ActivityStackSupervisor.java revision 1a7eaaa50e7f1a021129ebbe2f6ae1ac469b8812
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; 34 35import android.app.Activity; 36import android.app.ActivityManager; 37import android.app.ActivityManager.StackInfo; 38import android.app.ActivityOptions; 39import android.app.AppGlobals; 40import android.app.IActivityContainer; 41import android.app.IActivityContainerCallback; 42import android.app.IActivityManager; 43import android.app.IApplicationThread; 44import android.app.PendingIntent; 45import android.app.ActivityManager.RunningTaskInfo; 46import android.app.IActivityManager.WaitResult; 47import android.app.ResultInfo; 48import android.content.ComponentName; 49import android.content.Context; 50import android.content.IIntentSender; 51import android.content.Intent; 52import android.content.IntentSender; 53import android.content.pm.ActivityInfo; 54import android.content.pm.ApplicationInfo; 55import android.content.pm.PackageManager; 56import android.content.pm.ResolveInfo; 57import android.content.res.Configuration; 58import android.graphics.Point; 59import android.hardware.display.DisplayManager; 60import android.hardware.display.DisplayManager.DisplayListener; 61import android.hardware.display.DisplayManagerGlobal; 62import android.hardware.display.VirtualDisplay; 63import android.hardware.input.InputManager; 64import android.hardware.input.InputManagerInternal; 65import android.os.Binder; 66import android.os.Bundle; 67import android.os.Debug; 68import android.os.Handler; 69import android.os.IBinder; 70import android.os.Looper; 71import android.os.Message; 72import android.os.ParcelFileDescriptor; 73import android.os.PowerManager; 74import android.os.Process; 75import android.os.RemoteException; 76import android.os.SystemClock; 77import android.os.UserHandle; 78import android.service.voice.IVoiceInteractionSession; 79import android.util.EventLog; 80import android.util.Slog; 81import android.util.SparseArray; 82 83import android.util.SparseIntArray; 84import android.view.Display; 85import android.view.DisplayInfo; 86import android.view.InputEvent; 87import android.view.Surface; 88import com.android.internal.app.HeavyWeightSwitcherActivity; 89import com.android.internal.app.IVoiceInteractor; 90import com.android.internal.os.TransferPipe; 91import com.android.server.LocalServices; 92import com.android.server.am.ActivityManagerService.PendingActivityLaunch; 93import com.android.server.am.ActivityStack.ActivityState; 94import com.android.server.wm.WindowManagerService; 95 96import java.io.FileDescriptor; 97import java.io.IOException; 98import java.io.PrintWriter; 99import java.util.ArrayList; 100import java.util.List; 101 102public final class ActivityStackSupervisor implements DisplayListener { 103 static final boolean DEBUG = ActivityManagerService.DEBUG || false; 104 static final boolean DEBUG_ADD_REMOVE = DEBUG || false; 105 static final boolean DEBUG_APP = DEBUG || false; 106 static final boolean DEBUG_SAVED_STATE = DEBUG || false; 107 static final boolean DEBUG_STATES = DEBUG || false; 108 static final boolean DEBUG_IDLE = DEBUG || false; 109 110 public static final int HOME_STACK_ID = 0; 111 112 /** How long we wait until giving up on the last activity telling us it is idle. */ 113 static final int IDLE_TIMEOUT = 10*1000; 114 115 /** How long we can hold the sleep wake lock before giving up. */ 116 static final int SLEEP_TIMEOUT = 5*1000; 117 118 // How long we can hold the launch wake lock before giving up. 119 static final int LAUNCH_TIMEOUT = 10*1000; 120 121 static final int IDLE_TIMEOUT_MSG = FIRST_SUPERVISOR_STACK_MSG; 122 static final int IDLE_NOW_MSG = FIRST_SUPERVISOR_STACK_MSG + 1; 123 static final int RESUME_TOP_ACTIVITY_MSG = FIRST_SUPERVISOR_STACK_MSG + 2; 124 static final int SLEEP_TIMEOUT_MSG = FIRST_SUPERVISOR_STACK_MSG + 3; 125 static final int LAUNCH_TIMEOUT_MSG = FIRST_SUPERVISOR_STACK_MSG + 4; 126 static final int HANDLE_DISPLAY_ADDED = FIRST_SUPERVISOR_STACK_MSG + 5; 127 static final int HANDLE_DISPLAY_CHANGED = FIRST_SUPERVISOR_STACK_MSG + 6; 128 static final int HANDLE_DISPLAY_REMOVED = FIRST_SUPERVISOR_STACK_MSG + 7; 129 static final int CONTAINER_CALLBACK_VISIBILITY = FIRST_SUPERVISOR_STACK_MSG + 8; 130 131 private final static String VIRTUAL_DISPLAY_BASE_NAME = "ActivityViewVirtualDisplay"; 132 133 // For debugging to make sure the caller when acquiring/releasing our 134 // wake lock is the system process. 135 static final boolean VALIDATE_WAKE_LOCK_CALLER = false; 136 137 final ActivityManagerService mService; 138 139 final ActivityStackSupervisorHandler mHandler; 140 141 /** Short cut */ 142 WindowManagerService mWindowManager; 143 DisplayManager mDisplayManager; 144 145 /** Dismiss the keyguard after the next activity is displayed? */ 146 boolean mDismissKeyguardOnNextActivity = false; 147 148 /** Identifier counter for all ActivityStacks */ 149 private int mLastStackId = HOME_STACK_ID; 150 151 /** Task identifier that activities are currently being started in. Incremented each time a 152 * new task is created. */ 153 private int mCurTaskId = 0; 154 155 /** The current user */ 156 private int mCurrentUser; 157 158 /** The stack containing the launcher app. Assumed to always be attached to 159 * Display.DEFAULT_DISPLAY. */ 160 private ActivityStack mHomeStack; 161 162 /** The stack currently receiving input or launching the next activity. */ 163 private ActivityStack mFocusedStack; 164 165 /** If this is the same as mFocusedStack then the activity on the top of the focused stack has 166 * been resumed. If stacks are changing position this will hold the old stack until the new 167 * stack becomes resumed after which it will be set to mFocusedStack. */ 168 private ActivityStack mLastFocusedStack; 169 170 /** List of activities that are waiting for a new activity to become visible before completing 171 * whatever operation they are supposed to do. */ 172 final ArrayList<ActivityRecord> mWaitingVisibleActivities = new ArrayList<ActivityRecord>(); 173 174 /** List of processes waiting to find out about the next visible activity. */ 175 final ArrayList<IActivityManager.WaitResult> mWaitingActivityVisible = 176 new ArrayList<IActivityManager.WaitResult>(); 177 178 /** List of processes waiting to find out about the next launched activity. */ 179 final ArrayList<IActivityManager.WaitResult> mWaitingActivityLaunched = 180 new ArrayList<IActivityManager.WaitResult>(); 181 182 /** List of activities that are ready to be stopped, but waiting for the next activity to 183 * settle down before doing so. */ 184 final ArrayList<ActivityRecord> mStoppingActivities = new ArrayList<ActivityRecord>(); 185 186 /** List of activities that are ready to be finished, but waiting for the previous activity to 187 * settle down before doing so. It contains ActivityRecord objects. */ 188 final ArrayList<ActivityRecord> mFinishingActivities = new ArrayList<ActivityRecord>(); 189 190 /** List of activities that are in the process of going to sleep. */ 191 final ArrayList<ActivityRecord> mGoingToSleepActivities = new ArrayList<ActivityRecord>(); 192 193 /** Used on user changes */ 194 final ArrayList<UserStartedState> mStartingUsers = new ArrayList<UserStartedState>(); 195 196 /** Used to queue up any background users being started */ 197 final ArrayList<UserStartedState> mStartingBackgroundUsers = new ArrayList<UserStartedState>(); 198 199 /** Set to indicate whether to issue an onUserLeaving callback when a newly launched activity 200 * is being brought in front of us. */ 201 boolean mUserLeaving = false; 202 203 /** Set when we have taken too long waiting to go to sleep. */ 204 boolean mSleepTimeout = false; 205 206 /** 207 * We don't want to allow the device to go to sleep while in the process 208 * of launching an activity. This is primarily to allow alarm intent 209 * receivers to launch an activity and get that to run before the device 210 * goes back to sleep. 211 */ 212 final PowerManager.WakeLock mLaunchingActivity; 213 214 /** 215 * Set when the system is going to sleep, until we have 216 * successfully paused the current activity and released our wake lock. 217 * At that point the system is allowed to actually sleep. 218 */ 219 final PowerManager.WakeLock mGoingToSleep; 220 221 /** Stack id of the front stack when user switched, indexed by userId. */ 222 SparseIntArray mUserStackInFront = new SparseIntArray(2); 223 224 // TODO: Add listener for removal of references. 225 /** Mapping from (ActivityStack/TaskStack).mStackId to their current state */ 226 SparseArray<ActivityContainer> mActivityContainers = new SparseArray<ActivityContainer>(); 227 228 /** Mapping from displayId to display current state */ 229 private final SparseArray<ActivityDisplay> mActivityDisplays = 230 new SparseArray<ActivityDisplay>(); 231 232 InputManagerInternal mInputManagerInternal; 233 234 /** If non-null then the task specified remains in front and no other tasks may be started 235 * until the task exits or #stopLockTaskMode() is called. */ 236 private TaskRecord mLockTaskModeTask; 237 238 public ActivityStackSupervisor(ActivityManagerService service) { 239 mService = service; 240 PowerManager pm = (PowerManager)mService.mContext.getSystemService(Context.POWER_SERVICE); 241 mGoingToSleep = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "ActivityManager-Sleep"); 242 mHandler = new ActivityStackSupervisorHandler(mService.mHandler.getLooper()); 243 if (VALIDATE_WAKE_LOCK_CALLER && Binder.getCallingUid() != Process.myUid()) { 244 throw new IllegalStateException("Calling must be system uid"); 245 } 246 mLaunchingActivity = 247 pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "ActivityManager-Launch"); 248 mLaunchingActivity.setReferenceCounted(false); 249 } 250 251 void setWindowManager(WindowManagerService wm) { 252 synchronized (mService) { 253 mWindowManager = wm; 254 255 mDisplayManager = 256 (DisplayManager)mService.mContext.getSystemService(Context.DISPLAY_SERVICE); 257 mDisplayManager.registerDisplayListener(this, null); 258 259 Display[] displays = mDisplayManager.getDisplays(); 260 for (int displayNdx = displays.length - 1; displayNdx >= 0; --displayNdx) { 261 final int displayId = displays[displayNdx].getDisplayId(); 262 ActivityDisplay activityDisplay = new ActivityDisplay(displayId); 263 mActivityDisplays.put(displayId, activityDisplay); 264 } 265 266 createStackOnDisplay(HOME_STACK_ID, Display.DEFAULT_DISPLAY); 267 mHomeStack = mFocusedStack = mLastFocusedStack = getStack(HOME_STACK_ID); 268 269 mInputManagerInternal = LocalServices.getService(InputManagerInternal.class); 270 } 271 } 272 273 void dismissKeyguard() { 274 if (ActivityManagerService.DEBUG_LOCKSCREEN) mService.logLockScreen(""); 275 if (mDismissKeyguardOnNextActivity) { 276 mDismissKeyguardOnNextActivity = false; 277 mWindowManager.dismissKeyguard(); 278 } 279 } 280 281 ActivityStack getFocusedStack() { 282 return mFocusedStack; 283 } 284 285 ActivityStack getLastStack() { 286 return mLastFocusedStack; 287 } 288 289 // TODO: Split into two methods isFrontStack for any visible stack and isFrontmostStack for the 290 // top of all visible stacks. 