ActivityStackSupervisor.java revision 9449a6162e275531857464acc2279894d5d6a240
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 (isFrontStack(r.task.stack) || fromTimeout) { 2247 booting = mService.mBooting; 2248 mService.mBooting = false; 2249 if (!mService.mBooted) { 2250 mService.mBooted = true; 2251 enableScreen = true; 2252 } 2253 } 2254 } 2255 2256 if (allResumedActivitiesIdle()) { 2257 if (r != null) { 2258 mService.scheduleAppGcsLocked(); 2259 } 2260 2261 if (mLaunchingActivity.isHeld()) { 2262 mHandler.removeMessages(LAUNCH_TIMEOUT_MSG); 2263 if (VALIDATE_WAKE_LOCK_CALLER && 2264 Binder.getCallingUid() != Process.myUid()) { 2265 throw new IllegalStateException("Calling must be system uid"); 2266 } 2267 mLaunchingActivity.release(); 2268 } 2269 ensureActivitiesVisibleLocked(null, 0); 2270 } 2271 2272 // Atomically retrieve all of the other things to do. 2273 stops = processStoppingActivitiesLocked(true); 2274 NS = stops != null ? stops.size() : 0; 2275 if ((NF=mFinishingActivities.size()) > 0) { 2276 finishes = new ArrayList<ActivityRecord>(mFinishingActivities); 2277 mFinishingActivities.clear(); 2278 } 2279 2280 if (mStartingUsers.size() > 0) { 2281 startingUsers = new ArrayList<UserStartedState>(mStartingUsers); 2282 mStartingUsers.clear(); 2283 } 2284 2285 // Stop any activities that are scheduled to do so but have been 2286 // waiting for the next one to start. 2287 for (int i = 0; i < NS; i++) { 2288 r = stops.get(i); 2289 final ActivityStack stack = r.task.stack; 2290 if (r.finishing) { 2291 stack.finishCurrentActivityLocked(r, ActivityStack.FINISH_IMMEDIATELY, false); 2292 } else { 2293 stack.stopActivityLocked(r); 2294 } 2295 } 2296 2297 // Finish any activities that are scheduled to do so but have been 2298 // waiting for the next one to start. 2299 for (int i = 0; i < NF; i++) { 2300 r = finishes.get(i); 2301 activityRemoved |= r.task.stack.destroyActivityLocked(r, true, "finish-idle"); 2302 } 2303 2304 if (!booting) { 2305 // Complete user switch 2306 if (startingUsers != null) { 2307 for (int i = 0; i < startingUsers.size(); i++) { 2308 mService.finishUserSwitch(startingUsers.get(i)); 2309 } 2310 } 2311 // Complete starting up of background users 2312 if (mStartingBackgroundUsers.size() > 0) { 2313 startingUsers = new ArrayList<UserStartedState>(mStartingBackgroundUsers); 2314 mStartingBackgroundUsers.clear(); 2315 for (int i = 0; i < startingUsers.size(); i++) { 2316 mService.finishUserBoot(startingUsers.get(i)); 2317 } 2318 } 2319 } 2320 2321 mService.trimApplications(); 2322 //dump(); 2323 //mWindowManager.dump(); 2324 2325 if (booting || enableScreen) { 2326 mService.postFinishBooting(booting, enableScreen); 2327 } 2328 2329 if (activityRemoved) { 2330 resumeTopActivitiesLocked(); 2331 } 2332 2333 return r; 2334 } 2335 2336 boolean handleAppDiedLocked(ProcessRecord app) { 2337 boolean hasVisibleActivities = false; 2338 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2339 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2340 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2341 hasVisibleActivities |= stacks.get(stackNdx).handleAppDiedLocked(app); 2342 } 2343 } 2344 return hasVisibleActivities; 2345 } 2346 2347 void closeSystemDialogsLocked() { 2348 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2349 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2350 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2351 stacks.get(stackNdx).closeSystemDialogsLocked(); 2352 } 2353 } 2354 } 2355 2356 void removeUserLocked(int userId) { 2357 mUserStackInFront.delete(userId); 2358 } 2359 2360 /** 2361 * @return true if some activity was finished (or would have finished if doit were true). 2362 */ 2363 boolean forceStopPackageLocked(String name, boolean doit, boolean evenPersistent, int userId) { 2364 boolean didSomething = false; 2365 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2366 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2367 final int numStacks = stacks.size(); 2368 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 2369 final ActivityStack stack = stacks.get(stackNdx); 2370 if (stack.forceStopPackageLocked(name, doit, evenPersistent, userId)) { 2371 didSomething = true; 2372 } 2373 } 2374 } 2375 return didSomething; 2376 } 2377 2378 void updatePreviousProcessLocked(ActivityRecord r) { 2379 // Now that this process has stopped, we may want to consider 2380 // it to be the previous app to try to keep around in case 2381 // the user wants to return to it. 2382 2383 // First, found out what is currently the foreground app, so that 2384 // we don't blow away the previous app if this activity is being 2385 // hosted by the process that is actually still the foreground. 2386 ProcessRecord fgApp = null; 2387 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2388 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2389 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2390 final ActivityStack stack = stacks.get(stackNdx); 2391 if (isFrontStack(stack)) { 2392 if (stack.mResumedActivity != null) { 2393 fgApp = stack.mResumedActivity.app; 2394 } else if (stack.mPausingActivity != null) { 2395 fgApp = stack.mPausingActivity.app; 2396 } 2397 break; 2398 } 2399 } 2400 } 2401 2402 // Now set this one as the previous process, only if that really 2403 // makes sense to. 2404 if (r.app != null && fgApp != null && r.app != fgApp 2405 && r.lastVisibleTime > mService.mPreviousProcessVisibleTime 2406 && r.app != mService.mHomeProcess) { 2407 mService.mPreviousProcess = r.app; 2408 mService.mPreviousProcessVisibleTime = r.lastVisibleTime; 2409 } 2410 } 2411 2412 boolean resumeTopActivitiesLocked() { 2413 return resumeTopActivitiesLocked(null, null, null); 2414 } 2415 2416 boolean resumeTopActivitiesLocked(ActivityStack targetStack, ActivityRecord target, 2417 Bundle targetOptions) { 2418 if (targetStack == null) { 2419 targetStack = getFocusedStack(); 2420 } 2421 // Do targetStack first. 2422 boolean result = false; 2423 if (isFrontStack(targetStack)) { 2424 result = targetStack.resumeTopActivityLocked(target, targetOptions); 2425 } 2426 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2427 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2428 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2429 final ActivityStack stack = stacks.get(stackNdx); 2430 if (stack == targetStack) { 2431 // Already started above. 2432 continue; 2433 } 2434 if (isFrontStack(stack)) { 2435 stack.resumeTopActivityLocked(null); 2436 } 2437 } 2438 } 2439 return result; 2440 } 2441 2442 void finishTopRunningActivityLocked(ProcessRecord app) { 2443 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2444 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2445 final int numStacks = stacks.size(); 2446 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 2447 final ActivityStack stack = stacks.get(stackNdx); 2448 stack.finishTopRunningActivityLocked(app); 2449 } 2450 } 2451 } 2452 2453 void finishVoiceTask(IVoiceInteractionSession session) { 2454 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2455 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2456 final int numStacks = stacks.size(); 2457 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 2458 final ActivityStack stack = stacks.get(stackNdx); 2459 stack.finishVoiceTask(session); 2460 } 2461 } 2462 } 2463 2464 void findTaskToMoveToFrontLocked(TaskRecord task, int flags, Bundle options) { 2465 if ((flags & ActivityManager.MOVE_TASK_NO_USER_ACTION) == 0) { 2466 mUserLeaving = true; 2467 } 2468 if ((flags & ActivityManager.MOVE_TASK_WITH_HOME) != 0) { 2469 // Caller wants the home activity moved with it. To accomplish this, 2470 // we'll just indicate that this task returns to the home task. 2471 