ActivityStackSupervisor.java revision 7622a0f8e4198adf0aae5d4e167ee132b34f4cdb
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 static android.Manifest.permission.START_ANY_ACTIVITY; 20import static android.content.Intent.FLAG_ACTIVITY_NEW_TASK; 21import static android.content.Intent.FLAG_ACTIVITY_TASK_ON_HOME; 22import static android.content.pm.PackageManager.PERMISSION_GRANTED; 23import static com.android.server.am.ActivityManagerService.localLOGV; 24import static com.android.server.am.ActivityManagerService.DEBUG_CONFIGURATION; 25import static com.android.server.am.ActivityManagerService.DEBUG_FOCUS; 26import static com.android.server.am.ActivityManagerService.DEBUG_PAUSE; 27import static com.android.server.am.ActivityManagerService.DEBUG_RESULTS; 28import static com.android.server.am.ActivityManagerService.DEBUG_STACK; 29import static com.android.server.am.ActivityManagerService.DEBUG_SWITCH; 30import static com.android.server.am.ActivityManagerService.DEBUG_TASKS; 31import static com.android.server.am.ActivityManagerService.DEBUG_USER_LEAVING; 32import static com.android.server.am.ActivityManagerService.FIRST_SUPERVISOR_STACK_MSG; 33import static com.android.server.am.ActivityManagerService.TAG; 34import static com.android.server.am.ActivityRecord.HOME_ACTIVITY_TYPE; 35import static com.android.server.am.ActivityRecord.RECENTS_ACTIVITY_TYPE; 36import static com.android.server.am.ActivityRecord.APPLICATION_ACTIVITY_TYPE; 37 38import android.app.Activity; 39import android.app.ActivityManager; 40import android.app.ActivityManager.StackInfo; 41import android.app.ActivityOptions; 42import android.app.AppGlobals; 43import android.app.IActivityContainer; 44import android.app.IActivityContainerCallback; 45import android.app.IActivityManager; 46import android.app.IApplicationThread; 47import android.app.PendingIntent; 48import android.app.ProfilerInfo; 49import android.app.ActivityManager.RunningTaskInfo; 50import android.app.IActivityManager.WaitResult; 51import android.app.ResultInfo; 52import android.app.StatusBarManager; 53import android.app.admin.IDevicePolicyManager; 54import android.content.ComponentName; 55import android.content.Context; 56import android.content.IIntentSender; 57import android.content.Intent; 58import android.content.IntentSender; 59import android.content.pm.ActivityInfo; 60import android.content.pm.ApplicationInfo; 61import android.content.pm.PackageManager; 62import android.content.pm.ResolveInfo; 63import android.content.res.Configuration; 64import android.graphics.Point; 65import android.hardware.display.DisplayManager; 66import android.hardware.display.DisplayManager.DisplayListener; 67import android.hardware.display.DisplayManagerGlobal; 68import android.hardware.display.VirtualDisplay; 69import android.hardware.input.InputManager; 70import android.hardware.input.InputManagerInternal; 71import android.os.Binder; 72import android.os.Bundle; 73import android.os.Debug; 74import android.os.Handler; 75import android.os.IBinder; 76import android.os.Looper; 77import android.os.Message; 78import android.os.ParcelFileDescriptor; 79import android.os.PowerManager; 80import android.os.Process; 81import android.os.RemoteException; 82import android.os.ServiceManager; 83import android.os.SystemClock; 84import android.os.UserHandle; 85import android.provider.Settings; 86import android.provider.Settings.SettingNotFoundException; 87import android.service.voice.IVoiceInteractionSession; 88import android.util.ArraySet; 89import android.util.EventLog; 90import android.util.Slog; 91import android.util.SparseArray; 92 93import android.util.SparseIntArray; 94import android.view.Display; 95import android.view.DisplayInfo; 96import android.view.InputEvent; 97import android.view.Surface; 98import com.android.internal.app.HeavyWeightSwitcherActivity; 99import com.android.internal.app.IVoiceInteractor; 100import com.android.internal.os.TransferPipe; 101import com.android.internal.statusbar.IStatusBarService; 102import com.android.internal.widget.LockPatternUtils; 103import com.android.server.LocalServices; 104import com.android.server.am.ActivityStack.ActivityState; 105import com.android.server.wm.WindowManagerService; 106 107 108import java.io.FileDescriptor; 109import java.io.IOException; 110import java.io.PrintWriter; 111import java.util.ArrayList; 112import java.util.List; 113 114public final class ActivityStackSupervisor implements DisplayListener { 115 static final boolean DEBUG = ActivityManagerService.DEBUG || false; 116 static final boolean DEBUG_ADD_REMOVE = DEBUG || false; 117 static final boolean DEBUG_APP = DEBUG || false; 118 static final boolean DEBUG_CONTAINERS = DEBUG || false; 119 static final boolean DEBUG_IDLE = DEBUG || false; 120 static final boolean DEBUG_RELEASE = DEBUG || false; 121 static final boolean DEBUG_SAVED_STATE = DEBUG || false; 122 static final boolean DEBUG_SCREENSHOTS = DEBUG || false; 123 static final boolean DEBUG_STATES = DEBUG || false; 124 static final boolean DEBUG_VISIBLE_BEHIND = DEBUG || false; 125 126 public static final int HOME_STACK_ID = 0; 127 128 /** How long we wait until giving up on the last activity telling us it is idle. */ 129 static final int IDLE_TIMEOUT = 10*1000; 130 131 /** How long we can hold the sleep wake lock before giving up. */ 132 static final int SLEEP_TIMEOUT = 5*1000; 133 134 // How long we can hold the launch wake lock before giving up. 135 static final int LAUNCH_TIMEOUT = 10*1000; 136 137 static final int IDLE_TIMEOUT_MSG = FIRST_SUPERVISOR_STACK_MSG; 138 static final int IDLE_NOW_MSG = FIRST_SUPERVISOR_STACK_MSG + 1; 139 static final int RESUME_TOP_ACTIVITY_MSG = FIRST_SUPERVISOR_STACK_MSG + 2; 140 static final int SLEEP_TIMEOUT_MSG = FIRST_SUPERVISOR_STACK_MSG + 3; 141 static final int LAUNCH_TIMEOUT_MSG = FIRST_SUPERVISOR_STACK_MSG + 4; 142 static final int HANDLE_DISPLAY_ADDED = FIRST_SUPERVISOR_STACK_MSG + 5; 143 static final int HANDLE_DISPLAY_CHANGED = FIRST_SUPERVISOR_STACK_MSG + 6; 144 static final int HANDLE_DISPLAY_REMOVED = FIRST_SUPERVISOR_STACK_MSG + 7; 145 static final int CONTAINER_CALLBACK_VISIBILITY = FIRST_SUPERVISOR_STACK_MSG + 8; 146 static final int LOCK_TASK_START_MSG = FIRST_SUPERVISOR_STACK_MSG + 9; 147 static final int LOCK_TASK_END_MSG = FIRST_SUPERVISOR_STACK_MSG + 10; 148 static final int CONTAINER_CALLBACK_TASK_LIST_EMPTY = FIRST_SUPERVISOR_STACK_MSG + 11; 149 static final int CONTAINER_TASK_LIST_EMPTY_TIMEOUT = FIRST_SUPERVISOR_STACK_MSG + 12; 150 static final int LAUNCH_TASK_BEHIND_COMPLETE = FIRST_SUPERVISOR_STACK_MSG + 13; 151 152 private final static String VIRTUAL_DISPLAY_BASE_NAME = "ActivityViewVirtualDisplay"; 153 154 private static final String LOCK_TASK_TAG = "Lock-to-App"; 155 156 /** Status Bar Service **/ 157 private IBinder mToken = new Binder(); 158 private IStatusBarService mStatusBarService; 159 private IDevicePolicyManager mDevicePolicyManager; 160 161 // For debugging to make sure the caller when acquiring/releasing our 162 // wake lock is the system process. 163 static final boolean VALIDATE_WAKE_LOCK_CALLER = false; 164 165 final ActivityManagerService mService; 166 167 final ActivityStackSupervisorHandler mHandler; 168 169 /** Short cut */ 170 WindowManagerService mWindowManager; 171 DisplayManager mDisplayManager; 172 173 /** Identifier counter for all ActivityStacks */ 174 private int mLastStackId = HOME_STACK_ID; 175 176 /** Task identifier that activities are currently being started in. Incremented each time a 177 * new task is created. */ 178 private int mCurTaskId = 0; 179 180 /** The current user */ 181 private int mCurrentUser; 182 183 /** The stack containing the launcher app. Assumed to always be attached to 184 * Display.DEFAULT_DISPLAY. */ 185 private ActivityStack mHomeStack; 186 187 /** The stack currently receiving input or launching the next activity. */ 188 private ActivityStack mFocusedStack; 189 190 /** If this is the same as mFocusedStack then the activity on the top of the focused stack has 191 * been resumed. If stacks are changing position this will hold the old stack until the new 192 * stack becomes resumed after which it will be set to mFocusedStack. */ 193 private ActivityStack mLastFocusedStack; 194 195 /** List of activities that are waiting for a new activity to become visible before completing 196 * whatever operation they are supposed to do. */ 197 final ArrayList<ActivityRecord> mWaitingVisibleActivities = new ArrayList<ActivityRecord>(); 198 199 /** List of processes waiting to find out about the next visible activity. */ 200 final ArrayList<IActivityManager.WaitResult> mWaitingActivityVisible = 201 new ArrayList<IActivityManager.WaitResult>(); 202 203 /** List of processes waiting to find out about the next launched activity. */ 204 final ArrayList<IActivityManager.WaitResult> mWaitingActivityLaunched = 205 new ArrayList<IActivityManager.WaitResult>(); 206 207 /** List of activities that are ready to be stopped, but waiting for the next activity to 208 * settle down before doing so. */ 209 final ArrayList<ActivityRecord> mStoppingActivities = new ArrayList<ActivityRecord>(); 210 211 /** List of activities that are ready to be finished, but waiting for the previous activity to 212 * settle down before doing so. It contains ActivityRecord objects. */ 213 final ArrayList<ActivityRecord> mFinishingActivities = new ArrayList<ActivityRecord>(); 214 215 /** List of activities that are in the process of going to sleep. */ 216 final ArrayList<ActivityRecord> mGoingToSleepActivities = new ArrayList<ActivityRecord>(); 217 218 /** Used on user changes */ 219 final ArrayList<UserStartedState> mStartingUsers = new ArrayList<UserStartedState>(); 220 221 /** Used to queue up any background users being started */ 222 final ArrayList<UserStartedState> mStartingBackgroundUsers = new ArrayList<UserStartedState>(); 223 224 /** Set to indicate whether to issue an onUserLeaving callback when a newly launched activity 225 * is being brought in front of us. */ 226 boolean mUserLeaving = false; 227 228 /** Set when we have taken too long waiting to go to sleep. */ 229 boolean mSleepTimeout = false; 230 231 /** Indicates if we are running on a Leanback-only (TV) device. Only initialized after 232 * setWindowManager is called. **/ 233 private boolean mLeanbackOnlyDevice; 234 235 /** 236 * We don't want to allow the device to go to sleep while in the process 237 * of launching an activity. This is primarily to allow alarm intent 238 * receivers to launch an activity and get that to run before the device 239 * goes back to sleep. 240 */ 241 PowerManager.WakeLock mLaunchingActivity; 242 243 /** 244 * Set when the system is going to sleep, until we have 245 * successfully paused the current activity and released our wake lock. 246 * At that point the system is allowed to actually sleep. 247 */ 248 PowerManager.WakeLock mGoingToSleep; 249 250 /** Stack id of the front stack when user switched, indexed by userId. */ 251 SparseIntArray mUserStackInFront = new SparseIntArray(2); 252 253 // TODO: Add listener for removal of references. 254 /** Mapping from (ActivityStack/TaskStack).mStackId to their current state */ 255 private SparseArray<ActivityContainer> mActivityContainers = new SparseArray<ActivityContainer>(); 256 257 /** Mapping from displayId to display current state */ 258 private final SparseArray<ActivityDisplay> mActivityDisplays = 259 new SparseArray<ActivityDisplay>(); 260 261 InputManagerInternal mInputManagerInternal; 262 263 /** If non-null then the task specified remains in front and no other tasks may be started 264 * until the task exits or #stopLockTaskMode() is called. */ 265 TaskRecord mLockTaskModeTask; 266 /** Whether lock task has been entered by an authorized app and cannot 267 * be exited. */ 268 private boolean mLockTaskIsLocked; 269 /** 270 * Notifies the user when entering/exiting lock-task. 271 */ 272 private LockTaskNotify mLockTaskNotify; 273 274 final ArrayList<PendingActivityLaunch> mPendingActivityLaunches 275 = new ArrayList<PendingActivityLaunch>(); 276 277 /** 278 * Description of a request to start a new activity, which has been held 279 * due to app switches being disabled. 280 */ 281 static class PendingActivityLaunch { 282 final ActivityRecord r; 283 final ActivityRecord sourceRecord; 284 final int startFlags; 285 final ActivityStack stack; 286 287 PendingActivityLaunch(ActivityRecord _r, ActivityRecord _sourceRecord, 288 int _startFlags, ActivityStack _stack) { 289 r = _r; 290 sourceRecord = _sourceRecord; 291 startFlags = _startFlags; 292 stack = _stack; 293 } 294 } 295 296 public ActivityStackSupervisor(ActivityManagerService service) { 297 mService = service; 298 mHandler = new ActivityStackSupervisorHandler(mService.mHandler.getLooper()); 299 } 300 301 /** 302 * At the time when the constructor runs, the power manager has not yet been 303 * initialized. So we initialize our wakelocks afterwards. 304 */ 305 void initPowerManagement() { 306 PowerManager pm = (PowerManager)mService.mContext.getSystemService(Context.POWER_SERVICE); 307 mGoingToSleep = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "ActivityManager-Sleep"); 308 mLaunchingActivity = 309 pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "ActivityManager-Launch"); 310 mLaunchingActivity.setReferenceCounted(false); 311 } 312 313 // This function returns a IStatusBarService. The value is from ServiceManager. 314 // getService and is cached. 315 private IStatusBarService getStatusBarService() { 316 synchronized (mService) { 317 if (mStatusBarService == null) { 318 mStatusBarService = IStatusBarService.Stub.asInterface( 319 ServiceManager.checkService(Context.STATUS_BAR_SERVICE)); 320 if (mStatusBarService == null) { 321 Slog.w("StatusBarManager", "warning: no STATUS_BAR_SERVICE"); 322 } 323 } 324 return mStatusBarService; 325 } 326 } 327 328 private IDevicePolicyManager getDevicePolicyManager() { 329 synchronized (mService) { 330 if (mDevicePolicyManager == null) { 331 mDevicePolicyManager = IDevicePolicyManager.Stub.asInterface( 332 ServiceManager.checkService(Context.DEVICE_POLICY_SERVICE)); 333 if (mDevicePolicyManager == null) { 334 Slog.w(TAG, "warning: no DEVICE_POLICY_SERVICE"); 335 } 336 } 337 return mDevicePolicyManager; 338 } 339 } 340 341 void setWindowManager(WindowManagerService wm) { 342 synchronized (mService) { 343 mWindowManager = wm; 344 345 mDisplayManager = 346 (DisplayManager)mService.mContext.getSystemService(Context.DISPLAY_SERVICE); 347 mDisplayManager.registerDisplayListener(this, null); 348 349 Display[] displays = mDisplayManager.getDisplays(); 350 for (int displayNdx = displays.length - 1; displayNdx >= 0; --displayNdx) { 351 final int displayId = displays[displayNdx].getDisplayId(); 352 ActivityDisplay activityDisplay = new ActivityDisplay(displayId); 353 if (activityDisplay.mDisplay == null) { 354 throw new IllegalStateException("Default Display does not exist"); 355 } 356 mActivityDisplays.put(displayId, activityDisplay); 357 } 358 359 createStackOnDisplay(HOME_STACK_ID, Display.DEFAULT_DISPLAY); 360 mHomeStack = mFocusedStack = mLastFocusedStack = getStack(HOME_STACK_ID); 361 362 mInputManagerInternal = LocalServices.getService(InputManagerInternal.class); 363 364 // Initialize this here, now that we can get a valid reference to PackageManager. 365 mLeanbackOnlyDevice = isLeanbackOnlyDevice(); 366 } 367 } 368 369 void notifyActivityDrawnForKeyguard() { 370 if (ActivityManagerService.DEBUG_LOCKSCREEN) mService.logLockScreen(""); 371 mWindowManager.notifyActivityDrawnForKeyguard(); 372 } 373 374 ActivityStack getFocusedStack() { 375 return mFocusedStack; 376 } 377 378 ActivityStack getLastStack() { 379 return mLastFocusedStack; 380 } 381 382 // TODO: Split into two methods isFrontStack for any visible stack and isFrontmostStack for the 383 // top of all visible stacks. 384 boolean isFrontStack(ActivityStack stack) { 385 final ActivityRecord parent = stack.mActivityContainer.mParentActivity; 386 if (parent != null) { 387 stack = parent.task.stack; 388 } 389 ArrayList<ActivityStack> stacks = stack.mStacks; 390 if (stacks != null && !stacks.isEmpty()) { 391 return stack == stacks.get(stacks.size() - 1); 392 } 393 return false; 394 } 395 396 void moveHomeStack(boolean toFront) { 397 ArrayList<ActivityStack> stacks = mHomeStack.mStacks; 398 int topNdx = stacks.size() - 1; 399 if (topNdx <= 0) { 400 return; 401 } 402 ActivityStack topStack = stacks.get(topNdx); 403 final boolean homeInFront = topStack == mHomeStack; 404 if (homeInFront != toFront) { 405 mLastFocusedStack = topStack; 406 stacks.remove(mHomeStack); 407 stacks.add(toFront ? topNdx : 0, mHomeStack); 408 mFocusedStack = stacks.get(topNdx); 409 if (DEBUG_STACK) Slog.d(TAG, "moveHomeTask: topStack old=" + topStack + " new=" 410 + mFocusedStack); 411 } 412 } 413 414 void moveHomeStackTaskToTop(int homeStackTaskType) { 415 if (homeStackTaskType == RECENTS_ACTIVITY_TYPE) { 416 mWindowManager.showRecentApps(); 417 return; 418 } 419 moveHomeStack(true); 420 mHomeStack.moveHomeStackTaskToTop(homeStackTaskType); 421 } 422 423 boolean resumeHomeStackTask(int homeStackTaskType, ActivityRecord prev) { 424 if (!mService.mBooting && !mService.mBooted) { 425 // Not ready yet! 426 return false; 427 } 428 429 if (homeStackTaskType == RECENTS_ACTIVITY_TYPE) { 430 mWindowManager.showRecentApps(); 431 return false; 432 } 433 moveHomeStackTaskToTop(homeStackTaskType); 434 if (prev != null) { 435 prev.task.setTaskToReturnTo(APPLICATION_ACTIVITY_TYPE); 436 } 437 438 ActivityRecord r = mHomeStack.topRunningActivityLocked(null); 439 // if (r != null && (r.isHomeActivity() || r.isRecentsActivity())) { 440 if (r != null && r.isHomeActivity()) { 441 mService.setFocusedActivityLocked(r); 442 return resumeTopActivitiesLocked(mHomeStack, prev, null); 443 } 444 return mService.startHomeActivityLocked(mCurrentUser); 445 } 446 447 void keyguardWaitingForActivityDrawn() { 448 mWindowManager.keyguardWaitingForActivityDrawn(); 449 } 450 451 TaskRecord anyTaskForIdLocked(int id) { 452 int numDisplays = mActivityDisplays.size(); 453 for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) { 454 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 455 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 456 ActivityStack stack = stacks.get(stackNdx); 457 TaskRecord task = stack.taskForIdLocked(id); 458 if (task != null) { 459 return task; 460 } 461 } 462 } 463 return null; 464 } 465 466 ActivityRecord isInAnyStackLocked(IBinder token) { 467 int numDisplays = mActivityDisplays.size(); 468 for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) { 469 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 470 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 471 final ActivityRecord r = stacks.get(stackNdx).isInStackLocked(token); 