291 boolean isFrontStack(ActivityStack stack) { 292 final ActivityRecord parent = stack.mActivityContainer.mParentActivity; 293 if (parent != null) { 294 stack = parent.task.stack; 295 } 296 ArrayList<ActivityStack> stacks = stack.mStacks; 297 if (stacks != null && !stacks.isEmpty()) { 298 return stack == stacks.get(stacks.size() - 1); 299 } 300 return false; 301 } 302 303 void moveHomeStack(boolean toFront) { 304 ArrayList<ActivityStack> stacks = mHomeStack.mStacks; 305 int topNdx = stacks.size() - 1; 306 if (topNdx <= 0) { 307 return; 308 } 309 ActivityStack topStack = stacks.get(topNdx); 310 final boolean homeInFront = topStack == mHomeStack; 311 if (homeInFront != toFront) { 312 mLastFocusedStack = topStack; 313 stacks.remove(mHomeStack); 314 stacks.add(toFront ? topNdx : 0, mHomeStack); 315 mFocusedStack = stacks.get(topNdx); 316 if (DEBUG_STACK) Slog.d(TAG, "moveHomeTask: topStack old=" + topStack + " new=" 317 + mFocusedStack); 318 } 319 } 320 321 void moveHomeToTop() { 322 moveHomeStack(true); 323 mHomeStack.moveHomeTaskToTop(); 324 } 325 326 boolean resumeHomeActivity(ActivityRecord prev) { 327 moveHomeToTop(); 328 if (prev != null) { 329 prev.task.mOnTopOfHome = false; 330 } 331 ActivityRecord r = mHomeStack.topRunningActivityLocked(null); 332 if (r != null && r.isHomeActivity()) { 333 mService.setFocusedActivityLocked(r); 334 return resumeTopActivitiesLocked(mHomeStack, prev, null); 335 } 336 return mService.startHomeActivityLocked(mCurrentUser); 337 } 338 339 void setDismissKeyguard(boolean dismiss) { 340 if (ActivityManagerService.DEBUG_LOCKSCREEN) mService.logLockScreen(" dismiss=" + dismiss); 341 mDismissKeyguardOnNextActivity = dismiss; 342 } 343 344 TaskRecord anyTaskForIdLocked(int id) { 345 int numDisplays = mActivityDisplays.size(); 346 for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) { 347 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 348 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 349 ActivityStack stack = stacks.get(stackNdx); 350 TaskRecord task = stack.taskForIdLocked(id); 351 if (task != null) { 352 return task; 353 } 354 } 355 } 356 return null; 357 } 358 359 ActivityRecord isInAnyStackLocked(IBinder token) { 360 int numDisplays = mActivityDisplays.size(); 361 for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) { 362 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 363 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 364 final ActivityRecord r = stacks.get(stackNdx).isInStackLocked(token); 365 if (r != null) { 366 return r; 367 } 368 } 369 } 370 return null; 371 } 372 373 int getNextTaskId() { 374 do { 375 mCurTaskId++; 376 if (mCurTaskId <= 0) { 377 mCurTaskId = 1; 378 } 379 } while (anyTaskForIdLocked(mCurTaskId) != null); 380 return mCurTaskId; 381 } 382 383 ActivityRecord resumedAppLocked() { 384 ActivityStack stack = getFocusedStack(); 385 if (stack == null) { 386 return null; 387 } 388 ActivityRecord resumedActivity = stack.mResumedActivity; 389 if (resumedActivity == null || resumedActivity.app == null) { 390 resumedActivity = stack.mPausingActivity; 391 if (resumedActivity == null || resumedActivity.app == null) { 392 resumedActivity = stack.topRunningActivityLocked(null); 393 } 394 } 395 return resumedActivity; 396 } 397 398 boolean attachApplicationLocked(ProcessRecord app) throws Exception { 399 final String processName = app.processName; 400 boolean didSomething = false; 401 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 402 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 403 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 404 final ActivityStack stack = stacks.get(stackNdx); 405 if (!isFrontStack(stack)) { 406 continue; 407 } 408 ActivityRecord hr = stack.topRunningActivityLocked(null); 409 if (hr != null) { 410 if (hr.app == null && app.uid == hr.info.applicationInfo.uid 411 && processName.equals(hr.processName)) { 412 try { 413 if (realStartActivityLocked(hr, app, true, true)) { 414 didSomething = true; 415 } 416 } catch (Exception e) { 417 Slog.w(TAG, "Exception in new application when starting activity " 418 + hr.intent.getComponent().flattenToShortString(), e); 419 throw e; 420 } 421 } 422 } 423 } 424 } 425 if (!didSomething) { 426 ensureActivitiesVisibleLocked(null, 0); 427 } 428 return didSomething; 429 } 430 431 boolean allResumedActivitiesIdle() { 432 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 433 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 434 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 435 final ActivityStack stack = stacks.get(stackNdx); 436 if (!isFrontStack(stack) || stack.numActivities() == 0) { 437 continue; 438 } 439 final ActivityRecord resumedActivity = stack.mResumedActivity; 440 if (resumedActivity == null || !resumedActivity.idle) { 441 if (DEBUG_STATES) Slog.d(TAG, "allResumedActivitiesIdle: stack=" 442 + stack.mStackId + " " + resumedActivity + " not idle"); 443 return false; 444 } 445 } 446 } 447 return true; 448 } 449 450 boolean allResumedActivitiesComplete() { 451 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 452 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 453 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 454 final ActivityStack stack = stacks.get(stackNdx); 455 if (isFrontStack(stack)) { 456 final ActivityRecord r = stack.mResumedActivity; 457 if (r != null && r.state != ActivityState.RESUMED) { 458 return false; 459 } 460 } 461 } 462 } 463 // TODO: Not sure if this should check if all Paused are complete too. 464 if (DEBUG_STACK) Slog.d(TAG, 465 "allResumedActivitiesComplete: mLastFocusedStack changing from=" + 466 mLastFocusedStack + " to=" + mFocusedStack); 467 mLastFocusedStack = mFocusedStack; 468 return true; 469 } 470 471 boolean allResumedActivitiesVisible() { 472 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 473 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 474 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 475 final ActivityStack stack = stacks.get(stackNdx); 476 final ActivityRecord r = stack.mResumedActivity; 477 if (r != null && (!r.nowVisible || r.waitingVisible)) { 478 return false; 479 } 480 } 481 } 482 return true; 483 } 484 485 /** 486 * Pause all activities in either all of the stacks or just the back stacks. 487 * @param userLeaving Passed to pauseActivity() to indicate whether to call onUserLeaving(). 488 * @return true if any activity was paused as a result of this call. 489 */ 490 boolean pauseBackStacks(boolean userLeaving) { 491 boolean someActivityPaused = false; 492 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 493 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 494 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 495 final ActivityStack stack = stacks.get(stackNdx); 496 if (!isFrontStack(stack) && stack.mResumedActivity != null) { 497 if (DEBUG_STATES) Slog.d(TAG, "pauseBackStacks: stack=" + stack + 498 " mResumedActivity=" + stack.mResumedActivity); 499 stack.startPausingLocked(userLeaving, false); 500 someActivityPaused = true; 501 } 502 } 503 } 504 return someActivityPaused; 505 } 506 507 boolean allPausedActivitiesComplete() { 508 boolean pausing = true; 509 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 510 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 511 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 512 final ActivityStack stack = stacks.get(stackNdx); 513 final ActivityRecord r = stack.mPausingActivity; 514 if (r != null && r.state != ActivityState.PAUSED 515 && r.state != ActivityState.STOPPED 516 && r.state != ActivityState.STOPPING) { 517 if (DEBUG_STATES) { 518 Slog.d(TAG, "allPausedActivitiesComplete: r=" + r + " state=" + r.state); 519 pausing = false; 520 } else { 521 return false; 522 } 523 } 524 } 525 } 526 return pausing; 527 } 528 529 void pauseChildStacks(ActivityRecord parent, boolean userLeaving, boolean uiSleeping) { 530 // TODO: Put all stacks in supervisor and iterate through them instead. 