task.setTaskToReturnTo(HOME_ACTIVITY_TYPE); 2472 } 2473 task.stack.moveTaskToFrontLocked(task, null, options); 2474 if (DEBUG_STACK) Slog.d(TAG, "findTaskToMoveToFront: moved to front of stack=" 2475 + task.stack); 2476 } 2477 2478 ActivityStack getStack(int stackId) { 2479 ActivityContainer activityContainer = mActivityContainers.get(stackId); 2480 if (activityContainer != null) { 2481 return activityContainer.mStack; 2482 } 2483 return null; 2484 } 2485 2486 ArrayList<ActivityStack> getStacks() { 2487 ArrayList<ActivityStack> allStacks = new ArrayList<ActivityStack>(); 2488 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2489 allStacks.addAll(mActivityDisplays.valueAt(displayNdx).mStacks); 2490 } 2491 return allStacks; 2492 } 2493 2494 IBinder getHomeActivityToken() { 2495 ActivityRecord homeActivity = getHomeActivity(); 2496 if (homeActivity != null) { 2497 return homeActivity.appToken; 2498 } 2499 return null; 2500 } 2501 2502 ActivityRecord getHomeActivity() { 2503 final ArrayList<TaskRecord> tasks = mHomeStack.getAllTasks(); 2504 for (int taskNdx = tasks.size() - 1; taskNdx >= 0; --taskNdx) { 2505 final TaskRecord task = tasks.get(taskNdx); 2506 if (task.isHomeTask()) { 2507 final ArrayList<ActivityRecord> activities = task.mActivities; 2508 for (int activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) { 2509 final ActivityRecord r = activities.get(activityNdx); 2510 if (r.isHomeActivity()) { 2511 return r; 2512 } 2513 } 2514 } 2515 } 2516 return null; 2517 } 2518 2519 ActivityContainer createActivityContainer(ActivityRecord parentActivity, 2520 IActivityContainerCallback callback) { 2521 ActivityContainer activityContainer = 2522 new VirtualActivityContainer(parentActivity, callback); 2523 mActivityContainers.put(activityContainer.mStackId, activityContainer); 2524 if (DEBUG_CONTAINERS) Slog.d(TAG, "createActivityContainer: " + activityContainer); 2525 parentActivity.mChildContainers.add(activityContainer); 2526 return activityContainer; 2527 } 2528 2529 void removeChildActivityContainers(ActivityRecord parentActivity) { 2530 final ArrayList<ActivityContainer> childStacks = parentActivity.mChildContainers; 2531 for (int containerNdx = childStacks.size() - 1; containerNdx >= 0; --containerNdx) { 2532 ActivityContainer container = childStacks.remove(containerNdx); 2533 if (DEBUG_CONTAINERS) Slog.d(TAG, "removeChildActivityContainers: removing " + 2534 container); 2535 container.release(); 2536 } 2537 } 2538 2539 void deleteActivityContainer(IActivityContainer container) { 2540 ActivityContainer activityContainer = (ActivityContainer)container; 2541 if (activityContainer != null) { 2542 if (DEBUG_CONTAINERS) Slog.d(TAG, "deleteActivityContainer: ", 2543 new RuntimeException("here").fillInStackTrace()); 2544 final int stackId = activityContainer.mStackId; 2545 mActivityContainers.remove(stackId); 2546 mWindowManager.removeStack(stackId); 2547 } 2548 } 2549 2550 private int createStackOnDisplay(int stackId, int displayId) { 2551 ActivityDisplay activityDisplay = mActivityDisplays.get(displayId); 2552 if (activityDisplay == null) { 2553 return -1; 2554 } 2555 2556 ActivityContainer activityContainer = new ActivityContainer(stackId); 2557 mActivityContainers.put(stackId, activityContainer); 2558 activityContainer.attachToDisplayLocked(activityDisplay); 2559 return stackId; 2560 } 2561 2562 int getNextStackId() { 2563 while (true) { 2564 if (++mLastStackId <= HOME_STACK_ID) { 2565 mLastStackId = HOME_STACK_ID + 1; 2566 } 2567 if (getStack(mLastStackId) == null) { 2568 break; 2569 } 2570 } 2571 return mLastStackId; 2572 } 2573 2574 void createStackForRestoredTaskHistory(ArrayList<TaskRecord> tasks) { 2575 int stackId = createStackOnDisplay(getNextStackId(), Display.DEFAULT_DISPLAY); 2576 final ActivityStack stack = getStack(stackId); 2577 for (int taskNdx = tasks.size() - 1; taskNdx >= 0; --taskNdx) { 2578 final TaskRecord task = tasks.get(taskNdx); 2579 stack.addTask(task, false, false); 2580 final int taskId = task.taskId; 2581 final ArrayList<ActivityRecord> activities = task.mActivities; 2582 for (int activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) { 2583 final ActivityRecord r = activities.get(activityNdx); 2584 mWindowManager.addAppToken(0, r.appToken, taskId, stackId, 2585 r.info.screenOrientation, r.fullscreen, 2586 (r.info.flags & ActivityInfo.FLAG_SHOW_ON_LOCK_SCREEN) != 0, 2587 r.userId, r.info.configChanges, task.voiceSession != null, 2588 r.mLaunchTaskBehind); 2589 } 2590 } 2591 } 2592 2593 void moveTaskToStack(int taskId, int stackId, boolean toTop) { 2594 final TaskRecord task = anyTaskForIdLocked(taskId); 2595 if (task == null) { 2596 return; 2597 } 2598 final ActivityStack stack = getStack(stackId); 2599 if (stack == null) { 2600 Slog.w(TAG, "moveTaskToStack: no stack for id=" + stackId); 2601 return; 2602 } 2603 task.stack.removeTask(task); 2604 stack.addTask(task, toTop, true); 2605 mWindowManager.addTask(taskId, stackId, toTop); 2606 resumeTopActivitiesLocked(); 2607 } 2608 2609 ActivityRecord findTaskLocked(ActivityRecord r) { 2610 if (DEBUG_TASKS) Slog.d(TAG, "Looking for task of " + r); 2611 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2612 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2613 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2614 final ActivityStack stack = stacks.get(stackNdx); 2615 if (!r.isApplicationActivity() && !stack.isHomeStack()) { 2616 if (DEBUG_TASKS) Slog.d(TAG, "Skipping stack: (home activity) " + stack); 2617 continue; 2618 } 2619 if (!stack.mActivityContainer.isEligibleForNewTasks()) { 2620 if (DEBUG_TASKS) Slog.d(TAG, "Skipping stack: (new task not allowed) " + 2621 stack); 2622 continue; 2623 } 2624 final ActivityRecord ar = stack.findTaskLocked(r); 2625 if (ar != null) { 2626 return ar; 2627 } 2628 } 2629 } 2630 if (DEBUG_TASKS) Slog.d(TAG, "No task found"); 2631 return null; 2632 } 2633 2634 ActivityRecord findActivityLocked(Intent intent, ActivityInfo info) { 2635 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2636 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2637 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2638 final ActivityRecord ar = stacks.get(stackNdx).findActivityLocked(intent, info); 2639 if (ar != null) { 2640 return ar; 2641 } 2642 } 2643 } 2644 return null; 2645 } 2646 2647 void goingToSleepLocked() { 2648 scheduleSleepTimeout(); 2649 if (!mGoingToSleep.isHeld()) { 2650 mGoingToSleep.acquire(); 2651 if (mLaunchingActivity.isHeld()) { 2652 if (VALIDATE_WAKE_LOCK_CALLER && Binder.getCallingUid() != Process.myUid()) { 2653 throw new IllegalStateException("Calling must be system uid"); 2654 } 2655 mLaunchingActivity.release(); 2656 mService.mHandler.removeMessages(LAUNCH_TIMEOUT_MSG); 2657 } 2658 } 2659 checkReadyForSleepLocked(); 2660 } 2661 2662 boolean shutdownLocked(int timeout) { 2663 goingToSleepLocked(); 2664 2665 boolean timedout = false; 2666 final long endTime = System.currentTimeMillis() + timeout; 2667 while (true) { 2668 boolean cantShutdown = false; 2669 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2670 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2671 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2672 cantShutdown |= stacks.get(stackNdx).checkReadyForSleepLocked(); 2673 } 2674 } 2675 if (cantShutdown) { 2676 long timeRemaining = endTime - System.currentTimeMillis(); 2677 if (timeRemaining > 0) { 2678 try { 2679 mService.wait(timeRemaining); 2680 } catch (InterruptedException e) { 2681 } 2682 } else { 2683 Slog.w(TAG, "Activity manager shutdown timed out"); 2684 timedout = true; 2685 break; 2686 } 2687 } else { 2688 break; 2689 } 2690 } 2691 2692 // Force checkReadyForSleep to complete. 