472 if (r != null) { 473 return r; 474 } 475 } 476 } 477 return null; 478 } 479 480 void setNextTaskId(int taskId) { 481 if (taskId > mCurTaskId) { 482 mCurTaskId = taskId; 483 } 484 } 485 486 int getNextTaskId() { 487 do { 488 mCurTaskId++; 489 if (mCurTaskId <= 0) { 490 mCurTaskId = 1; 491 } 492 } while (anyTaskForIdLocked(mCurTaskId) != null); 493 return mCurTaskId; 494 } 495 496 ActivityRecord resumedAppLocked() { 497 ActivityStack stack = getFocusedStack(); 498 if (stack == null) { 499 return null; 500 } 501 ActivityRecord resumedActivity = stack.mResumedActivity; 502 if (resumedActivity == null || resumedActivity.app == null) { 503 resumedActivity = stack.mPausingActivity; 504 if (resumedActivity == null || resumedActivity.app == null) { 505 resumedActivity = stack.topRunningActivityLocked(null); 506 } 507 } 508 return resumedActivity; 509 } 510 511 boolean attachApplicationLocked(ProcessRecord app) throws RemoteException { 512 final String processName = app.processName; 513 boolean didSomething = false; 514 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 515 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 516 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 517 final ActivityStack stack = stacks.get(stackNdx); 518 if (!isFrontStack(stack)) { 519 continue; 520 } 521 ActivityRecord hr = stack.topRunningActivityLocked(null); 522 if (hr != null) { 523 if (hr.app == null && app.uid == hr.info.applicationInfo.uid 524 && processName.equals(hr.processName)) { 525 try { 526 if (realStartActivityLocked(hr, app, true, true)) { 527 didSomething = true; 528 } 529 } catch (RemoteException e) { 530 Slog.w(TAG, "Exception in new application when starting activity " 531 + hr.intent.getComponent().flattenToShortString(), e); 532 throw e; 533 } 534 } 535 } 536 } 537 } 538 if (!didSomething) { 539 ensureActivitiesVisibleLocked(null, 0); 540 } 541 return didSomething; 542 } 543 544 boolean allResumedActivitiesIdle() { 545 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 546 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 547 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 548 final ActivityStack stack = stacks.get(stackNdx); 549 if (!isFrontStack(stack) || stack.numActivities() == 0) { 550 continue; 551 } 552 final ActivityRecord resumedActivity = stack.mResumedActivity; 553 if (resumedActivity == null || !resumedActivity.idle) { 554 if (DEBUG_STATES) Slog.d(TAG, "allResumedActivitiesIdle: stack=" 555 + stack.mStackId + " " + resumedActivity + " not idle"); 556 return false; 557 } 558 } 559 } 560 return true; 561 } 562 563 boolean allResumedActivitiesComplete() { 564 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 565 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 566 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 567 final ActivityStack stack = stacks.get(stackNdx); 568 if (isFrontStack(stack)) { 569 final ActivityRecord r = stack.mResumedActivity; 570 if (r != null && r.state != ActivityState.RESUMED) { 571 return false; 572 } 573 } 574 } 575 } 576 // TODO: Not sure if this should check if all Paused are complete too. 577 if (DEBUG_STACK) Slog.d(TAG, 578 "allResumedActivitiesComplete: mLastFocusedStack changing from=" + 579 mLastFocusedStack + " to=" + mFocusedStack); 580 mLastFocusedStack = mFocusedStack; 581 return true; 582 } 583 584 boolean allResumedActivitiesVisible() { 585 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 586 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 587 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 588 final ActivityStack stack = stacks.get(stackNdx); 589 final ActivityRecord r = stack.mResumedActivity; 590 if (r != null && (!r.nowVisible || r.waitingVisible)) { 591 return false; 592 } 593 } 594 } 595 return true; 596 } 597 598 /** 599 * Pause all activities in either all of the stacks or just the back stacks. 600 * @param userLeaving Passed to pauseActivity() to indicate whether to call onUserLeaving(). 601 * @return true if any activity was paused as a result of this call. 602 */ 603 boolean pauseBackStacks(boolean userLeaving, boolean resuming, boolean dontWait) { 604 boolean someActivityPaused = false; 605 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 606 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 607 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 608 final ActivityStack stack = stacks.get(stackNdx); 609 if (!isFrontStack(stack) && stack.mResumedActivity != null) { 610 if (DEBUG_STATES) Slog.d(TAG, "pauseBackStacks: stack=" + stack + 611 " mResumedActivity=" + stack.mResumedActivity); 612 someActivityPaused |= stack.startPausingLocked(userLeaving, false, resuming, 613 dontWait); 614 } 615 } 616 } 617 return someActivityPaused; 618 } 619 620 boolean allPausedActivitiesComplete() { 621 boolean pausing = true; 622 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 623 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 624 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 625 final ActivityStack stack = stacks.get(stackNdx); 626 final ActivityRecord r = stack.mPausingActivity; 627 if (r != null && r.state != ActivityState.PAUSED 628 && r.state != ActivityState.STOPPED 629 && r.state != ActivityState.STOPPING) { 630 if (DEBUG_STATES) { 631 Slog.d(TAG, "allPausedActivitiesComplete: r=" + r + " state=" + r.state); 632 pausing = false; 633 } else { 634 return false; 635 } 636 } 637 } 638 } 639 return pausing; 640 } 641 642 void pauseChildStacks(ActivityRecord parent, boolean userLeaving, boolean uiSleeping, 643 boolean resuming, boolean dontWait) { 644 // TODO: Put all stacks in supervisor and iterate through them instead. 645 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 646 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 647 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 648 final ActivityStack stack = stacks.get(stackNdx); 649 if (stack.mResumedActivity != null && 650 stack.mActivityContainer.mParentActivity == parent) { 651 stack.startPausingLocked(userLeaving, uiSleeping, resuming, dontWait); 652 } 653 } 654 } 655 } 656 657 void reportActivityVisibleLocked(ActivityRecord r) { 658 sendWaitingVisibleReportLocked(r); 659 notifyActivityDrawnForKeyguard(); 660 } 661 662 void sendWaitingVisibleReportLocked(ActivityRecord r) { 663 boolean changed = false; 664 for (int i = mWaitingActivityVisible.size()-1; i >= 0; i--) { 665 WaitResult w = mWaitingActivityVisible.get(i); 666 if (w.who == null) { 667 changed = true; 668 w.timeout = false; 669 if (r != null) { 670 w.who = new ComponentName(r.info.packageName, r.info.name); 671 } 672 w.totalTime = SystemClock.uptimeMillis() - w.thisTime; 673 w.thisTime = w.totalTime; 674 } 675 } 676 if (changed) { 677 mService.notifyAll(); 678 } 679 } 680 681 void reportActivityLaunchedLocked(boolean timeout, ActivityRecord r, 682 long thisTime, long totalTime) { 683 boolean changed = false; 684 for (int i = mWaitingActivityLaunched.size() - 1; i >= 0; i--) { 685 WaitResult w = mWaitingActivityLaunched.remove(i); 686 if (w.who == null) { 687 changed = true; 688 w.timeout = timeout; 689 if (r != null) { 690 w.who = new ComponentName(r.info.packageName, r.info.name); 691 } 692 w.thisTime = thisTime; 693 w.totalTime = totalTime; 694 } 695 } 696 if (changed) { 697 mService.notifyAll(); 698 } 699 } 700 701 ActivityRecord topRunningActivityLocked() { 702 final ActivityStack focusedStack = getFocusedStack(); 703 ActivityRecord r = focusedStack.topRunningActivityLocked(null); 704 if (r != null) { 705 return r; 706 } 707 708 // Return to the home stack. 709 final ArrayList<ActivityStack> stacks = mHomeStack.mStacks; 710 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 711 final ActivityStack stack = stacks.get(stackNdx); 712 if (stack != focusedStack && isFrontStack(stack)) { 713 r = stack.topRunningActivityLocked(null); 714 if (r != null) { 715 return r; 716 } 717 } 718 } 719 return null; 720 } 721 722 void getTasksLocked(int maxNum, List<RunningTaskInfo> list, int callingUid, boolean allowed) { 723 // Gather all of the running tasks for each stack into runningTaskLists. 724 ArrayList<ArrayList<RunningTaskInfo>> runningTaskLists = 725 new ArrayList<ArrayList<RunningTaskInfo>>(); 726 final int numDisplays = mActivityDisplays.size(); 727 for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) { 728 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 729 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 730 final ActivityStack stack = stacks.get(stackNdx); 731 ArrayList<RunningTaskInfo> stackTaskList = new ArrayList<RunningTaskInfo>(); 732 runningTaskLists.add(stackTaskList); 733 stack.getTasksLocked(stackTaskList, callingUid, allowed); 734 } 735 } 736 737 // The lists are already sorted from most recent to oldest. Just pull the most recent off 738 // each list and add it to list. Stop when all lists are empty or maxNum reached. 739 while (maxNum > 0) { 740 long mostRecentActiveTime = Long.MIN_VALUE; 741 ArrayList<RunningTaskInfo> selectedStackList = null; 742 final int numTaskLists = runningTaskLists.size(); 743 for (int stackNdx = 0; stackNdx < numTaskLists; ++stackNdx) { 744 ArrayList<RunningTaskInfo> stackTaskList = runningTaskLists.get(stackNdx); 745 if (!stackTaskList.isEmpty()) { 746 final long lastActiveTime = stackTaskList.get(0).lastActiveTime; 747 if (lastActiveTime > mostRecentActiveTime) { 748 mostRecentActiveTime = lastActiveTime; 749 selectedStackList = stackTaskList; 750 } 751 } 752 } 753 if (selectedStackList != null) { 754 list.add(selectedStackList.remove(0)); 755 --maxNum; 756 } else { 757 break; 758 } 759 } 760 } 761 762 ActivityInfo resolveActivity(Intent intent, String resolvedType, int startFlags, 763 ProfilerInfo profilerInfo, int userId) { 764 // Collect information about the target of the Intent. 765 ActivityInfo aInfo; 766 try { 767 ResolveInfo rInfo = 768 AppGlobals.getPackageManager().resolveIntent( 769 intent, resolvedType, 770 PackageManager.MATCH_DEFAULT_ONLY 771 | ActivityManagerService.STOCK_PM_FLAGS, userId); 772 aInfo = rInfo != null ? rInfo.activityInfo : null; 773 } catch (RemoteException e) { 774 aInfo = null; 775 } 776 777 if (aInfo != null) { 778 // Store the found target back into the intent, because now that 779 // we have it we never want to do this again. For example, if the 780 // user navigates back to this point in the history, we should 781 // always restart the exact same activity. 782 intent.setComponent(new ComponentName( 783 aInfo.applicationInfo.packageName, aInfo.name)); 784 785 // Don't debug things in the system process 786 if ((startFlags&ActivityManager.START_FLAG_DEBUG) != 0) { 787 if (!aInfo.processName.equals("system")) { 788 mService.setDebugApp(aInfo.processName, true, false); 789 } 790 } 791 792 if ((startFlags&ActivityManager.START_FLAG_OPENGL_TRACES) != 0) { 793 if (!aInfo.processName.equals("system")) { 794 mService.setOpenGlTraceApp(aInfo.applicationInfo, aInfo.processName); 795 } 796 } 797 798 if (profilerInfo != null) { 799 if (!aInfo.processName.equals("system")) { 800 mService.setProfileApp(aInfo.applicationInfo, aInfo.processName, profilerInfo); 801 } 802 } 803 } 804 return aInfo; 805 } 806 807 void startHomeActivity(Intent intent, ActivityInfo aInfo) { 808 moveHomeStackTaskToTop(HOME_ACTIVITY_TYPE); 809 startActivityLocked(null, intent, null, aInfo, null, null, null, null, 0, 0, 0, null, 810 0, 0, 0, null, false, null, null, null); 811 } 812 813 final int startActivityMayWait(IApplicationThread caller, int callingUid, 814 String callingPackage, Intent intent, String resolvedType, 815 IVoiceInteractionSession voiceSession, IVoiceInteractor voiceInteractor, 816 IBinder resultTo, String resultWho, int requestCode, int startFlags, 817 ProfilerInfo profilerInfo, WaitResult outResult, Configuration config, 818 Bundle options, int userId, IActivityContainer iContainer, TaskRecord inTask) { 819 // Refuse possible leaked file descriptors 820 if (intent != null && intent.hasFileDescriptors()) { 821 throw new IllegalArgumentException("File descriptors passed in Intent"); 822 } 823 boolean componentSpecified = intent.getComponent() != null; 824 825 // Don't modify the client's object! 826 intent = new Intent(intent); 827 828 // Collect information about the target of the Intent. 829 ActivityInfo aInfo = resolveActivity(intent, resolvedType, startFlags, 830 profilerInfo, userId); 831 832 ActivityContainer container = (ActivityContainer)iContainer; 833 synchronized (mService) { 834 final int realCallingPid = Binder.getCallingPid(); 835 final int realCallingUid = Binder.getCallingUid(); 836 int callingPid; 837 if (callingUid >= 0) { 838 callingPid = -1; 839 } else if (caller == null) { 840 callingPid = realCallingPid; 841 callingUid = realCallingUid; 842 } else { 843 callingPid = callingUid = -1; 844 } 845 846 final ActivityStack stack; 847 if (container == null || container.mStack.isOnHomeDisplay()) { 848 stack = getFocusedStack(); 849 } else { 850 stack = container.mStack; 851 } 852 stack.mConfigWillChange = config != null 853 && mService.mConfiguration.diff(config) != 0; 854 if (DEBUG_CONFIGURATION) Slog.v(TAG, 855 "Starting activity when config will change = " + stack.mConfigWillChange); 856 857 final long origId = Binder.clearCallingIdentity(); 858 859 if (aInfo != null && 860 (aInfo.applicationInfo.flags&ApplicationInfo.FLAG_CANT_SAVE_STATE) != 0) { 861 // This may be a heavy-weight process! Check to see if we already 862 // have another, different heavy-weight process running. 863 if (aInfo.processName.equals(aInfo.applicationInfo.packageName)) { 864 if (mService.mHeavyWeightProcess != null && 865 (mService.mHeavyWeightProcess.info.uid != aInfo.applicationInfo.uid || 866 !mService.mHeavyWeightProcess.processName.equals(aInfo.processName))) { 867 int appCallingUid = callingUid; 868 if (caller != null) { 869 ProcessRecord callerApp = mService.getRecordForAppLocked(caller); 870 if (callerApp != null) { 871 appCallingUid = callerApp.info.uid; 872 } else { 873 Slog.w(TAG, "Unable to find app for caller " + caller 874 + " (pid=" + callingPid + ") when starting: " 875 + intent.toString()); 876 ActivityOptions.abort(options); 877 return ActivityManager.START_PERMISSION_DENIED; 878 } 879 } 880 881 IIntentSender target = mService.getIntentSenderLocked( 882 ActivityManager.INTENT_SENDER_ACTIVITY, "android", 883 appCallingUid, userId, null, null, 0, new Intent[] { intent }, 884 new String[] { resolvedType }, PendingIntent.FLAG_CANCEL_CURRENT 885 | PendingIntent.FLAG_ONE_SHOT, null); 886 887 Intent newIntent = new Intent(); 888 if (requestCode >= 0) { 889 // Caller is requesting a result. 890 newIntent.putExtra(HeavyWeightSwitcherActivity.KEY_HAS_RESULT, true); 891 } 892 newIntent.putExtra(HeavyWeightSwitcherActivity.KEY_INTENT, 893 new IntentSender(target)); 894 if (mService.mHeavyWeightProcess.activities.size() > 0) { 895 ActivityRecord hist = mService.mHeavyWeightProcess.activities.get(0); 896 newIntent.putExtra(HeavyWeightSwitcherActivity.KEY_CUR_APP, 897 hist.packageName); 898 newIntent.putExtra(HeavyWeightSwitcherActivity.KEY_CUR_TASK, 899 hist.task.taskId); 900 } 901 newIntent.putExtra(HeavyWeightSwitcherActivity.KEY_NEW_APP, 902 aInfo.packageName); 903 newIntent.setFlags(intent.getFlags()); 904 newIntent.setClassName("android", 905 HeavyWeightSwitcherActivity.class.getName()); 906 intent = newIntent; 907 resolvedType = null; 908 caller = null; 909 callingUid = Binder.getCallingUid(); 910 callingPid = Binder.getCallingPid(); 911 componentSpecified = true; 912 try { 913 ResolveInfo rInfo = 914 AppGlobals.getPackageManager().resolveIntent( 915 intent, null, 916 PackageManager.MATCH_DEFAULT_ONLY 917 | ActivityManagerService.STOCK_PM_FLAGS, userId); 918 aInfo = rInfo != null ? rInfo.activityInfo : null; 919 aInfo = mService.getActivityInfoForUser(aInfo, userId); 920 } catch (RemoteException e) { 921 aInfo = null; 922 } 923 } 924 } 925 } 926 927 int res = startActivityLocked(caller, intent, resolvedType, aInfo, 928 voiceSession, voiceInteractor, resultTo, resultWho, 929 requestCode, callingPid, callingUid, callingPackage, 930 realCallingPid, realCallingUid, startFlags, options, 931 componentSpecified, null, container, inTask); 932 933 Binder.restoreCallingIdentity(origId); 934 935 if (stack.mConfigWillChange) { 936 // If the caller also wants to switch to a new configuration, 937 // do so now. This allows a clean switch, as we are waiting 938 // for the current activity to pause (so we will not destroy 939 // it), and have not yet started the next activity. 940 mService.enforceCallingPermission(android.Manifest.permission.CHANGE_CONFIGURATION, 941 "updateConfiguration()"); 942 stack.mConfigWillChange = false; 943 if (DEBUG_CONFIGURATION) Slog.v(TAG, 944 "Updating to new configuration after starting activity."); 945 mService.updateConfigurationLocked(config, null, false, false); 946 } 947 948 if (outResult != null) { 949 outResult.result = res; 950 if (res == ActivityManager.START_SUCCESS) { 951 mWaitingActivityLaunched.add(outResult); 952 do { 953 try { 954 mService.wait(); 955 } catch (InterruptedException e) { 956 } 957 } while (!outResult.timeout && outResult.who == null); 958 } else if (res == ActivityManager.START_TASK_TO_FRONT) { 959 ActivityRecord r = stack.topRunningActivityLocked(null); 960 if (r.nowVisible && r.state == ActivityState.RESUMED) { 961 outResult.timeout = false; 962 outResult.who = new ComponentName(r.info.packageName, r.info.name); 963 outResult.totalTime = 0; 964 outResult.thisTime = 0; 965 } else { 966 outResult.thisTime = SystemClock.uptimeMillis(); 967 mWaitingActivityVisible.add(outResult); 968 do { 969 try { 970 mService.wait(); 971 } catch (InterruptedException e) { 972 } 973 } while (!outResult.timeout && outResult.who == null); 974 } 975 } 976 } 977 978 return res; 979 } 980 } 981 982 final int startActivities(IApplicationThread caller, int callingUid, String callingPackage, 983 Intent[] intents, String[] resolvedTypes, IBinder resultTo, 984 Bundle options, int userId) { 985 if (intents == null) { 986 throw new NullPointerException("intents is null"); 987 } 988 if (resolvedTypes == null) { 989 throw new NullPointerException("resolvedTypes is null"); 990 } 991 if (intents.length != resolvedTypes.length) { 992 throw new IllegalArgumentException("intents are length different than resolvedTypes"); 993 } 994 995 996 int callingPid; 997 if (callingUid >= 0) { 998 callingPid = -1; 999 } else if (caller == null) { 1000 callingPid = Binder.getCallingPid(); 1001 callingUid = Binder.getCallingUid(); 1002 } else { 1003 callingPid = callingUid = -1; 1004 } 1005 final long origId = Binder.clearCallingIdentity(); 1006 try { 1007 synchronized (mService) { 1008 ActivityRecord[] outActivity = new ActivityRecord[1]; 1009 for (int i=0; i<intents.length; i++) { 1010 Intent intent = intents[i]; 1011 if (intent == null) { 1012 continue; 1013 } 1014 1015 // Refuse possible leaked file descriptors 1016 if (intent != null && intent.hasFileDescriptors()) { 1017 throw new IllegalArgumentException("File descriptors passed in Intent"); 1018 } 1019 1020 boolean componentSpecified = intent.getComponent() != null; 1021 1022 // Don't modify the client's object! 