (r != null) { 3764 handleLaunchTaskBehindCompleteLocked(r); 3765 } 3766 } 3767 } break; 3768 3769 } 3770 } 3771 } 3772 3773 class ActivityContainer extends android.app.IActivityContainer.Stub { 3774 final static int FORCE_NEW_TASK_FLAGS = FLAG_ACTIVITY_NEW_TASK | 3775 FLAG_ACTIVITY_MULTIPLE_TASK | Intent.FLAG_ACTIVITY_NO_ANIMATION; 3776 final int mStackId; 3777 IActivityContainerCallback mCallback = null; 3778 final ActivityStack mStack; 3779 ActivityRecord mParentActivity = null; 3780 String mIdString; 3781 3782 boolean mVisible = true; 3783 3784 /** Display this ActivityStack is currently on. Null if not attached to a Display. */ 3785 ActivityDisplay mActivityDisplay; 3786 3787 final static int CONTAINER_STATE_HAS_SURFACE = 0; 3788 final static int CONTAINER_STATE_NO_SURFACE = 1; 3789 final static int CONTAINER_STATE_FINISHING = 2; 3790 int mContainerState = CONTAINER_STATE_HAS_SURFACE; 3791 3792 ActivityContainer(int stackId) { 3793 synchronized (mService) { 3794 mStackId = stackId; 3795 mStack = new ActivityStack(this, mRecentTasks); 3796 mIdString = "ActivtyContainer{" + mStackId + "}"; 3797 if (DEBUG_STACK) Slog.d(TAG_STACK, "Creating " + this); 3798 } 3799 } 3800 3801 void attachToDisplayLocked(ActivityDisplay activityDisplay, boolean onTop) { 3802 if (DEBUG_STACK) Slog.d(TAG_STACK, "attachToDisplayLocked: " + this 3803 + " to display=" + activityDisplay + " onTop=" + onTop); 3804 mActivityDisplay = activityDisplay; 3805 mStack.attachDisplay(activityDisplay, onTop); 3806 activityDisplay.attachActivities(mStack, onTop); 3807 } 3808 3809 @Override 3810 public void attachToDisplay(int displayId) { 3811 synchronized (mService) { 3812 ActivityDisplay activityDisplay = mActivityDisplays.get(displayId); 3813 if (activityDisplay == null) { 3814 return; 3815 } 3816 attachToDisplayLocked(activityDisplay, true); 3817 } 3818 } 3819 3820 @Override 3821 public int getDisplayId() { 3822 synchronized (mService) { 3823 if (mActivityDisplay != null) { 3824 return mActivityDisplay.mDisplayId; 3825 } 3826 } 3827 return -1; 3828 } 3829 3830 @Override 3831 public int getStackId() { 3832 synchronized (mService) { 3833 return mStackId; 3834 } 3835 } 3836 3837 @Override 3838 public boolean injectEvent(InputEvent event) { 3839 final long origId = Binder.clearCallingIdentity(); 3840 try { 3841 synchronized (mService) { 3842 if (mActivityDisplay != null) { 3843 return mInputManagerInternal.injectInputEvent(event, 3844 mActivityDisplay.mDisplayId, 3845 InputManager.INJECT_INPUT_EVENT_MODE_ASYNC); 3846 } 3847 } 3848 return false; 3849 } finally { 3850 Binder.restoreCallingIdentity(origId); 3851 } 3852 } 3853 3854 @Override 3855 public void release() { 3856 synchronized (mService) { 3857 if (mContainerState == CONTAINER_STATE_FINISHING) { 3858 return; 3859 } 3860 mContainerState = CONTAINER_STATE_FINISHING; 3861 3862 long origId = Binder.clearCallingIdentity(); 3863 try { 3864 mStack.finishAllActivitiesLocked(false); 3865 mService.mActivityStarter.removePendingActivityLaunchesLocked(mStack); 3866 } finally { 3867 Binder.restoreCallingIdentity(origId); 3868 } 3869 } 3870 } 3871 3872 protected void detachLocked() { 3873 if (DEBUG_STACK) Slog.d(TAG_STACK, "detachLocked: " + this + " from display=" 3874 + mActivityDisplay + " Callers=" + Debug.getCallers(2)); 3875 if (mActivityDisplay != null) { 3876 mActivityDisplay.detachActivitiesLocked(mStack); 3877 mActivityDisplay = null; 3878 mStack.detachDisplay(); 3879 } 3880 } 3881 3882 @Override 3883 public final int startActivity(Intent intent) { 3884 return mService.startActivity(intent, this); 3885 } 3886 3887 @Override 3888 public final int startActivityIntentSender(IIntentSender intentSender) 3889 throws TransactionTooLargeException { 3890 mService.enforceNotIsolatedCaller("ActivityContainer.startActivityIntentSender"); 3891 3892 if (!