2693 mSleepTimeout = true; 2694 checkReadyForSleepLocked(); 2695 2696 return timedout; 2697 } 2698 2699 void comeOutOfSleepIfNeededLocked() { 2700 removeSleepTimeouts(); 2701 if (mGoingToSleep.isHeld()) { 2702 mGoingToSleep.release(); 2703 } 2704 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2705 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2706 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2707 final ActivityStack stack = stacks.get(stackNdx); 2708 stack.awakeFromSleepingLocked(); 2709 if (isFrontStack(stack)) { 2710 resumeTopActivitiesLocked(); 2711 } 2712 } 2713 } 2714 mGoingToSleepActivities.clear(); 2715 } 2716 2717 void activitySleptLocked(ActivityRecord r) { 2718 mGoingToSleepActivities.remove(r); 2719 checkReadyForSleepLocked(); 2720 } 2721 2722 void checkReadyForSleepLocked() { 2723 if (!mService.isSleepingOrShuttingDown()) { 2724 // Do not care. 2725 return; 2726 } 2727 2728 if (!mSleepTimeout) { 2729 boolean dontSleep = false; 2730 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2731 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2732 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2733 dontSleep |= stacks.get(stackNdx).checkReadyForSleepLocked(); 2734 } 2735 } 2736 2737 if (mStoppingActivities.size() > 0) { 2738 // Still need to tell some activities to stop; can't sleep yet. 2739 if (DEBUG_PAUSE) Slog.v(TAG, "Sleep still need to stop " 2740 + mStoppingActivities.size() + " activities"); 2741 scheduleIdleLocked(); 2742 dontSleep = true; 2743 } 2744 2745 if (mGoingToSleepActivities.size() > 0) { 2746 // Still need to tell some activities to sleep; can't sleep yet. 2747 if (DEBUG_PAUSE) Slog.v(TAG, "Sleep still need to sleep " 2748 + mGoingToSleepActivities.size() + " activities"); 2749 dontSleep = true; 2750 } 2751 2752 if (dontSleep) { 2753 return; 2754 } 2755 } 2756 2757 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2758 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2759 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2760 stacks.get(stackNdx).goToSleep(); 2761 } 2762 } 2763 2764 removeSleepTimeouts(); 2765 2766 if (mGoingToSleep.isHeld()) { 2767 mGoingToSleep.release(); 2768 } 2769 if (mService.mShuttingDown) { 2770 mService.notifyAll(); 2771 } 2772 } 2773 2774 boolean reportResumedActivityLocked(ActivityRecord r) { 2775 final ActivityStack stack = r.task.stack; 2776 if (isFrontStack(stack)) { 2777 mService.updateUsageStats(r, true); 2778 } 2779 if (allResumedActivitiesComplete()) { 2780 ensureActivitiesVisibleLocked(null, 0); 2781 mWindowManager.executeAppTransition(); 2782 return true; 2783 } 2784 return false; 2785 } 2786 2787 void handleAppCrashLocked(ProcessRecord app) { 2788 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2789 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2790 final int numStacks = stacks.size(); 2791 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 2792 final ActivityStack stack = stacks.get(stackNdx); 2793 stack.handleAppCrashLocked(app); 2794 } 2795 } 2796 } 2797 2798 boolean requestVisibleBehindLocked(ActivityRecord r, boolean visible) { 2799 final ActivityStack stack = r.task.stack; 2800 if (stack == null) { 2801 if (DEBUG_VISIBLE_BEHIND) Slog.d(TAG, "requestVisibleBehind: r=" + r + " visible=" + 2802 visible + " stack is null"); 2803 return false; 2804 } 2805 final boolean isVisible = stack.hasVisibleBehindActivity(); 2806 if (DEBUG_VISIBLE_BEHIND) Slog.d(TAG, "requestVisibleBehind r=" + r + " visible=" + 2807 visible + " isVisible=" + isVisible); 2808 2809 final ActivityRecord top = topRunningActivityLocked(); 2810 if (top == null || top == r || (visible == isVisible)) { 2811 if (DEBUG_VISIBLE_BEHIND) Slog.d(TAG, "requestVisibleBehind: quick return"); 2812 stack.setVisibleBehindActivity(visible ? r : null); 2813 return true; 2814 } 2815 2816 // A non-top activity is reporting a visibility change. 2817 if (visible && top.fullscreen) { 2818 // Let the caller know that it can't be seen. 2819 if (DEBUG_VISIBLE_BEHIND) Slog.d(TAG, "requestVisibleBehind: returning top.fullscreen=" 2820 + top.fullscreen + " top.state=" + top.state + " top.app=" + top.app + 2821 " top.app.thread=" + top.app.thread); 2822 return false; 2823 } else if (!visible && stack.getVisibleBehindActivity() != r) { 2824 // Only the activity set as currently visible behind should actively reset its 2825 // visible behind state. 2826 if (DEBUG_VISIBLE_BEHIND) Slog.d(TAG, "requestVisibleBehind: returning visible=" 2827 + visible + " stack.getVisibleBehindActivity()=" + 2828 stack.getVisibleBehindActivity() + " r=" + r); 2829 return false; 2830 } 2831 2832 stack.setVisibleBehindActivity(visible ? r : null); 2833 if (!visible) { 2834 // Make the activity immediately above r opaque. 2835 final ActivityRecord next = stack.findNextTranslucentActivity(r); 2836 if (next != null) { 2837 mService.convertFromTranslucent(next.appToken); 2838 } 2839 } 2840 if (top.app != null && top.app.thread != null) { 2841 // Notify the top app of the change. 2842 try { 2843 top.app.thread.scheduleBackgroundVisibleBehindChanged(top.appToken, visible); 2844 } catch (RemoteException e) { 2845 } 2846 } 2847 return true; 2848 } 2849 2850 // Called when WindowManager has finished animating the launchingBehind activity to the back. 2851 void handleLaunchTaskBehindCompleteLocked(ActivityRecord r) { 2852 r.mLaunchTaskBehind = false; 2853 final TaskRecord task = r.task; 2854 task.setLastThumbnail(task.stack.screenshotActivities(r)); 2855 mService.addRecentTaskLocked(task); 2856 mWindowManager.setAppVisibility(r.appToken, false); 2857 } 2858 2859 void scheduleLaunchTaskBehindComplete(IBinder token) { 2860 mHandler.obtainMessage(LAUNCH_TASK_BEHIND_COMPLETE, token).sendToTarget(); 2861 } 2862 2863 void ensureActivitiesVisibleLocked(ActivityRecord starting, int configChanges) { 2864 // First the front stacks. In case any are not fullscreen and are in front of home. 2865 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2866 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2867 final int topStackNdx = stacks.size() - 1; 2868 for (int stackNdx = topStackNdx; stackNdx >= 0; --stackNdx) { 2869 final ActivityStack stack = stacks.get(stackNdx); 2870 stack.ensureActivitiesVisibleLocked(starting, configChanges); 2871 } 2872 } 2873 } 2874 2875 void scheduleDestroyAllActivities(ProcessRecord app, String reason) { 2876 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2877 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2878 final int numStacks = stacks.size(); 2879 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 2880 final ActivityStack stack = stacks.get(stackNdx); 2881 stack.scheduleDestroyActivities(app, reason); 2882 } 2883 } 2884 } 2885 2886 void releaseSomeActivitiesLocked(ProcessRecord app, String reason) { 2887 // Examine all activities currently running in the process. 2888 TaskRecord firstTask = null; 2889 // Tasks is non-null only if two or more tasks are found. 2890 ArraySet<TaskRecord> tasks = null; 2891 if (DEBUG_RELEASE) Slog.d(TAG, "Trying to release some activities in " + app); 2892 for (int i=0; i<app.activities.size(); i++) { 2893 ActivityRecord r = app.activities.get(i); 2894 // First, if we find an activity that is in the process of being destroyed, 2895 // then we just aren't going to do anything for now; we want things to settle 2896 // down before we try to prune more activities. 2897 if (r.finishing || r.state == ActivityState.DESTROYING 2898 || r.state == ActivityState.DESTROYED) { 2899 if (DEBUG_RELEASE) Slog.d(TAG, "Abort release; already destroying: " + r); 2900 return; 2901 } 2902 // Don't consider any activies that are currently not in a state where they 2903 // can be destroyed. 