1023 intent = new Intent(intent); 1024 1025 // Collect information about the target of the Intent. 1026 ActivityInfo aInfo = resolveActivity(intent, resolvedTypes[i], 0, null, userId); 1027 // TODO: New, check if this is correct 1028 aInfo = mService.getActivityInfoForUser(aInfo, userId); 1029 1030 if (aInfo != null && 1031 (aInfo.applicationInfo.flags & ApplicationInfo.FLAG_CANT_SAVE_STATE) 1032 != 0) { 1033 throw new IllegalArgumentException( 1034 "FLAG_CANT_SAVE_STATE not supported here"); 1035 } 1036 1037 Bundle theseOptions; 1038 if (options != null && i == intents.length-1) { 1039 theseOptions = options; 1040 } else { 1041 theseOptions = null; 1042 } 1043 int res = startActivityLocked(caller, intent, resolvedTypes[i], 1044 aInfo, null, null, resultTo, null, -1, callingPid, callingUid, 1045 callingPackage, callingPid, callingUid, 1046 0, theseOptions, componentSpecified, outActivity, null, null); 1047 if (res < 0) { 1048 return res; 1049 } 1050 1051 resultTo = outActivity[0] != null ? outActivity[0].appToken : null; 1052 } 1053 } 1054 } finally { 1055 Binder.restoreCallingIdentity(origId); 1056 } 1057 1058 return ActivityManager.START_SUCCESS; 1059 } 1060 1061 final boolean realStartActivityLocked(ActivityRecord r, 1062 ProcessRecord app, boolean andResume, boolean checkConfig) 1063 throws RemoteException { 1064 1065 r.startFreezingScreenLocked(app, 0); 1066 if (false) Slog.d(TAG, "realStartActivity: setting app visibility true"); 1067 mWindowManager.setAppVisibility(r.appToken, true); 1068 1069 // schedule launch ticks to collect information about slow apps. 1070 r.startLaunchTickingLocked(); 1071 1072 // Have the window manager re-evaluate the orientation of 1073 // the screen based on the new activity order. Note that 1074 // as a result of this, it can call back into the activity 1075 // manager with a new orientation. We don't care about that, 1076 // because the activity is not currently running so we are 1077 // just restarting it anyway. 1078 if (checkConfig) { 1079 Configuration config = mWindowManager.updateOrientationFromAppTokens( 1080 mService.mConfiguration, 1081 r.mayFreezeScreenLocked(app) ? r.appToken : null); 1082 mService.updateConfigurationLocked(config, r, false, false); 1083 } 1084 1085 r.app = app; 1086 app.waitingToKill = null; 1087 r.launchCount++; 1088 r.lastLaunchTime = SystemClock.uptimeMillis(); 1089 1090 if (localLOGV) Slog.v(TAG, "Launching: " + r); 1091 1092 int idx = app.activities.indexOf(r); 1093 if (idx < 0) { 1094 app.activities.add(r); 1095 } 1096 mService.updateLruProcessLocked(app, true, null); 1097 mService.updateOomAdjLocked(); 1098 1099 final ActivityStack stack = r.task.stack; 1100 try { 1101 if (app.thread == null) { 1102 throw new RemoteException(); 1103 } 1104 List<ResultInfo> results = null; 1105 List<Intent> newIntents = null; 1106 if (andResume) { 1107 results = r.results; 1108 newIntents = r.newIntents; 1109 } 1110 if (DEBUG_SWITCH) Slog.v(TAG, "Launching: " + r 1111 + " icicle=" + r.icicle 1112 + " with results=" + results + " newIntents=" + newIntents 1113 + " andResume=" + andResume); 1114 if (andResume) { 1115 EventLog.writeEvent(EventLogTags.AM_RESTART_ACTIVITY, 1116 r.userId, System.identityHashCode(r), 1117 r.task.taskId, r.shortComponentName); 1118 } 1119 if (r.isHomeActivity() && r.isNotResolverActivity()) { 1120 // Home process is the root process of the task. 1121 mService.mHomeProcess = r.task.mActivities.get(0).app; 1122 } 1123 mService.ensurePackageDexOpt(r.intent.getComponent().getPackageName()); 1124 r.sleeping = false; 1125 r.forceNewConfig = false; 1126 mService.showAskCompatModeDialogLocked(r); 1127 r.compat = mService.compatibilityInfoForPackageLocked(r.info.applicationInfo); 1128 String profileFile = null; 1129 ParcelFileDescriptor profileFd = null; 1130 if (mService.mProfileApp != null && mService.mProfileApp.equals(app.processName)) { 1131 if (mService.mProfileProc == null || mService.mProfileProc == app) { 1132 mService.mProfileProc = app; 1133 profileFile = mService.mProfileFile; 1134 profileFd = mService.mProfileFd; 1135 } 1136 } 1137 app.hasShownUi = true; 1138 app.pendingUiClean = true; 1139 if (profileFd != null) { 1140 try { 1141 profileFd = profileFd.dup(); 1142 } catch (IOException e) { 1143 if (profileFd != null) { 1144 try { 1145 profileFd.close(); 1146 } catch (IOException o) { 1147 } 1148 profileFd = null; 1149 } 1150 } 1151 } 1152 1153 ProfilerInfo profilerInfo = profileFile != null 1154 ? new ProfilerInfo(profileFile, profileFd, mService.mSamplingInterval, 1155 mService.mAutoStopProfiler) : null; 1156 app.forceProcessStateUpTo(ActivityManager.PROCESS_STATE_TOP); 1157 app.thread.scheduleLaunchActivity(new Intent(r.intent), r.appToken, 1158 System.identityHashCode(r), r.info, new Configuration(mService.mConfiguration), 1159 r.compat, r.task.voiceInteractor, app.repProcState, r.icicle, r.persistentState, 1160 results, newIntents, !andResume, mService.isNextTransitionForward(), 1161 profilerInfo); 1162 1163 if ((app.info.flags&ApplicationInfo.FLAG_CANT_SAVE_STATE) != 0) { 1164 // This may be a heavy-weight process! Note that the package 1165 // manager will ensure that only activity can run in the main 1166 // process of the .apk, which is the only thing that will be 1167 // considered heavy-weight. 1168 if (app.processName.equals(app.info.packageName)) { 1169 if (mService.mHeavyWeightProcess != null 1170 && mService.mHeavyWeightProcess != app) { 1171 Slog.w(TAG, "Starting new heavy weight process " + app 1172 + " when already running " 1173 + mService.mHeavyWeightProcess); 1174 } 1175 mService.mHeavyWeightProcess = app; 1176 Message msg = mService.mHandler.obtainMessage( 1177 ActivityManagerService.POST_HEAVY_NOTIFICATION_MSG); 1178 msg.obj = r; 1179 mService.mHandler.sendMessage(msg); 1180 } 1181 } 1182 1183 } catch (RemoteException e) { 1184 if (r.launchFailed) { 1185 // This is the second time we failed -- finish activity 1186 // and give up. 1187 Slog.e(TAG, "Second failure launching " 1188 + r.intent.getComponent().flattenToShortString() 1189 + ", giving up", e); 1190 mService.appDiedLocked(app); 1191 stack.requestFinishActivityLocked(r.appToken, Activity.RESULT_CANCELED, null, 1192 "2nd-crash", false); 1193 return false; 1194 } 1195 1196 // This is the first time we failed -- restart process and 1197 // retry. 1198 app.activities.remove(r); 1199 throw e; 1200 } 1201 1202 r.launchFailed = false; 1203 if (stack.updateLRUListLocked(r)) { 1204 Slog.w(TAG, "Activity " + r 1205 + " being launched, but already in LRU list"); 1206 } 1207 1208 if (andResume) { 1209 // As part of the process of launching, ActivityThread also performs 1210 // a resume. 1211 stack.minimalResumeActivityLocked(r); 1212 } else { 1213 // This activity is not starting in the resumed state... which 1214 // should look like we asked it to pause+stop (but remain visible), 1215 // and it has done so and reported back the current icicle and 1216 // other state. 1217 if (DEBUG_STATES) Slog.v(TAG, "Moving to STOPPED: " + r 1218 + " (starting in stopped state)"); 1219 r.state = ActivityState.STOPPED; 1220 r.stopped = true; 1221 } 1222 1223 // Launch the new version setup screen if needed. We do this -after- 1224 // launching the initial activity (that is, home), so that it can have 1225 // a chance to initialize itself while in the background, making the 1226 // switch back to it faster and look better. 1227 if (isFrontStack(stack)) { 1228 mService.startSetupActivityLocked(); 1229 } 1230 1231 // Update any services we are bound to that might care about whether 1232 // their client may have activities. 1233 mService.mServices.updateServiceConnectionActivitiesLocked(r.app); 1234 1235 return true; 1236 } 1237 1238 void startSpecificActivityLocked(ActivityRecord r, 1239 boolean andResume, boolean checkConfig) { 1240 // Is this activity's application already running? 1241 ProcessRecord app = mService.getProcessRecordLocked(r.processName, 1242 r.info.applicationInfo.uid, true); 1243 1244 r.task.stack.setLaunchTime(r); 1245 1246 if (app != null && app.thread != null) { 1247 try { 1248 if ((r.info.flags&ActivityInfo.FLAG_MULTIPROCESS) == 0 1249 || !"android".equals(r.info.packageName)) { 1250 // Don't add this if it is a platform component that is marked 1251 // to run in multiple processes, because this is actually 1252 // part of the framework so doesn't make sense to track as a 1253 // separate apk in the process. 1254 app.addPackage(r.info.packageName, r.info.applicationInfo.versionCode, 1255 mService.mProcessStats); 1256 } 1257 realStartActivityLocked(r, app, andResume, checkConfig); 1258 return; 1259 } catch (RemoteException e) { 1260 Slog.w(TAG, "Exception when starting activity " 1261 + r.intent.getComponent().flattenToShortString(), e); 1262 } 1263 1264 // If a dead object exception was thrown -- fall through to 1265 // restart the application. 1266 } 1267 1268 mService.startProcessLocked(r.processName, r.info.applicationInfo, true, 0, 1269 "activity", r.intent.getComponent(), false, false, true); 1270 } 1271 1272 final int startActivityLocked(IApplicationThread caller, 1273 Intent intent, String resolvedType, ActivityInfo aInfo, 1274 IVoiceInteractionSession voiceSession, IVoiceInteractor voiceInteractor, 1275 IBinder resultTo, String resultWho, int requestCode, 1276 int callingPid, int callingUid, String callingPackage, 1277 int realCallingPid, int realCallingUid, int startFlags, Bundle options, 1278 boolean componentSpecified, ActivityRecord[] outActivity, ActivityContainer container, 1279 TaskRecord inTask) { 1280 int err = ActivityManager.START_SUCCESS; 1281 1282 ProcessRecord callerApp = null; 1283 if (caller != null) { 1284 callerApp = mService.getRecordForAppLocked(caller); 1285 if (callerApp != null) { 1286 callingPid = callerApp.pid; 1287 callingUid = callerApp.info.uid; 1288 } else { 1289 Slog.w(TAG, "Unable to find app for caller " + caller 1290 + " (pid=" + callingPid + ") when starting: " 1291 + intent.toString()); 1292 err = ActivityManager.START_PERMISSION_DENIED; 1293 } 1294 } 1295 1296 if (err == ActivityManager.START_SUCCESS) { 1297 final int userId = aInfo != null ? UserHandle.getUserId(aInfo.applicationInfo.uid) : 0; 1298 Slog.i(TAG, "START u" + userId + " {" + intent.toShortString(true, true, true, false) 1299 + "} from uid " + callingUid 1300 + " on display " + (container == null ? (mFocusedStack == null ? 1301 Display.DEFAULT_DISPLAY : mFocusedStack.mDisplayId) : 1302 (container.mActivityDisplay == null ? Display.DEFAULT_DISPLAY : 1303 container.mActivityDisplay.mDisplayId))); 1304 } 1305 1306 ActivityRecord sourceRecord = null; 1307 ActivityRecord resultRecord = null; 1308 if (resultTo != null) { 1309 sourceRecord = isInAnyStackLocked(resultTo); 1310 if (DEBUG_RESULTS) Slog.v( 1311 TAG, "Will send result to " + resultTo + " " + sourceRecord); 1312 if (sourceRecord != null) { 1313 if (requestCode >= 0 && !sourceRecord.finishing) { 1314 resultRecord = sourceRecord; 1315 } 1316 } 1317 } 1318 ActivityStack resultStack = resultRecord == null ? null : resultRecord.task.stack; 1319 1320 final int launchFlags = intent.getFlags(); 1321 1322 if ((launchFlags&Intent.FLAG_ACTIVITY_FORWARD_RESULT) != 0 && sourceRecord != null) { 1323 // Transfer the result target from the source activity to the new 1324 // one being started, including any failures. 1325 if (requestCode >= 0) { 1326 ActivityOptions.abort(options); 1327 return ActivityManager.START_FORWARD_AND_REQUEST_CONFLICT; 1328 } 1329 resultRecord = sourceRecord.resultTo; 1330 resultWho = sourceRecord.resultWho; 1331 requestCode = sourceRecord.requestCode; 1332 sourceRecord.resultTo = null; 1333 if (resultRecord != null) { 1334 resultRecord.removeResultsLocked(sourceRecord, resultWho, requestCode); 1335 } 1336 if (sourceRecord.launchedFromUid == callingUid) { 1337 // The new activity is being launched from the same uid as the previous 1338 // activity in the flow, and asking to forward its result back to the 1339 // previous. In this case the activity is serving as a trampoline between 1340 // the two, so we also want to update its launchedFromPackage to be the 1341 // same as the previous activity. Note that this is safe, since we know 1342 // these two packages come from the same uid; the caller could just as 1343 // well have supplied that same package name itself. This specifially 1344 // deals with the case of an intent picker/chooser being launched in the app 1345 // flow to redirect to an activity picked by the user, where we want the final 1346 // activity to consider it to have been launched by the previous app activity. 1347 callingPackage = sourceRecord.launchedFromPackage; 1348 } 1349 } 1350 1351 if (err == ActivityManager.START_SUCCESS && intent.getComponent() == null) { 1352 // We couldn't find a class that can handle the given Intent. 1353 // That's the end of that! 1354 err = ActivityManager.START_INTENT_NOT_RESOLVED; 1355 } 1356 1357 if (err == ActivityManager.START_SUCCESS && aInfo == null) { 1358 // We couldn't find the specific class specified in the Intent. 1359 // Also the end of the line. 1360 err = ActivityManager.START_CLASS_NOT_FOUND; 1361 } 1362 1363 if (err == ActivityManager.START_SUCCESS && sourceRecord != null 1364 && sourceRecord.task.voiceSession != null) { 1365 // If this activity is being launched as part of a voice session, we need 1366 // to ensure that it is safe to do so. If the upcoming activity will also 1367 // be part of the voice session, we can only launch it if it has explicitly 1368 // said it supports the VOICE category, or it is a part of the calling app. 1369 if ((launchFlags & Intent.FLAG_ACTIVITY_NEW_TASK) == 0 1370 && sourceRecord.info.applicationInfo.uid != aInfo.applicationInfo.uid) { 1371 try { 1372 if (!AppGlobals.getPackageManager().activitySupportsIntent( 1373 intent.getComponent(), intent, resolvedType)) { 1374 err = ActivityManager.START_NOT_VOICE_COMPATIBLE; 1375 } 1376 } catch (RemoteException e) { 1377 err = ActivityManager.START_NOT_VOICE_COMPATIBLE; 1378 } 1379 } 1380 } 1381 1382 if (err == ActivityManager.START_SUCCESS && voiceSession != null) { 1383 // If the caller is starting a new voice session, just make sure the target 1384 // is actually allowing it to run this way. 1385 try { 1386 if (!AppGlobals.getPackageManager().activitySupportsIntent(intent.getComponent(), 1387 intent, resolvedType)) { 1388 err = ActivityManager.START_NOT_VOICE_COMPATIBLE; 1389 } 1390 } catch (RemoteException e) { 1391 err = ActivityManager.START_NOT_VOICE_COMPATIBLE; 1392 } 1393 } 1394 1395 if (err != ActivityManager.START_SUCCESS) { 1396 if (resultRecord != null) { 1397 resultStack.sendActivityResultLocked(-1, 1398 resultRecord, resultWho, requestCode, 1399 Activity.RESULT_CANCELED, null); 1400 } 1401 ActivityOptions.abort(options); 1402 return err; 1403 } 1404 1405 final int startAnyPerm = mService.checkPermission( 1406 START_ANY_ACTIVITY, callingPid, callingUid); 1407 final int componentPerm = mService.checkComponentPermission(aInfo.permission, callingPid, 1408 callingUid, aInfo.applicationInfo.uid, aInfo.exported); 1409 if (startAnyPerm != PERMISSION_GRANTED && componentPerm != PERMISSION_GRANTED) { 1410 if (resultRecord != null) { 1411 resultStack.sendActivityResultLocked(-1, 1412 resultRecord, resultWho, requestCode, 1413 Activity.RESULT_CANCELED, null); 1414 } 1415 String msg; 1416 if (!aInfo.exported) { 1417 msg = "Permission Denial: starting " + intent.toString() 1418 + " from " + callerApp + " (pid=" + callingPid 1419 + ", uid=" + callingUid + ")" 1420 + " not exported from uid " + aInfo.applicationInfo.uid; 1421 } else { 1422 msg = "Permission Denial: starting " + intent.toString() 1423 + " from " + callerApp + " (pid=" + callingPid 1424 + ", uid=" + callingUid + ")" 1425 + " requires " + aInfo.permission; 1426 } 1427 Slog.w(TAG, msg); 1428 throw new SecurityException(msg); 1429 } 1430 1431 boolean abort = !mService.mIntentFirewall.checkStartActivity(intent, callingUid, 1432 callingPid, resolvedType, aInfo.applicationInfo); 1433 1434 if (mService.mController != null) { 1435 try { 1436 // The Intent we give to the watcher has the extra data 1437 // stripped off, since it can contain private information. 1438 Intent watchIntent = intent.cloneFilter(); 1439 abort |= !mService.mController.activityStarting(watchIntent, 1440 aInfo.applicationInfo.packageName); 1441 } catch (RemoteException e) { 1442 mService.mController = null; 1443 } 1444 } 1445 1446 if (abort) { 1447 if (resultRecord != null) { 1448 resultStack.sendActivityResultLocked(-1, resultRecord, resultWho, requestCode, 1449 Activity.RESULT_CANCELED, null); 1450 } 1451 // We pretend to the caller that it was really started, but 1452 // they will just get a cancel result. 1453 ActivityOptions.abort(options); 1454 return ActivityManager.START_SUCCESS; 1455 } 1456 1457 ActivityRecord r = new ActivityRecord(mService, callerApp, callingUid, callingPackage, 1458 intent, resolvedType, aInfo, mService.mConfiguration, resultRecord, resultWho, 1459 requestCode, componentSpecified, this, container, options); 1460 if (outActivity != null) { 1461 outActivity[0] = r; 1462 } 1463 1464 final ActivityStack stack = getFocusedStack(); 1465 if (voiceSession == null && (stack.mResumedActivity == null 1466 || stack.mResumedActivity.info.applicationInfo.uid != callingUid)) { 1467 if (!mService.checkAppSwitchAllowedLocked(callingPid, callingUid, 1468 realCallingPid, realCallingUid, "Activity start")) { 1469 PendingActivityLaunch pal = 1470 new PendingActivityLaunch(r, sourceRecord, startFlags, stack); 1471 mPendingActivityLaunches.add(pal); 1472 ActivityOptions.abort(options); 1473 return ActivityManager.START_SWITCHES_CANCELED; 1474 } 1475 } 1476 1477 if (mService.mDidAppSwitch) { 1478 // This is the second allowed switch since we stopped switches, 1479 // so now just generally allow switches. Use case: user presses 1480 // home (switches disabled, switch to home, mDidAppSwitch now true); 1481 // user taps a home icon (coming from home so allowed, we hit here 1482 // and now allow anyone to switch again). 