(intentSender instanceof PendingIntentRecord)) { 3893 throw new IllegalArgumentException("Bad PendingIntent object"); 3894 } 3895 3896 final int userId = mService.mUserController.handleIncomingUser(Binder.getCallingPid(), 3897 Binder.getCallingUid(), mCurrentUser, false, 3898 ActivityManagerService.ALLOW_FULL_ONLY, "ActivityContainer", null); 3899 3900 final PendingIntentRecord pendingIntent = (PendingIntentRecord) intentSender; 3901 checkEmbeddedAllowedInner(userId, pendingIntent.key.requestIntent, 3902 pendingIntent.key.requestResolvedType); 3903 3904 return pendingIntent.sendInner(0, null, null, null, null, null, null, 0, 3905 FORCE_NEW_TASK_FLAGS, FORCE_NEW_TASK_FLAGS, null, this); 3906 } 3907 3908 void checkEmbeddedAllowedInner(int userId, Intent intent, String resolvedType) { 3909 ActivityInfo aInfo = resolveActivity(intent, resolvedType, 0, null, userId); 3910 if (aInfo != null && (aInfo.flags & ActivityInfo.FLAG_ALLOW_EMBEDDED) == 0) { 3911 throw new SecurityException( 3912 "Attempt to embed activity that has not set allowEmbedded=\"true\""); 3913 } 3914 } 3915 3916 @Override 3917 public IBinder asBinder() { 3918 return this; 3919 } 3920 3921 @Override 3922 public void setSurface(Surface surface, int width, int height, int density) { 3923 mService.enforceNotIsolatedCaller("ActivityContainer.attachToSurface"); 3924 } 3925 3926 ActivityStackSupervisor getOuter() { 3927 return ActivityStackSupervisor.this; 3928 } 3929 3930 boolean isAttachedLocked() { 3931 return mActivityDisplay != null; 3932 } 3933 3934 // TODO: Make sure every change to ActivityRecord.visible results in a call to this. 3935 void setVisible(boolean visible) { 3936 if (mVisible != visible) { 3937 mVisible = visible; 3938 if (mCallback != null) { 3939 mHandler.obtainMessage(CONTAINER_CALLBACK_VISIBILITY, visible ? 1 : 0, 3940 0 /* unused */, this).sendToTarget(); 3941 } 3942 } 3943 } 3944 3945 void setDrawn() { 3946 } 3947 3948 // You can always start a new task on a regular ActivityStack. 3949 boolean isEligibleForNewTasks() { 3950 return true; 3951 } 3952 3953 void onTaskListEmptyLocked() { 3954 detachLocked(); 3955 deleteActivityContainer(this); 3956 mHandler.obtainMessage(CONTAINER_CALLBACK_TASK_LIST_EMPTY, this).sendToTarget(); 3957 } 3958 3959 @Override 3960 public String toString() { 3961 return mIdString + (mActivityDisplay == null ? "N" : "A"); 3962 } 3963 } 3964 3965 private class VirtualActivityContainer extends ActivityContainer { 3966 Surface mSurface; 3967 boolean mDrawn = false; 3968 3969 VirtualActivityContainer(ActivityRecord parent, IActivityContainerCallback callback) { 3970 super(getNextStackId()); 3971 mParentActivity = parent; 3972 mCallback = callback; 3973 mContainerState = CONTAINER_STATE_NO_SURFACE; 3974 mIdString = "VirtualActivityContainer{" + mStackId + ", parent=" + mParentActivity + "}"; 3975 } 3976 3977 @Override 3978 public void setSurface(Surface surface, int width, int height, int density) { 3979 super.setSurface(surface, width, height, density); 3980 3981 synchronized (mService) { 3982 final long origId = Binder.clearCallingIdentity(); 3983 try { 3984 setSurfaceLocked(surface, width, height, density); 3985 } finally { 3986 Binder.restoreCallingIdentity(origId); 3987 } 3988 } 3989 } 3990 3991 private void setSurfaceLocked(Surface surface, int width, int height, int density) { 3992 if (mContainerState == CONTAINER_STATE_FINISHING) { 3993 return; 3994 } 3995 VirtualActivityDisplay virtualActivityDisplay = 3996 (VirtualActivityDisplay) mActivityDisplay; 3997 if (virtualActivityDisplay == null) { 3998 virtualActivityDisplay = 3999 new VirtualActivityDisplay(width, height, density); 