2904 if (r.visible || !r.stopped || !r.haveState 2905 || r.state == ActivityState.RESUMED || r.state == ActivityState.PAUSING 2906 || r.state == ActivityState.PAUSED || r.state == ActivityState.STOPPING) { 2907 if (DEBUG_RELEASE) Slog.d(TAG, "Not releasing in-use activity: " + r); 2908 continue; 2909 } 2910 if (r.task != null) { 2911 if (DEBUG_RELEASE) Slog.d(TAG, "Collecting release task " + r.task 2912 + " from " + r); 2913 if (firstTask == null) { 2914 firstTask = r.task; 2915 } else if (firstTask != r.task) { 2916 if (tasks == null) { 2917 tasks = new ArraySet<>(); 2918 tasks.add(firstTask); 2919 } 2920 tasks.add(r.task); 2921 } 2922 } 2923 } 2924 if (tasks == null) { 2925 if (DEBUG_RELEASE) Slog.d(TAG, "Didn't find two or more tasks to release"); 2926 return; 2927 } 2928 // If we have activities in multiple tasks that are in a position to be destroyed, 2929 // let's iterate through the tasks and release the oldest one. 2930 final int numDisplays = mActivityDisplays.size(); 2931 for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) { 2932 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2933 // Step through all stacks starting from behind, to hit the oldest things first. 2934 for (int stackNdx = 0; stackNdx < stacks.size(); stackNdx++) { 2935 final ActivityStack stack = stacks.get(stackNdx); 2936 // Try to release activities in this stack; if we manage to, we are done. 2937 if (stack.releaseSomeActivitiesLocked(app, tasks, reason) > 0) { 2938 return; 2939 } 2940 } 2941 } 2942 } 2943 2944 boolean switchUserLocked(int userId, UserStartedState uss) { 2945 mUserStackInFront.put(mCurrentUser, getFocusedStack().getStackId()); 2946 final int restoreStackId = mUserStackInFront.get(userId, HOME_STACK_ID); 2947 mCurrentUser = userId; 2948 2949 mStartingUsers.add(uss); 2950 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2951 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2952 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2953 final ActivityStack stack = stacks.get(stackNdx); 2954 stack.switchUserLocked(userId); 2955 TaskRecord task = stack.topTask(); 2956 if (task != null) { 2957 mWindowManager.moveTaskToTop(task.taskId); 2958 } 2959 } 2960 } 2961 2962 ActivityStack stack = getStack(restoreStackId); 2963 if (stack == null) { 2964 stack = mHomeStack; 2965 } 2966 final boolean homeInFront = stack.isHomeStack(); 2967 if (stack.isOnHomeDisplay()) { 2968 moveHomeStack(homeInFront); 2969 TaskRecord task = stack.topTask(); 2970 if (task != null) { 2971 mWindowManager.moveTaskToTop(task.taskId); 2972 } 2973 } else { 2974 // Stack was moved to another display while user was swapped out. 2975 resumeHomeStackTask(HOME_ACTIVITY_TYPE, null); 2976 } 2977 return homeInFront; 2978 } 2979 2980 /** 2981 * Add background users to send boot completed events to. 2982 * @param userId The user being started in the background 2983 * @param uss The state object for the user. 2984 */ 2985 public void startBackgroundUserLocked(int userId, UserStartedState uss) { 2986 mStartingBackgroundUsers.add(uss); 2987 } 2988 2989 final ArrayList<ActivityRecord> processStoppingActivitiesLocked(boolean remove) { 2990 int N = mStoppingActivities.size(); 2991 if (N <= 0) return null; 2992 2993 ArrayList<ActivityRecord> stops = null; 2994 2995 final boolean nowVisible = allResumedActivitiesVisible(); 2996 for (int i=0; i<N; i++) { 2997 ActivityRecord s = mStoppingActivities.get(i); 2998 if (localLOGV) Slog.v(TAG, "Stopping " + s + ": nowVisible=" 2999 + nowVisible + " waitingVisible=" + s.waitingVisible 3000 + " finishing=" + s.finishing); 3001 if (s.waitingVisible && nowVisible) { 3002 mWaitingVisibleActivities.remove(s); 3003 s.waitingVisible = false; 3004 if (s.finishing) { 3005 // If this activity is finishing, it is sitting on top of 3006 // everyone else but we now know it is no longer needed... 3007 // so get rid of it. Otherwise, we need to go through the 3008 // normal flow and hide it once we determine that it is 3009 // hidden by the activities in front of it. 3010 if (localLOGV) Slog.v(TAG, "Before stopping, can hide: " + s); 3011 mWindowManager.setAppVisibility(s.appToken, false); 3012 } 3013 } 3014 if ((!s.waitingVisible || mService.isSleepingOrShuttingDown()) && remove) { 3015 if (localLOGV) Slog.v(TAG, "Ready to stop: " + s); 3016 if (stops == null) { 3017 stops = new ArrayList<ActivityRecord>(); 3018 } 3019 stops.add(s); 3020 mStoppingActivities.remove(i); 3021 N--; 3022 i--; 3023 } 3024 } 3025 3026 return stops; 3027 } 3028 3029 void validateTopActivitiesLocked() { 3030 // FIXME 3031/* for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 3032 final ActivityStack stack = stacks.get(stackNdx); 3033 final ActivityRecord r = stack.topRunningActivityLocked(null); 3034 final ActivityState state = r == null ? ActivityState.DESTROYED : r.state; 3035 if (isFrontStack(stack)) { 3036 if (r == null) { 3037 Slog.e(TAG, "validateTop...: null top activity, stack=" + stack); 3038 } else { 3039 final ActivityRecord pausing = stack.mPausingActivity; 3040 if (pausing != null && pausing == r) { 3041 Slog.e(TAG, "validateTop...: top stack has pausing activity r=" + r + 3042 " state=" + state); 3043 } 3044 if (state != ActivityState.INITIALIZING && state != ActivityState.RESUMED) { 3045 Slog.e(TAG, "validateTop...: activity in front not resumed r=" + r + 3046 " state=" + state); 3047 } 3048 } 3049 } else { 3050 final ActivityRecord resumed = stack.mResumedActivity; 3051 if (resumed != null && resumed == r) { 3052 Slog.e(TAG, "validateTop...: back stack has resumed activity r=" + r + 3053 " state=" + state); 3054 } 3055 if (r != null && (state == ActivityState.INITIALIZING 3056 || state == ActivityState.RESUMED)) { 3057 Slog.e(TAG, "validateTop...: activity in back resumed r=" + r + 3058 " state=" + state); 3059 } 3060 } 3061 } 3062*/ 3063 } 3064 3065 public void dump(PrintWriter pw, String prefix) { 3066 pw.print(prefix); pw.print("mFocusedStack=" + mFocusedStack); 3067 pw.print(" mLastFocusedStack="); pw.println(mLastFocusedStack); 3068 pw.print(prefix); pw.println("mSleepTimeout=" + mSleepTimeout); 3069 pw.print(prefix); pw.println("mCurTaskId=" + mCurTaskId); 3070 pw.print(prefix); pw.println("mUserStackInFront=" + mUserStackInFront); 3071 pw.print(prefix); pw.println("mActivityContainers=" + mActivityContainers); 3072 } 3073 3074 ArrayList<ActivityRecord> getDumpActivitiesLocked(String name) { 3075 return getFocusedStack().getDumpActivitiesLocked(name); 3076 } 3077 3078 static boolean printThisActivity(PrintWriter pw, ActivityRecord activity, String dumpPackage, 3079 boolean needSep, String prefix) { 3080 if (activity != null) { 3081 if (dumpPackage == null || dumpPackage.equals(activity.packageName)) { 3082 if (needSep) { 3083 pw.println(); 3084 } 3085 pw.print(prefix); 3086 pw.println(activity); 3087 return true; 3088 } 3089 } 3090 return false; 3091 } 3092 3093 boolean dumpActivitiesLocked(FileDescriptor fd, PrintWriter pw, boolean dumpAll, 3094 boolean dumpClient, String dumpPackage) { 3095 boolean printed = false; 3096 boolean needSep = false; 3097 for (int displayNdx = 0; displayNdx < mActivityDisplays.size(); ++displayNdx) { 3098 ActivityDisplay activityDisplay = mActivityDisplays.valueAt(displayNdx); 3099 pw.print("Display #"); pw.print(activityDisplay.mDisplayId); 3100 pw.println(" (activities from bottom to top):"); 3101 ArrayList<ActivityStack> stacks = activityDisplay.mStacks; 3102 final int numStacks = stacks.size(); 3103 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 3104 final ActivityStack stack = stacks.get(stackNdx); 3105 StringBuilder stackHeader = new StringBuilder(128); 3106 stackHeader.append(" Stack #"); 3107 stackHeader.append(stack.mStackId); 3108 stackHeader.append(":"); 3109 printed |= stack.dumpActivitiesLocked(fd, pw, dumpAll, dumpClient, dumpPackage, 3110 needSep, stackHeader.toString()); 3111 