1483 mService.mAppSwitchesAllowedTime = 0; 1484 } else { 1485 mService.mDidAppSwitch = true; 1486 } 1487 1488 doPendingActivityLaunchesLocked(false); 1489 1490 err = startActivityUncheckedLocked(r, sourceRecord, voiceSession, voiceInteractor, 1491 startFlags, true, options, inTask); 1492 1493 if (err < 0) { 1494 // If someone asked to have the keyguard dismissed on the next 1495 // activity start, but we are not actually doing an activity 1496 // switch... just dismiss the keyguard now, because we 1497 // probably want to see whatever is behind it. 1498 notifyActivityDrawnForKeyguard(); 1499 } 1500 return err; 1501 } 1502 1503 ActivityStack adjustStackFocus(ActivityRecord r, boolean newTask) { 1504 final TaskRecord task = r.task; 1505 1506 // On leanback only devices we should keep all activities in the same stack. 1507 if (!mLeanbackOnlyDevice && 1508 (r.isApplicationActivity() || (task != null && task.isApplicationTask()))) { 1509 if (task != null) { 1510 final ActivityStack taskStack = task.stack; 1511 if (taskStack.isOnHomeDisplay()) { 1512 if (mFocusedStack != taskStack) { 1513 if (DEBUG_FOCUS || DEBUG_STACK) Slog.d(TAG, "adjustStackFocus: Setting " + 1514 "focused stack to r=" + r + " task=" + task); 1515 mFocusedStack = taskStack; 1516 } else { 1517 if (DEBUG_FOCUS || DEBUG_STACK) Slog.d(TAG, 1518 "adjustStackFocus: Focused stack already=" + mFocusedStack); 1519 } 1520 } 1521 return taskStack; 1522 } 1523 1524 final ActivityContainer container = r.mInitialActivityContainer; 1525 if (container != null) { 1526 // The first time put it on the desired stack, after this put on task stack. 1527 r.mInitialActivityContainer = null; 1528 return container.mStack; 1529 } 1530 1531 if (mFocusedStack != mHomeStack && (!newTask || 1532 mFocusedStack.mActivityContainer.isEligibleForNewTasks())) { 1533 if (DEBUG_FOCUS || DEBUG_STACK) Slog.d(TAG, 1534 "adjustStackFocus: Have a focused stack=" + mFocusedStack); 1535 return mFocusedStack; 1536 } 1537 1538 final ArrayList<ActivityStack> homeDisplayStacks = mHomeStack.mStacks; 1539 for (int stackNdx = homeDisplayStacks.size() - 1; stackNdx >= 0; --stackNdx) { 1540 final ActivityStack stack = homeDisplayStacks.get(stackNdx); 1541 if (!stack.isHomeStack()) { 1542 if (DEBUG_FOCUS || DEBUG_STACK) Slog.d(TAG, 1543 "adjustStackFocus: Setting focused stack=" + stack); 1544 mFocusedStack = stack; 1545 return mFocusedStack; 1546 } 1547 } 1548 1549 // Need to create an app stack for this user. 1550 int stackId = createStackOnDisplay(getNextStackId(), Display.DEFAULT_DISPLAY); 1551 if (DEBUG_FOCUS || DEBUG_STACK) Slog.d(TAG, "adjustStackFocus: New stack r=" + r + 1552 " stackId=" + stackId); 1553 mFocusedStack = getStack(stackId); 1554 return mFocusedStack; 1555 } 1556 return mHomeStack; 1557 } 1558 1559 void setFocusedStack(ActivityRecord r) { 1560 if (r != null) { 1561 final TaskRecord task = r.task; 1562 boolean isHomeActivity = !r.isApplicationActivity(); 1563 if (!isHomeActivity && task != null) { 1564 isHomeActivity = !task.isApplicationTask(); 1565 } 1566 if (!isHomeActivity && task != null) { 1567 final ActivityRecord parent = task.stack.mActivityContainer.mParentActivity; 1568 isHomeActivity = parent != null && parent.isHomeActivity(); 1569 } 1570 moveHomeStack(isHomeActivity); 1571 } 1572 } 1573 1574 final int startActivityUncheckedLocked(ActivityRecord r, ActivityRecord sourceRecord, 1575 IVoiceInteractionSession voiceSession, IVoiceInteractor voiceInteractor, int startFlags, 1576 boolean doResume, Bundle options, TaskRecord inTask) { 1577 final Intent intent = r.intent; 1578 final int callingUid = r.launchedFromUid; 1579 1580 // In some flows in to this function, we retrieve the task record and hold on to it 1581 // without a lock before calling back in to here... so the task at this point may 1582 // not actually be in recents. Check for that, and if it isn't in recents just 1583 // consider it invalid. 1584 if (inTask != null && !inTask.inRecents) { 1585 Slog.w(TAG, "Starting activity in task not in recents: " + inTask); 1586 inTask = null; 1587 } 1588 1589 final boolean launchSingleTop = r.launchMode == ActivityInfo.LAUNCH_SINGLE_TOP; 1590 final boolean launchSingleInstance = r.launchMode == ActivityInfo.LAUNCH_SINGLE_INSTANCE; 1591 final boolean launchSingleTask = r.launchMode == ActivityInfo.LAUNCH_SINGLE_TASK; 1592 1593 int launchFlags = intent.getFlags(); 1594 if ((launchFlags & Intent.FLAG_ACTIVITY_NEW_DOCUMENT) != 0 && 1595 (launchSingleInstance || launchSingleTask)) { 1596 // We have a conflict between the Intent and the Activity manifest, manifest wins. 1597 Slog.i(TAG, "Ignoring FLAG_ACTIVITY_NEW_DOCUMENT, launchMode is " + 1598 "\"singleInstance\" or \"singleTask\""); 1599 launchFlags &= 1600 ~(Intent.FLAG_ACTIVITY_NEW_DOCUMENT | Intent.FLAG_ACTIVITY_MULTIPLE_TASK); 1601 } else { 1602 switch (r.info.documentLaunchMode) { 1603 case ActivityInfo.DOCUMENT_LAUNCH_NONE: 1604 break; 1605 case ActivityInfo.DOCUMENT_LAUNCH_INTO_EXISTING: 1606 launchFlags |= Intent.FLAG_ACTIVITY_NEW_DOCUMENT; 1607 break; 1608 case ActivityInfo.DOCUMENT_LAUNCH_ALWAYS: 1609 launchFlags |= Intent.FLAG_ACTIVITY_NEW_DOCUMENT; 1610 break; 1611 case ActivityInfo.DOCUMENT_LAUNCH_NEVER: 1612 launchFlags &= ~Intent.FLAG_ACTIVITY_MULTIPLE_TASK; 1613 break; 1614 } 1615 } 1616 1617 final boolean launchTaskBehind = r.mLaunchTaskBehind 1618 && !launchSingleTask && !launchSingleInstance 1619 && (launchFlags & Intent.FLAG_ACTIVITY_NEW_DOCUMENT) != 0; 1620 1621 if (r.resultTo != null && (launchFlags & Intent.FLAG_ACTIVITY_NEW_TASK) != 0) { 1622 // For whatever reason this activity is being launched into a new 1623 // task... yet the caller has requested a result back. Well, that 1624 // is pretty messed up, so instead immediately send back a cancel 1625 // and let the new task continue launched as normal without a 1626 // dependency on its originator. 1627 Slog.w(TAG, "Activity is launching as a new task, so cancelling activity result."); 1628 r.resultTo.task.stack.sendActivityResultLocked(-1, 1629 r.resultTo, r.resultWho, r.requestCode, 1630 Activity.RESULT_CANCELED, null); 1631 r.resultTo = null; 1632 } 1633 1634 if ((launchFlags & Intent.FLAG_ACTIVITY_NEW_DOCUMENT) != 0 && r.resultTo == null) { 1635 launchFlags |= Intent.FLAG_ACTIVITY_NEW_TASK; 1636 } 1637 1638 // If we are actually going to launch in to a new task, there are some cases where 1639 // we further want to do multiple task. 1640 if ((launchFlags & Intent.FLAG_ACTIVITY_NEW_TASK) != 0) { 1641 if (launchTaskBehind 1642 || r.info.documentLaunchMode == ActivityInfo.DOCUMENT_LAUNCH_ALWAYS) { 1643 launchFlags |= Intent.FLAG_ACTIVITY_MULTIPLE_TASK; 1644 } 1645 } 1646 1647 // We'll invoke onUserLeaving before onPause only if the launching 1648 // activity did not explicitly state that this is an automated launch. 1649 mUserLeaving = (launchFlags & Intent.FLAG_ACTIVITY_NO_USER_ACTION) == 0; 1650 if (DEBUG_USER_LEAVING) Slog.v(TAG, "startActivity() => mUserLeaving=" + mUserLeaving); 1651 1652 // If the caller has asked not to resume at this point, we make note 1653 // of this in the record so that we can skip it when trying to find 1654 // the top running activity. 1655 if (!doResume) { 1656 r.delayedResume = true; 1657 } 1658 1659 ActivityRecord notTop = 1660 (launchFlags & Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOP) != 0 ? r : null; 1661 1662 // If the onlyIfNeeded flag is set, then we can do this if the activity 1663 // being launched is the same as the one making the call... or, as 1664 // a special case, if we do not know the caller then we count the 1665 // current top activity as the caller. 1666 if ((startFlags&ActivityManager.START_FLAG_ONLY_IF_NEEDED) != 0) { 1667 ActivityRecord checkedCaller = sourceRecord; 1668 if (checkedCaller == null) { 1669 checkedCaller = getFocusedStack().topRunningNonDelayedActivityLocked(notTop); 1670 } 1671 if (!checkedCaller.realActivity.equals(r.realActivity)) { 1672 // Caller is not the same as launcher, so always needed. 1673 startFlags &= ~ActivityManager.START_FLAG_ONLY_IF_NEEDED; 1674 } 1675 } 1676 1677 boolean addingToTask = false; 1678 TaskRecord reuseTask = null; 1679 1680 // If the caller is not coming from another activity, but has given us an 1681 // explicit task into which they would like us to launch the new activity, 1682 // then let's see about doing that. 1683 if (sourceRecord == null && inTask != null && inTask.stack != null) { 1684 final Intent baseIntent = inTask.getBaseIntent(); 1685 final ActivityRecord root = inTask.getRootActivity(); 1686 if (baseIntent == null) { 1687 ActivityOptions.abort(options); 1688 throw new IllegalArgumentException("Launching into task without base intent: " 1689 + inTask); 1690 } 1691 1692 // If this task is empty, then we are adding the first activity -- it 1693 // determines the root, and must be launching as a NEW_TASK. 1694 if (launchSingleInstance || launchSingleTask) { 1695 if (!baseIntent.getComponent().equals(r.intent.getComponent())) { 1696 ActivityOptions.abort(options); 1697 throw new IllegalArgumentException("Trying to launch singleInstance/Task " 1698 + r + " into different task " + inTask); 1699 } 1700 if (root != null) { 1701 ActivityOptions.abort(options); 1702 throw new IllegalArgumentException("Caller with inTask " + inTask 1703 + " has root " + root + " but target is singleInstance/Task"); 1704 } 1705 } 1706 1707 // If task is empty, then adopt the interesting intent launch flags in to the 1708 // activity being started. 1709 if (root == null) { 1710 final int flagsOfInterest = Intent.FLAG_ACTIVITY_NEW_TASK 1711 | Intent.FLAG_ACTIVITY_MULTIPLE_TASK | Intent.FLAG_ACTIVITY_NEW_DOCUMENT 1712 | Intent.FLAG_ACTIVITY_RETAIN_IN_RECENTS; 1713 launchFlags = (launchFlags&~flagsOfInterest) 1714 | (baseIntent.getFlags()&flagsOfInterest); 1715 intent.setFlags(launchFlags); 1716 inTask.setIntent(r); 1717 addingToTask = true; 1718 1719 // If the task is not empty and the caller is asking to start it as the root 1720 // of a new task, then we don't actually want to start this on the task. We 1721 // will bring the task to the front, and possibly give it a new intent. 1722 } else if ((launchFlags & Intent.FLAG_ACTIVITY_NEW_TASK) != 0) { 1723 addingToTask = false; 1724 1725 } else { 1726 addingToTask = true; 1727 } 1728 1729 reuseTask = inTask; 1730 } else { 1731 inTask = null; 1732 } 1733 1734 if (inTask == null) { 1735 if (sourceRecord == null) { 1736 // This activity is not being started from another... in this 1737 // case we -always- start a new task. 1738 if ((launchFlags & Intent.FLAG_ACTIVITY_NEW_TASK) == 0 && inTask == null) { 1739 Slog.w(TAG, "startActivity called from non-Activity context; forcing " + 1740 "Intent.FLAG_ACTIVITY_NEW_TASK for: " + intent); 1741 launchFlags |= Intent.FLAG_ACTIVITY_NEW_TASK; 1742 } 1743 } else if (sourceRecord.launchMode == ActivityInfo.LAUNCH_SINGLE_INSTANCE) { 1744 // The original activity who is starting us is running as a single 1745 // instance... this new activity it is starting must go on its 1746 // own task. 1747 launchFlags |= Intent.FLAG_ACTIVITY_NEW_TASK; 1748 } else if (launchSingleInstance || launchSingleTask) { 1749 // The activity being started is a single instance... it always 1750 // gets launched into its own task. 1751 launchFlags |= Intent.FLAG_ACTIVITY_NEW_TASK; 1752 } 1753 } 1754 1755 ActivityInfo newTaskInfo = null; 1756 Intent newTaskIntent = null; 1757 ActivityStack sourceStack; 1758 if (sourceRecord != null) { 1759 if (sourceRecord.finishing) { 1760 // If the source is finishing, we can't further count it as our source. This 1761 // is because the task it is associated with may now be empty and on its way out, 1762 // so we don't want to blindly throw it in to that task. Instead we will take 1763 // the NEW_TASK flow and try to find a task for it. But save the task information 1764 // so it can be used when creating the new task. 1765 if ((launchFlags & Intent.FLAG_ACTIVITY_NEW_TASK) == 0) { 1766 Slog.w(TAG, "startActivity called from finishing " + sourceRecord 1767 + "; forcing " + "Intent.FLAG_ACTIVITY_NEW_TASK for: " + intent); 1768 launchFlags |= Intent.FLAG_ACTIVITY_NEW_TASK; 1769 newTaskInfo = sourceRecord.info; 1770 newTaskIntent = sourceRecord.task.intent; 1771 } 1772 sourceRecord = null; 1773 sourceStack = null; 1774 } else { 1775 sourceStack = sourceRecord.task.stack; 1776 } 1777 } else { 1778 sourceStack = null; 1779 } 1780 1781 boolean movedHome = false; 1782 ActivityStack targetStack; 1783 1784 intent.setFlags(launchFlags); 1785 1786 // We may want to try to place the new activity in to an existing task. We always 1787 // do this if the target activity is singleTask or singleInstance; we will also do 1788 // this if NEW_TASK has been requested, and there is not an additional qualifier telling 1789 // us to still place it in a new task: multi task, always doc mode, or being asked to 1790 // launch this as a new task behind the current one. 1791 if (((launchFlags & Intent.FLAG_ACTIVITY_NEW_TASK) != 0 && 1792 (launchFlags & Intent.FLAG_ACTIVITY_MULTIPLE_TASK) == 0) 1793 || launchSingleInstance || launchSingleTask) { 1794 // If bring to front is requested, and no result is requested and we have not 1795 // been given an explicit task to launch in to, and 1796 // we can find a task that was started with this same 1797 // component, then instead of launching bring that one to the front. 1798 if (inTask == null && r.resultTo == null) { 1799 // See if there is a task to bring to the front. If this is 1800 // a SINGLE_INSTANCE activity, there can be one and only one 1801 // instance of it in the history, and it is always in its own 1802 // unique task, so we do a special search. 1803 ActivityRecord intentActivity = !launchSingleInstance ? 1804 findTaskLocked(r) : findActivityLocked(intent, r.info); 1805 if (intentActivity != null) { 1806 if (isLockTaskModeViolation(intentActivity.task)) { 1807 showLockTaskToast(); 1808 Slog.e(TAG, "startActivityUnchecked: Attempt to violate Lock Task Mode"); 1809 return ActivityManager.START_RETURN_LOCK_TASK_MODE_VIOLATION; 1810 } 1811 if (r.task == null) { 1812 r.task = intentActivity.task; 1813 } 1814 targetStack = intentActivity.task.stack; 1815 targetStack.mLastPausedActivity = null; 1816 if (DEBUG_TASKS) Slog.d(TAG, "Bring to front target: " + targetStack 1817 + " from " + intentActivity); 1818 targetStack.moveToFront(); 1819 if (intentActivity.task.intent == null) { 1820 // This task was started because of movement of 1821 // the activity based on affinity... now that we 1822 // are actually launching it, we can assign the 1823 // base intent. 1824 intentActivity.task.setIntent(r); 1825 } 1826 // If the target task is not in the front, then we need 1827 // to bring it to the front... except... well, with 1828 // SINGLE_TASK_LAUNCH it's not entirely clear. We'd like 1829 // to have the same behavior as if a new instance was 1830 // being started, which means not bringing it to the front 1831 // if the caller is not itself in the front. 1832 final ActivityStack lastStack = getLastStack(); 1833 ActivityRecord curTop = lastStack == null? 1834 null : lastStack.topRunningNonDelayedActivityLocked(notTop); 1835 if (curTop != null && (curTop.task != intentActivity.task || 1836 curTop.task != lastStack.topTask())) { 1837 r.intent.addFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT); 1838 if (sourceRecord == null || (sourceStack.topActivity() != null && 1839 sourceStack.topActivity().task == sourceRecord.task)) { 1840 // We really do want to push this one into the 1841 // user's face, right now. 1842 if (launchTaskBehind && sourceRecord != null) { 1843 intentActivity.setTaskToAffiliateWith(sourceRecord.task); 1844 } 1845 movedHome = true; 1846 targetStack.moveTaskToFrontLocked(intentActivity.task, r, options); 1847 if ((launchFlags & 1848 (FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_TASK_ON_HOME)) 1849 == (FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_TASK_ON_HOME)) { 1850 // Caller wants to appear on home activity. 1851 intentActivity.task.setTaskToReturnTo(HOME_ACTIVITY_TYPE); 1852 } 1853 options = null; 1854 } 1855 } 1856 // If the caller has requested that the target task be 1857 // reset, then do so. 1858 if ((launchFlags&Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED) != 0) { 1859 intentActivity = targetStack.resetTaskIfNeededLocked(intentActivity, r); 1860 } 1861 if ((startFlags&ActivityManager.START_FLAG_ONLY_IF_NEEDED) != 0) { 1862 // We don't need to start a new activity, and 1863 // the client said not to do anything if that 1864 // is the case, so this is it! And for paranoia, make 1865 // sure we have correctly resumed the top activity. 1866 if (doResume) { 1867 resumeTopActivitiesLocked(targetStack, null, options); 1868 } else { 1869 ActivityOptions.abort(options); 1870 } 1871 return ActivityManager.START_RETURN_INTENT_TO_CALLER; 1872 } 1873 if ((launchFlags & 1874 (Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TASK)) 1875 == (Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TASK)) { 1876 // The caller has requested to completely replace any 1877 // existing task with its new activity. Well that should 1878 // not be too hard... 1879 reuseTask = intentActivity.task; 1880 reuseTask.performClearTaskLocked(); 1881 reuseTask.setIntent(r); 1882 } else if ((launchFlags&Intent.FLAG_ACTIVITY_CLEAR_TOP) != 0 1883 || launchSingleInstance || launchSingleTask) { 1884 // In this situation we want to remove all activities 1885 // from the task up to the one being started. In most 1886 // cases this means we are resetting the task to its 1887 // initial state. 1888 ActivityRecord top = 1889 intentActivity.task.performClearTaskLocked(r, launchFlags); 1890 if (top != null) { 1891 if (top.frontOfTask) { 1892 // Activity aliases may mean we use different 1893 // intents for the top activity, so make sure 1894 // the task now has the identity of the new 1895 // intent. 1896 top.task.setIntent(r); 1897 } 1898 ActivityStack.logStartActivity(EventLogTags.AM_NEW_INTENT, 1899 r, top.task); 1900 top.deliverNewIntentLocked(callingUid, r.intent); 1901 } else { 1902 // A special case: we need to 1903 // start the activity because it is not currently 1904 // running, and the caller has asked to clear the 1905 // current task to have this activity at the top. 1906 addingToTask = true; 1907 // Now pretend like this activity is being started 1908 // by the top of its task, so it is put in the 1909 // right place. 1910 sourceRecord = intentActivity; 1911 } 1912 } else if (r.realActivity.equals(intentActivity.task.realActivity)) { 1913 // In this case the top activity on the task is the 1914 // same as the one being launched, so we take that 1915 // as a request to bring the task to the foreground. 1916 // If the top activity in the task is the root 1917 // activity, deliver this new intent to it if it 1918 // desires. 