531 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 532 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 533 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 534 final ActivityStack stack = stacks.get(stackNdx); 535 if (stack.mResumedActivity != null && 536 stack.mActivityContainer.mParentActivity == parent) { 537 stack.startPausingLocked(userLeaving, uiSleeping); 538 } 539 } 540 } 541 } 542 543 void reportActivityVisibleLocked(ActivityRecord r) { 544 for (int i = mWaitingActivityVisible.size()-1; i >= 0; i--) { 545 WaitResult w = mWaitingActivityVisible.get(i); 546 w.timeout = false; 547 if (r != null) { 548 w.who = new ComponentName(r.info.packageName, r.info.name); 549 } 550 w.totalTime = SystemClock.uptimeMillis() - w.thisTime; 551 w.thisTime = w.totalTime; 552 } 553 mService.notifyAll(); 554 dismissKeyguard(); 555 } 556 557 void reportActivityLaunchedLocked(boolean timeout, ActivityRecord r, 558 long thisTime, long totalTime) { 559 for (int i = mWaitingActivityLaunched.size() - 1; i >= 0; i--) { 560 WaitResult w = mWaitingActivityLaunched.remove(i); 561 w.timeout = timeout; 562 if (r != null) { 563 w.who = new ComponentName(r.info.packageName, r.info.name); 564 } 565 w.thisTime = thisTime; 566 w.totalTime = totalTime; 567 } 568 mService.notifyAll(); 569 } 570 571 ActivityRecord topRunningActivityLocked() { 572 final ActivityStack focusedStack = getFocusedStack(); 573 ActivityRecord r = focusedStack.topRunningActivityLocked(null); 574 if (r != null) { 575 return r; 576 } 577 578 // Return to the home stack. 579 final ArrayList<ActivityStack> stacks = mHomeStack.mStacks; 580 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 581 final ActivityStack stack = stacks.get(stackNdx); 582 if (stack != focusedStack && isFrontStack(stack)) { 583 r = stack.topRunningActivityLocked(null); 584 if (r != null) { 585 return r; 586 } 587 } 588 } 589 return null; 590 } 591 592 void getTasksLocked(int maxNum, List<RunningTaskInfo> list, int callingUid, boolean allowed) { 593 // Gather all of the running tasks for each stack into runningTaskLists. 594 ArrayList<ArrayList<RunningTaskInfo>> runningTaskLists = 595 new ArrayList<ArrayList<RunningTaskInfo>>(); 596 final int numDisplays = mActivityDisplays.size(); 597 for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) { 598 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 599 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 600 final ActivityStack stack = stacks.get(stackNdx); 601 ArrayList<RunningTaskInfo> stackTaskList = new ArrayList<RunningTaskInfo>(); 602 runningTaskLists.add(stackTaskList); 603 stack.getTasksLocked(stackTaskList, callingUid, allowed); 604 } 605 } 606 607 // The lists are already sorted from most recent to oldest. Just pull the most recent off 608 // each list and add it to list. Stop when all lists are empty or maxNum reached. 609 while (maxNum > 0) { 610 long mostRecentActiveTime = Long.MIN_VALUE; 611 ArrayList<RunningTaskInfo> selectedStackList = null; 612 final int numTaskLists = runningTaskLists.size(); 613 for (int stackNdx = 0; stackNdx < numTaskLists; ++stackNdx) { 614 ArrayList<RunningTaskInfo> stackTaskList = runningTaskLists.get(stackNdx); 615 if (!stackTaskList.isEmpty()) { 616 final long lastActiveTime = stackTaskList.get(0).lastActiveTime; 617 if (lastActiveTime > mostRecentActiveTime) { 618 mostRecentActiveTime = lastActiveTime; 619 selectedStackList = stackTaskList; 620 } 621 } 622 } 623 if (selectedStackList != null) { 624 list.add(selectedStackList.remove(0)); 625 --maxNum; 626 } else { 627 break; 628 } 629 } 630 } 631 632 ActivityInfo resolveActivity(Intent intent, String resolvedType, int startFlags, 633 String profileFile, ParcelFileDescriptor profileFd, int userId) { 634 // Collect information about the target of the Intent. 635 ActivityInfo aInfo; 636 try { 637 ResolveInfo rInfo = 638 AppGlobals.getPackageManager().resolveIntent( 639 intent, resolvedType, 640 PackageManager.MATCH_DEFAULT_ONLY 641 | ActivityManagerService.STOCK_PM_FLAGS, userId); 642 aInfo = rInfo != null ? rInfo.activityInfo : null; 643 } catch (RemoteException e) { 644 aInfo = null; 645 } 646 647 if (aInfo != null) { 648 // Store the found target back into the intent, because now that 649 // we have it we never want to do this again. For example, if the 650 // user navigates back to this point in the history, we should 651 // always restart the exact same activity. 652 intent.setComponent(new ComponentName( 653 aInfo.applicationInfo.packageName, aInfo.name)); 654 655 // Don't debug things in the system process 656 if ((startFlags&ActivityManager.START_FLAG_DEBUG) != 0) { 657 if (!aInfo.processName.equals("system")) { 658 mService.setDebugApp(aInfo.processName, true, false); 659 } 660 } 661 662 if ((startFlags&ActivityManager.START_FLAG_OPENGL_TRACES) != 0) { 663 if (!aInfo.processName.equals("system")) { 664 mService.setOpenGlTraceApp(aInfo.applicationInfo, aInfo.processName); 665 } 666 } 667 668 if (profileFile != null) { 669 if (!aInfo.processName.equals("system")) { 670 mService.setProfileApp(aInfo.applicationInfo, aInfo.processName, 671 profileFile, profileFd, 672 (startFlags&ActivityManager.START_FLAG_AUTO_STOP_PROFILER) != 0); 673 } 674 } 675 } 676 return aInfo; 677 } 678 679 void startHomeActivity(Intent intent, ActivityInfo aInfo) { 680 moveHomeToTop(); 681 startActivityLocked(null, intent, null, aInfo, null, null, null, null, 0, 0, 0, null, 0, 682 null, false, null, null); 683 } 684 685 final int startActivityMayWait(IApplicationThread caller, int callingUid, 686 String callingPackage, Intent intent, String resolvedType, 687 IVoiceInteractionSession voiceSession, IVoiceInteractor voiceInteractor, 688 IBinder resultTo, String resultWho, int requestCode, int startFlags, String profileFile, 689 ParcelFileDescriptor profileFd, WaitResult outResult, Configuration config, 690 Bundle options, int userId, IActivityContainer iContainer) { 691 // Refuse possible leaked file descriptors 692 if (intent != null && intent.hasFileDescriptors()) { 693 throw new IllegalArgumentException("File descriptors passed in Intent"); 694 } 695 boolean componentSpecified = intent.getComponent() != null; 696 697 // Don't modify the client's object! 698 intent = new Intent(intent); 699 700 // Collect information about the target of the Intent. 701 ActivityInfo aInfo = resolveActivity(intent, resolvedType, startFlags, 702 profileFile, profileFd, userId); 703 704 ActivityContainer container = (ActivityContainer)iContainer; 705 synchronized (mService) { 706 int callingPid; 707 if (callingUid >= 0) { 708 callingPid = -1; 709 } else if (caller == null) { 710 callingPid = Binder.getCallingPid(); 711 callingUid = Binder.getCallingUid(); 712 } else { 713 callingPid = callingUid = -1; 714 } 715 716 final ActivityStack stack; 717 if (container == null || container.mStack.isOnHomeDisplay()) { 718 stack = getFocusedStack(); 719 } else { 720 stack = container.mStack; 721 } 722 stack.mConfigWillChange = config != null 723 && mService.mConfiguration.diff(config) != 0; 724 if (DEBUG_CONFIGURATION) Slog.v(TAG, 725 "Starting activity when config will change = " + stack.mConfigWillChange); 726 727 final long origId = Binder.clearCallingIdentity(); 728 729 if (aInfo != null && 730 (aInfo.applicationInfo.flags&ApplicationInfo.FLAG_CANT_SAVE_STATE) != 0) { 731 // This may be a heavy-weight process! Check to see if we already 732 // have another, different heavy-weight process running. 733 if (aInfo.processName.equals(aInfo.applicationInfo.packageName)) { 734 if (mService.mHeavyWeightProcess != null && 735 (mService.mHeavyWeightProcess.info.uid != aInfo.applicationInfo.uid || 736 !mService.mHeavyWeightProcess.processName.equals(aInfo.processName))) { 737 int realCallingUid = callingUid; 738 if (caller != null) { 739 ProcessRecord callerApp = mService.getRecordForAppLocked(caller); 740 if (callerApp != null) { 741 realCallingUid = callerApp.info.uid; 742 } else { 743 Slog.w(TAG, "Unable to find app for caller " + caller 744 + " (pid=" + callingPid + ") when starting: " 745 + intent.toString()); 746 ActivityOptions.abort(options); 747 return ActivityManager.START_PERMISSION_DENIED; 748 } 749 } 750 751 IIntentSender target = mService.getIntentSenderLocked( 752 ActivityManager.INTENT_SENDER_ACTIVITY, "android", 753 realCallingUid, userId, null, null, 0, new Intent[] { intent }, 754 new String[] { resolvedType }, PendingIntent.FLAG_CANCEL_CURRENT 755 | PendingIntent.FLAG_ONE_SHOT, null); 756 757 Intent newIntent = new Intent(); 758 if (requestCode >= 0) { 759 // Caller is requesting a result. 760 newIntent.putExtra(HeavyWeightSwitcherActivity.KEY_HAS_RESULT, true); 761 } 762 newIntent.putExtra(HeavyWeightSwitcherActivity.KEY_INTENT, 763 new IntentSender(target)); 764 if (mService.mHeavyWeightProcess.activities.size() > 0) { 765 ActivityRecord hist = mService.mHeavyWeightProcess.activities.get(0); 766 newIntent.putExtra(HeavyWeightSwitcherActivity.KEY_CUR_APP, 767 hist.packageName); 768 newIntent.putExtra(HeavyWeightSwitcherActivity.KEY_CUR_TASK, 769 hist.task.taskId); 770 } 771 newIntent.putExtra(HeavyWeightSwitcherActivity.KEY_NEW_APP, 772 aInfo.packageName); 773 newIntent.setFlags(intent.getFlags()); 774 newIntent.setClassName("android", 775 HeavyWeightSwitcherActivity.class.getName()); 776 intent = newIntent; 777 resolvedType = null; 778 caller = null; 779 callingUid = Binder.getCallingUid(); 780 callingPid = Binder.getCallingPid(); 781 componentSpecified = true; 782 try { 783 ResolveInfo rInfo = 784 AppGlobals.getPackageManager().resolveIntent( 785 intent, null, 786 PackageManager.MATCH_DEFAULT_ONLY 787 | ActivityManagerService.STOCK_PM_FLAGS, userId); 788 aInfo = rInfo != null ? rInfo.activityInfo : null; 789 aInfo = mService.getActivityInfoForUser(aInfo, userId); 790 } catch (RemoteException e) { 791 aInfo = null; 792 } 793 } 794 } 795 } 796 797 int res = startActivityLocked(caller, intent, resolvedType, aInfo, 798 voiceSession, voiceInteractor, resultTo, resultWho, 799 requestCode, callingPid, callingUid, callingPackage, startFlags, options, 800 componentSpecified, null, container); 801 802 if (stack.mConfigWillChange) { 803 // If the caller also wants to switch to a new configuration, 804 // do so now. This allows a clean switch, as we are waiting 805 // for the current activity to pause (so we will not destroy 806 // it), and have not yet started the next activity. 