4000 mActivityDisplay = virtualActivityDisplay; 4001 mActivityDisplays.put(virtualActivityDisplay.mDisplayId, virtualActivityDisplay); 4002 attachToDisplayLocked(virtualActivityDisplay, true); 4003 } 4004 4005 if (mSurface != null) { 4006 mSurface.release(); 4007 } 4008 4009 mSurface = surface; 4010 if (surface != null) { 4011 resumeFocusedStackTopActivityLocked(); 4012 } else { 4013 mContainerState = CONTAINER_STATE_NO_SURFACE; 4014 ((VirtualActivityDisplay) mActivityDisplay).setSurface(null); 4015 if (mStack.mPausingActivity == null && mStack.mResumedActivity != null) { 4016 mStack.startPausingLocked(false, true, false, false); 4017 } 4018 } 4019 4020 setSurfaceIfReadyLocked(); 4021 4022 if (DEBUG_STACK) Slog.d(TAG_STACK, 4023 "setSurface: " + this + " to display=" + virtualActivityDisplay); 4024 } 4025 4026 @Override 4027 boolean isAttachedLocked() { 4028 return mSurface != null && super.isAttachedLocked(); 4029 } 4030 4031 @Override 4032 void setDrawn() { 4033 synchronized (mService) { 4034 mDrawn = true; 4035 setSurfaceIfReadyLocked(); 4036 } 4037 } 4038 4039 // Never start a new task on an ActivityView if it isn't explicitly specified. 4040 @Override 4041 boolean isEligibleForNewTasks() { 4042 return false; 4043 } 4044 4045 private void setSurfaceIfReadyLocked() { 4046 if (DEBUG_STACK) Slog.v(TAG_STACK, "setSurfaceIfReadyLocked: mDrawn=" + mDrawn + 4047 " mContainerState=" + mContainerState + " mSurface=" + mSurface); 4048 if (mDrawn && mSurface != null && mContainerState == CONTAINER_STATE_NO_SURFACE) { 4049 ((VirtualActivityDisplay) mActivityDisplay).setSurface(mSurface); 4050 mContainerState = CONTAINER_STATE_HAS_SURFACE; 4051 } 4052 } 4053 } 4054 4055 /** Exactly one of these classes per Display in the system. Capable of holding zero or more 4056 * attached {@link ActivityStack}s */ 4057 class ActivityDisplay { 4058 /** Actual Display this object tracks. */ 4059 int mDisplayId; 4060 Display mDisplay; 4061 DisplayInfo mDisplayInfo = new DisplayInfo(); 4062 4063 /** All of the stacks on this display. Order matters, topmost stack is in front of all other 4064 * stacks, bottommost behind. Accessed directly by ActivityManager package classes */ 4065 final ArrayList<ActivityStack> mStacks = new ArrayList<>(); 4066 4067 ActivityRecord mVisibleBehindActivity; 4068 4069 ActivityDisplay() { 4070 } 4071 4072 // After instantiation, check that mDisplay is not null before using this. The alternative 4073 // is for this to throw an exception if mDisplayManager.getDisplay() returns null. 4074 ActivityDisplay(int displayId) { 4075 final Display display = mDisplayManager.getDisplay(displayId); 4076 if (display == null) { 4077 return; 4078 } 4079 init(display); 4080 } 4081 4082 void init(Display display) { 4083 mDisplay = display; 4084 mDisplayId = display.getDisplayId(); 4085 mDisplay.getDisplayInfo(mDisplayInfo); 4086 } 4087 4088 void attachActivities(ActivityStack stack, boolean onTop) { 4089 if (DEBUG_STACK) Slog.v(TAG_STACK, 4090 "attachActivities: attaching " + stack + " to displayId=" + mDisplayId 4091 + " onTop=" + onTop); 4092 if (onTop) { 4093 mStacks.add(stack); 4094 } else { 4095 mStacks.add(0, stack); 4096 } 4097 } 4098 4099 void detachActivitiesLocked(ActivityStack stack) { 4100 if (DEBUG_STACK) Slog.v(TAG_STACK, "detachActivitiesLocked: detaching " + stack 4101 + " from displayId=" + mDisplayId); 4102 mStacks.remove(stack); 4103 } 4104 4105 void setVisibleBehindActivity(ActivityRecord r) { 4106 mVisibleBehindActivity = r; 4107 } 4108 4109 boolean hasVisibleBehindActivity() { 4110 return mVisibleBehindActivity != null; 4111 } 4112 4113 @Override 4114 public String toString() { 4115 return "ActivityDisplay={" + mDisplayId + " numStacks=" + mStacks.size() + "}"; 4116 } 4117 } 4118 4119 class VirtualActivityDisplay extends ActivityDisplay { 4120 VirtualDisplay mVirtualDisplay; 4121 4122 VirtualActivityDisplay(int width, int height, int density) { 4123 DisplayManagerGlobal dm = DisplayManagerGlobal.getInstance(); 4124 mVirtualDisplay = dm.createVirtualDisplay(mService.mContext, null, 4125 VIRTUAL_DISPLAY_BASE_NAME, width, height, density, null, 4126 DisplayManager.VIRTUAL_DISPLAY_FLAG_PUBLIC | 4127 DisplayManager.VIRTUAL_DISPLAY_FLAG_OWN_CONTENT_ONLY, null, null); 4128 4129 init(mVirtualDisplay.getDisplay()); 4130 4131 mWindowManager.handleDisplayAdded(mDisplayId); 4132 } 4133 4134 void setSurface(Surface surface) { 4135 if (mVirtualDisplay != null) { 4136 mVirtualDisplay.setSurface(surface); 4137 } 4138 } 4139 4140 @Override 4141 void detachActivitiesLocked(ActivityStack stack) { 4142 super.detachActivitiesLocked(stack); 4143 if (mVirtualDisplay != null) { 4144 mVirtualDisplay.release(); 4145 mVirtualDisplay = null; 4146 } 4147 } 4148 4149 @Override 4150 public String toString() { 4151 return "VirtualActivityDisplay={" + mDisplayId + "}"; 4152 } 4153 } 4154 4155 /** 4156 * Adjust bounds to stay within stack bounds. 4157 * 4158 * Since bounds might be outside of stack bounds, this method tries to move the bounds in a way 4159 * that keep them unchanged, but be contained within the stack bounds. 4160 * 4161 * @param bounds Bounds to be adjusted. 4162 * @param stackBounds Bounds within which the other bounds should remain. 4163 */ 4164 private static void fitWithinBounds(Rect bounds, Rect stackBounds) { 4165 if (stackBounds == null || stackBounds.contains(bounds)) { 4166 return; 4167 } 4168 4169 if (bounds.left < stackBounds.left || bounds.right > stackBounds.right) { 4170 final int maxRight = stackBounds.right 4171 - (stackBounds.width() / FIT_WITHIN_BOUNDS_DIVIDER); 4172 int horizontalDiff = stackBounds.left - bounds.left; 4173 if ((horizontalDiff < 0 && bounds.left >= maxRight) 4174 || (bounds.left + horizontalDiff >= maxRight)) { 4175 horizontalDiff = maxRight - bounds.left; 4176 } 4177 bounds.left += horizontalDiff; 4178 bounds.right += horizontalDiff; 4179 } 4180 4181 if (bounds.top < stackBounds.top || bounds.bottom > stackBounds.bottom) { 4182 final int maxBottom = stackBounds.bottom 4183 - (stackBounds.height() / FIT_WITHIN_BOUNDS_DIVIDER); 4184 int verticalDiff = stackBounds.top - bounds.top; 4185 if ((verticalDiff < 0 && bounds.top >= maxBottom) 4186 || (bounds.top + verticalDiff >= maxBottom)) { 4187 verticalDiff = maxBottom - bounds.top; 4188 } 4189 bounds.top += verticalDiff; 4190 bounds.bottom += verticalDiff; 4191 } 4192 } 4193 4194 ActivityStack findStackBehind(ActivityStack stack) { 4195 // TODO(multi-display): We are only looking for stacks on the default display. 4196 final ActivityDisplay display = mActivityDisplays.get(Display.DEFAULT_DISPLAY); 4197 if (display == null) { 4198 return null; 4199 } 4200 final ArrayList<ActivityStack> stacks = display.mStacks; 4201 for (int i = stacks.size() - 1; i >= 0; i--) { 4202 if (stacks.get(i) == stack && i > 0) { 4203 return stacks.get(i - 1); 4204 } 4205 } 4206 throw new IllegalStateException("Failed to find a stack behind stack=" + stack 4207 + " in=" + stacks); 4208 } 4209 4210 /** 4211 * Puts a task into resizing mode during the next app transition. 