1919 if (((launchFlags&Intent.FLAG_ACTIVITY_SINGLE_TOP) != 0 || launchSingleTop) 1920 && intentActivity.realActivity.equals(r.realActivity)) { 1921 ActivityStack.logStartActivity(EventLogTags.AM_NEW_INTENT, r, 1922 intentActivity.task); 1923 if (intentActivity.frontOfTask) { 1924 intentActivity.task.setIntent(r); 1925 } 1926 intentActivity.deliverNewIntentLocked(callingUid, r.intent); 1927 } else if (!r.intent.filterEquals(intentActivity.task.intent)) { 1928 // In this case we are launching the root activity 1929 // of the task, but with a different intent. We 1930 // should start a new instance on top. 1931 addingToTask = true; 1932 sourceRecord = intentActivity; 1933 } 1934 } else if ((launchFlags&Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED) == 0) { 1935 // In this case an activity is being launched in to an 1936 // existing task, without resetting that task. This 1937 // is typically the situation of launching an activity 1938 // from a notification or shortcut. We want to place 1939 // the new activity on top of the current task. 1940 addingToTask = true; 1941 sourceRecord = intentActivity; 1942 } else if (!intentActivity.task.rootWasReset) { 1943 // In this case we are launching in to an existing task 1944 // that has not yet been started from its front door. 1945 // The current task has been brought to the front. 1946 // Ideally, we'd probably like to place this new task 1947 // at the bottom of its stack, but that's a little hard 1948 // to do with the current organization of the code so 1949 // for now we'll just drop it. 1950 intentActivity.task.setIntent(r); 1951 } 1952 if (!addingToTask && reuseTask == null) { 1953 // We didn't do anything... but it was needed (a.k.a., client 1954 // don't use that intent!) And for paranoia, make 1955 // sure we have correctly resumed the top activity. 1956 if (doResume) { 1957 targetStack.resumeTopActivityLocked(null, options); 1958 } else { 1959 ActivityOptions.abort(options); 1960 } 1961 return ActivityManager.START_TASK_TO_FRONT; 1962 } 1963 } 1964 } 1965 } 1966 1967 //String uri = r.intent.toURI(); 1968 //Intent intent2 = new Intent(uri); 1969 //Slog.i(TAG, "Given intent: " + r.intent); 1970 //Slog.i(TAG, "URI is: " + uri); 1971 //Slog.i(TAG, "To intent: " + intent2); 1972 1973 if (r.packageName != null) { 1974 // If the activity being launched is the same as the one currently 1975 // at the top, then we need to check if it should only be launched 1976 // once. 1977 ActivityStack topStack = getFocusedStack(); 1978 ActivityRecord top = topStack.topRunningNonDelayedActivityLocked(notTop); 1979 if (top != null && r.resultTo == null) { 1980 if (top.realActivity.equals(r.realActivity) && top.userId == r.userId) { 1981 if (top.app != null && top.app.thread != null) { 1982 if ((launchFlags & Intent.FLAG_ACTIVITY_SINGLE_TOP) != 0 1983 || launchSingleTop || launchSingleTask) { 1984 ActivityStack.logStartActivity(EventLogTags.AM_NEW_INTENT, top, 1985 top.task); 1986 // For paranoia, make sure we have correctly 1987 // resumed the top activity. 1988 topStack.mLastPausedActivity = null; 1989 if (doResume) { 1990 resumeTopActivitiesLocked(); 1991 } 1992 ActivityOptions.abort(options); 1993 if ((startFlags&ActivityManager.START_FLAG_ONLY_IF_NEEDED) != 0) { 1994 // We don't need to start a new activity, and 1995 // the client said not to do anything if that 1996 // is the case, so this is it! 1997 return ActivityManager.START_RETURN_INTENT_TO_CALLER; 1998 } 1999 top.deliverNewIntentLocked(callingUid, r.intent); 2000 return ActivityManager.START_DELIVERED_TO_TOP; 2001 } 2002 } 2003 } 2004 } 2005 2006 } else { 2007 if (r.resultTo != null) { 2008 r.resultTo.task.stack.sendActivityResultLocked(-1, r.resultTo, r.resultWho, 2009 r.requestCode, Activity.RESULT_CANCELED, null); 2010 } 2011 ActivityOptions.abort(options); 2012 return ActivityManager.START_CLASS_NOT_FOUND; 2013 } 2014 2015 boolean newTask = false; 2016 boolean keepCurTransition = false; 2017 2018 TaskRecord taskToAffiliate = launchTaskBehind && sourceRecord != null ? 2019 sourceRecord.task : null; 2020 2021 // Should this be considered a new task? 2022 if (r.resultTo == null && inTask == null && !addingToTask 2023 && (launchFlags & Intent.FLAG_ACTIVITY_NEW_TASK) != 0) { 2024 if (isLockTaskModeViolation(reuseTask)) { 2025 Slog.e(TAG, "Attempted Lock Task Mode violation r=" + r); 2026 return ActivityManager.START_RETURN_LOCK_TASK_MODE_VIOLATION; 2027 } 2028 newTask = true; 2029 targetStack = adjustStackFocus(r, newTask); 2030 if (!launchTaskBehind) { 2031 targetStack.moveToFront(); 2032 } 2033 if (reuseTask == null) { 2034 r.setTask(targetStack.createTaskRecord(getNextTaskId(), 2035 newTaskInfo != null ? newTaskInfo : r.info, 2036 newTaskIntent != null ? newTaskIntent : intent, 2037 voiceSession, voiceInteractor, !launchTaskBehind /* toTop */), 2038 taskToAffiliate); 2039 if (DEBUG_TASKS) Slog.v(TAG, "Starting new activity " + r + " in new task " + 2040 r.task); 2041 } else { 2042 r.setTask(reuseTask, taskToAffiliate); 2043 } 2044 if (!movedHome) { 2045 if ((launchFlags & 2046 (Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_TASK_ON_HOME)) 2047 == (Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_TASK_ON_HOME)) { 2048 // Caller wants to appear on home activity, so before starting 2049 // their own activity we will bring home to the front. 2050 r.task.setTaskToReturnTo(HOME_ACTIVITY_TYPE); 2051 } 2052 } 2053 } else if (sourceRecord != null) { 2054 final TaskRecord sourceTask = sourceRecord.task; 2055 if (isLockTaskModeViolation(sourceTask)) { 2056 Slog.e(TAG, "Attempted Lock Task Mode violation r=" + r); 2057 return ActivityManager.START_RETURN_LOCK_TASK_MODE_VIOLATION; 2058 } 2059 targetStack = sourceTask.stack; 2060 targetStack.moveToFront(); 2061 mWindowManager.moveTaskToTop(targetStack.topTask().taskId); 2062 if (!addingToTask && (launchFlags&Intent.FLAG_ACTIVITY_CLEAR_TOP) != 0) { 2063 // In this case, we are adding the activity to an existing 2064 // task, but the caller has asked to clear that task if the 2065 // activity is already running. 2066 ActivityRecord top = sourceTask.performClearTaskLocked(r, launchFlags); 2067 keepCurTransition = true; 2068 if (top != null) { 2069 ActivityStack.logStartActivity(EventLogTags.AM_NEW_INTENT, r, top.task); 2070 top.deliverNewIntentLocked(callingUid, r.intent); 2071 // For paranoia, make sure we have correctly 2072 // resumed the top activity. 2073 targetStack.mLastPausedActivity = null; 2074 if (doResume) { 2075 targetStack.resumeTopActivityLocked(null); 2076 } 2077 ActivityOptions.abort(options); 2078 return ActivityManager.START_DELIVERED_TO_TOP; 2079 } 2080 } else if (!addingToTask && 2081 (launchFlags&Intent.FLAG_ACTIVITY_REORDER_TO_FRONT) != 0) { 2082 // In this case, we are launching an activity in our own task 2083 // that may already be running somewhere in the history, and 2084 // we want to shuffle it to the front of the stack if so. 2085 final ActivityRecord top = sourceTask.findActivityInHistoryLocked(r); 2086 if (top != null) { 2087 final TaskRecord task = top.task; 2088 task.moveActivityToFrontLocked(top); 2089 ActivityStack.logStartActivity(EventLogTags.AM_NEW_INTENT, r, task); 2090 top.updateOptionsLocked(options); 2091 top.deliverNewIntentLocked(callingUid, r.intent); 2092 targetStack.mLastPausedActivity = null; 2093 if (doResume) { 2094 targetStack.resumeTopActivityLocked(null); 2095 } 2096 return ActivityManager.START_DELIVERED_TO_TOP; 2097 } 2098 } 2099 // An existing activity is starting this new activity, so we want 2100 // to keep the new one in the same task as the one that is starting 2101 // it. 2102 r.setTask(sourceTask, null); 2103 if (DEBUG_TASKS) Slog.v(TAG, "Starting new activity " + r 2104 + " in existing task " + r.task + " from source " + sourceRecord); 2105 2106 } else if (inTask != null) { 2107 // The calling is asking that the new activity be started in an explicit 2108 // task it has provided to us. 2109 if (isLockTaskModeViolation(inTask)) { 2110 Slog.e(TAG, "Attempted Lock Task Mode violation r=" + r); 2111 return ActivityManager.START_RETURN_LOCK_TASK_MODE_VIOLATION; 2112 } 2113 targetStack = inTask.stack; 2114 targetStack.moveTaskToFrontLocked(inTask, r, options); 2115 targetStack.moveToFront(); 2116 mWindowManager.moveTaskToTop(inTask.taskId); 2117 2118 // Check whether we should actually launch the new activity in to the task, 2119 // or just reuse the current activity on top. 2120 ActivityRecord top = inTask.getTopActivity(); 2121 if (top != null && top.realActivity.equals(r.realActivity) && top.userId == r.userId) { 2122 if ((launchFlags & Intent.FLAG_ACTIVITY_SINGLE_TOP) != 0 2123 || launchSingleTop || launchSingleTask) { 2124 ActivityStack.logStartActivity(EventLogTags.AM_NEW_INTENT, top, top.task); 2125 if ((startFlags&ActivityManager.START_FLAG_ONLY_IF_NEEDED) != 0) { 2126 // We don't need to start a new activity, and 2127 // the client said not to do anything if that 2128 // is the case, so this is it! 2129 return ActivityManager.START_RETURN_INTENT_TO_CALLER; 2130 } 2131 top.deliverNewIntentLocked(callingUid, r.intent); 2132 return ActivityManager.START_DELIVERED_TO_TOP; 2133 } 2134 } 2135 2136 if (!addingToTask) { 2137 // We don't actually want to have this activity added to the task, so just 2138 // stop here but still tell the caller that we consumed the intent. 2139 ActivityOptions.abort(options); 2140 return ActivityManager.START_TASK_TO_FRONT; 2141 } 2142 2143 r.setTask(inTask, null); 2144 if (DEBUG_TASKS) Slog.v(TAG, "Starting new activity " + r 2145 + " in explicit task " + r.task); 2146 2147 } else { 2148 // This not being started from an existing activity, and not part 2149 // of a new task... just put it in the top task, though these days 2150 // this case should never happen. 2151 targetStack = adjustStackFocus(r, newTask); 2152 targetStack.moveToFront(); 2153 ActivityRecord prev = targetStack.topActivity(); 2154 r.setTask(prev != null ? prev.task : targetStack.createTaskRecord(getNextTaskId(), 2155 r.info, intent, null, null, true), null); 2156 mWindowManager.moveTaskToTop(r.task.taskId); 2157 if (DEBUG_TASKS) Slog.v(TAG, "Starting new activity " + r 2158 + " in new guessed " + r.task); 2159 } 2160 2161 mService.grantUriPermissionFromIntentLocked(callingUid, r.packageName, 2162 intent, r.getUriPermissionsLocked(), r.userId); 2163 2164 if (sourceRecord != null && sourceRecord.isRecentsActivity()) { 2165 r.task.setTaskToReturnTo(RECENTS_ACTIVITY_TYPE); 2166 } 2167 if (newTask) { 2168 EventLog.writeEvent(EventLogTags.AM_CREATE_TASK, r.userId, r.task.taskId); 2169 } 2170 ActivityStack.logStartActivity(EventLogTags.AM_CREATE_ACTIVITY, r, r.task); 2171 targetStack.mLastPausedActivity = null; 2172 targetStack.startActivityLocked(r, newTask, doResume, keepCurTransition, options); 2173 if (!launchTaskBehind) { 2174 // Don't set focus on an activity that's going to the back. 2175 mService.setFocusedActivityLocked(r); 2176 } 2177 return ActivityManager.START_SUCCESS; 2178 } 2179 2180 final void doPendingActivityLaunchesLocked(boolean doResume) { 2181 while (!mPendingActivityLaunches.isEmpty()) { 2182 PendingActivityLaunch pal = mPendingActivityLaunches.remove(0); 2183 startActivityUncheckedLocked(pal.r, pal.sourceRecord, null, null, pal.startFlags, 2184 doResume && mPendingActivityLaunches.isEmpty(), null, null); 2185 } 2186 } 2187 2188 void removePendingActivityLaunchesLocked(ActivityStack stack) { 2189 for (int palNdx = mPendingActivityLaunches.size() - 1; palNdx >= 0; --palNdx) { 2190 PendingActivityLaunch pal = mPendingActivityLaunches.get(palNdx); 2191 if (pal.stack == stack) { 2192 mPendingActivityLaunches.remove(palNdx); 2193 } 2194 } 2195 } 2196 2197 void acquireLaunchWakelock() { 2198 if (VALIDATE_WAKE_LOCK_CALLER && Binder.getCallingUid() != Process.myUid()) { 2199 throw new IllegalStateException("Calling must be system uid"); 2200 } 2201 mLaunchingActivity.acquire(); 2202 if (!mHandler.hasMessages(LAUNCH_TIMEOUT_MSG)) { 2203 // To be safe, don't allow the wake lock to be held for too long. 2204 mHandler.sendEmptyMessageDelayed(LAUNCH_TIMEOUT_MSG, LAUNCH_TIMEOUT); 2205 } 2206 } 2207 2208 // Checked. 2209 final ActivityRecord activityIdleInternalLocked(final IBinder token, boolean fromTimeout, 2210 Configuration config) { 2211 if (localLOGV) Slog.v(TAG, "Activity idle: " + token); 2212 2213 ArrayList<ActivityRecord> stops = null; 2214 ArrayList<ActivityRecord> finishes = null; 2215 ArrayList<UserStartedState> startingUsers = null; 2216 int NS = 0; 2217 int NF = 0; 2218 boolean booting = false; 2219 boolean enableScreen = false; 2220 boolean activityRemoved = false; 2221 2222 ActivityRecord r = ActivityRecord.forToken(token); 2223 if (r != null) { 2224 if (DEBUG_IDLE) Slog.d(TAG, "activityIdleInternalLocked: Callers=" + 2225 Debug.getCallers(4)); 2226 mHandler.removeMessages(IDLE_TIMEOUT_MSG, r); 2227 r.finishLaunchTickingLocked(); 2228 if (fromTimeout) { 2229 reportActivityLaunchedLocked(fromTimeout, r, -1, -1); 2230 } 2231 2232 // This is a hack to semi-deal with a race condition 2233 // in the client where it can be constructed with a 2234 // newer configuration from when we asked it to launch. 2235 // We'll update with whatever configuration it now says 2236 // it used to launch. 2237 if (config != null) { 2238 r.configuration = config; 2239 } 2240 2241 // We are now idle. If someone is waiting for a thumbnail from 2242 // us, we can now deliver. 2243 r.idle = true; 2244 2245 //Slog.i(TAG, "IDLE: mBooted=" + mBooted + ", fromTimeout=" + fromTimeout); 2246 if (!mService.mBooted && isFrontStack(r.task.stack)) { 2247 mService.mBooted = true; 2248 enableScreen = true; 2249 } 2250 } 2251 2252 if (allResumedActivitiesIdle()) { 2253 if (r != null) { 2254 mService.scheduleAppGcsLocked(); 2255 } 2256 2257 if (mLaunchingActivity.isHeld()) { 2258 mHandler.removeMessages(LAUNCH_TIMEOUT_MSG); 2259 if (VALIDATE_WAKE_LOCK_CALLER && 2260 Binder.getCallingUid() != Process.myUid()) { 2261 throw new IllegalStateException("Calling must be system uid"); 2262 } 2263 mLaunchingActivity.release(); 2264 } 2265 ensureActivitiesVisibleLocked(null, 0); 2266 } 2267 2268 // Atomically retrieve all of the other things to do. 2269 stops = processStoppingActivitiesLocked(true); 2270 NS = stops != null ? stops.size() : 0; 2271 if ((NF=mFinishingActivities.size()) > 0) { 2272 finishes = new ArrayList<ActivityRecord>(mFinishingActivities); 2273 mFinishingActivities.clear(); 2274 } 2275 2276 booting = mService.mBooting; 2277 mService.mBooting = false; 2278 2279 if (mStartingUsers.size() > 0) { 2280 startingUsers = new ArrayList<UserStartedState>(mStartingUsers); 2281 mStartingUsers.clear(); 2282 } 2283 2284 // Stop any activities that are scheduled to do so but have been 2285 // waiting for the next one to start. 2286 for (int i = 0; i < NS; i++) { 2287 r = stops.get(i); 2288 final ActivityStack stack = r.task.stack; 2289 if (r.finishing) { 2290 stack.finishCurrentActivityLocked(r, ActivityStack.FINISH_IMMEDIATELY, false); 2291 } else { 2292 stack.stopActivityLocked(r); 2293 } 2294 } 2295 2296 // Finish any activities that are scheduled to do so but have been 2297 // waiting for the next one to start. 2298 for (int i = 0; i < NF; i++) { 2299 r = finishes.get(i); 2300 activityRemoved |= r.task.stack.destroyActivityLocked(r, true, "finish-idle"); 2301 } 2302 2303 if (!booting) { 2304 // Complete user switch 2305 if (startingUsers != null) { 2306 for (int i = 0; i < startingUsers.size(); i++) { 2307 mService.finishUserSwitch(startingUsers.get(i)); 2308 } 2309 } 2310 // Complete starting up of background users 2311 if (mStartingBackgroundUsers.size() > 0) { 2312 startingUsers = new ArrayList<UserStartedState>(mStartingBackgroundUsers); 2313 mStartingBackgroundUsers.clear(); 2314 for (int i = 0; i < startingUsers.size(); i++) { 2315 mService.finishUserBoot(startingUsers.get(i)); 2316 } 2317 } 2318 } 2319 2320 mService.trimApplications(); 2321 //dump(); 2322 //mWindowManager.dump(); 2323 2324 if (booting || enableScreen) { 2325 mService.postFinishBooting(booting, enableScreen); 2326 } 2327 2328 if (activityRemoved) { 2329 resumeTopActivitiesLocked(); 2330 } 2331 2332 return r; 2333 } 2334 2335 boolean handleAppDiedLocked(ProcessRecord app) { 2336 boolean hasVisibleActivities = false; 2337 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2338 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2339 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2340 hasVisibleActivities |= stacks.get(stackNdx).handleAppDiedLocked(app); 2341 } 2342 } 2343 return hasVisibleActivities; 2344 } 2345 2346 void closeSystemDialogsLocked() { 2347 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2348 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2349 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2350 stacks.get(stackNdx).closeSystemDialogsLocked(); 2351 } 2352 } 2353 } 2354 2355 void removeUserLocked(int userId) { 2356 mUserStackInFront.delete(userId); 2357 } 2358 2359 /** 2360 * @return true if some activity was finished (or would have finished if doit were true). 2361 */ 2362 boolean forceStopPackageLocked(String name, boolean doit, boolean evenPersistent, int userId) { 2363 boolean didSomething = false; 2364 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2365 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2366 final int numStacks = stacks.size(); 2367 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 2368 final ActivityStack stack = stacks.get(stackNdx); 2369 if (stack.forceStopPackageLocked(name, doit, evenPersistent, userId)) { 2370 didSomething = true; 2371 } 2372 } 2373 } 2374 return didSomething; 2375 } 2376 2377 void updatePreviousProcessLocked(ActivityRecord r) { 2378 // Now that this process has stopped, we may want to consider 2379 // it to be the previous app to try to keep around in case 2380 // the user wants to return to it. 2381 2382 // First, found out what is currently the foreground app, so that 2383 // we don't blow away the previous app if this activity is being 2384 // hosted by the process that is actually still the foreground. 2385 ProcessRecord fgApp = null; 2386 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2387 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2388 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2389 final ActivityStack stack = stacks.get(stackNdx); 2390 if (isFrontStack(stack)) { 2391 if (stack.mResumedActivity != null) { 2392 fgApp = stack.mResumedActivity.app; 2393 } else if (stack.mPausingActivity != null) { 2394 fgApp = stack.mPausingActivity.app; 2395 } 2396 break; 2397 } 2398 } 2399 } 2400 2401 // Now set this one as the previous process, only if that really 2402 // makes sense to. 2403 if (r.app != null && fgApp != null && r.app != fgApp 2404 && r.lastVisibleTime > mService.mPreviousProcessVisibleTime 2405 && r.app != mService.mHomeProcess) { 2406 mService.mPreviousProcess = r.app; 2407 mService.mPreviousProcessVisibleTime = r.lastVisibleTime; 2408 } 2409 } 2410 2411 boolean resumeTopActivitiesLocked() { 2412 return resumeTopActivitiesLocked(null, null, null); 2413 } 2414 2415 boolean resumeTopActivitiesLocked(ActivityStack targetStack, ActivityRecord target, 2416 Bundle targetOptions) { 2417 if (targetStack == null) { 2418 targetStack = getFocusedStack(); 2419 } 2420 // Do targetStack first. 