807 mService.enforceCallingPermission(android.Manifest.permission.CHANGE_CONFIGURATION, 808 "updateConfiguration()"); 809 stack.mConfigWillChange = false; 810 if (DEBUG_CONFIGURATION) Slog.v(TAG, 811 "Updating to new configuration after starting activity."); 812 mService.updateConfigurationLocked(config, null, false, false); 813 } 814 815 Binder.restoreCallingIdentity(origId); 816 817 if (outResult != null) { 818 outResult.result = res; 819 if (res == ActivityManager.START_SUCCESS) { 820 mWaitingActivityLaunched.add(outResult); 821 do { 822 try { 823 mService.wait(); 824 } catch (InterruptedException e) { 825 } 826 } while (!outResult.timeout && outResult.who == null); 827 } else if (res == ActivityManager.START_TASK_TO_FRONT) { 828 ActivityRecord r = stack.topRunningActivityLocked(null); 829 if (r.nowVisible) { 830 outResult.timeout = false; 831 outResult.who = new ComponentName(r.info.packageName, r.info.name); 832 outResult.totalTime = 0; 833 outResult.thisTime = 0; 834 } else { 835 outResult.thisTime = SystemClock.uptimeMillis(); 836 mWaitingActivityVisible.add(outResult); 837 do { 838 try { 839 mService.wait(); 840 } catch (InterruptedException e) { 841 } 842 } while (!outResult.timeout && outResult.who == null); 843 } 844 } 845 } 846 847 return res; 848 } 849 } 850 851 final int startActivities(IApplicationThread caller, int callingUid, String callingPackage, 852 Intent[] intents, String[] resolvedTypes, IBinder resultTo, 853 Bundle options, int userId) { 854 if (intents == null) { 855 throw new NullPointerException("intents is null"); 856 } 857 if (resolvedTypes == null) { 858 throw new NullPointerException("resolvedTypes is null"); 859 } 860 if (intents.length != resolvedTypes.length) { 861 throw new IllegalArgumentException("intents are length different than resolvedTypes"); 862 } 863 864 865 int callingPid; 866 if (callingUid >= 0) { 867 callingPid = -1; 868 } else if (caller == null) { 869 callingPid = Binder.getCallingPid(); 870 callingUid = Binder.getCallingUid(); 871 } else { 872 callingPid = callingUid = -1; 873 } 874 final long origId = Binder.clearCallingIdentity(); 875 try { 876 synchronized (mService) { 877 ActivityRecord[] outActivity = new ActivityRecord[1]; 878 for (int i=0; i<intents.length; i++) { 879 Intent intent = intents[i]; 880 if (intent == null) { 881 continue; 882 } 883 884 // Refuse possible leaked file descriptors 885 if (intent != null && intent.hasFileDescriptors()) { 886 throw new IllegalArgumentException("File descriptors passed in Intent"); 887 } 888 889 boolean componentSpecified = intent.getComponent() != null; 890 891 // Don't modify the client's object! 892 intent = new Intent(intent); 893 894 // Collect information about the target of the Intent. 895 ActivityInfo aInfo = resolveActivity(intent, resolvedTypes[i], 896 0, null, null, userId); 897 // TODO: New, check if this is correct 898 aInfo = mService.getActivityInfoForUser(aInfo, userId); 899 900 if (aInfo != null && 901 (aInfo.applicationInfo.flags & ApplicationInfo.FLAG_CANT_SAVE_STATE) 902 != 0) { 903 throw new IllegalArgumentException( 904 "FLAG_CANT_SAVE_STATE not supported here"); 905 } 906 907 Bundle theseOptions; 908 if (options != null && i == intents.length-1) { 909 theseOptions = options; 910 } else { 911 theseOptions = null; 912 } 913 int res = startActivityLocked(caller, intent, resolvedTypes[i], 914 aInfo, null, null, resultTo, null, -1, callingPid, callingUid, callingPackage, 915 0, theseOptions, componentSpecified, outActivity, null); 916 if (res < 0) { 917 return res; 918 } 919 920 resultTo = outActivity[0] != null ? outActivity[0].appToken : null; 921 } 922 } 923 } finally { 924 Binder.restoreCallingIdentity(origId); 925 } 926 927 return ActivityManager.START_SUCCESS; 928 } 929 930 final boolean realStartActivityLocked(ActivityRecord r, 931 ProcessRecord app, boolean andResume, boolean checkConfig) 932 throws RemoteException { 933 934 r.startFreezingScreenLocked(app, 0); 935 if (false) Slog.d(TAG, "realStartActivity: setting app visibility true"); 936 mWindowManager.setAppVisibility(r.appToken, true); 937 938 // schedule launch ticks to collect information about slow apps. 939 r.startLaunchTickingLocked(); 940 941 // Have the window manager re-evaluate the orientation of 942 // the screen based on the new activity order. Note that 943 // as a result of this, it can call back into the activity 944 // manager with a new orientation. We don't care about that, 945 // because the activity is not currently running so we are 946 // just restarting it anyway. 947 if (checkConfig) { 948 Configuration config = mWindowManager.updateOrientationFromAppTokens( 949 mService.mConfiguration, 950 r.mayFreezeScreenLocked(app) ? r.appToken : null); 951 mService.updateConfigurationLocked(config, r, false, false); 952 } 953 954 r.app = app; 955 app.waitingToKill = null; 956 r.launchCount++; 957 r.lastLaunchTime = SystemClock.uptimeMillis(); 958 959 if (localLOGV) Slog.v(TAG, "Launching: " + r); 960 961 int idx = app.activities.indexOf(r); 962 if (idx < 0) { 963 app.activities.add(r); 964 } 965 mService.updateLruProcessLocked(app, true, null); 966 mService.updateOomAdjLocked(); 967 968 final ActivityStack stack = r.task.stack; 969 try { 970 if (app.thread == null) { 971 throw new RemoteException(); 972 } 973 List<ResultInfo> results = null; 974 List<Intent> newIntents = null; 975 if (andResume) { 976 results = r.results; 977 newIntents = r.newIntents; 978 } 979 if (DEBUG_SWITCH) Slog.v(TAG, "Launching: " + r 980 + " icicle=" + r.icicle 981 + " with results=" + results + " newIntents=" + newIntents 982 + " andResume=" + andResume); 983 if (andResume) { 984 EventLog.writeEvent(EventLogTags.AM_RESTART_ACTIVITY, 985 r.userId, System.identityHashCode(r), 986 r.task.taskId, r.shortComponentName); 987 } 988 if (r.isHomeActivity() && r.isNotResolverActivity()) { 989 // Home process is the root process of the task. 990 mService.mHomeProcess = r.task.mActivities.get(0).app; 991 } 992 mService.ensurePackageDexOpt(r.intent.getComponent().getPackageName()); 993 r.sleeping = false; 994 r.forceNewConfig = false; 995 mService.showAskCompatModeDialogLocked(r); 996 r.compat = mService.compatibilityInfoForPackageLocked(r.info.applicationInfo); 997 String profileFile = null; 998 ParcelFileDescriptor profileFd = null; 999 boolean profileAutoStop = false; 1000 if (mService.mProfileApp != null && mService.mProfileApp.equals(app.processName)) { 1001 if (mService.mProfileProc == null || mService.mProfileProc == app) { 1002 mService.mProfileProc = app; 1003 profileFile = mService.mProfileFile; 1004 profileFd = mService.mProfileFd; 1005 profileAutoStop = mService.mAutoStopProfiler; 1006 } 1007 } 1008 app.hasShownUi = true; 1009 app.pendingUiClean = true; 1010 if (profileFd != null) { 1011 try { 1012 profileFd = profileFd.dup(); 1013 } catch (IOException e) { 1014 if (profileFd != null) { 1015 try { 1016 profileFd.close(); 1017 } catch (IOException o) { 1018 } 1019 profileFd = null; 1020 } 1021 } 1022 } 1023 1024 app.forceProcessStateUpTo(ActivityManager.PROCESS_STATE_TOP); 1025 Bundle options = (r.pendingOptions == null) ? null : r.pendingOptions.toBundle(); 1026 r.clearOptionsLocked(); 1027 app.thread.scheduleLaunchActivity(new Intent(r.intent), r.appToken, 1028 System.identityHashCode(r), r.info, 1029 new Configuration(mService.mConfiguration), r.compat, 1030 r.task.voiceInteractor, app.repProcState, r.icicle, results, newIntents, 1031 !andResume, mService.isNextTransitionForward(), profileFile, profileFd, 1032 profileAutoStop, options); 1033 1034 if ((app.info.flags&ApplicationInfo.FLAG_CANT_SAVE_STATE) != 0) { 1035 // This may be a heavy-weight process! Note that the package 1036 // manager will ensure that only activity can run in the main 1037 // process of the .apk, which is the only thing that will be 1038 // considered heavy-weight. 1039 if (app.processName.equals(app.info.packageName)) { 1040 if (mService.mHeavyWeightProcess != null 1041 && mService.mHeavyWeightProcess != app) { 1042 Slog.w(TAG, "Starting new heavy weight process " + app 1043 + " when already running " 1044 + mService.mHeavyWeightProcess); 1045 } 1046 mService.mHeavyWeightProcess = app; 1047 Message msg = mService.mHandler.obtainMessage( 1048 ActivityManagerService.POST_HEAVY_NOTIFICATION_MSG); 1049 msg.obj = r; 1050 mService.mHandler.sendMessage(msg); 1051 } 1052 } 1053 1054 } catch (RemoteException e) { 1055 if (r.launchFailed) { 1056 // This is the second time we failed -- finish activity 1057 // and give up. 1058 Slog.e(TAG, "Second failure launching " 1059 + r.intent.getComponent().flattenToShortString() 1060 + ", giving up", e); 1061 mService.appDiedLocked(app, app.pid, app.thread); 1062 stack.requestFinishActivityLocked(r.appToken, Activity.RESULT_CANCELED, null, 1063 "2nd-crash", false); 1064 return false; 1065 } 1066 1067 // This is the first time we failed -- restart process and 1068 // retry. 1069 app.activities.remove(r); 1070 throw e; 1071 } 1072 1073 r.launchFailed = false; 1074 if (stack.updateLRUListLocked(r)) { 1075 Slog.w(TAG, "Activity " + r 1076 + " being launched, but already in LRU list"); 1077 } 1078 1079 if (andResume) { 1080 // As part of the process of launching, ActivityThread also performs 1081 // a resume. 1082 stack.minimalResumeActivityLocked(r); 1083 } else { 1084 // This activity is not starting in the resumed state... which 1085 // should look like we asked it to pause+stop (but remain visible), 1086 // and it has done so and reported back the current icicle and 1087 // other state. 1088 if (DEBUG_STATES) Slog.v(TAG, "Moving to STOPPED: " + r 1089 + " (starting in stopped state)"); 1090 r.state = ActivityState.STOPPED; 1091 r.stopped = true; 1092 } 1093 1094 // Launch the new version setup screen if needed. We do this -after- 1095 // launching the initial activity (that is, home), so that it can have 1096 // a chance to initialize itself while in the background, making the 1097 // switch back to it faster and look better. 