printed |= dumpHistoryList(fd, pw, stack.mLRUActivities, " ", "Run", false, 3112 !dumpAll, false, dumpPackage, true, 3113 " Running activities (most recent first):", null); 3114 3115 needSep = printed; 3116 boolean pr = printThisActivity(pw, stack.mPausingActivity, dumpPackage, needSep, 3117 " mPausingActivity: "); 3118 if (pr) { 3119 printed = true; 3120 needSep = false; 3121 } 3122 pr = printThisActivity(pw, stack.mResumedActivity, dumpPackage, needSep, 3123 " mResumedActivity: "); 3124 if (pr) { 3125 printed = true; 3126 needSep = false; 3127 } 3128 if (dumpAll) { 3129 pr = printThisActivity(pw, stack.mLastPausedActivity, dumpPackage, needSep, 3130 " mLastPausedActivity: "); 3131 if (pr) { 3132 printed = true; 3133 needSep = true; 3134 } 3135 printed |= printThisActivity(pw, stack.mLastNoHistoryActivity, dumpPackage, 3136 needSep, " mLastNoHistoryActivity: "); 3137 } 3138 needSep = printed; 3139 } 3140 } 3141 3142 printed |= dumpHistoryList(fd, pw, mFinishingActivities, " ", "Fin", false, !dumpAll, 3143 false, dumpPackage, true, " Activities waiting to finish:", null); 3144 printed |= dumpHistoryList(fd, pw, mStoppingActivities, " ", "Stop", false, !dumpAll, 3145 false, dumpPackage, true, " Activities waiting to stop:", null); 3146 printed |= dumpHistoryList(fd, pw, mWaitingVisibleActivities, " ", "Wait", false, !dumpAll, 3147 false, dumpPackage, true, " Activities waiting for another to become visible:", 3148 null); 3149 printed |= dumpHistoryList(fd, pw, mGoingToSleepActivities, " ", "Sleep", false, !dumpAll, 3150 false, dumpPackage, true, " Activities waiting to sleep:", null); 3151 printed |= dumpHistoryList(fd, pw, mGoingToSleepActivities, " ", "Sleep", false, !dumpAll, 3152 false, dumpPackage, true, " Activities waiting to sleep:", null); 3153 3154 return printed; 3155 } 3156 3157 static boolean dumpHistoryList(FileDescriptor fd, PrintWriter pw, List<ActivityRecord> list, 3158 String prefix, String label, boolean complete, boolean brief, boolean client, 3159 String dumpPackage, boolean needNL, String header1, String header2) { 3160 TaskRecord lastTask = null; 3161 String innerPrefix = null; 3162 String[] args = null; 3163 boolean printed = false; 3164 for (int i=list.size()-1; i>=0; i--) { 3165 final ActivityRecord r = list.get(i); 3166 if (dumpPackage != null && !dumpPackage.equals(r.packageName)) { 3167 continue; 3168 } 3169 if (innerPrefix == null) { 3170 innerPrefix = prefix + " "; 3171 args = new String[0]; 3172 } 3173 printed = true; 3174 final boolean full = !brief && (complete || !r.isInHistory()); 3175 if (needNL) { 3176 pw.println(""); 3177 needNL = false; 3178 } 3179 if (header1 != null) { 3180 pw.println(header1); 3181 header1 = null; 3182 } 3183 if (header2 != null) { 3184 pw.println(header2); 3185 header2 = null; 3186 } 3187 if (lastTask != r.task) { 3188 lastTask = r.task; 3189 pw.print(prefix); 3190 pw.print(full ? "* " : " "); 3191 pw.println(lastTask); 3192 if (full) { 3193 lastTask.dump(pw, prefix + " "); 3194 } else if (complete) { 3195 // Complete + brief == give a summary. Isn't that obvious?!? 3196 if (lastTask.intent != null) { 3197 pw.print(prefix); pw.print(" "); 3198 pw.println(lastTask.intent.toInsecureStringWithClip()); 3199 } 3200 } 3201 } 3202 pw.print(prefix); pw.print(full ? " * " : " "); pw.print(label); 3203 pw.print(" #"); pw.print(i); pw.print(": "); 3204 pw.println(r); 3205 if (full) { 3206 r.dump(pw, innerPrefix); 3207 } else if (complete) { 3208 // Complete + brief == give a summary. Isn't that obvious?!? 3209 pw.print(innerPrefix); pw.println(r.intent.toInsecureString()); 3210 if (r.app != null) { 3211 pw.print(innerPrefix); pw.println(r.app); 3212 } 3213 } 3214 if (client && r.app != null && r.app.thread != null) { 3215 // flush anything that is already in the PrintWriter since the thread is going 3216 // to write to the file descriptor directly 3217 pw.flush(); 3218 try { 3219 TransferPipe tp = new TransferPipe(); 3220 try { 3221 r.app.thread.dumpActivity(tp.getWriteFd().getFileDescriptor(), 3222 r.appToken, innerPrefix, args); 3223 // Short timeout, since blocking here can 3224 // deadlock with the application. 3225 tp.go(fd, 2000); 3226 } finally { 3227 tp.kill(); 3228 } 3229 } catch (IOException e) { 3230 pw.println(innerPrefix + "Failure while dumping the activity: " + e); 3231 } catch (RemoteException e) { 3232 pw.println(innerPrefix + "Got a RemoteException while dumping the activity"); 3233 } 3234 needNL = true; 3235 } 3236 } 3237 return printed; 3238 } 3239 3240 void scheduleIdleTimeoutLocked(ActivityRecord next) { 3241 if (DEBUG_IDLE) Slog.d(TAG, "scheduleIdleTimeoutLocked: Callers=" + Debug.getCallers(4)); 3242 Message msg = mHandler.obtainMessage(IDLE_TIMEOUT_MSG, next); 3243 mHandler.sendMessageDelayed(msg, IDLE_TIMEOUT); 3244 } 3245 3246 final void scheduleIdleLocked() { 3247 mHandler.sendEmptyMessage(IDLE_NOW_MSG); 3248 } 3249 3250 void removeTimeoutsForActivityLocked(ActivityRecord r) { 3251 if (DEBUG_IDLE) Slog.d(TAG, "removeTimeoutsForActivity: Callers=" + Debug.getCallers(4)); 3252 mHandler.removeMessages(IDLE_TIMEOUT_MSG, r); 3253 } 3254 3255 final void scheduleResumeTopActivities() { 3256 if (!mHandler.hasMessages(RESUME_TOP_ACTIVITY_MSG)) { 3257 mHandler.sendEmptyMessage(RESUME_TOP_ACTIVITY_MSG); 3258 } 3259 } 3260 3261 void removeSleepTimeouts() { 3262 mSleepTimeout = false; 3263 mHandler.removeMessages(SLEEP_TIMEOUT_MSG); 3264 } 3265 3266 final void scheduleSleepTimeout() { 3267 removeSleepTimeouts(); 3268 mHandler.sendEmptyMessageDelayed(SLEEP_TIMEOUT_MSG, SLEEP_TIMEOUT); 3269 } 3270 3271 @Override 3272 public void onDisplayAdded(int displayId) { 3273 Slog.v(TAG, "Display added displayId=" + displayId); 3274 mHandler.sendMessage(mHandler.obtainMessage(HANDLE_DISPLAY_ADDED, displayId, 0)); 3275 } 3276 3277 @Override 3278 public void onDisplayRemoved(int displayId) { 3279 Slog.v(TAG, "Display removed displayId=" + displayId); 3280 mHandler.sendMessage(mHandler.obtainMessage(HANDLE_DISPLAY_REMOVED, displayId, 0)); 3281 } 3282 3283 @Override 3284 public void onDisplayChanged(int displayId) { 3285 Slog.v(TAG, "Display changed displayId=" + displayId); 3286 mHandler.sendMessage(mHandler.obtainMessage(HANDLE_DISPLAY_CHANGED, displayId, 0)); 3287 } 3288 3289 public void handleDisplayAddedLocked(int displayId) { 3290 boolean newDisplay; 3291 synchronized (mService) { 3292 newDisplay = mActivityDisplays.get(displayId) == null; 3293 if (newDisplay) { 3294 ActivityDisplay activityDisplay = new ActivityDisplay(displayId); 3295 if (activityDisplay.mDisplay == null) { 3296 Slog.w(TAG, "Display " + displayId + " gone before initialization complete"); 3297 return; 3298 } 3299 mActivityDisplays.put(displayId, activityDisplay); 3300 } 3301 } 3302 if (newDisplay) { 3303 mWindowManager.onDisplayAdded(displayId); 3304 } 3305 } 3306 3307 public void handleDisplayRemovedLocked(int displayId) { 3308 synchronized (mService) { 3309 ActivityDisplay activityDisplay = mActivityDisplays.get(displayId); 3310 if (activityDisplay != null) { 3311 ArrayList<ActivityStack> stacks = activityDisplay.mStacks; 3312 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 3313 stacks.get(stackNdx).mActivityContainer.detachLocked(); 3314 } 3315 mActivityDisplays.remove(displayId); 3316 } 3317 } 3318 mWindowManager.onDisplayRemoved(displayId); 3319 } 3320 3321 public void handleDisplayChangedLocked(int displayId) { 3322 synchronized (mService) { 3323 ActivityDisplay activityDisplay = mActivityDisplays.get(displayId); 3324 if (activityDisplay != null) { 3325 // TODO: Update the bounds. 