2421 boolean result = false; 2422 if (isFrontStack(targetStack)) { 2423 result = targetStack.resumeTopActivityLocked(target, targetOptions); 2424 } 2425 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2426 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2427 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2428 final ActivityStack stack = stacks.get(stackNdx); 2429 if (stack == targetStack) { 2430 // Already started above. 2431 continue; 2432 } 2433 if (isFrontStack(stack)) { 2434 stack.resumeTopActivityLocked(null); 2435 } 2436 } 2437 } 2438 return result; 2439 } 2440 2441 void finishTopRunningActivityLocked(ProcessRecord app) { 2442 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2443 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2444 final int numStacks = stacks.size(); 2445 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 2446 final ActivityStack stack = stacks.get(stackNdx); 2447 stack.finishTopRunningActivityLocked(app); 2448 } 2449 } 2450 } 2451 2452 void finishVoiceTask(IVoiceInteractionSession session) { 2453 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2454 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2455 final int numStacks = stacks.size(); 2456 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 2457 final ActivityStack stack = stacks.get(stackNdx); 2458 stack.finishVoiceTask(session); 2459 } 2460 } 2461 } 2462 2463 void findTaskToMoveToFrontLocked(TaskRecord task, int flags, Bundle options) { 2464 if ((flags & ActivityManager.MOVE_TASK_NO_USER_ACTION) == 0) { 2465 mUserLeaving = true; 2466 } 2467 if ((flags & ActivityManager.MOVE_TASK_WITH_HOME) != 0) { 2468 // Caller wants the home activity moved with it. To accomplish this, 2469 // we'll just indicate that this task returns to the home task. 2470 task.setTaskToReturnTo(HOME_ACTIVITY_TYPE); 2471 } 2472 task.stack.moveTaskToFrontLocked(task, null, options); 2473 if (DEBUG_STACK) Slog.d(TAG, "findTaskToMoveToFront: moved to front of stack=" 2474 + task.stack); 2475 } 2476 2477 ActivityStack getStack(int stackId) { 2478 ActivityContainer activityContainer = mActivityContainers.get(stackId); 2479 if (activityContainer != null) { 2480 return activityContainer.mStack; 2481 } 2482 return null; 2483 } 2484 2485 ArrayList<ActivityStack> getStacks() { 2486 ArrayList<ActivityStack> allStacks = new ArrayList<ActivityStack>(); 2487 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2488 allStacks.addAll(mActivityDisplays.valueAt(displayNdx).mStacks); 2489 } 2490 return allStacks; 2491 } 2492 2493 IBinder getHomeActivityToken() { 2494 ActivityRecord homeActivity = getHomeActivity(); 2495 if (homeActivity != null) { 2496 return homeActivity.appToken; 2497 } 2498 return null; 2499 } 2500 2501 ActivityRecord getHomeActivity() { 2502 final ArrayList<TaskRecord> tasks = mHomeStack.getAllTasks(); 2503 for (int taskNdx = tasks.size() - 1; taskNdx >= 0; --taskNdx) { 2504 final TaskRecord task = tasks.get(taskNdx); 2505 if (task.isHomeTask()) { 2506 final ArrayList<ActivityRecord> activities = task.mActivities; 2507 for (int activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) { 2508 final ActivityRecord r = activities.get(activityNdx); 2509 if (r.isHomeActivity()) { 2510 return r; 2511 } 2512 } 2513 } 2514 } 2515 return null; 2516 } 2517 2518 ActivityContainer createActivityContainer(ActivityRecord parentActivity, 2519 IActivityContainerCallback callback) { 2520 ActivityContainer activityContainer = 2521 new VirtualActivityContainer(parentActivity, callback); 2522 mActivityContainers.put(activityContainer.mStackId, activityContainer); 2523 if (DEBUG_CONTAINERS) Slog.d(TAG, "createActivityContainer: " + activityContainer); 2524 parentActivity.mChildContainers.add(activityContainer); 2525 return activityContainer; 2526 } 2527 2528 void removeChildActivityContainers(ActivityRecord parentActivity) { 2529 final ArrayList<ActivityContainer> childStacks = parentActivity.mChildContainers; 2530 for (int containerNdx = childStacks.size() - 1; containerNdx >= 0; --containerNdx) { 2531 ActivityContainer container = childStacks.remove(containerNdx); 2532 if (DEBUG_CONTAINERS) Slog.d(TAG, "removeChildActivityContainers: removing " + 2533 container); 2534 container.release(); 2535 } 2536 } 2537 2538 void deleteActivityContainer(IActivityContainer container) { 2539 ActivityContainer activityContainer = (ActivityContainer)container; 2540 if (activityContainer != null) { 2541 if (DEBUG_CONTAINERS) Slog.d(TAG, "deleteActivityContainer: ", 2542 new RuntimeException("here").fillInStackTrace()); 2543 final int stackId = activityContainer.mStackId; 2544 mActivityContainers.remove(stackId); 2545 mWindowManager.removeStack(stackId); 2546 } 2547 } 2548 2549 private int createStackOnDisplay(int stackId, int displayId) { 2550 ActivityDisplay activityDisplay = mActivityDisplays.get(displayId); 2551 if (activityDisplay == null) { 2552 return -1; 2553 } 2554 2555 ActivityContainer activityContainer = new ActivityContainer(stackId); 2556 mActivityContainers.put(stackId, activityContainer); 2557 activityContainer.attachToDisplayLocked(activityDisplay); 2558 return stackId; 2559 } 2560 2561 int getNextStackId() { 2562 while (true) { 2563 if (++mLastStackId <= HOME_STACK_ID) { 2564 mLastStackId = HOME_STACK_ID + 1; 2565 } 2566 if (getStack(mLastStackId) == null) { 2567 break; 2568 } 2569 } 2570 return mLastStackId; 2571 } 2572 2573 void createStackForRestoredTaskHistory(ArrayList<TaskRecord> tasks) { 2574 int stackId = createStackOnDisplay(getNextStackId(), Display.DEFAULT_DISPLAY); 2575 final ActivityStack stack = getStack(stackId); 2576 for (int taskNdx = tasks.size() - 1; taskNdx >= 0; --taskNdx) { 2577 final TaskRecord task = tasks.get(taskNdx); 2578 stack.addTask(task, false, false); 2579 final int taskId = task.taskId; 2580 final ArrayList<ActivityRecord> activities = task.mActivities; 2581 for (int activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) { 2582 final ActivityRecord r = activities.get(activityNdx); 2583 mWindowManager.addAppToken(0, r.appToken, taskId, stackId, 2584 r.info.screenOrientation, r.fullscreen, 2585 (r.info.flags & ActivityInfo.FLAG_SHOW_ON_LOCK_SCREEN) != 0, 2586 r.userId, r.info.configChanges, task.voiceSession != null, 2587 r.mLaunchTaskBehind); 2588 } 2589 } 2590 } 2591 2592 void moveTaskToStack(int taskId, int stackId, boolean toTop) { 2593 final TaskRecord task = anyTaskForIdLocked(taskId); 2594 if (task == null) { 2595 return; 2596 } 2597 final ActivityStack stack = getStack(stackId); 2598 if (stack == null) { 2599 Slog.w(TAG, "moveTaskToStack: no stack for id=" + stackId); 2600 return; 2601 } 2602 task.stack.removeTask(task); 2603 stack.addTask(task, toTop, true); 2604 mWindowManager.addTask(taskId, stackId, toTop); 2605 resumeTopActivitiesLocked(); 2606 } 2607 2608 ActivityRecord findTaskLocked(ActivityRecord r) { 2609 if (DEBUG_TASKS) Slog.d(TAG, "Looking for task of " + r); 2610 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2611 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2612 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2613 final ActivityStack stack = stacks.get(stackNdx); 2614 if (!r.isApplicationActivity() && !stack.isHomeStack()) { 2615 if (DEBUG_TASKS) Slog.d(TAG, "Skipping stack: (home activity) " + stack); 2616 continue; 2617 } 2618 if (!stack.mActivityContainer.isEligibleForNewTasks()) { 2619 if (DEBUG_TASKS) Slog.d(TAG, "Skipping stack: (new task not allowed) " + 2620 stack); 2621 continue; 2622 } 2623 final ActivityRecord ar = stack.findTaskLocked(r); 2624 if (ar != null) { 2625 return ar; 2626 } 2627 } 2628 } 2629 if (DEBUG_TASKS) Slog.d(TAG, "No task found"); 2630 return null; 2631 } 2632 2633 ActivityRecord findActivityLocked(Intent intent, ActivityInfo info) { 2634 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2635 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2636 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2637 final ActivityRecord ar = stacks.get(stackNdx).findActivityLocked(intent, info); 2638 if (ar != null) { 2639 return ar; 2640 } 2641 } 2642 } 2643 return null; 2644 } 2645 2646 void goingToSleepLocked() { 2647 scheduleSleepTimeout(); 2648 if (!mGoingToSleep.isHeld()) { 2649 mGoingToSleep.acquire(); 2650 if (mLaunchingActivity.isHeld()) { 2651 if (VALIDATE_WAKE_LOCK_CALLER && Binder.getCallingUid() != Process.myUid()) { 2652 throw new IllegalStateException("Calling must be system uid"); 2653 } 2654 mLaunchingActivity.release(); 2655 mService.mHandler.removeMessages(LAUNCH_TIMEOUT_MSG); 2656 } 2657 } 2658 checkReadyForSleepLocked(); 2659 } 2660 2661 boolean shutdownLocked(int timeout) { 2662 goingToSleepLocked(); 2663 2664 boolean timedout = false; 2665 final long endTime = System.currentTimeMillis() + timeout; 2666 while (true) { 2667 boolean cantShutdown = false; 2668 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2669 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2670 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2671 cantShutdown |= stacks.get(stackNdx).checkReadyForSleepLocked(); 2672 } 2673 } 2674 if (cantShutdown) { 2675 long timeRemaining = endTime - System.currentTimeMillis(); 2676 if (timeRemaining > 0) { 2677 try { 2678 mService.wait(timeRemaining); 2679 } catch (InterruptedException e) { 2680 } 2681 } else { 2682 Slog.w(TAG, "Activity manager shutdown timed out"); 2683 timedout = true; 2684 break; 2685 } 2686 } else { 2687 break; 2688 } 2689 } 2690 2691 // Force checkReadyForSleep to complete. 2692 mSleepTimeout = true; 2693 checkReadyForSleepLocked(); 2694 2695 return timedout; 2696 } 2697 2698 void comeOutOfSleepIfNeededLocked() { 2699 removeSleepTimeouts(); 2700 if (mGoingToSleep.isHeld()) { 2701 mGoingToSleep.release(); 2702 } 2703 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2704 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2705 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2706 final ActivityStack stack = stacks.get(stackNdx); 2707 stack.awakeFromSleepingLocked(); 2708 if (isFrontStack(stack)) { 2709 resumeTopActivitiesLocked(); 2710 } 2711 } 2712 } 2713 mGoingToSleepActivities.clear(); 2714 } 2715 2716 void activitySleptLocked(ActivityRecord r) { 2717 mGoingToSleepActivities.remove(r); 2718 checkReadyForSleepLocked(); 2719 } 2720 2721 void checkReadyForSleepLocked() { 2722 if (!mService.isSleepingOrShuttingDown()) { 2723 // Do not care. 2724 return; 2725 } 2726 2727 if (!mSleepTimeout) { 2728 boolean dontSleep = false; 2729 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2730 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2731 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2732 dontSleep |= stacks.get(stackNdx).checkReadyForSleepLocked(); 2733 } 2734 } 2735 2736 if (mStoppingActivities.size() > 0) { 2737 // Still need to tell some activities to stop; can't sleep yet. 2738 if (DEBUG_PAUSE) Slog.v(TAG, "Sleep still need to stop " 2739 + mStoppingActivities.size() + " activities"); 2740 scheduleIdleLocked(); 2741 dontSleep = true; 2742 } 2743 2744 if (mGoingToSleepActivities.size() > 0) { 2745 // Still need to tell some activities to sleep; can't sleep yet. 2746 if (DEBUG_PAUSE) Slog.v(TAG, "Sleep still need to sleep " 2747 + mGoingToSleepActivities.size() + " activities"); 2748 dontSleep = true; 2749 } 2750 2751 if (dontSleep) { 2752 return; 2753 } 2754 } 2755 2756 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2757 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2758 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2759 stacks.get(stackNdx).goToSleep(); 2760 } 2761 } 2762 2763 removeSleepTimeouts(); 2764 2765 if (mGoingToSleep.isHeld()) { 2766 mGoingToSleep.release(); 2767 } 2768 if (mService.mShuttingDown) { 2769 mService.notifyAll(); 2770 } 2771 } 2772 2773 boolean reportResumedActivityLocked(ActivityRecord r) { 2774 final ActivityStack stack = r.task.stack; 2775 if (isFrontStack(stack)) { 2776 mService.updateUsageStats(r, true); 2777 } 2778 if (allResumedActivitiesComplete()) { 2779 ensureActivitiesVisibleLocked(null, 0); 2780 mWindowManager.executeAppTransition(); 2781 return true; 2782 } 2783 return false; 2784 } 2785 2786 void handleAppCrashLocked(ProcessRecord app) { 2787 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2788 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2789 final int numStacks = stacks.size(); 2790 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 2791 final ActivityStack stack = stacks.get(stackNdx); 2792 stack.handleAppCrashLocked(app); 2793 } 2794 } 2795 } 2796 2797 boolean requestVisibleBehindLocked(ActivityRecord r, boolean visible) { 2798 final ActivityStack stack = r.task.stack; 2799 if (stack == null) { 2800 if (DEBUG_VISIBLE_BEHIND) Slog.d(TAG, "requestVisibleBehind: r=" + r + " visible=" + 2801 visible + " stack is null"); 2802 return false; 2803 } 2804 final boolean isVisible = stack.hasVisibleBehindActivity(); 2805 if (DEBUG_VISIBLE_BEHIND) Slog.d(TAG, "requestVisibleBehind r=" + r + " visible=" + 2806 visible + " isVisible=" + isVisible); 2807 2808 final ActivityRecord top = topRunningActivityLocked(); 2809 if (top == null || top == r || (visible == isVisible)) { 2810 if (DEBUG_VISIBLE_BEHIND) Slog.d(TAG, "requestVisibleBehind: quick return"); 2811 stack.setVisibleBehindActivity(visible ? r : null); 2812 return true; 2813 } 2814 2815 // A non-top activity is reporting a visibility change. 2816 if (visible && top.fullscreen) { 2817 // Let the caller know that it can't be seen. 2818 if (DEBUG_VISIBLE_BEHIND) Slog.d(TAG, "requestVisibleBehind: returning top.fullscreen=" 2819 + top.fullscreen + " top.state=" + top.state + " top.app=" + top.app + 2820 " top.app.thread=" + top.app.thread); 2821 return false; 2822 } else if (!visible && stack.getVisibleBehindActivity() != r) { 2823 // Only the activity set as currently visible behind should actively reset its 2824 // visible behind state. 2825 if (DEBUG_VISIBLE_BEHIND) Slog.d(TAG, "requestVisibleBehind: returning visible=" 2826 + visible + " stack.getVisibleBehindActivity()=" + 2827 stack.getVisibleBehindActivity() + " r=" + r); 2828 return false; 2829 } 2830 2831 stack.setVisibleBehindActivity(visible ? r : null); 2832 if (!visible) { 2833 // Make the activity immediately above r opaque. 2834 final ActivityRecord next = stack.findNextTranslucentActivity(r); 2835 if (next != null) { 2836 mService.convertFromTranslucent(next.appToken); 2837 } 2838 } 2839 if (top.app != null && top.app.thread != null) { 2840 // Notify the top app of the change. 2841 try { 2842 top.app.thread.scheduleBackgroundVisibleBehindChanged(top.appToken, visible); 2843 } catch (RemoteException e) { 2844 } 2845 } 2846 return true; 2847 } 2848 2849 // Called when WindowManager has finished animating the launchingBehind activity to the back. 2850 void handleLaunchTaskBehindCompleteLocked(ActivityRecord r) { 2851 r.mLaunchTaskBehind = false; 2852 final TaskRecord task = r.task; 2853 task.setLastThumbnail(task.stack.screenshotActivities(r)); 2854 mService.addRecentTaskLocked(task); 2855 mWindowManager.setAppVisibility(r.appToken, false); 2856 } 2857 2858 void scheduleLaunchTaskBehindComplete(IBinder token) { 2859 mHandler.obtainMessage(LAUNCH_TASK_BEHIND_COMPLETE, token).sendToTarget(); 2860 } 2861 2862 void ensureActivitiesVisibleLocked(ActivityRecord starting, int configChanges) { 2863 // First the front stacks. In case any are not fullscreen and are in front of home. 2864 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2865 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2866 final int topStackNdx = stacks.size() - 1; 2867 for (int stackNdx = topStackNdx; stackNdx >= 0; --stackNdx) { 2868 final ActivityStack stack = stacks.get(stackNdx); 2869 stack.ensureActivitiesVisibleLocked(starting, configChanges); 2870 } 2871 } 2872 } 2873 2874 void scheduleDestroyAllActivities(ProcessRecord app, String reason) { 2875 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2876 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2877 final int numStacks = stacks.size(); 2878 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 2879 final ActivityStack stack = stacks.get(stackNdx); 2880 stack.scheduleDestroyActivities(app, reason); 2881 } 2882 } 2883 } 2884 2885 void releaseSomeActivitiesLocked(ProcessRecord app, String reason) { 2886 // Examine all activities currently running in the process. 2887 TaskRecord firstTask = null; 2888 // Tasks is non-null only if two or more tasks are found. 2889 ArraySet<TaskRecord> tasks = null; 2890 if (DEBUG_RELEASE) Slog.d(TAG, "Trying to release some activities in " + app); 2891 for (int i=0; i<app.activities.size(); i++) { 2892 ActivityRecord r = app.activities.get(i); 2893 // First, if we find an activity that is in the process of being destroyed, 2894 // then we just aren't going to do anything for now; we want things to settle 2895 // down before we try to prune more activities. 2896 if (r.finishing || r.state == ActivityState.DESTROYING 2897 || r.state == ActivityState.DESTROYED) { 2898 if (DEBUG_RELEASE) Slog.d(TAG, "Abort release; already destroying: " + r); 2899 return; 2900 } 2901 // Don't consider any activies that are currently not in a state where they 2902 // can be destroyed. 2903 if (r.visible || !r.stopped || !r.haveState 2904 || r.state == ActivityState.RESUMED || r.state == ActivityState.PAUSING 2905 || r.state == ActivityState.PAUSED || r.state == ActivityState.STOPPING) { 2906 if (DEBUG_RELEASE) Slog.d(TAG, "Not releasing in-use activity: " + r); 2907 continue; 2908 } 2909 if (r.task != null) { 2910 if (DEBUG_RELEASE) Slog.d(TAG, "Collecting release task " + r.task 2911 + " from " + r); 2912 if (firstTask == null) { 2913 firstTask = r.task; 2914 } else if (firstTask != r.task) { 2915 if (tasks == null) { 2916 tasks = new ArraySet<>(); 2917 tasks.add(firstTask); 2918 } 2919 tasks.add(r.task); 2920 } 2921 } 2922 } 2923 if (tasks == null) { 2924 if (DEBUG_RELEASE) Slog.d(TAG, "Didn't find two or more tasks to release"); 2925 return; 2926 } 2927 // If we have activities in multiple tasks that are in a position to be destroyed, 2928 // let's iterate through the tasks and release the oldest one. 2929 final int numDisplays = mActivityDisplays.size(); 2930 for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) { 2931 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2932 // Step through all stacks starting from behind, to hit the oldest things first. 