1098 if (isFrontStack(stack)) { 1099 mService.startSetupActivityLocked(); 1100 } 1101 1102 return true; 1103 } 1104 1105 void startSpecificActivityLocked(ActivityRecord r, 1106 boolean andResume, boolean checkConfig) { 1107 // Is this activity's application already running? 1108 ProcessRecord app = mService.getProcessRecordLocked(r.processName, 1109 r.info.applicationInfo.uid, true); 1110 1111 r.task.stack.setLaunchTime(r); 1112 1113 if (app != null && app.thread != null) { 1114 try { 1115 if ((r.info.flags&ActivityInfo.FLAG_MULTIPROCESS) == 0 1116 || !"android".equals(r.info.packageName)) { 1117 // Don't add this if it is a platform component that is marked 1118 // to run in multiple processes, because this is actually 1119 // part of the framework so doesn't make sense to track as a 1120 // separate apk in the process. 1121 app.addPackage(r.info.packageName, mService.mProcessStats); 1122 } 1123 realStartActivityLocked(r, app, andResume, checkConfig); 1124 return; 1125 } catch (RemoteException e) { 1126 Slog.w(TAG, "Exception when starting activity " 1127 + r.intent.getComponent().flattenToShortString(), e); 1128 } 1129 1130 // If a dead object exception was thrown -- fall through to 1131 // restart the application. 1132 } 1133 1134 mService.startProcessLocked(r.processName, r.info.applicationInfo, true, 0, 1135 "activity", r.intent.getComponent(), false, false, true); 1136 } 1137 1138 final int startActivityLocked(IApplicationThread caller, 1139 Intent intent, String resolvedType, ActivityInfo aInfo, 1140 IVoiceInteractionSession voiceSession, IVoiceInteractor voiceInteractor, 1141 IBinder resultTo, String resultWho, int requestCode, 1142 int callingPid, int callingUid, String callingPackage, int startFlags, Bundle options, 1143 boolean componentSpecified, ActivityRecord[] outActivity, ActivityContainer container) { 1144 int err = ActivityManager.START_SUCCESS; 1145 1146 ProcessRecord callerApp = null; 1147 if (caller != null) { 1148 callerApp = mService.getRecordForAppLocked(caller); 1149 if (callerApp != null) { 1150 callingPid = callerApp.pid; 1151 callingUid = callerApp.info.uid; 1152 } else { 1153 Slog.w(TAG, "Unable to find app for caller " + caller 1154 + " (pid=" + callingPid + ") when starting: " 1155 + intent.toString()); 1156 err = ActivityManager.START_PERMISSION_DENIED; 1157 } 1158 } 1159 1160 if (err == ActivityManager.START_SUCCESS) { 1161 final int userId = aInfo != null ? UserHandle.getUserId(aInfo.applicationInfo.uid) : 0; 1162 Slog.i(TAG, "START u" + userId + " {" + intent.toShortString(true, true, true, false) 1163 + "} from pid " + (callerApp != null ? callerApp.pid : callingPid) 1164 + " on display " + (container == null ? (mFocusedStack == null ? 1165 Display.DEFAULT_DISPLAY : mFocusedStack.mDisplayId) : 1166 (container.mActivityDisplay == null ? Display.DEFAULT_DISPLAY : 1167 container.mActivityDisplay.mDisplayId))); 1168 } 1169 1170 ActivityRecord sourceRecord = null; 1171 ActivityRecord resultRecord = null; 1172 if (resultTo != null) { 1173 sourceRecord = isInAnyStackLocked(resultTo); 1174 if (DEBUG_RESULTS) Slog.v( 1175 TAG, "Will send result to " + resultTo + " " + sourceRecord); 1176 if (sourceRecord != null) { 1177 if (requestCode >= 0 && !sourceRecord.finishing) { 1178 resultRecord = sourceRecord; 1179 } 1180 } 1181 } 1182 ActivityStack resultStack = resultRecord == null ? null : resultRecord.task.stack; 1183 1184 final int launchFlags = intent.getFlags(); 1185 1186 if ((launchFlags&Intent.FLAG_ACTIVITY_FORWARD_RESULT) != 0 1187 && sourceRecord != null) { 1188 // Transfer the result target from the source activity to the new 1189 // one being started, including any failures. 1190 if (requestCode >= 0) { 1191 ActivityOptions.abort(options); 1192 return ActivityManager.START_FORWARD_AND_REQUEST_CONFLICT; 1193 } 1194 resultRecord = sourceRecord.resultTo; 1195 resultWho = sourceRecord.resultWho; 1196 requestCode = sourceRecord.requestCode; 1197 sourceRecord.resultTo = null; 1198 if (resultRecord != null) { 1199 resultRecord.removeResultsLocked( 1200 sourceRecord, resultWho, requestCode); 1201 } 1202 if (sourceRecord.launchedFromUid == callingUid) { 1203 // The new activity is being launched from the same uid as the previous 1204 // activity in the flow, and asking to forward its result back to the 1205 // previous. In this case the activity is serving as a trampoline between 1206 // the two, so we also want to update its launchedFromPackage to be the 1207 // same as the previous activity. Note that this is safe, since we know 1208 // these two packages come from the same uid; the caller could just as 1209 // well have supplied that same package name itself. This specifially 1210 // deals with the case of an intent picker/chooser being launched in the app 1211 // flow to redirect to an activity picked by the user, where we want the final 1212 // activity to consider it to have been launched by the previous app activity. 1213 callingPackage = sourceRecord.launchedFromPackage; 1214 } 1215 } 1216 1217 if (err == ActivityManager.START_SUCCESS && intent.getComponent() == null) { 1218 // We couldn't find a class that can handle the given Intent. 1219 // That's the end of that! 1220 err = ActivityManager.START_INTENT_NOT_RESOLVED; 1221 } 1222 1223 if (err == ActivityManager.START_SUCCESS && aInfo == null) { 1224 // We couldn't find the specific class specified in the Intent. 1225 // Also the end of the line. 1226 err = ActivityManager.START_CLASS_NOT_FOUND; 1227 } 1228 1229 if (err == ActivityManager.START_SUCCESS && sourceRecord != null 1230 && sourceRecord.task.voiceSession != null) { 1231 // If this activity is being launched as part of a voice session, we need 1232 // to ensure that it is safe to do so. If the upcoming activity will also 1233 // be part of the voice session, we can only launch it if it has explicitly 1234 // said it supports the VOICE category, or it is a part of the calling app. 1235 if ((launchFlags&Intent.FLAG_ACTIVITY_NEW_TASK) == 0 1236 && sourceRecord.info.applicationInfo.uid != aInfo.applicationInfo.uid) { 1237 try { 1238 if (!AppGlobals.getPackageManager().activitySupportsIntent(intent.getComponent(), 1239 intent, resolvedType)) { 1240 err = ActivityManager.START_NOT_VOICE_COMPATIBLE; 1241 } 1242 } catch (RemoteException e) { 1243 err = ActivityManager.START_NOT_VOICE_COMPATIBLE; 1244 } 1245 } 1246 } 1247 1248 if (err == ActivityManager.START_SUCCESS && voiceSession != null) { 1249 // If the caller is starting a new voice session, just make sure the target 1250 // is actually allowing it to run this way. 1251 try { 1252 if (!AppGlobals.getPackageManager().activitySupportsIntent(intent.getComponent(), 1253 intent, resolvedType)) { 1254 err = ActivityManager.START_NOT_VOICE_COMPATIBLE; 1255 } 1256 } catch (RemoteException e) { 1257 err = ActivityManager.START_NOT_VOICE_COMPATIBLE; 1258 } 1259 } 1260 1261 if (err != ActivityManager.START_SUCCESS) { 1262 if (resultRecord != null) { 1263 resultStack.sendActivityResultLocked(-1, 1264 resultRecord, resultWho, requestCode, 1265 Activity.RESULT_CANCELED, null); 1266 } 1267 setDismissKeyguard(false); 1268 ActivityOptions.abort(options); 1269 return err; 1270 } 1271 1272 final int startAnyPerm = mService.checkPermission( 1273 START_ANY_ACTIVITY, callingPid, callingUid); 1274 final int componentPerm = mService.checkComponentPermission(aInfo.permission, callingPid, 1275 callingUid, aInfo.applicationInfo.uid, aInfo.exported); 1276 if (startAnyPerm != PERMISSION_GRANTED && componentPerm != PERMISSION_GRANTED) { 1277 if (resultRecord != null) { 1278 resultStack.sendActivityResultLocked(-1, 1279 resultRecord, resultWho, requestCode, 1280 Activity.RESULT_CANCELED, null); 1281 } 1282 setDismissKeyguard(false); 1283 String msg; 1284 if (!aInfo.exported) { 1285 msg = "Permission Denial: starting " + intent.toString() 1286 + " from " + callerApp + " (pid=" + callingPid 1287 + ", uid=" + callingUid + ")" 1288 + " not exported from uid " + aInfo.applicationInfo.uid; 1289 } else { 1290 msg = "Permission Denial: starting " + intent.toString() 1291 + " from " + callerApp + " (pid=" + callingPid 1292 + ", uid=" + callingUid + ")" 1293 + " requires " + aInfo.permission; 1294 } 1295 Slog.w(TAG, msg); 1296 throw new SecurityException(msg); 1297 } 1298 1299 boolean abort = !mService.mIntentFirewall.checkStartActivity(intent, callingUid, 1300 callingPid, resolvedType, aInfo.applicationInfo); 1301 1302 if (mService.mController != null) { 1303 try { 1304 // The Intent we give to the watcher has the extra data 1305 // stripped off, since it can contain private information. 1306 Intent watchIntent = intent.cloneFilter(); 1307 abort |= !mService.mController.activityStarting(watchIntent, 1308 aInfo.applicationInfo.packageName); 1309 } catch (RemoteException e) { 1310 mService.mController = null; 1311 } 1312 } 1313 1314 if (abort) { 1315 if (resultRecord != null) { 1316 resultStack.sendActivityResultLocked(-1, resultRecord, resultWho, requestCode, 1317 Activity.RESULT_CANCELED, null); 1318 } 1319 // We pretend to the caller that it was really started, but 1320 // they will just get a cancel result. 