4212 * 4213 * @param taskId the id of the task to put into resizing mode 4214 */ 4215 private void setResizingDuringAnimation(int taskId) { 4216 mResizingTasksDuringAnimation.add(taskId); 4217 mWindowManager.setTaskDockedResizing(taskId, true); 4218 } 4219 4220 final int startActivityFromRecentsInner(int taskId, Bundle bOptions) { 4221 final TaskRecord task; 4222 final int callingUid; 4223 final String callingPackage; 4224 final Intent intent; 4225 final int userId; 4226 final ActivityOptions activityOptions = (bOptions != null) 4227 ? new ActivityOptions(bOptions) : null; 4228 final int launchStackId = (activityOptions != null) 4229 ? activityOptions.getLaunchStackId() : INVALID_STACK_ID; 4230 4231 if (launchStackId == HOME_STACK_ID) { 4232 throw new IllegalArgumentException("startActivityFromRecentsInner: Task " 4233 + taskId + " can't be launch in the home stack."); 4234 } 4235 task = anyTaskForIdLocked(taskId, RESTORE_FROM_RECENTS, launchStackId); 4236 if (task == null) { 4237 throw new IllegalArgumentException( 4238 "startActivityFromRecentsInner: Task " + taskId + " not found."); 4239 } 4240 4241 if (launchStackId != INVALID_STACK_ID) { 4242 if (launchStackId == DOCKED_STACK_ID) { 4243 mWindowManager.setDockedStackCreateState( 4244 activityOptions.getDockCreateMode(), null /* initialBounds */); 4245 4246 // Defer updating the stack in which recents is until the app transition is done, to 4247 // not run into issues where we still need to draw the task in recents but the 4248 // docked stack is already created. 4249 deferUpdateBounds(HOME_STACK_ID); 4250 mWindowManager.prepareAppTransition(TRANSIT_DOCK_TASK_FROM_RECENTS, false); 4251 } 4252 if (task.stack.mStackId != launchStackId) { 4253 moveTaskToStackLocked( 4254 taskId, launchStackId, ON_TOP, FORCE_FOCUS, "startActivityFromRecents", 4255 ANIMATE); 4256 } 4257 } 4258 4259 // If the user must confirm credentials (e.g. when first launching a work app and the 4260 // Work Challenge is present) let startActivityInPackage handle the intercepting. 4261 if (!mService.mUserController.shouldConfirmCredentials(task.userId) 4262 && task.getRootActivity() != null) { 4263 mActivityMetricsLogger.notifyActivityLaunching(); 4264 mService.moveTaskToFrontLocked(task.taskId, 0, bOptions); 4265 4266 // If we are launching the task in the docked stack, put it into resizing mode so 4267 // the window renders full-screen with the background filling the void. Also only 4268 // call this at the end to make sure that tasks exists on the window manager side. 4269 if (launchStackId == DOCKED_STACK_ID) { 4270 setResizingDuringAnimation(taskId); 4271 } 4272 return ActivityManager.START_TASK_TO_FRONT; 4273 } 4274 callingUid = task.mCallingUid; 4275 callingPackage = task.mCallingPackage; 4276 intent = task.intent; 4277 intent.addFlags(Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY); 4278 userId = task.userId; 4279 int result = mService.startActivityInPackage(callingUid, callingPackage, intent, null, 4280 null, null, 0, 0, bOptions, userId, null, task); 4281 if (launchStackId == DOCKED_STACK_ID) { 4282 setResizingDuringAnimation(task.taskId); 4283 } 4284 return result; 4285 } 4286 4287 /** 4288 * @return a list of activities which are the top ones in each visible stack. The first 4289 * entry will be the focused activity. 4290 */ 4291 public List<IBinder> getTopVisibleActivities() { 4292 final ActivityDisplay display = mActivityDisplays.get(Display.DEFAULT_DISPLAY); 4293 if (display == null) { 4294 return Collections.EMPTY_LIST; 4295 } 4296 ArrayList<IBinder> topActivityTokens = new ArrayList<>(); 4297 final ArrayList<ActivityStack> stacks = display.mStacks; 4298 for (int i = stacks.size() - 1; i >= 0; i--) { 4299 ActivityStack stack = stacks.get(i); 4300 if (stack.getStackVisibilityLocked(null) == ActivityStack.STACK_VISIBLE) { 4301 ActivityRecord top = stack.topActivity(); 4302 if (top != null) { 4303 if (stack == mFocusedStack) { 4304 topActivityTokens.add(0, top.appToken); 4305 } else { 4306 topActivityTokens.add(top.appToken); 4307 } 4308 } 4309 } 4310 } 4311 return topActivityTokens; 4312 } 4313} 4314