2933 for (int stackNdx = 0; stackNdx < stacks.size(); stackNdx++) { 2934 final ActivityStack stack = stacks.get(stackNdx); 2935 // Try to release activities in this stack; if we manage to, we are done. 2936 if (stack.releaseSomeActivitiesLocked(app, tasks, reason) > 0) { 2937 return; 2938 } 2939 } 2940 } 2941 } 2942 2943 boolean switchUserLocked(int userId, UserStartedState uss) { 2944 mUserStackInFront.put(mCurrentUser, getFocusedStack().getStackId()); 2945 final int restoreStackId = mUserStackInFront.get(userId, HOME_STACK_ID); 2946 mCurrentUser = userId; 2947 2948 mStartingUsers.add(uss); 2949 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2950 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2951 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2952 final ActivityStack stack = stacks.get(stackNdx); 2953 stack.switchUserLocked(userId); 2954 TaskRecord task = stack.topTask(); 2955 if (task != null) { 2956 mWindowManager.moveTaskToTop(task.taskId); 2957 } 2958 } 2959 } 2960 2961 ActivityStack stack = getStack(restoreStackId); 2962 if (stack == null) { 2963 stack = mHomeStack; 2964 } 2965 final boolean homeInFront = stack.isHomeStack(); 2966 if (stack.isOnHomeDisplay()) { 2967 moveHomeStack(homeInFront); 2968 TaskRecord task = stack.topTask(); 2969 if (task != null) { 2970 mWindowManager.moveTaskToTop(task.taskId); 2971 } 2972 } else { 2973 // Stack was moved to another display while user was swapped out. 2974 resumeHomeStackTask(HOME_ACTIVITY_TYPE, null); 2975 } 2976 return homeInFront; 2977 } 2978 2979 /** 2980 * Add background users to send boot completed events to. 2981 * @param userId The user being started in the background 2982 * @param uss The state object for the user. 2983 */ 2984 public void startBackgroundUserLocked(int userId, UserStartedState uss) { 2985 mStartingBackgroundUsers.add(uss); 2986 } 2987 2988 final ArrayList<ActivityRecord> processStoppingActivitiesLocked(boolean remove) { 2989 int N = mStoppingActivities.size(); 2990 if (N <= 0) return null; 2991 2992 ArrayList<ActivityRecord> stops = null; 2993 2994 final boolean nowVisible = allResumedActivitiesVisible(); 2995 for (int i=0; i<N; i++) { 2996 ActivityRecord s = mStoppingActivities.get(i); 2997 if (localLOGV) Slog.v(TAG, "Stopping " + s + ": nowVisible=" 2998 + nowVisible + " waitingVisible=" + s.waitingVisible 2999 + " finishing=" + s.finishing); 3000 if (s.waitingVisible && nowVisible) { 3001 mWaitingVisibleActivities.remove(s); 3002 s.waitingVisible = false; 3003 if (s.finishing) { 3004 // If this activity is finishing, it is sitting on top of 3005 // everyone else but we now know it is no longer needed... 3006 // so get rid of it. Otherwise, we need to go through the 3007 // normal flow and hide it once we determine that it is 3008 // hidden by the activities in front of it. 3009 if (localLOGV) Slog.v(TAG, "Before stopping, can hide: " + s); 3010 mWindowManager.setAppVisibility(s.appToken, false); 3011 } 3012 } 3013 if ((!s.waitingVisible || mService.isSleepingOrShuttingDown()) && remove) { 3014 if (localLOGV) Slog.v(TAG, "Ready to stop: " + s); 3015 if (stops == null) { 3016 stops = new ArrayList<ActivityRecord>(); 3017 } 3018 stops.add(s); 3019 mStoppingActivities.remove(i); 3020 N--; 3021 i--; 3022 } 3023 } 3024 3025 return stops; 3026 } 3027 3028 void validateTopActivitiesLocked() { 3029 // FIXME 3030/* for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 3031 final ActivityStack stack = stacks.get(stackNdx); 3032 final ActivityRecord r = stack.topRunningActivityLocked(null); 3033 final ActivityState state = r == null ? ActivityState.DESTROYED : r.state; 3034 if (isFrontStack(stack)) { 3035 if (r == null) { 3036 Slog.e(TAG, "validateTop...: null top activity, stack=" + stack); 3037 } else { 3038 final ActivityRecord pausing = stack.mPausingActivity; 3039 if (pausing != null && pausing == r) { 3040 Slog.e(TAG, "validateTop...: top stack has pausing activity r=" + r + 3041 " state=" + state); 3042 } 3043 if (state != ActivityState.INITIALIZING && state != ActivityState.RESUMED) { 3044 Slog.e(TAG, "validateTop...: activity in front not resumed r=" + r + 3045 " state=" + state); 3046 } 3047 } 3048 } else { 3049 final ActivityRecord resumed = stack.mResumedActivity; 3050 if (resumed != null && resumed == r) { 3051 Slog.e(TAG, "validateTop...: back stack has resumed activity r=" + r + 3052 " state=" + state); 3053 } 3054 if (r != null && (state == ActivityState.INITIALIZING 3055 || state == ActivityState.RESUMED)) { 3056 Slog.e(TAG, "validateTop...: activity in back resumed r=" + r + 3057 " state=" + state); 3058 } 3059 } 3060 } 3061*/ 3062 } 3063 3064 public void dump(PrintWriter pw, String prefix) { 3065 pw.print(prefix); pw.print("mFocusedStack=" + mFocusedStack); 3066 pw.print(" mLastFocusedStack="); pw.println(mLastFocusedStack); 3067 pw.print(prefix); pw.println("mSleepTimeout=" + mSleepTimeout); 3068 pw.print(prefix); pw.println("mCurTaskId=" + mCurTaskId); 3069 pw.print(prefix); pw.println("mUserStackInFront=" + mUserStackInFront); 3070 pw.print(prefix); pw.println("mActivityContainers=" + mActivityContainers); 3071 } 3072 3073 ArrayList<ActivityRecord> getDumpActivitiesLocked(String name) { 3074 return getFocusedStack().getDumpActivitiesLocked(name); 3075 } 3076 3077 static boolean printThisActivity(PrintWriter pw, ActivityRecord activity, String dumpPackage, 3078 boolean needSep, String prefix) { 3079 if (activity != null) { 3080 if (dumpPackage == null || dumpPackage.equals(activity.packageName)) { 3081 if (needSep) { 3082 pw.println(); 3083 } 3084 pw.print(prefix); 3085 pw.println(activity); 3086 return true; 3087 } 3088 } 3089 return false; 3090 } 3091 3092 boolean dumpActivitiesLocked(FileDescriptor fd, PrintWriter pw, boolean dumpAll, 3093 boolean dumpClient, String dumpPackage) { 3094 boolean printed = false; 3095 boolean needSep = false; 3096 for (int displayNdx = 0; displayNdx < mActivityDisplays.size(); ++displayNdx) { 3097 ActivityDisplay activityDisplay = mActivityDisplays.valueAt(displayNdx); 3098 pw.print("Display #"); pw.print(activityDisplay.mDisplayId); 3099 pw.println(" (activities from bottom to top):"); 3100 ArrayList<ActivityStack> stacks = activityDisplay.mStacks; 3101 final int numStacks = stacks.size(); 3102 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 3103 final ActivityStack stack = stacks.get(stackNdx); 3104 StringBuilder stackHeader = new StringBuilder(128); 3105 stackHeader.append(" Stack #"); 3106 stackHeader.append(stack.mStackId); 3107 stackHeader.append(":"); 3108 printed |= stack.dumpActivitiesLocked(fd, pw, dumpAll, dumpClient, dumpPackage, 3109 needSep, stackHeader.toString()); 3110 printed |= dumpHistoryList(fd, pw, stack.mLRUActivities, " ", "Run", false, 3111 !dumpAll, false, dumpPackage, true, 3112 " Running activities (most recent first):", null); 3113 3114 needSep = printed; 3115 boolean pr = printThisActivity(pw, stack.mPausingActivity, dumpPackage, needSep, 3116 " mPausingActivity: "); 3117 if (pr) { 3118 printed = true; 3119 needSep = false; 3120 } 3121 pr = printThisActivity(pw, stack.mResumedActivity, dumpPackage, needSep, 3122 " mResumedActivity: "); 3123 if (pr) { 3124 printed = true; 3125 needSep = false; 3126 } 3127 if (dumpAll) { 3128 pr = printThisActivity(pw, stack.mLastPausedActivity, dumpPackage, needSep, 3129 " mLastPausedActivity: "); 3130 if (pr) { 3131 printed = true; 3132 needSep = true; 3133 } 3134 printed |= printThisActivity(pw, stack.mLastNoHistoryActivity, dumpPackage, 3135 needSep, " mLastNoHistoryActivity: "); 3136 } 3137 needSep = printed; 3138 } 3139 } 3140 3141 printed |= dumpHistoryList(fd, pw, mFinishingActivities, " ", "Fin", false, !dumpAll, 3142 false, dumpPackage, true, " Activities waiting to finish:", null); 3143 printed |= dumpHistoryList(fd, pw, mStoppingActivities, " ", "Stop", false, !dumpAll, 3144 false, dumpPackage, true, " Activities waiting to stop:", null); 3145 printed |= dumpHistoryList(fd, pw, mWaitingVisibleActivities, " ", "Wait", false, !dumpAll, 3146 false, dumpPackage, true, " Activities waiting for another to become visible:", 3147 null); 3148 printed |= dumpHistoryList(fd, pw, mGoingToSleepActivities, " ", "Sleep", false, !dumpAll, 3149 false, dumpPackage, true, " Activities waiting to sleep:", null); 3150 printed |= dumpHistoryList(fd, pw, mGoingToSleepActivities, " ", "Sleep", false, !dumpAll, 3151 false, dumpPackage, true, " Activities waiting to sleep:", null); 3152 3153 return printed; 3154 } 3155 3156 static boolean dumpHistoryList(FileDescriptor fd, PrintWriter pw, List<ActivityRecord> list, 3157 String prefix, String label, boolean complete, boolean brief, boolean client, 3158 String dumpPackage, boolean needNL, String header1, String header2) { 3159 TaskRecord lastTask = null; 3160 String innerPrefix = null; 3161 String[] args = null; 3162 boolean printed = false; 3163 for (int i=list.size()-1; i>=0; i--) { 3164 final ActivityRecord r = list.get(i); 3165 if (dumpPackage != null && !dumpPackage.equals(r.packageName)) { 3166 continue; 3167 } 3168 if (innerPrefix == null) { 3169 innerPrefix = prefix + " "; 3170 args = new String[0]; 3171 } 3172 printed = true; 3173 final boolean full = !brief && (complete || !r.isInHistory()); 3174 if (needNL) { 3175 pw.println(""); 3176 needNL = false; 3177 } 3178 if (header1 != null) { 3179 pw.println(header1); 3180 header1 = null; 3181 } 3182 if (header2 != null) { 3183 pw.println(header2); 3184 header2 = null; 3185 } 3186 if (lastTask != r.task) { 3187 lastTask = r.task; 3188 pw.print(prefix); 3189 pw.print(full ? "* " : " "); 3190 pw.println(lastTask); 3191 if (full) { 3192 lastTask.dump(pw, prefix + " "); 3193 } else if (complete) { 3194 // Complete + brief == give a summary. Isn't that obvious?!? 3195 if (lastTask.intent != null) { 3196 pw.print(prefix); pw.print(" "); 3197 pw.println(lastTask.intent.toInsecureStringWithClip()); 3198 } 3199 } 3200 } 3201 pw.print(prefix); pw.print(full ? " * " : " "); pw.print(label); 3202 pw.print(" #"); pw.print(i); pw.print(": "); 3203 pw.println(r); 3204 if (full) { 3205 r.dump(pw, innerPrefix); 3206 } else if (complete) { 3207 // Complete + brief == give a summary. Isn't that obvious?!? 3208 pw.print(innerPrefix); pw.println(r.intent.toInsecureString()); 3209 if (r.app != null) { 3210 pw.print(innerPrefix); pw.println(r.app); 3211 } 3212 } 3213 if (client && r.app != null && r.app.thread != null) { 3214 // flush anything that is already in the PrintWriter since the thread is going 3215 // to write to the file descriptor directly 3216 pw.flush(); 3217 try { 3218 TransferPipe tp = new TransferPipe(); 3219 try { 3220 r.app.thread.dumpActivity(tp.getWriteFd().getFileDescriptor(), 3221 r.appToken, innerPrefix, args); 3222 // Short timeout, since blocking here can 3223 // deadlock with the application. 3224 tp.go(fd, 2000); 3225 } finally { 3226 tp.kill(); 3227 } 3228 } catch (IOException e) { 3229 pw.println(innerPrefix + "Failure while dumping the activity: " + e); 3230 } catch (RemoteException e) { 3231 pw.println(innerPrefix + "Got a RemoteException while dumping the activity"); 3232 } 3233 needNL = true; 3234 } 3235 } 3236 return printed; 3237 } 3238 3239 void scheduleIdleTimeoutLocked(ActivityRecord next) { 3240 if (DEBUG_IDLE) Slog.d(TAG, "scheduleIdleTimeoutLocked: Callers=" + Debug.getCallers(4)); 3241 Message msg = mHandler.obtainMessage(IDLE_TIMEOUT_MSG, next); 3242 mHandler.sendMessageDelayed(msg, IDLE_TIMEOUT); 3243 } 3244 3245 final void scheduleIdleLocked() { 3246 mHandler.sendEmptyMessage(IDLE_NOW_MSG); 3247 } 3248 3249 void removeTimeoutsForActivityLocked(ActivityRecord r) { 3250 if (DEBUG_IDLE) Slog.d(TAG, "removeTimeoutsForActivity: Callers=" + Debug.getCallers(4)); 3251 mHandler.removeMessages(IDLE_TIMEOUT_MSG, r); 3252 } 3253 3254 final void scheduleResumeTopActivities() { 3255 if (!mHandler.hasMessages(RESUME_TOP_ACTIVITY_MSG)) { 3256 mHandler.sendEmptyMessage(RESUME_TOP_ACTIVITY_MSG); 3257 } 3258 } 3259 3260 void removeSleepTimeouts() { 3261 mSleepTimeout = false; 3262 mHandler.removeMessages(SLEEP_TIMEOUT_MSG); 3263 } 3264 3265 final void scheduleSleepTimeout() { 3266 removeSleepTimeouts(); 3267 mHandler.sendEmptyMessageDelayed(SLEEP_TIMEOUT_MSG, SLEEP_TIMEOUT); 3268 } 3269 3270 @Override 3271 public void onDisplayAdded(int displayId) { 3272 Slog.v(TAG, "Display added displayId=" + displayId); 3273 mHandler.sendMessage(mHandler.obtainMessage(HANDLE_DISPLAY_ADDED, displayId, 0)); 3274 } 3275 3276 @Override 3277 public void onDisplayRemoved(int displayId) { 3278 Slog.v(TAG, "Display removed displayId=" + displayId); 3279 mHandler.sendMessage(mHandler.obtainMessage(HANDLE_DISPLAY_REMOVED, displayId, 0)); 3280 } 3281 3282 @Override 3283 public void onDisplayChanged(int displayId) { 3284 Slog.v(TAG, "Display changed displayId=" + displayId); 3285 mHandler.sendMessage(mHandler.obtainMessage(HANDLE_DISPLAY_CHANGED, displayId, 0)); 3286 } 3287 3288 public void handleDisplayAddedLocked(int displayId) { 3289 boolean newDisplay; 3290 synchronized (mService) { 3291 newDisplay = mActivityDisplays.get(displayId) == null; 3292 if (newDisplay) { 3293 ActivityDisplay activityDisplay = new ActivityDisplay(displayId); 3294 if (activityDisplay.mDisplay == null) { 3295 Slog.w(TAG, "Display " + displayId + " gone before initialization complete"); 3296 return; 3297 } 3298 mActivityDisplays.put(displayId, activityDisplay); 3299 } 3300 } 3301 if (newDisplay) { 3302 mWindowManager.onDisplayAdded(displayId); 3303 } 3304 } 3305 3306 public void handleDisplayRemovedLocked(int displayId) { 3307 synchronized (mService) { 3308 ActivityDisplay activityDisplay = mActivityDisplays.get(displayId); 3309 if (activityDisplay != null) { 3310 ArrayList<ActivityStack> stacks = activityDisplay.mStacks; 3311 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 3312 stacks.get(stackNdx).mActivityContainer.detachLocked(); 3313 } 3314 mActivityDisplays.remove(displayId); 3315 } 3316 } 3317 mWindowManager.onDisplayRemoved(displayId); 3318 } 3319 3320 public void handleDisplayChangedLocked(int displayId) { 3321 synchronized (mService) { 3322 ActivityDisplay activityDisplay = mActivityDisplays.get(displayId); 3323 if (activityDisplay != null) { 3324 // TODO: Update the bounds. 3325 } 3326 } 3327 mWindowManager.onDisplayChanged(displayId); 3328 } 3329 3330 StackInfo getStackInfo(ActivityStack stack) { 3331 StackInfo info = new StackInfo(); 3332 mWindowManager.getStackBounds(stack.mStackId, info.bounds); 3333 info.displayId = Display.DEFAULT_DISPLAY; 3334 info.stackId = stack.mStackId; 3335 3336 ArrayList<TaskRecord> tasks = stack.getAllTasks(); 3337 final int numTasks = tasks.size(); 3338 int[] taskIds = new int[numTasks]; 3339 String[] taskNames = new String[numTasks]; 3340 for (int i = 0; i < numTasks; ++i) { 3341 final TaskRecord task = tasks.get(i); 3342 taskIds[i] = task.taskId; 3343 taskNames[i] = task.origActivity != null ? task.origActivity.flattenToString() 3344 : task.realActivity != null ? task.realActivity.flattenToString() 3345 : task.getTopActivity() != null ? task.getTopActivity().packageName 3346 : "unknown"; 3347 } 3348 info.taskIds = taskIds; 3349 info.taskNames = taskNames; 3350 return info; 3351 } 3352 3353 StackInfo getStackInfoLocked(int stackId) { 3354 ActivityStack stack = getStack(stackId); 3355 if (stack != null) { 3356 return getStackInfo(stack); 3357 } 3358 return null; 3359 } 3360 3361 ArrayList<StackInfo> getAllStackInfosLocked() { 3362 ArrayList<StackInfo> list = new ArrayList<StackInfo>(); 3363 for (int displayNdx = 0; displayNdx < mActivityDisplays.size(); ++displayNdx) { 3364 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 3365 for (int ndx = stacks.size() - 1; ndx >= 0; --ndx) { 3366 list.add(getStackInfo(stacks.get(ndx))); 3367 } 3368 } 3369 return list; 3370 } 3371 3372 void showLockTaskToast() { 3373 mLockTaskNotify.showToast(mLockTaskIsLocked); 3374 } 3375 3376 void setLockTaskModeLocked(TaskRecord task, boolean isLocked) { 3377 if (task == null) { 3378 // Take out of lock task mode if necessary 3379 if (mLockTaskModeTask != null) { 3380 final Message lockTaskMsg = Message.obtain(); 3381 lockTaskMsg.arg1 = mLockTaskModeTask.userId; 3382 lockTaskMsg.what = LOCK_TASK_END_MSG; 3383 mLockTaskModeTask = null; 3384 mHandler.sendMessage(lockTaskMsg); 3385 } 3386 return; 3387 } 3388 if (isLockTaskModeViolation(task)) { 3389 Slog.e(TAG, "setLockTaskMode: Attempt to start a second Lock Task Mode task."); 3390 return; 3391 } 3392 mLockTaskModeTask = task; 3393 findTaskToMoveToFrontLocked(task, 0, null); 3394 resumeTopActivitiesLocked(); 3395 3396 final Message lockTaskMsg = Message.obtain(); 3397 lockTaskMsg.obj = mLockTaskModeTask.intent.getComponent().getPackageName(); 3398 lockTaskMsg.arg1 = mLockTaskModeTask.userId; 3399 lockTaskMsg.what = LOCK_TASK_START_MSG; 3400 lockTaskMsg.arg2 = !isLocked ? 