1321 setDismissKeyguard(false); 1322 ActivityOptions.abort(options); 1323 return ActivityManager.START_SUCCESS; 1324 } 1325 1326 ActivityRecord r = new ActivityRecord(mService, callerApp, callingUid, callingPackage, 1327 intent, resolvedType, aInfo, mService.mConfiguration, resultRecord, resultWho, 1328 requestCode, componentSpecified, this, container); 1329 if (outActivity != null) { 1330 outActivity[0] = r; 1331 } 1332 1333 final ActivityStack stack = getFocusedStack(); 1334 if (voiceSession == null && (stack.mResumedActivity == null 1335 || stack.mResumedActivity.info.applicationInfo.uid != callingUid)) { 1336 if (!mService.checkAppSwitchAllowedLocked(callingPid, callingUid, "Activity start")) { 1337 PendingActivityLaunch pal = 1338 new PendingActivityLaunch(r, sourceRecord, startFlags, stack); 1339 mService.mPendingActivityLaunches.add(pal); 1340 setDismissKeyguard(false); 1341 ActivityOptions.abort(options); 1342 return ActivityManager.START_SWITCHES_CANCELED; 1343 } 1344 } 1345 1346 if (mService.mDidAppSwitch) { 1347 // This is the second allowed switch since we stopped switches, 1348 // so now just generally allow switches. Use case: user presses 1349 // home (switches disabled, switch to home, mDidAppSwitch now true); 1350 // user taps a home icon (coming from home so allowed, we hit here 1351 // and now allow anyone to switch again). 1352 mService.mAppSwitchesAllowedTime = 0; 1353 } else { 1354 mService.mDidAppSwitch = true; 1355 } 1356 1357 mService.doPendingActivityLaunchesLocked(false); 1358 1359 err = startActivityUncheckedLocked(r, sourceRecord, voiceSession, voiceInteractor, 1360 startFlags, true, options); 1361 1362 if (allPausedActivitiesComplete()) { 1363 // If someone asked to have the keyguard dismissed on the next 1364 // activity start, but we are not actually doing an activity 1365 // switch... just dismiss the keyguard now, because we 1366 // probably want to see whatever is behind it. 1367 dismissKeyguard(); 1368 } 1369 return err; 1370 } 1371 1372 ActivityStack adjustStackFocus(ActivityRecord r) { 1373 final TaskRecord task = r.task; 1374 if (r.isApplicationActivity() || (task != null && task.isApplicationTask())) { 1375 if (task != null) { 1376 final ActivityStack taskStack = task.stack; 1377 if (taskStack.isOnHomeDisplay()) { 1378 if (mFocusedStack != taskStack) { 1379 if (DEBUG_FOCUS || DEBUG_STACK) Slog.d(TAG, "adjustStackFocus: Setting " + 1380 "focused stack to r=" + r + " task=" + task); 1381 mFocusedStack = taskStack; 1382 } else { 1383 if (DEBUG_FOCUS || DEBUG_STACK) Slog.d(TAG, 1384 "adjustStackFocus: Focused stack already=" + mFocusedStack); 1385 } 1386 } 1387 return taskStack; 1388 } 1389 1390 final ActivityContainer container = r.mInitialActivityContainer; 1391 if (container != null) { 1392 // The first time put it on the desired stack, after this put on task stack. 1393 r.mInitialActivityContainer = null; 1394 return container.mStack; 1395 } 1396 1397 if (mFocusedStack != mHomeStack) { 1398 if (DEBUG_FOCUS || DEBUG_STACK) Slog.d(TAG, 1399 "adjustStackFocus: Have a focused stack=" + mFocusedStack); 1400 return mFocusedStack; 1401 } 1402 1403 final ArrayList<ActivityStack> homeDisplayStacks = mHomeStack.mStacks; 1404 for (int stackNdx = homeDisplayStacks.size() - 1; stackNdx >= 0; --stackNdx) { 1405 final ActivityStack stack = homeDisplayStacks.get(stackNdx); 1406 if (!stack.isHomeStack()) { 1407 if (DEBUG_FOCUS || DEBUG_STACK) Slog.d(TAG, 1408 "adjustStackFocus: Setting focused stack=" + stack); 1409 mFocusedStack = stack; 1410 return mFocusedStack; 1411 } 1412 } 1413 1414 // Need to create an app stack for this user. 1415 int stackId = createStackOnDisplay(getNextStackId(), Display.DEFAULT_DISPLAY); 1416 if (DEBUG_FOCUS || DEBUG_STACK) Slog.d(TAG, "adjustStackFocus: New stack r=" + r + 1417 " stackId=" + stackId); 1418 mFocusedStack = getStack(stackId); 1419 return mFocusedStack; 1420 } 1421 return mHomeStack; 1422 } 1423 1424 void setFocusedStack(ActivityRecord r) { 1425 if (r != null) { 1426 final TaskRecord task = r.task; 1427 boolean isHomeActivity = !r.isApplicationActivity(); 1428 if (!isHomeActivity && task != null) { 1429 isHomeActivity = !task.isApplicationTask(); 1430 } 1431 if (!isHomeActivity && task != null) { 1432 final ActivityRecord parent = task.stack.mActivityContainer.mParentActivity; 1433 isHomeActivity = parent != null && parent.isHomeActivity(); 1434 } 1435 moveHomeStack(isHomeActivity); 1436 } 1437 } 1438 1439 final int startActivityUncheckedLocked(ActivityRecord r, 1440 ActivityRecord sourceRecord, 1441 IVoiceInteractionSession voiceSession, IVoiceInteractor voiceInteractor, int startFlags, 1442 boolean doResume, Bundle options) { 1443 final Intent intent = r.intent; 1444 final int callingUid = r.launchedFromUid; 1445 1446 int launchFlags = intent.getFlags(); 1447 1448 // We'll invoke onUserLeaving before onPause only if the launching 1449 // activity did not explicitly state that this is an automated launch. 1450 mUserLeaving = (launchFlags&Intent.FLAG_ACTIVITY_NO_USER_ACTION) == 0; 1451 if (DEBUG_USER_LEAVING) Slog.v(TAG, "startActivity() => mUserLeaving=" + mUserLeaving); 1452 1453 // If the caller has asked not to resume at this point, we make note 1454 // of this in the record so that we can skip it when trying to find 1455 // the top running activity. 1456 if (!doResume) { 1457 r.delayedResume = true; 1458 } 1459 1460 ActivityRecord notTop = (launchFlags&Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOP) != 0 ? r : null; 1461 1462 // If the onlyIfNeeded flag is set, then we can do this if the activity 1463 // being launched is the same as the one making the call... or, as 1464 // a special case, if we do not know the caller then we count the 1465 // current top activity as the caller. 1466 if ((startFlags&ActivityManager.START_FLAG_ONLY_IF_NEEDED) != 0) { 1467 ActivityRecord checkedCaller = sourceRecord; 1468 if (checkedCaller == null) { 1469 checkedCaller = getFocusedStack().topRunningNonDelayedActivityLocked(notTop); 1470 } 1471 if (!checkedCaller.realActivity.equals(r.realActivity)) { 1472 // Caller is not the same as launcher, so always needed. 1473 startFlags &= ~ActivityManager.START_FLAG_ONLY_IF_NEEDED; 1474 } 1475 } 1476 1477 final boolean newDocument = intent.isDocument(); 1478 if (sourceRecord == null) { 1479 // This activity is not being started from another... in this 1480 // case we -always- start a new task. 1481 if ((launchFlags & Intent.FLAG_ACTIVITY_NEW_TASK) == 0) { 1482 Slog.w(TAG, "startActivity called from non-Activity context; forcing " + 1483 "Intent.FLAG_ACTIVITY_NEW_TASK for: " + intent); 1484 launchFlags |= Intent.FLAG_ACTIVITY_NEW_TASK; 1485 } 1486 } else if (newDocument) { 1487 if (r.launchMode != ActivityInfo.LAUNCH_MULTIPLE) { 1488 Slog.w(TAG, "FLAG_ACTIVITY_NEW_DOCUMENT and launchMode != \"standard\""); 1489 r.launchMode = ActivityInfo.LAUNCH_MULTIPLE; 1490 } 1491 } else if (sourceRecord.launchMode == ActivityInfo.LAUNCH_SINGLE_INSTANCE) { 1492 // The original activity who is starting us is running as a single 1493 // instance... this new activity it is starting must go on its 1494 // own task. 1495 launchFlags |= Intent.FLAG_ACTIVITY_NEW_TASK; 1496 } else if (r.launchMode == ActivityInfo.LAUNCH_SINGLE_INSTANCE 1497 || r.launchMode == ActivityInfo.LAUNCH_SINGLE_TASK) { 1498 // The activity being started is a single instance... it always 1499 // gets launched into its own task. 1500 launchFlags |= Intent.FLAG_ACTIVITY_NEW_TASK; 1501 } 1502 1503 ActivityInfo newTaskInfo = null; 1504 Intent newTaskIntent = null; 1505 final ActivityStack sourceStack; 1506 if (sourceRecord != null) { 1507 if (sourceRecord.finishing) { 1508 // If the source is finishing, we can't further count it as our source. This 1509 // is because the task it is associated with may now be empty and on its way out, 1510 // so we don't want to blindly throw it in to that task. Instead we will take 1511 // the NEW_TASK flow and try to find a task for it. But save the task information 1512 // so it can be used when creating the new task. 1513 if ((launchFlags & Intent.FLAG_ACTIVITY_NEW_TASK) == 0) { 1514 Slog.w(TAG, "startActivity called from finishing " + sourceRecord 1515 + "; forcing " + "Intent.FLAG_ACTIVITY_NEW_TASK for: " + intent); 1516 launchFlags |= Intent.FLAG_ACTIVITY_NEW_TASK; 1517 newTaskInfo = sourceRecord.info; 1518 newTaskIntent = sourceRecord.task.intent; 1519 } 1520 sourceRecord = null; 1521 sourceStack = null; 1522 } else { 1523 sourceStack = sourceRecord.task.stack; 1524 } 1525 } else { 1526 sourceStack = null; 1527 } 1528 1529 if (r.resultTo != null && (launchFlags & Intent.FLAG_ACTIVITY_NEW_TASK) != 0) { 1530 // For whatever reason this activity is being launched into a new 1531 // task... yet the caller has requested a result back. Well, that 1532 // is pretty messed up, so instead immediately send back a cancel 1533 // and let the new task continue launched as normal without a 1534 // dependency on its originator. 1535 Slog.w(TAG, "Activity is launching as a new task, so cancelling activity result."); 1536 r.resultTo.task.stack.sendActivityResultLocked(-1, 1537 r.resultTo, r.resultWho, r.requestCode, 1538 Activity.RESULT_CANCELED, null); 1539 r.resultTo = null; 1540 } 1541 1542 boolean addingToTask = false; 1543 boolean movedHome = false; 1544 TaskRecord reuseTask = null; 1545 ActivityStack targetStack; 1546 if (((launchFlags & Intent.FLAG_ACTIVITY_NEW_TASK) != 0 && 1547 (launchFlags & Intent.FLAG_ACTIVITY_MULTIPLE_TASK) == 0) 1548 || r.launchMode == ActivityInfo.LAUNCH_SINGLE_TASK 1549 || r.launchMode == ActivityInfo.LAUNCH_SINGLE_INSTANCE) { 1550 // If bring to front is requested, and no result is requested, and 1551 // we can find a task that was started with this same 1552 // component, then instead of launching bring that one to the front. 1553 if (r.resultTo == null) { 1554 // See if there is a task to bring to the front. If this is 1555 // a SINGLE_INSTANCE activity, there can be one and only one 1556 // instance of it in the history, and it is always in its own 1557 // unique task, so we do a special search. 