3326 } 3327 } 3328 mWindowManager.onDisplayChanged(displayId); 3329 } 3330 3331 StackInfo getStackInfo(ActivityStack stack) { 3332 StackInfo info = new StackInfo(); 3333 mWindowManager.getStackBounds(stack.mStackId, info.bounds); 3334 info.displayId = Display.DEFAULT_DISPLAY; 3335 info.stackId = stack.mStackId; 3336 3337 ArrayList<TaskRecord> tasks = stack.getAllTasks(); 3338 final int numTasks = tasks.size(); 3339 int[] taskIds = new int[numTasks]; 3340 String[] taskNames = new String[numTasks]; 3341 for (int i = 0; i < numTasks; ++i) { 3342 final TaskRecord task = tasks.get(i); 3343 taskIds[i] = task.taskId; 3344 taskNames[i] = task.origActivity != null ? task.origActivity.flattenToString() 3345 : task.realActivity != null ? task.realActivity.flattenToString() 3346 : task.getTopActivity() != null ? task.getTopActivity().packageName 3347 : "unknown"; 3348 } 3349 info.taskIds = taskIds; 3350 info.taskNames = taskNames; 3351 return info; 3352 } 3353 3354 StackInfo getStackInfoLocked(int stackId) { 3355 ActivityStack stack = getStack(stackId); 3356 if (stack != null) { 3357 return getStackInfo(stack); 3358 } 3359 return null; 3360 } 3361 3362 ArrayList<StackInfo> getAllStackInfosLocked() { 3363 ArrayList<StackInfo> list = new ArrayList<StackInfo>(); 3364 for (int displayNdx = 0; displayNdx < mActivityDisplays.size(); ++displayNdx) { 3365 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 3366 for (int ndx = stacks.size() - 1; ndx >= 0; --ndx) { 3367 list.add(getStackInfo(stacks.get(ndx))); 3368 } 3369 } 3370 return list; 3371 } 3372 3373 void showLockTaskToast() { 3374 mLockTaskNotify.showToast(mLockTaskIsLocked); 3375 } 3376 3377 void setLockTaskModeLocked(TaskRecord task, boolean isLocked) { 3378 if (task == null) { 3379 // Take out of lock task mode if necessary 3380 if (mLockTaskModeTask != null) { 3381 final Message lockTaskMsg = Message.obtain(); 3382 lockTaskMsg.arg1 = mLockTaskModeTask.userId; 3383 lockTaskMsg.what = LOCK_TASK_END_MSG; 3384 mLockTaskModeTask = null; 3385 mHandler.sendMessage(lockTaskMsg); 3386 } 3387 return; 3388 } 3389 if (isLockTaskModeViolation(task)) { 3390 Slog.e(TAG, "setLockTaskMode: Attempt to start a second Lock Task Mode task."); 3391 return; 3392 } 3393 mLockTaskModeTask = task; 3394 findTaskToMoveToFrontLocked(task, 0, null); 3395 resumeTopActivitiesLocked(); 3396 3397 final Message lockTaskMsg = Message.obtain(); 3398 lockTaskMsg.obj = mLockTaskModeTask.intent.getComponent().getPackageName(); 3399 lockTaskMsg.arg1 = mLockTaskModeTask.userId; 3400 lockTaskMsg.what = LOCK_TASK_START_MSG; 3401 lockTaskMsg.arg2 = !isLocked ? 1 : 0; 3402 mHandler.sendMessage(lockTaskMsg); 3403 } 3404 3405 boolean isLockTaskModeViolation(TaskRecord task) { 3406 return mLockTaskModeTask != null && mLockTaskModeTask != task; 3407 } 3408 3409 void endLockTaskModeIfTaskEnding(TaskRecord task) { 3410 if (mLockTaskModeTask != null && mLockTaskModeTask == task) { 3411 final Message lockTaskMsg = Message.obtain(); 3412 lockTaskMsg.arg1 = mLockTaskModeTask.userId; 3413 lockTaskMsg.what = LOCK_TASK_END_MSG; 3414 mLockTaskModeTask = null; 3415 mHandler.sendMessage(lockTaskMsg); 3416 } 3417 } 3418 3419 boolean isInLockTaskMode() { 3420 return mLockTaskModeTask != null; 3421 } 3422 3423 private final class ActivityStackSupervisorHandler extends Handler { 3424 3425 public ActivityStackSupervisorHandler(Looper looper) { 3426 super(looper); 3427 } 3428 3429 void activityIdleInternal(ActivityRecord r) { 3430 synchronized (mService) { 3431 activityIdleInternalLocked(r != null ? r.appToken : null, true, null); 3432 } 3433 } 3434 3435 @Override 3436 public void handleMessage(Message msg) { 3437 switch (msg.what) { 3438 case IDLE_TIMEOUT_MSG: { 3439 if (DEBUG_IDLE) Slog.d(TAG, "handleMessage: IDLE_TIMEOUT_MSG: r=" + msg.obj); 3440 if (mService.mDidDexOpt) { 3441 mService.mDidDexOpt = false; 3442 Message nmsg = mHandler.obtainMessage(IDLE_TIMEOUT_MSG); 3443 nmsg.obj = msg.obj; 3444 mHandler.sendMessageDelayed(nmsg, IDLE_TIMEOUT); 3445 return; 3446 } 3447 // We don't at this point know if the activity is fullscreen, 3448 // so we need to be conservative and assume it isn't. 3449 activityIdleInternal((ActivityRecord)msg.obj); 3450 } break; 3451 case IDLE_NOW_MSG: { 3452 if (DEBUG_IDLE) Slog.d(TAG, "handleMessage: IDLE_NOW_MSG: r=" + msg.obj); 3453 activityIdleInternal((ActivityRecord)msg.obj); 3454 } break; 3455 case RESUME_TOP_ACTIVITY_MSG: { 3456 synchronized (mService) { 3457 resumeTopActivitiesLocked(); 3458 } 3459 } break; 3460 case SLEEP_TIMEOUT_MSG: { 3461 synchronized (mService) { 3462 if (mService.isSleepingOrShuttingDown()) { 3463 Slog.w(TAG, "Sleep timeout! Sleeping now."); 3464 mSleepTimeout = true; 3465 checkReadyForSleepLocked(); 3466 } 3467 } 3468 } break; 3469 case LAUNCH_TIMEOUT_MSG: { 3470 if (mService.mDidDexOpt) { 3471 mService.mDidDexOpt = false; 3472 mHandler.sendEmptyMessageDelayed(LAUNCH_TIMEOUT_MSG, LAUNCH_TIMEOUT); 3473 return; 3474 } 3475 synchronized (mService) { 3476 if (mLaunchingActivity.isHeld()) { 3477 Slog.w(TAG, "Launch timeout has expired, giving up wake lock!"); 3478 if (VALIDATE_WAKE_LOCK_CALLER 3479 && Binder.getCallingUid() != Process.myUid()) { 3480 throw new IllegalStateException("Calling must be system uid"); 3481 } 3482 mLaunchingActivity.release(); 3483 } 3484 } 3485 } break; 3486 case HANDLE_DISPLAY_ADDED: { 3487 handleDisplayAddedLocked(msg.arg1); 3488 } break; 3489 case HANDLE_DISPLAY_CHANGED: { 3490 handleDisplayChangedLocked(msg.arg1); 3491 } break; 3492 case HANDLE_DISPLAY_REMOVED: { 3493 handleDisplayRemovedLocked(msg.arg1); 3494 } break; 3495 case CONTAINER_CALLBACK_VISIBILITY: { 3496 final ActivityContainer container = (ActivityContainer) msg.obj; 3497 final IActivityContainerCallback callback = container.mCallback; 3498 if (callback != null) { 3499 try { 3500 callback.setVisible(container.asBinder(), msg.arg1 == 1); 3501 } catch (RemoteException e) { 3502 } 3503 } 3504 } break; 3505 case LOCK_TASK_START_MSG: { 3506 // When lock task starts, we disable the status bars. 3507 try { 3508 if (mLockTaskNotify == null) { 3509 mLockTaskNotify = new LockTaskNotify(mService.mContext); 3510 } 3511 mLockTaskNotify.show(true); 3512 mLockTaskIsLocked = msg.arg2 == 0; 3513 if (getStatusBarService() != null) { 3514 int flags = 3515 StatusBarManager.DISABLE_MASK ^ StatusBarManager.DISABLE_BACK; 3516 if (!mLockTaskIsLocked) { 3517 flags ^= StatusBarManager.DISABLE_HOME 3518 | StatusBarManager.DISABLE_RECENT; 3519 } 3520 getStatusBarService().disable(flags, mToken, 3521 mService.mContext.getPackageName()); 3522 } 3523 mWindowManager.disableKeyguard(mToken, LOCK_TASK_TAG); 3524 if (getDevicePolicyManager() != null) { 3525 getDevicePolicyManager().notifyLockTaskModeChanged(true, 3526 (String)msg.obj, msg.arg1); 3527 } 3528 } catch (RemoteException ex) { 3529 throw new RuntimeException(ex); 3530 } 3531 } break; 3532 case LOCK_TASK_END_MSG: { 3533 // When lock task ends, we enable the status bars. 3534 try { 3535 if (getStatusBarService() != null) { 3536 getStatusBarService().disable(StatusBarManager.DISABLE_NONE, mToken, 3537 mService.mContext.getPackageName()); 3538 } 3539 mWindowManager.reenableKeyguard(mToken); 3540 if (getDevicePolicyManager() != null) { 3541 getDevicePolicyManager().notifyLockTaskModeChanged(false, null, 3542 msg.arg1); 3543 } 3544 if (mLockTaskNotify == null) { 3545 mLockTaskNotify = new LockTaskNotify(mService.mContext); 3546 } 3547 mLockTaskNotify.show(false); 3548 try { 3549 boolean shouldLockKeyguard = Settings.System.getInt( 3550 mService.mContext.getContentResolver(), 3551 Settings.System.LOCK_TO_APP_EXIT_LOCKED) != 0; 3552 if (!mLockTaskIsLocked && shouldLockKeyguard) { 3553 mWindowManager.lockNow(null); 3554 mWindowManager.dismissKeyguard(); 3555 new LockPatternUtils(mService.mContext) 3556 .requireCredentialEntry(UserHandle.USER_ALL); 3557 } 3558 } catch (SettingNotFoundException e) { 3559 // No setting, don't lock. 3560 } 3561 } catch (RemoteException ex) { 3562 throw new RuntimeException(ex); 3563 } 3564 } break; 3565 case CONTAINER_CALLBACK_TASK_LIST_EMPTY: { 3566 final ActivityContainer container = (ActivityContainer) msg.obj; 3567 final IActivityContainerCallback callback = container.mCallback; 3568 if (callback != null) { 3569 try { 3570 callback.onAllActivitiesComplete(container.asBinder()); 3571 } catch (RemoteException e) { 3572 } 3573 } 3574 } break; 3575 case CONTAINER_TASK_LIST_EMPTY_TIMEOUT: { 3576 synchronized (mService) { 3577 Slog.w(TAG, "Timeout waiting for all activities in task to finish. " + 3578 msg.obj); 3579 final ActivityContainer container = (ActivityContainer) msg.obj; 3580 container.mStack.finishAllActivitiesLocked(true); 3581 container.onTaskListEmptyLocked(); 3582 } 3583 } break; 3584 case LAUNCH_TASK_BEHIND_COMPLETE: { 3585 synchronized (mService) { 3586 ActivityRecord r = ActivityRecord.forToken((IBinder) msg.obj); 3587 if (r != null) { 3588 handleLaunchTaskBehindCompleteLocked(r); 3589 } 3590 } 3591 } break; 3592 } 3593 } 3594 } 3595 3596 class ActivityContainer extends android.app.IActivityContainer.Stub { 3597 final static int FORCE_NEW_TASK_FLAGS = Intent.FLAG_ACTIVITY_NEW_TASK | 3598 Intent.FLAG_ACTIVITY_MULTIPLE_TASK | Intent.FLAG_ACTIVITY_NO_ANIMATION; 3599 final int mStackId; 3600 IActivityContainerCallback mCallback = null; 3601 final ActivityStack mStack; 3602 ActivityRecord mParentActivity = null; 3603 String mIdString; 3604 3605 boolean mVisible = true; 3606 3607 /** Display this ActivityStack is currently on. Null if not attached to a Display. */ 3608 ActivityDisplay mActivityDisplay; 3609 3610 final static int CONTAINER_STATE_HAS_SURFACE = 0; 3611 final static int CONTAINER_STATE_NO_SURFACE = 1; 3612 final static int CONTAINER_STATE_FINISHING = 2; 3613 int mContainerState = CONTAINER_STATE_HAS_SURFACE; 3614 3615 ActivityContainer(int stackId) { 3616 synchronized (mService) { 3617 mStackId = stackId; 3618 mStack = new ActivityStack(this); 3619 mIdString = "ActivtyContainer{" + mStackId + "}"; 3620 if (DEBUG_STACK) Slog.d(TAG, "Creating " + this); 3621 } 3622 } 3623 3624 void attachToDisplayLocked(ActivityDisplay activityDisplay) { 3625 if (DEBUG_STACK) Slog.d(TAG, "attachToDisplayLocked: " + this 3626 + " to display=" + activityDisplay); 3627 mActivityDisplay = activityDisplay; 3628 mStack.mDisplayId = activityDisplay.mDisplayId; 3629 mStack.mStacks = activityDisplay.mStacks; 3630 3631 activityDisplay.attachActivities(mStack); 3632 mWindowManager.attachStack(mStackId, activityDisplay.mDisplayId); 3633 } 3634 3635 @Override 3636 public void attachToDisplay(int displayId) { 3637 synchronized (mService) { 3638 ActivityDisplay activityDisplay = mActivityDisplays.get(displayId); 3639 if (activityDisplay == null) { 3640 return; 3641 } 3642 attachToDisplayLocked(activityDisplay); 3643 } 3644 } 3645 3646 @Override 3647 public int getDisplayId() { 3648 synchronized (mService) { 3649 if (mActivityDisplay != null) { 3650 return mActivityDisplay.mDisplayId; 3651 } 3652 } 3653 return -1; 3654 } 3655 3656 @Override 3657 public boolean injectEvent(InputEvent event) { 3658 final long origId = Binder.clearCallingIdentity(); 3659 try { 3660 synchronized (mService) { 3661 if (mActivityDisplay != null) { 3662 return mInputManagerInternal.injectInputEvent(event, 3663 mActivityDisplay.mDisplayId, 3664 InputManager.INJECT_INPUT_EVENT_MODE_ASYNC); 3665 } 3666 } 3667 return false; 3668 } finally { 3669 Binder.restoreCallingIdentity(origId); 3670 } 3671 } 3672 3673 @Override 3674 public void release() { 3675 synchronized (mService) { 3676 if (mContainerState == CONTAINER_STATE_FINISHING) { 3677 return; 3678 } 3679 mContainerState = CONTAINER_STATE_FINISHING; 3680 3681 final Message msg = 3682 mHandler.obtainMessage(CONTAINER_TASK_LIST_EMPTY_TIMEOUT, this); 3683 mHandler.sendMessageDelayed(msg, 2000); 3684 3685 long origId = Binder.clearCallingIdentity(); 3686 try { 3687 mStack.finishAllActivitiesLocked(false); 3688 removePendingActivityLaunchesLocked(mStack); 3689 } finally { 3690 Binder.restoreCallingIdentity(origId); 3691 } 3692 } 3693 } 3694 3695 protected void detachLocked() { 3696 if (DEBUG_STACK) Slog.d(TAG, "detachLocked: " + this + " from display=" 3697 + mActivityDisplay + " Callers=" + Debug.getCallers(2)); 3698 if (mActivityDisplay != null) { 3699 mActivityDisplay.detachActivitiesLocked(mStack); 3700 mActivityDisplay = null; 3701 mStack.mDisplayId = -1; 3702 mStack.mStacks = null; 3703 mWindowManager.detachStack(mStackId); 3704 } 3705 } 3706 3707 @Override 3708 public final int startActivity(Intent intent) { 3709 mService.enforceNotIsolatedCaller("ActivityContainer.startActivity"); 3710 int userId = mService.handleIncomingUser(Binder.getCallingPid(), 3711 Binder.getCallingUid(), mCurrentUser, false, 3712 ActivityManagerService.ALLOW_FULL_ONLY, "ActivityContainer", null); 3713 // TODO: Switch to user app stacks here. 3714 intent.addFlags(FORCE_NEW_TASK_FLAGS); 3715 String mimeType = intent.getType(); 3716 if (mimeType == null && intent.getData() != null 3717 && "content".equals(intent.getData().getScheme())) { 3718 mimeType = mService.getProviderMimeType(intent.getData(), userId); 3719 } 3720 return startActivityMayWait(null, -1, null, intent, mimeType, null, null, null, null, 0, 3721 0, null, null, null, null, userId, this, null); 3722 } 3723 3724 @Override 3725 public final int startActivityIntentSender(IIntentSender intentSender) { 3726 mService.enforceNotIsolatedCaller("ActivityContainer.startActivityIntentSender"); 3727 3728 if (!(intentSender instanceof PendingIntentRecord)) { 3729 throw new IllegalArgumentException("Bad PendingIntent object"); 3730 } 3731 3732 return ((PendingIntentRecord)intentSender).sendInner(0, null, null, null, null, null, 3733 null, 0, FORCE_NEW_TASK_FLAGS, FORCE_NEW_TASK_FLAGS, null, this); 3734 } 3735 3736 private void checkEmbeddedAllowedInner(Intent intent, String resolvedType) { 3737 int userId = mService.handleIncomingUser(Binder.getCallingPid(), 3738 Binder.getCallingUid(), mCurrentUser, false, 3739 ActivityManagerService.ALLOW_FULL_ONLY, "ActivityContainer", null); 3740 if (resolvedType == null) { 3741 resolvedType = intent.getType(); 3742 if (resolvedType == null && intent.getData() != null 3743 && "content".equals(intent.getData().getScheme())) { 3744 resolvedType = mService.getProviderMimeType(intent.getData(), userId); 3745 } 3746 } 3747 ActivityInfo aInfo = resolveActivity(intent, resolvedType, 0, null, userId); 3748 if (aInfo != null && (aInfo.flags & ActivityInfo.FLAG_ALLOW_EMBEDDED) == 0) { 3749 throw new SecurityException( 3750 "Attempt to embed activity that has not set allowEmbedded=\"true\""); 3751 } 3752 } 3753 3754 /** Throw a SecurityException if allowEmbedded is not true */ 3755 @Override 3756 public final void checkEmbeddedAllowed(Intent intent) { 3757 checkEmbeddedAllowedInner(intent, null); 3758 } 3759 3760 /** Throw a SecurityException if allowEmbedded is not true */ 3761 @Override 3762 public final void checkEmbeddedAllowedIntentSender(IIntentSender intentSender) { 3763 if (!(intentSender instanceof PendingIntentRecord)) { 3764 throw new IllegalArgumentException("Bad PendingIntent object"); 3765 } 3766 PendingIntentRecord pendingIntent = (PendingIntentRecord) intentSender; 3767 checkEmbeddedAllowedInner(pendingIntent.key.requestIntent, 3768 pendingIntent.key.requestResolvedType); 3769 } 3770 3771 @Override 3772 public IBinder asBinder() { 3773 return this; 3774 } 3775 3776 @Override 3777 public void setSurface(Surface surface, int width, int height, int density) { 3778 mService.enforceNotIsolatedCaller("ActivityContainer.attachToSurface"); 3779 } 3780 3781 ActivityStackSupervisor getOuter() { 3782 return ActivityStackSupervisor.this; 3783 } 3784 3785 boolean isAttachedLocked() { 3786 return mActivityDisplay != null; 3787 } 3788 3789 void getBounds(Point outBounds) { 3790 synchronized (mService) { 3791 if (mActivityDisplay != null) { 3792 mActivityDisplay.getBounds(outBounds); 3793 } else { 3794 outBounds.set(0, 0); 3795 } 3796 } 3797 } 3798 3799 // TODO: Make sure every change to ActivityRecord.visible results in a call to this. 3800 void setVisible(boolean visible) { 3801 if (mVisible != visible) { 3802 mVisible = visible; 3803 if (mCallback != null) { 3804 mHandler.obtainMessage(CONTAINER_CALLBACK_VISIBILITY, visible ? 