1 : 0; 3401 mHandler.sendMessage(lockTaskMsg); 3402 } 3403 3404 boolean isLockTaskModeViolation(TaskRecord task) { 3405 return mLockTaskModeTask != null && mLockTaskModeTask != task; 3406 } 3407 3408 void endLockTaskModeIfTaskEnding(TaskRecord task) { 3409 if (mLockTaskModeTask != null && mLockTaskModeTask == task) { 3410 final Message lockTaskMsg = Message.obtain(); 3411 lockTaskMsg.arg1 = mLockTaskModeTask.userId; 3412 lockTaskMsg.what = LOCK_TASK_END_MSG; 3413 mLockTaskModeTask = null; 3414 mHandler.sendMessage(lockTaskMsg); 3415 } 3416 } 3417 3418 boolean isInLockTaskMode() { 3419 return mLockTaskModeTask != null; 3420 } 3421 3422 private final class ActivityStackSupervisorHandler extends Handler { 3423 3424 public ActivityStackSupervisorHandler(Looper looper) { 3425 super(looper); 3426 } 3427 3428 void activityIdleInternal(ActivityRecord r) { 3429 synchronized (mService) { 3430 activityIdleInternalLocked(r != null ? r.appToken : null, true, null); 3431 } 3432 } 3433 3434 @Override 3435 public void handleMessage(Message msg) { 3436 switch (msg.what) { 3437 case IDLE_TIMEOUT_MSG: { 3438 if (DEBUG_IDLE) Slog.d(TAG, "handleMessage: IDLE_TIMEOUT_MSG: r=" + msg.obj); 3439 if (mService.mDidDexOpt) { 3440 mService.mDidDexOpt = false; 3441 Message nmsg = mHandler.obtainMessage(IDLE_TIMEOUT_MSG); 3442 nmsg.obj = msg.obj; 3443 mHandler.sendMessageDelayed(nmsg, IDLE_TIMEOUT); 3444 return; 3445 } 3446 // We don't at this point know if the activity is fullscreen, 3447 // so we need to be conservative and assume it isn't. 3448 activityIdleInternal((ActivityRecord)msg.obj); 3449 } break; 3450 case IDLE_NOW_MSG: { 3451 if (DEBUG_IDLE) Slog.d(TAG, "handleMessage: IDLE_NOW_MSG: r=" + msg.obj); 3452 activityIdleInternal((ActivityRecord)msg.obj); 3453 } break; 3454 case RESUME_TOP_ACTIVITY_MSG: { 3455 synchronized (mService) { 3456 resumeTopActivitiesLocked(); 3457 } 3458 } break; 3459 case SLEEP_TIMEOUT_MSG: { 3460 synchronized (mService) { 3461 if (mService.isSleepingOrShuttingDown()) { 3462 Slog.w(TAG, "Sleep timeout! Sleeping now."); 3463 mSleepTimeout = true; 3464 checkReadyForSleepLocked(); 3465 } 3466 } 3467 } break; 3468 case LAUNCH_TIMEOUT_MSG: { 3469 if (mService.mDidDexOpt) { 3470 mService.mDidDexOpt = false; 3471 mHandler.sendEmptyMessageDelayed(LAUNCH_TIMEOUT_MSG, LAUNCH_TIMEOUT); 3472 return; 3473 } 3474 synchronized (mService) { 3475 if (mLaunchingActivity.isHeld()) { 3476 Slog.w(TAG, "Launch timeout has expired, giving up wake lock!"); 3477 if (VALIDATE_WAKE_LOCK_CALLER 3478 && Binder.getCallingUid() != Process.myUid()) { 3479 throw new IllegalStateException("Calling must be system uid"); 3480 } 3481 mLaunchingActivity.release(); 3482 } 3483 } 3484 } break; 3485 case HANDLE_DISPLAY_ADDED: { 3486 handleDisplayAddedLocked(msg.arg1); 3487 } break; 3488 case HANDLE_DISPLAY_CHANGED: { 3489 handleDisplayChangedLocked(msg.arg1); 3490 } break; 3491 case HANDLE_DISPLAY_REMOVED: { 3492 handleDisplayRemovedLocked(msg.arg1); 3493 } break; 3494 case CONTAINER_CALLBACK_VISIBILITY: { 3495 final ActivityContainer container = (ActivityContainer) msg.obj; 3496 final IActivityContainerCallback callback = container.mCallback; 3497 if (callback != null) { 3498 try { 3499 callback.setVisible(container.asBinder(), msg.arg1 == 1); 3500 } catch (RemoteException e) { 3501 } 3502 } 3503 } break; 3504 case LOCK_TASK_START_MSG: { 3505 // When lock task starts, we disable the status bars. 3506 try { 3507 if (mLockTaskNotify == null) { 3508 mLockTaskNotify = new LockTaskNotify(mService.mContext); 3509 } 3510 mLockTaskNotify.show(true); 3511 mLockTaskIsLocked = msg.arg2 == 0; 3512 if (getStatusBarService() != null) { 3513 int flags = 3514 StatusBarManager.DISABLE_MASK ^ StatusBarManager.DISABLE_BACK; 3515 if (!mLockTaskIsLocked) { 3516 flags ^= StatusBarManager.DISABLE_HOME 3517 | StatusBarManager.DISABLE_RECENT; 3518 } 3519 getStatusBarService().disable(flags, mToken, 3520 mService.mContext.getPackageName()); 3521 } 3522 mWindowManager.disableKeyguard(mToken, LOCK_TASK_TAG); 3523 if (getDevicePolicyManager() != null) { 3524 getDevicePolicyManager().notifyLockTaskModeChanged(true, 3525 (String)msg.obj, msg.arg1); 3526 } 3527 } catch (RemoteException ex) { 3528 throw new RuntimeException(ex); 3529 } 3530 } break; 3531 case LOCK_TASK_END_MSG: { 3532 // When lock task ends, we enable the status bars. 3533 try { 3534 if (getStatusBarService() != null) { 3535 getStatusBarService().disable(StatusBarManager.DISABLE_NONE, mToken, 3536 mService.mContext.getPackageName()); 3537 } 3538 mWindowManager.reenableKeyguard(mToken); 3539 if (getDevicePolicyManager() != null) { 3540 getDevicePolicyManager().notifyLockTaskModeChanged(false, null, 3541 msg.arg1); 3542 } 3543 if (mLockTaskNotify == null) { 3544 mLockTaskNotify = new LockTaskNotify(mService.mContext); 3545 } 3546 mLockTaskNotify.show(false); 3547 try { 3548 boolean shouldLockKeyguard = Settings.System.getInt( 3549 mService.mContext.getContentResolver(), 3550 Settings.System.LOCK_TO_APP_EXIT_LOCKED) != 0; 3551 if (!mLockTaskIsLocked && shouldLockKeyguard) { 3552 mWindowManager.lockNow(null); 3553 mWindowManager.dismissKeyguard(); 3554 new LockPatternUtils(mService.mContext) 3555 .requireCredentialEntry(UserHandle.USER_ALL); 3556 } 3557 } catch (SettingNotFoundException e) { 3558 // No setting, don't lock. 3559 } 3560 } catch (RemoteException ex) { 3561 throw new RuntimeException(ex); 3562 } 3563 } break; 3564 case CONTAINER_CALLBACK_TASK_LIST_EMPTY: { 3565 final ActivityContainer container = (ActivityContainer) msg.obj; 3566 final IActivityContainerCallback callback = container.mCallback; 3567 if (callback != null) { 3568 try { 3569 callback.onAllActivitiesComplete(container.asBinder()); 3570 } catch (RemoteException e) { 3571 } 3572 } 3573 } break; 3574 case CONTAINER_TASK_LIST_EMPTY_TIMEOUT: { 3575 synchronized (mService) { 3576 Slog.w(TAG, "Timeout waiting for all activities in task to finish. " + 3577 msg.obj); 3578 final ActivityContainer container = (ActivityContainer) msg.obj; 3579 container.mStack.finishAllActivitiesLocked(true); 3580 container.onTaskListEmptyLocked(); 3581 } 3582 } break; 3583 case LAUNCH_TASK_BEHIND_COMPLETE: { 3584 synchronized (mService) { 3585 ActivityRecord r = ActivityRecord.forToken((IBinder) msg.obj); 3586 if (r != null) { 3587 handleLaunchTaskBehindCompleteLocked(r); 3588 } 3589 } 3590 } break; 3591 } 3592 } 3593 } 3594 3595 class ActivityContainer extends android.app.IActivityContainer.Stub { 3596 final static int FORCE_NEW_TASK_FLAGS = Intent.FLAG_ACTIVITY_NEW_TASK | 3597 Intent.FLAG_ACTIVITY_MULTIPLE_TASK | Intent.FLAG_ACTIVITY_NO_ANIMATION; 3598 final int mStackId; 3599 IActivityContainerCallback mCallback = null; 3600 final ActivityStack mStack; 3601 ActivityRecord mParentActivity = null; 3602 String mIdString; 3603 3604 boolean mVisible = true; 3605 3606 /** Display this ActivityStack is currently on. Null if not attached to a Display. */ 3607 ActivityDisplay mActivityDisplay; 3608 3609 final static int CONTAINER_STATE_HAS_SURFACE = 0; 3610 final static int CONTAINER_STATE_NO_SURFACE = 1; 3611 final static int CONTAINER_STATE_FINISHING = 2; 3612 int mContainerState = CONTAINER_STATE_HAS_SURFACE; 3613 3614 ActivityContainer(int stackId) { 3615 synchronized (mService) { 3616 mStackId = stackId; 3617 mStack = new ActivityStack(this); 3618 mIdString = "ActivtyContainer{" + mStackId + "}"; 3619 if (DEBUG_STACK) Slog.d(TAG, "Creating " + this); 3620 } 3621 } 3622 3623 void attachToDisplayLocked(ActivityDisplay activityDisplay) { 3624 if (DEBUG_STACK) Slog.d(TAG, "attachToDisplayLocked: " + this 3625 + " to display=" + activityDisplay); 3626 mActivityDisplay = activityDisplay; 3627 mStack.mDisplayId = activityDisplay.mDisplayId; 3628 mStack.mStacks = activityDisplay.mStacks; 3629 3630 activityDisplay.attachActivities(mStack); 3631 mWindowManager.attachStack(mStackId, activityDisplay.mDisplayId); 3632 } 3633 3634 @Override 3635 public void attachToDisplay(int displayId) { 3636 synchronized (mService) { 3637 ActivityDisplay activityDisplay = mActivityDisplays.get(displayId); 3638 if (activityDisplay == null) { 3639 return; 3640 } 3641 attachToDisplayLocked(activityDisplay); 3642 } 3643 } 3644 3645 @Override 3646 public int getDisplayId() { 3647 synchronized (mService) { 3648 if (mActivityDisplay != null) { 3649 return mActivityDisplay.mDisplayId; 3650 } 3651 } 3652 return -1; 3653 } 3654 3655 @Override 3656 public boolean injectEvent(InputEvent event) { 3657 final long origId = Binder.clearCallingIdentity(); 3658 try { 3659 synchronized (mService) { 3660 if (mActivityDisplay != null) { 3661 return mInputManagerInternal.injectInputEvent(event, 3662 mActivityDisplay.mDisplayId, 3663 InputManager.INJECT_INPUT_EVENT_MODE_ASYNC); 3664 } 3665 } 3666 return false; 3667 } finally { 3668 Binder.restoreCallingIdentity(origId); 3669 } 3670 } 3671 3672 @Override 3673 public void release() { 3674 synchronized (mService) { 3675 if (mContainerState == CONTAINER_STATE_FINISHING) { 3676 return; 3677 } 3678 mContainerState = CONTAINER_STATE_FINISHING; 3679 3680 final Message msg = 3681 mHandler.obtainMessage(CONTAINER_TASK_LIST_EMPTY_TIMEOUT, this); 3682 mHandler.sendMessageDelayed(msg, 2000); 3683 3684 long origId = Binder.clearCallingIdentity(); 3685 try { 3686 mStack.finishAllActivitiesLocked(false); 3687 removePendingActivityLaunchesLocked(mStack); 3688 } finally { 3689 Binder.restoreCallingIdentity(origId); 3690 } 3691 } 3692 } 3693 3694 protected void detachLocked() { 3695 if (DEBUG_STACK) Slog.d(TAG, "detachLocked: " + this + " from display=" 3696 + mActivityDisplay + " Callers=" + Debug.getCallers(2)); 3697 if (mActivityDisplay != null) { 3698 mActivityDisplay.detachActivitiesLocked(mStack); 3699 mActivityDisplay = null; 3700 mStack.mDisplayId = -1; 3701 mStack.mStacks = null; 3702 mWindowManager.detachStack(mStackId); 3703 } 3704 } 3705 3706 @Override 3707 public final int startActivity(Intent intent) { 3708 mService.enforceNotIsolatedCaller("ActivityContainer.startActivity"); 3709 int userId = mService.handleIncomingUser(Binder.getCallingPid(), 3710 Binder.getCallingUid(), mCurrentUser, false, 3711 ActivityManagerService.ALLOW_FULL_ONLY, "ActivityContainer", null); 3712 // TODO: Switch to user app stacks here. 3713 intent.addFlags(FORCE_NEW_TASK_FLAGS); 3714 String mimeType = intent.getType(); 3715 if (mimeType == null && intent.getData() != null 3716 && "content".equals(intent.getData().getScheme())) { 3717 mimeType = mService.getProviderMimeType(intent.getData(), userId); 3718 } 3719 return startActivityMayWait(null, -1, null, intent, mimeType, null, null, null, null, 0, 3720 0, null, null, null, null, userId, this, null); 3721 } 3722 3723 @Override 3724 public final int startActivityIntentSender(IIntentSender intentSender) { 3725 mService.enforceNotIsolatedCaller("ActivityContainer.startActivityIntentSender"); 3726 3727 if (!(intentSender instanceof PendingIntentRecord)) { 3728 throw new IllegalArgumentException("Bad PendingIntent object"); 3729 } 3730 3731 return ((PendingIntentRecord)intentSender).sendInner(0, null, null, null, null, null, 3732 null, 0, FORCE_NEW_TASK_FLAGS, FORCE_NEW_TASK_FLAGS, null, this); 3733 } 3734 3735 private void checkEmbeddedAllowedInner(Intent intent, String resolvedType) { 3736 int userId = mService.handleIncomingUser(Binder.getCallingPid(), 3737 Binder.getCallingUid(), mCurrentUser, false, 3738 ActivityManagerService.ALLOW_FULL_ONLY, "ActivityContainer", null); 3739 if (resolvedType == null) { 3740 resolvedType = intent.getType(); 3741 if (resolvedType == null && intent.getData() != null 3742 && "content".equals(intent.getData().getScheme())) { 3743 resolvedType = mService.getProviderMimeType(intent.getData(), userId); 3744 } 3745 } 3746 ActivityInfo aInfo = resolveActivity(intent, resolvedType, 0, null, userId); 3747 if (aInfo != null && (aInfo.flags & ActivityInfo.FLAG_ALLOW_EMBEDDED) == 0) { 3748 throw new SecurityException( 3749 "Attempt to embed activity that has not set allowEmbedded=\"true\""); 3750 } 3751 } 3752 3753 /** Throw a SecurityException if allowEmbedded is not true */ 3754 @Override 3755 public final void checkEmbeddedAllowed(Intent intent) { 3756 checkEmbeddedAllowedInner(intent, null); 3757 } 3758 3759 /** Throw a SecurityException if allowEmbedded is not true */ 3760 @Override 3761 public final void checkEmbeddedAllowedIntentSender(IIntentSender intentSender) { 3762 if (!(intentSender instanceof PendingIntentRecord)) { 3763 throw new IllegalArgumentException("Bad PendingIntent object"); 3764 } 3765 PendingIntentRecord pendingIntent = (PendingIntentRecord) intentSender; 3766 checkEmbeddedAllowedInner(pendingIntent.key.requestIntent, 3767 pendingIntent.key.requestResolvedType); 3768 } 3769 3770 @Override 3771 public IBinder asBinder() { 3772 return this; 3773 } 3774 3775 @Override 3776 public void setSurface(Surface surface, int width, int height, int density) { 3777 mService.enforceNotIsolatedCaller("ActivityContainer.attachToSurface"); 3778 } 3779 3780 ActivityStackSupervisor getOuter() { 3781 return ActivityStackSupervisor.this; 3782 } 3783 3784 boolean isAttachedLocked() { 3785 return mActivityDisplay != null; 3786 } 3787 3788 void getBounds(Point outBounds) { 3789 synchronized (mService) { 3790 if (mActivityDisplay != null) { 3791 mActivityDisplay.getBounds(outBounds); 3792 } else { 3793 outBounds.set(0, 0); 3794 } 3795 } 3796 } 3797 3798 // TODO: Make sure every change to ActivityRecord.visible results in a call to this. 3799 void setVisible(boolean visible) { 3800 if (mVisible != visible) { 3801 mVisible = visible; 3802 if (mCallback != null) { 3803 mHandler.obtainMessage(CONTAINER_CALLBACK_VISIBILITY, visible ? 1 : 0, 3804 0 /* unused */, this).sendToTarget(); 3805 } 3806 } 3807 } 3808 3809 void setDrawn() { 3810 } 3811 3812 // You can always start a new task on a regular ActivityStack. 3813 boolean isEligibleForNewTasks() { 3814 return true; 3815 } 3816 3817 void onTaskListEmptyLocked() { 3818 } 3819 3820 @Override 3821 public String toString() { 3822 return mIdString + (mActivityDisplay == null ? "N" : "A"); 3823 } 3824 } 3825 3826 private class VirtualActivityContainer extends ActivityContainer { 3827 Surface mSurface; 3828 boolean mDrawn = false; 3829 3830 VirtualActivityContainer(ActivityRecord parent, IActivityContainerCallback callback) { 3831 super(getNextStackId()); 3832 mParentActivity = parent; 3833 mCallback = callback; 3834 mContainerState = CONTAINER_STATE_NO_SURFACE; 3835 mIdString = "VirtualActivityContainer{" + mStackId + ", parent=" + mParentActivity + "}"; 3836 } 3837 3838 @Override 3839 public void setSurface(Surface surface, int width, int height, int density) { 3840 super.setSurface(surface, width, height, density); 3841 3842 synchronized (mService) { 3843 final long origId = Binder.clearCallingIdentity(); 3844 try { 3845 setSurfaceLocked(surface, width, height, density); 3846 } finally { 3847 Binder.restoreCallingIdentity(origId); 3848 } 3849 } 3850 } 3851 3852 private void setSurfaceLocked(Surface surface, int width, int height, int density) { 3853 if (mContainerState == CONTAINER_STATE_FINISHING) { 3854 return; 3855 } 3856 VirtualActivityDisplay virtualActivityDisplay = 3857 (VirtualActivityDisplay) mActivityDisplay; 3858 if (virtualActivityDisplay == null) { 3859 virtualActivityDisplay = 3860 new VirtualActivityDisplay(width, height, density); 3861 mActivityDisplay = virtualActivityDisplay; 3862 mActivityDisplays.put(virtualActivityDisplay.mDisplayId, virtualActivityDisplay); 3863 attachToDisplayLocked(virtualActivityDisplay); 3864 } 3865 3866 if (mSurface != null) { 3867 mSurface.release(); 3868 } 3869 3870 mSurface = surface; 3871 if (surface != null) { 3872 mStack.resumeTopActivityLocked(null); 3873 } else { 3874 mContainerState = CONTAINER_STATE_NO_SURFACE; 3875 ((VirtualActivityDisplay) mActivityDisplay).setSurface(null); 3876 if (mStack.mPausingActivity == null && mStack.mResumedActivity != null) { 3877 mStack.startPausingLocked(false, true, false, false); 3878 } 3879 } 3880 3881 setSurfaceIfReadyLocked(); 3882 3883 if (DEBUG_STACK) Slog.d(TAG, "setSurface: " + this + " to display=" 3884 + virtualActivityDisplay); 3885 } 3886 3887 @Override 3888 boolean isAttachedLocked() { 3889 return mSurface != null && super.isAttachedLocked(); 3890 } 3891 3892 @Override 3893 void setDrawn() { 3894 synchronized (mService) { 3895 mDrawn = true; 3896 setSurfaceIfReadyLocked(); 3897 } 3898 } 3899 3900 // Never start a new task on an ActivityView if it isn't explicitly specified. 3901 @Override 3902 boolean isEligibleForNewTasks() { 3903 return false; 3904 } 3905 3906 void onTaskListEmptyLocked() { 3907 mHandler.removeMessages(CONTAINER_TASK_LIST_EMPTY_TIMEOUT, this); 3908 detachLocked(); 3909 deleteActivityContainer(this); 3910 mHandler.obtainMessage(CONTAINER_CALLBACK_TASK_LIST_EMPTY, this).sendToTarget(); 3911 } 3912 3913 private void setSurfaceIfReadyLocked() { 3914 if (DEBUG_STACK) Slog.v(TAG, "setSurfaceIfReadyLocked: mDrawn=" + mDrawn + 3915 " mContainerState=" + mContainerState + " mSurface=" + mSurface); 3916 if (mDrawn && mSurface != null && mContainerState == CONTAINER_STATE_NO_SURFACE) { 3917 ((VirtualActivityDisplay) mActivityDisplay).setSurface(mSurface); 3918 mContainerState = CONTAINER_STATE_HAS_SURFACE; 3919 } 3920 } 3921 } 3922 3923 /** Exactly one of these classes per Display in the system. Capable of holding zero or more 3924 * attached {@link ActivityStack}s */ 3925 class ActivityDisplay { 3926 /** Actual Display this object tracks. */ 3927 int mDisplayId; 3928 Display mDisplay; 3929 DisplayInfo mDisplayInfo = new DisplayInfo(); 3930 3931 /** All of the stacks on this display. Order matters, topmost stack is in front of all other 3932 * stacks, bottommost behind. Accessed directly by ActivityManager package classes */ 3933 final ArrayList<ActivityStack> mStacks = new ArrayList<ActivityStack>(); 3934 3935 ActivityRecord mVisibleBehindActivity; 3936 3937 ActivityDisplay() { 3938 } 3939 3940 // After instantiation, check that mDisplay is not null before using this. The alternative 3941 // is for this to throw an exception if mDisplayManager.getDisplay() returns null. 3942 ActivityDisplay(int displayId) { 3943 final Display display = mDisplayManager.getDisplay(displayId); 3944 if (display == null) { 3945 return; 3946 } 3947 init(display); 3948 } 3949 3950 void init(Display display) { 3951 mDisplay = display; 3952 mDisplayId = display.getDisplayId(); 3953 mDisplay.getDisplayInfo(mDisplayInfo); 3954 } 3955 3956 void attachActivities(ActivityStack stack) { 3957 if (DEBUG_STACK) Slog.v(TAG, "attachActivities: attaching " + stack + " to displayId=" 3958 + mDisplayId); 3959 mStacks.add(stack); 3960 } 3961 3962 void detachActivitiesLocked(ActivityStack stack) { 3963 if (DEBUG_STACK) Slog.v(TAG, "detachActivitiesLocked: detaching " + stack 3964 + " from displayId=" + mDisplayId); 3965 mStacks.remove(stack); 3966 } 3967 3968 void getBounds(Point bounds) { 3969 mDisplay.getDisplayInfo(mDisplayInfo); 3970 bounds.x = mDisplayInfo.appWidth; 3971 bounds.y = mDisplayInfo.appHeight; 3972 } 3973 3974 void setVisibleBehindActivity(ActivityRecord r) { 3975 mVisibleBehindActivity = r; 3976 } 3977 3978 boolean hasVisibleBehindActivity() { 3979 return mVisibleBehindActivity != null; 3980 } 3981 3982 @Override 3983 public String toString() { 3984 return "ActivityDisplay={" + mDisplayId + " numStacks=" + mStacks.size() + "}"; 3985 } 3986 } 3987 3988 class VirtualActivityDisplay extends ActivityDisplay { 3989 VirtualDisplay mVirtualDisplay; 3990 3991 VirtualActivityDisplay(int width, int height, int density) { 3992 DisplayManagerGlobal dm = DisplayManagerGlobal.getInstance(); 3993 mVirtualDisplay = dm.createVirtualDisplay(mService.mContext, null, 3994 VIRTUAL_DISPLAY_BASE_NAME, width, height, density, null, 3995 DisplayManager.VIRTUAL_DISPLAY_FLAG_PUBLIC | 3996 DisplayManager.VIRTUAL_DISPLAY_FLAG_OWN_CONTENT_ONLY, null, null); 3997 3998 init(mVirtualDisplay.getDisplay()); 3999 4000 mWindowManager.handleDisplayAdded(mDisplayId); 4001 } 4002 4003 void setSurface(Surface surface) { 4004 if (mVirtualDisplay != null) { 4005 mVirtualDisplay.setSurface(surface); 4006 } 4007 } 4008 4009 @Override 4010 void detachActivitiesLocked(ActivityStack stack) { 4011 super.detachActivitiesLocked(stack); 4012 if (mVirtualDisplay != null) { 4013 mVirtualDisplay.release(); 4014 mVirtualDisplay = null; 4015 } 4016 } 4017 4018 @Override 4019 public String toString() { 4020 return "VirtualActivityDisplay={" + mDisplayId + "}"; 4021 } 4022 } 4023 4024 private boolean isLeanbackOnlyDevice() { 4025 boolean onLeanbackOnly = false; 4026 try { 4027 onLeanbackOnly = AppGlobals.getPackageManager().hasSystemFeature( 4028 PackageManager.FEATURE_LEANBACK_ONLY); 4029 } catch (RemoteException e) { 4030 // noop 4031 } 4032 4033 return onLeanbackOnly; 4034 } 4035} 4036