1558 ActivityRecord intentActivity = r.launchMode != ActivityInfo.LAUNCH_SINGLE_INSTANCE 1559 ? findTaskLocked(r) 1560 : findActivityLocked(intent, r.info); 1561 if (intentActivity != null) { 1562 if (isLockTaskModeViolation(intentActivity.task)) { 1563 Slog.e(TAG, "moveTaskToFront: Attempt to violate Lock Task Mode"); 1564 return ActivityManager.START_RETURN_LOCK_TASK_MODE_VIOLATION; 1565 } 1566 if (r.task == null) { 1567 r.task = intentActivity.task; 1568 } 1569 targetStack = intentActivity.task.stack; 1570 targetStack.mLastPausedActivity = null; 1571 if (DEBUG_TASKS) Slog.d(TAG, "Bring to front target: " + targetStack 1572 + " from " + intentActivity); 1573 targetStack.moveToFront(); 1574 if (intentActivity.task.intent == null) { 1575 // This task was started because of movement of 1576 // the activity based on affinity... now that we 1577 // are actually launching it, we can assign the 1578 // base intent. 1579 intentActivity.task.setIntent(intent, r.info); 1580 } 1581 // If the target task is not in the front, then we need 1582 // to bring it to the front... except... well, with 1583 // SINGLE_TASK_LAUNCH it's not entirely clear. We'd like 1584 // to have the same behavior as if a new instance was 1585 // being started, which means not bringing it to the front 1586 // if the caller is not itself in the front. 1587 final ActivityStack lastStack = getLastStack(); 1588 ActivityRecord curTop = lastStack == null? 1589 null : lastStack.topRunningNonDelayedActivityLocked(notTop); 1590 if (curTop != null && (curTop.task != intentActivity.task || 1591 curTop.task != lastStack.topTask())) { 1592 r.intent.addFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT); 1593 if (sourceRecord == null || (sourceStack.topActivity() != null && 1594 sourceStack.topActivity().task == sourceRecord.task)) { 1595 // We really do want to push this one into the 1596 // user's face, right now. 1597 movedHome = true; 1598 targetStack.moveTaskToFrontLocked(intentActivity.task, r, options); 1599 if ((launchFlags & 1600 (FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_TASK_ON_HOME)) 1601 == (FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_TASK_ON_HOME)) { 1602 // Caller wants to appear on home activity. 1603 intentActivity.task.mOnTopOfHome = true; 1604 } 1605 options = null; 1606 } 1607 } 1608 // If the caller has requested that the target task be 1609 // reset, then do so. 1610 if ((launchFlags&Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED) != 0) { 1611 intentActivity = targetStack.resetTaskIfNeededLocked(intentActivity, r); 1612 } 1613 if ((startFlags&ActivityManager.START_FLAG_ONLY_IF_NEEDED) != 0) { 1614 // We don't need to start a new activity, and 1615 // the client said not to do anything if that 1616 // is the case, so this is it! And for paranoia, make 1617 // sure we have correctly resumed the top activity. 1618 if (doResume) { 1619 resumeTopActivitiesLocked(targetStack, null, options); 1620 } else { 1621 ActivityOptions.abort(options); 1622 } 1623 return ActivityManager.START_RETURN_INTENT_TO_CALLER; 1624 } 1625 if ((launchFlags & 1626 (Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TASK)) 1627 == (Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TASK)) { 1628 // The caller has requested to completely replace any 1629 // existing task with its new activity. Well that should 1630 // not be too hard... 1631 reuseTask = intentActivity.task; 1632 reuseTask.performClearTaskLocked(); 1633 reuseTask.setIntent(r.intent, r.info); 1634 } else if ((launchFlags&Intent.FLAG_ACTIVITY_CLEAR_TOP) != 0 1635 || r.launchMode == ActivityInfo.LAUNCH_SINGLE_TASK 1636 || r.launchMode == ActivityInfo.LAUNCH_SINGLE_INSTANCE) { 1637 // In this situation we want to remove all activities 1638 // from the task up to the one being started. In most 1639 // cases this means we are resetting the task to its 1640 // initial state. 1641 ActivityRecord top = 1642 intentActivity.task.performClearTaskLocked(r, launchFlags); 1643 if (top != null) { 1644 if (top.frontOfTask) { 1645 // Activity aliases may mean we use different 1646 // intents for the top activity, so make sure 1647 // the task now has the identity of the new 1648 // intent. 1649 top.task.setIntent(r.intent, r.info); 1650 } 1651 ActivityStack.logStartActivity(EventLogTags.AM_NEW_INTENT, 1652 r, top.task); 1653 top.deliverNewIntentLocked(callingUid, r.intent); 1654 } else { 1655 // A special case: we need to 1656 // start the activity because it is not currently 1657 // running, and the caller has asked to clear the 1658 // current task to have this activity at the top. 1659 addingToTask = true; 1660 // Now pretend like this activity is being started 1661 // by the top of its task, so it is put in the 1662 // right place. 1663 sourceRecord = intentActivity; 1664 } 1665 } else if (r.realActivity.equals(intentActivity.task.realActivity)) { 1666 // In this case the top activity on the task is the 1667 // same as the one being launched, so we take that 1668 // as a request to bring the task to the foreground. 1669 // If the top activity in the task is the root 1670 // activity, deliver this new intent to it if it 1671 // desires. 1672 if (((launchFlags&Intent.FLAG_ACTIVITY_SINGLE_TOP) != 0 1673 || r.launchMode == ActivityInfo.LAUNCH_SINGLE_TOP) 1674 && intentActivity.realActivity.equals(r.realActivity)) { 1675 ActivityStack.logStartActivity(EventLogTags.AM_NEW_INTENT, r, 1676 intentActivity.task); 1677 if (intentActivity.frontOfTask) { 1678 intentActivity.task.setIntent(r.intent, r.info); 1679 } 1680 intentActivity.deliverNewIntentLocked(callingUid, r.intent); 1681 } else if (!r.intent.filterEquals(intentActivity.task.intent)) { 1682 // In this case we are launching the root activity 1683 // of the task, but with a different intent. We 1684 // should start a new instance on top. 1685 addingToTask = true; 1686 sourceRecord = intentActivity; 1687 } 1688 } else if ((launchFlags&Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED) == 0) { 1689 // In this case an activity is being launched in to an 1690 // existing task, without resetting that task. This 1691 // is typically the situation of launching an activity 1692 // from a notification or shortcut. We want to place 1693 // the new activity on top of the current task. 1694 addingToTask = true; 1695 sourceRecord = intentActivity; 1696 } else if (!intentActivity.task.rootWasReset) { 1697 // In this case we are launching in to an existing task 1698 // that has not yet been started from its front door. 1699 // The current task has been brought to the front. 1700 // Ideally, we'd probably like to place this new task 1701 // at the bottom of its stack, but that's a little hard 1702 // to do with the current organization of the code so 1703 // for now we'll just drop it. 1704 intentActivity.task.setIntent(r.intent, r.info); 1705 } 1706 if (!addingToTask && reuseTask == null) { 1707 // We didn't do anything... but it was needed (a.k.a., client 1708 // don't use that intent!) And for paranoia, make 1709 // sure we have correctly resumed the top activity. 1710 if (doResume) { 1711 targetStack.resumeTopActivityLocked(null, options); 1712 } else { 1713 ActivityOptions.abort(options); 1714 } 1715 return ActivityManager.START_TASK_TO_FRONT; 1716 } 1717 } 1718 } 1719 } 1720 1721 //String uri = r.intent.toURI(); 1722 //Intent intent2 = new Intent(uri); 1723 //Slog.i(TAG, "Given intent: " + r.intent); 1724 //Slog.i(TAG, "URI is: " + uri); 1725 //Slog.i(TAG, "To intent: " + intent2); 1726 1727 if (r.packageName != null) { 1728 // If the activity being launched is the same as the one currently 1729 // at the top, then we need to check if it should only be launched 1730 // once. 1731 ActivityStack topStack = getFocusedStack(); 1732 ActivityRecord top = topStack.topRunningNonDelayedActivityLocked(notTop); 1733 if (top != null && r.resultTo == null) { 1734 if (top.realActivity.equals(r.realActivity) && top.userId == r.userId) { 1735 if (top.app != null && top.app.thread != null) { 1736 if ((launchFlags & Intent.FLAG_ACTIVITY_SINGLE_TOP) != 0 1737 || r.launchMode == ActivityInfo.LAUNCH_SINGLE_TOP 1738 || r.launchMode == ActivityInfo.LAUNCH_SINGLE_TASK) { 1739 ActivityStack.logStartActivity(EventLogTags.AM_NEW_INTENT, top, 1740 top.task); 1741 // For paranoia, make sure we have correctly 1742 // resumed the top activity. 1743 topStack.mLastPausedActivity = null; 1744 if (doResume) { 1745 resumeTopActivitiesLocked(); 1746 } 1747 ActivityOptions.abort(options); 1748 if ((startFlags&ActivityManager.START_FLAG_ONLY_IF_NEEDED) != 0) { 1749 // We don't need to start a new activity, and 1750 // the client said not to do anything if that 1751 // is the case, so this is it! 1752 return ActivityManager.START_RETURN_INTENT_TO_CALLER; 1753 } 1754 top.deliverNewIntentLocked(callingUid, r.intent); 1755 return ActivityManager.START_DELIVERED_TO_TOP; 1756 } 1757 } 1758 } 1759 } 1760 1761 } else { 1762 if (r.resultTo != null) { 1763 r.resultTo.task.stack.sendActivityResultLocked(-1, r.resultTo, r.resultWho, 1764 r.requestCode, Activity.RESULT_CANCELED, null); 1765 } 1766 ActivityOptions.abort(options); 1767 return ActivityManager.START_CLASS_NOT_FOUND; 1768 } 1769 1770 boolean newTask = false; 1771 boolean keepCurTransition = false; 1772 1773 // Should this be considered a new task? 1774 if (r.resultTo == null && !addingToTask 1775 && (launchFlags&Intent.FLAG_ACTIVITY_NEW_TASK) != 0) { 1776 if (isLockTaskModeViolation(reuseTask)) { 1777 Slog.e(TAG, "Attempted Lock Task Mode violation r=" + r); 1778 return ActivityManager.START_RETURN_LOCK_TASK_MODE_VIOLATION; 1779 } 1780 targetStack = adjustStackFocus(r); 1781 targetStack.moveToFront(); 1782 if (reuseTask == null) { 1783 r.setTask(targetStack.createTaskRecord(getNextTaskId(), 1784 newTaskInfo != null ? newTaskInfo : r.info, 1785 newTaskIntent != null ? newTaskIntent : intent, 1786 voiceSession, voiceInteractor, true), null, true); 1787 if (DEBUG_TASKS) Slog.v(TAG, "Starting new activity " + r + " in new task " + 1788 r.task); 1789 } else { 1790 r.setTask(reuseTask, reuseTask, true); 1791 } 1792 newTask = true; 1793 if (!movedHome) { 1794 if ((launchFlags & 1795 (Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_TASK_ON_HOME)) 1796 == (Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_TASK_ON_HOME)) { 1797 // Caller wants to appear on home activity, so before starting 1798 // their own activity we will bring home to the front. 