1 : 0, 3805 0 /* unused */, this).sendToTarget(); 3806 } 3807 } 3808 } 3809 3810 void setDrawn() { 3811 } 3812 3813 // You can always start a new task on a regular ActivityStack. 3814 boolean isEligibleForNewTasks() { 3815 return true; 3816 } 3817 3818 void onTaskListEmptyLocked() { 3819 } 3820 3821 @Override 3822 public String toString() { 3823 return mIdString + (mActivityDisplay == null ? "N" : "A"); 3824 } 3825 } 3826 3827 private class VirtualActivityContainer extends ActivityContainer { 3828 Surface mSurface; 3829 boolean mDrawn = false; 3830 3831 VirtualActivityContainer(ActivityRecord parent, IActivityContainerCallback callback) { 3832 super(getNextStackId()); 3833 mParentActivity = parent; 3834 mCallback = callback; 3835 mContainerState = CONTAINER_STATE_NO_SURFACE; 3836 mIdString = "VirtualActivityContainer{" + mStackId + ", parent=" + mParentActivity + "}"; 3837 } 3838 3839 @Override 3840 public void setSurface(Surface surface, int width, int height, int density) { 3841 super.setSurface(surface, width, height, density); 3842 3843 synchronized (mService) { 3844 final long origId = Binder.clearCallingIdentity(); 3845 try { 3846 setSurfaceLocked(surface, width, height, density); 3847 } finally { 3848 Binder.restoreCallingIdentity(origId); 3849 } 3850 } 3851 } 3852 3853 private void setSurfaceLocked(Surface surface, int width, int height, int density) { 3854 if (mContainerState == CONTAINER_STATE_FINISHING) { 3855 return; 3856 } 3857 VirtualActivityDisplay virtualActivityDisplay = 3858 (VirtualActivityDisplay) mActivityDisplay; 3859 if (virtualActivityDisplay == null) { 3860 virtualActivityDisplay = 3861 new VirtualActivityDisplay(width, height, density); 3862 mActivityDisplay = virtualActivityDisplay; 3863 mActivityDisplays.put(virtualActivityDisplay.mDisplayId, virtualActivityDisplay); 3864 attachToDisplayLocked(virtualActivityDisplay); 3865 } 3866 3867 if (mSurface != null) { 3868 mSurface.release(); 3869 } 3870 3871 mSurface = surface; 3872 if (surface != null) { 3873 mStack.resumeTopActivityLocked(null); 3874 } else { 3875 mContainerState = CONTAINER_STATE_NO_SURFACE; 3876 ((VirtualActivityDisplay) mActivityDisplay).setSurface(null); 3877 if (mStack.mPausingActivity == null && mStack.mResumedActivity != null) { 3878 mStack.startPausingLocked(false, true, false, false); 3879 } 3880 } 3881 3882 setSurfaceIfReadyLocked(); 3883 3884 if (DEBUG_STACK) Slog.d(TAG, "setSurface: " + this + " to display=" 3885 + virtualActivityDisplay); 3886 } 3887 3888 @Override 3889 boolean isAttachedLocked() { 3890 return mSurface != null && super.isAttachedLocked(); 3891 } 3892 3893 @Override 3894 void setDrawn() { 3895 synchronized (mService) { 3896 mDrawn = true; 3897 setSurfaceIfReadyLocked(); 3898 } 3899 } 3900 3901 // Never start a new task on an ActivityView if it isn't explicitly specified. 3902 @Override 3903 boolean isEligibleForNewTasks() { 3904 return false; 3905 } 3906 3907 void onTaskListEmptyLocked() { 3908 mHandler.removeMessages(CONTAINER_TASK_LIST_EMPTY_TIMEOUT, this); 3909 detachLocked(); 3910 deleteActivityContainer(this); 3911 mHandler.obtainMessage(CONTAINER_CALLBACK_TASK_LIST_EMPTY, this).sendToTarget(); 3912 } 3913 3914 private void setSurfaceIfReadyLocked() { 3915 if (DEBUG_STACK) Slog.v(TAG, "setSurfaceIfReadyLocked: mDrawn=" + mDrawn + 3916 " mContainerState=" + mContainerState + " mSurface=" + mSurface); 3917 if (mDrawn && mSurface != null && mContainerState == CONTAINER_STATE_NO_SURFACE) { 3918 ((VirtualActivityDisplay) mActivityDisplay).setSurface(mSurface); 3919 mContainerState = CONTAINER_STATE_HAS_SURFACE; 3920 } 3921 } 3922 } 3923 3924 /** Exactly one of these classes per Display in the system. Capable of holding zero or more 3925 * attached {@link ActivityStack}s */ 3926 class ActivityDisplay { 3927 /** Actual Display this object tracks. */ 3928 int mDisplayId; 3929 Display mDisplay; 3930 DisplayInfo mDisplayInfo = new DisplayInfo(); 3931 3932 /** All of the stacks on this display. Order matters, topmost stack is in front of all other 3933 * stacks, bottommost behind. Accessed directly by ActivityManager package classes */ 3934 final ArrayList<ActivityStack> mStacks = new ArrayList<ActivityStack>(); 3935 3936 ActivityRecord mVisibleBehindActivity; 3937 3938 ActivityDisplay() { 3939 } 3940 3941 // After instantiation, check that mDisplay is not null before using this. The alternative 3942 // is for this to throw an exception if mDisplayManager.getDisplay() returns null. 3943 ActivityDisplay(int displayId) { 3944 final Display display = mDisplayManager.getDisplay(displayId); 3945 if (display == null) { 3946 return; 3947 } 3948 init(display); 3949 } 3950 3951 void init(Display display) { 3952 mDisplay = display; 3953 mDisplayId = display.getDisplayId(); 3954 mDisplay.getDisplayInfo(mDisplayInfo); 3955 } 3956 3957 void attachActivities(ActivityStack stack) { 3958 if (DEBUG_STACK) Slog.v(TAG, "attachActivities: attaching " + stack + " to displayId=" 3959 + mDisplayId); 3960 mStacks.add(stack); 3961 } 3962 3963 void detachActivitiesLocked(ActivityStack stack) { 3964 if (DEBUG_STACK) Slog.v(TAG, "detachActivitiesLocked: detaching " + stack 3965 + " from displayId=" + mDisplayId); 3966 mStacks.remove(stack); 3967 } 3968 3969 void getBounds(Point bounds) { 3970 mDisplay.getDisplayInfo(mDisplayInfo); 3971 bounds.x = mDisplayInfo.appWidth; 3972 bounds.y = mDisplayInfo.appHeight; 3973 } 3974 3975 void setVisibleBehindActivity(ActivityRecord r) { 3976 mVisibleBehindActivity = r; 3977 } 3978 3979 boolean hasVisibleBehindActivity() { 3980 return mVisibleBehindActivity != null; 3981 } 3982 3983 @Override 3984 public String toString() { 3985 return "ActivityDisplay={" + mDisplayId + " numStacks=" + mStacks.size() + "}"; 3986 } 3987 } 3988 3989 class VirtualActivityDisplay extends ActivityDisplay { 3990 VirtualDisplay mVirtualDisplay; 3991 3992 VirtualActivityDisplay(int width, int height, int density) { 3993 DisplayManagerGlobal dm = DisplayManagerGlobal.getInstance(); 3994 mVirtualDisplay = dm.createVirtualDisplay(mService.mContext, null, 3995 VIRTUAL_DISPLAY_BASE_NAME, width, height, density, null, 3996 DisplayManager.VIRTUAL_DISPLAY_FLAG_PUBLIC | 3997 DisplayManager.VIRTUAL_DISPLAY_FLAG_OWN_CONTENT_ONLY, null, null); 3998 3999 init(mVirtualDisplay.getDisplay()); 4000 4001 mWindowManager.handleDisplayAdded(mDisplayId); 4002 } 4003 4004 void setSurface(Surface surface) { 4005 if (mVirtualDisplay != null) { 4006 mVirtualDisplay.setSurface(surface); 4007 } 4008 } 4009 4010 @Override 4011 void detachActivitiesLocked(ActivityStack stack) { 4012 super.detachActivitiesLocked(stack); 4013 if (mVirtualDisplay != null) { 4014 mVirtualDisplay.release(); 4015 mVirtualDisplay = null; 4016 } 4017 } 4018 4019 @Override 4020 public String toString() { 4021 return "VirtualActivityDisplay={" + mDisplayId + "}"; 4022 } 4023 } 4024 4025 private boolean isLeanbackOnlyDevice() { 4026 boolean onLeanbackOnly = false; 4027 try { 4028 onLeanbackOnly = AppGlobals.getPackageManager().hasSystemFeature( 4029 PackageManager.FEATURE_LEANBACK_ONLY); 4030 } catch (RemoteException e) { 4031 // noop 4032 } 4033 4034 return onLeanbackOnly; 4035 } 4036} 4037