1799 r.task.mOnTopOfHome = r.task.stack.isOnHomeDisplay(); 1800 } 1801 } 1802 } else if (sourceRecord != null) { 1803 TaskRecord sourceTask = sourceRecord.task; 1804 if (isLockTaskModeViolation(sourceTask)) { 1805 Slog.e(TAG, "Attempted Lock Task Mode violation r=" + r); 1806 return ActivityManager.START_RETURN_LOCK_TASK_MODE_VIOLATION; 1807 } 1808 targetStack = sourceTask.stack; 1809 targetStack.moveToFront(); 1810 mWindowManager.moveTaskToTop(sourceTask.taskId); 1811 if (!addingToTask && 1812 (launchFlags&Intent.FLAG_ACTIVITY_CLEAR_TOP) != 0) { 1813 // In this case, we are adding the activity to an existing 1814 // task, but the caller has asked to clear that task if the 1815 // activity is already running. 1816 ActivityRecord top = sourceTask.performClearTaskLocked(r, launchFlags); 1817 keepCurTransition = true; 1818 if (top != null) { 1819 ActivityStack.logStartActivity(EventLogTags.AM_NEW_INTENT, r, top.task); 1820 top.deliverNewIntentLocked(callingUid, r.intent); 1821 // For paranoia, make sure we have correctly 1822 // resumed the top activity. 1823 targetStack.mLastPausedActivity = null; 1824 if (doResume) { 1825 targetStack.resumeTopActivityLocked(null); 1826 } 1827 ActivityOptions.abort(options); 1828 return ActivityManager.START_DELIVERED_TO_TOP; 1829 } 1830 } else if (!addingToTask && 1831 (launchFlags&Intent.FLAG_ACTIVITY_REORDER_TO_FRONT) != 0) { 1832 // In this case, we are launching an activity in our own task 1833 // that may already be running somewhere in the history, and 1834 // we want to shuffle it to the front of the stack if so. 1835 final ActivityRecord top = sourceTask.findActivityInHistoryLocked(r); 1836 if (top != null) { 1837 final TaskRecord task = top.task; 1838 task.moveActivityToFrontLocked(top); 1839 ActivityStack.logStartActivity(EventLogTags.AM_NEW_INTENT, r, task); 1840 top.updateOptionsLocked(options); 1841 top.deliverNewIntentLocked(callingUid, r.intent); 1842 targetStack.mLastPausedActivity = null; 1843 if (doResume) { 1844 targetStack.resumeTopActivityLocked(null); 1845 } 1846 return ActivityManager.START_DELIVERED_TO_TOP; 1847 } 1848 } 1849 // An existing activity is starting this new activity, so we want 1850 // to keep the new one in the same task as the one that is starting 1851 // it. 1852 r.setTask(sourceTask, sourceRecord.thumbHolder, false); 1853 if (DEBUG_TASKS) Slog.v(TAG, "Starting new activity " + r 1854 + " in existing task " + r.task + " from source " + sourceRecord); 1855 1856 } else { 1857 // This not being started from an existing activity, and not part 1858 // of a new task... just put it in the top task, though these days 1859 // this case should never happen. 1860 targetStack = adjustStackFocus(r); 1861 targetStack.moveToFront(); 1862 ActivityRecord prev = targetStack.topActivity(); 1863 r.setTask(prev != null ? prev.task 1864 : targetStack.createTaskRecord(getNextTaskId(), r.info, intent, null, null, true), 1865 null, true); 1866 mWindowManager.moveTaskToTop(r.task.taskId); 1867 if (DEBUG_TASKS) Slog.v(TAG, "Starting new activity " + r 1868 + " in new guessed " + r.task); 1869 } 1870 1871 mService.grantUriPermissionFromIntentLocked(callingUid, r.packageName, 1872 intent, r.getUriPermissionsLocked()); 1873 1874 if (newTask) { 1875 EventLog.writeEvent(EventLogTags.AM_CREATE_TASK, r.userId, r.task.taskId); 1876 } 1877 ActivityStack.logStartActivity(EventLogTags.AM_CREATE_ACTIVITY, r, r.task); 1878 targetStack.mLastPausedActivity = null; 1879 targetStack.startActivityLocked(r, newTask, doResume, keepCurTransition, options); 1880 mService.setFocusedActivityLocked(r); 1881 return ActivityManager.START_SUCCESS; 1882 } 1883 1884 void acquireLaunchWakelock() { 1885 if (VALIDATE_WAKE_LOCK_CALLER && Binder.getCallingUid() != Process.myUid()) { 1886 throw new IllegalStateException("Calling must be system uid"); 1887 } 1888 mLaunchingActivity.acquire(); 1889 if (!mHandler.hasMessages(LAUNCH_TIMEOUT_MSG)) { 1890 // To be safe, don't allow the wake lock to be held for too long. 1891 mHandler.sendEmptyMessageDelayed(LAUNCH_TIMEOUT_MSG, LAUNCH_TIMEOUT); 1892 } 1893 } 1894 1895 // Checked. 1896 final ActivityRecord activityIdleInternalLocked(final IBinder token, boolean fromTimeout, 1897 Configuration config) { 1898 if (localLOGV) Slog.v(TAG, "Activity idle: " + token); 1899 1900 ArrayList<ActivityRecord> stops = null; 1901 ArrayList<ActivityRecord> finishes = null; 1902 ArrayList<UserStartedState> startingUsers = null; 1903 int NS = 0; 1904 int NF = 0; 1905 boolean booting = false; 1906 boolean enableScreen = false; 1907 boolean activityRemoved = false; 1908 1909 ActivityRecord r = ActivityRecord.forToken(token); 1910 if (r != null) { 1911 if (DEBUG_IDLE) Slog.d(TAG, "activityIdleInternalLocked: Callers=" + 1912 Debug.getCallers(4)); 1913 mHandler.removeMessages(IDLE_TIMEOUT_MSG, r); 1914 r.finishLaunchTickingLocked(); 1915 if (fromTimeout) { 1916 reportActivityLaunchedLocked(fromTimeout, r, -1, -1); 1917 } 1918 1919 // This is a hack to semi-deal with a race condition 1920 // in the client where it can be constructed with a 1921 // newer configuration from when we asked it to launch. 1922 // We'll update with whatever configuration it now says 1923 // it used to launch. 1924 if (config != null) { 1925 r.configuration = config; 1926 } 1927 1928 // We are now idle. If someone is waiting for a thumbnail from 1929 // us, we can now deliver. 1930 r.idle = true; 1931 1932 //Slog.i(TAG, "IDLE: mBooted=" + mBooted + ", fromTimeout=" + fromTimeout); 1933 if (!mService.mBooted && isFrontStack(r.task.stack)) { 1934 mService.mBooted = true; 1935 enableScreen = true; 1936 } 1937 } 1938 1939 if (allResumedActivitiesIdle()) { 1940 if (r != null) { 1941 mService.scheduleAppGcsLocked(); 1942 } 1943 1944 if (mLaunchingActivity.isHeld()) { 1945 mHandler.removeMessages(LAUNCH_TIMEOUT_MSG); 1946 if (VALIDATE_WAKE_LOCK_CALLER && 1947 Binder.getCallingUid() != Process.myUid()) { 1948 throw new IllegalStateException("Calling must be system uid"); 1949 } 1950 mLaunchingActivity.release(); 1951 } 1952 ensureActivitiesVisibleLocked(null, 0); 1953 } 1954 1955 // Atomically retrieve all of the other things to do. 1956 stops = processStoppingActivitiesLocked(true); 1957 NS = stops != null ? stops.size() : 0; 1958 if ((NF=mFinishingActivities.size()) > 0) { 1959 finishes = new ArrayList<ActivityRecord>(mFinishingActivities); 1960 mFinishingActivities.clear(); 1961 } 1962 1963 if (isFrontStack(mHomeStack)) { 1964 booting = mService.mBooting; 1965 mService.mBooting = false; 1966 } 1967 1968 if (mStartingUsers.size() > 0) { 1969 startingUsers = new ArrayList<UserStartedState>(mStartingUsers); 1970 mStartingUsers.clear(); 1971 } 1972 1973 // Stop any activities that are scheduled to do so but have been 1974 // waiting for the next one to start. 1975 for (int i = 0; i < NS; i++) { 1976 r = stops.get(i); 1977 final ActivityStack stack = r.task.stack; 1978 if (r.finishing) { 1979 stack.finishCurrentActivityLocked(r, ActivityStack.FINISH_IMMEDIATELY, false); 1980 } else { 1981 stack.stopActivityLocked(r); 1982 } 1983 } 1984 1985 // Finish any activities that are scheduled to do so but have been 1986 // waiting for the next one to start. 1987 for (int i = 0; i < NF; i++) { 1988 r = finishes.get(i); 1989 activityRemoved |= r.task.stack.destroyActivityLocked(r, true, false, "finish-idle"); 1990 } 1991 1992 if (booting) { 1993 mService.finishBooting(); 1994 } else { 1995 // Complete user switch 1996 if (startingUsers != null) { 1997 for (int i = 0; i < startingUsers.size(); i++) { 1998 mService.finishUserSwitch(startingUsers.get(i)); 1999 } 2000 } 2001 // Complete starting up of background users 2002 if (mStartingBackgroundUsers.size() > 0) { 2003 startingUsers = new ArrayList<UserStartedState>(mStartingBackgroundUsers); 2004 mStartingBackgroundUsers.clear(); 2005 for (int i = 0; i < startingUsers.size(); i++) { 2006 mService.finishUserBoot(startingUsers.get(i)); 2007 } 2008 } 2009 } 2010 2011 mService.trimApplications(); 2012 //dump(); 2013 //mWindowManager.dump(); 2014 2015 if (enableScreen) { 2016 mService.enableScreenAfterBoot(); 2017 } 2018 2019 if (activityRemoved) { 2020 resumeTopActivitiesLocked(); 2021 } 2022 2023 return r; 2024 } 2025 2026 boolean handleAppDiedLocked(ProcessRecord app) { 2027 boolean hasVisibleActivities = false; 2028 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2029 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2030 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2031 hasVisibleActivities |= stacks.get(stackNdx).handleAppDiedLocked(app); 2032 } 2033 } 2034 return hasVisibleActivities; 2035 } 2036 2037 void closeSystemDialogsLocked() { 2038 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2039 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2040 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2041 stacks.get(stackNdx).closeSystemDialogsLocked(); 2042 } 2043 } 2044 } 2045 2046 void removeUserLocked(int userId) { 2047 mUserStackInFront.delete(userId); 2048 } 2049 2050 /** 2051 * @return true if some activity was finished (or would have finished if doit were true). 2052 */ 2053 boolean forceStopPackageLocked(String name, boolean doit, boolean evenPersistent, int userId) { 2054 boolean didSomething = false; 2055 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2056 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2057 final int numStacks = stacks.size(); 2058 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 2059 final ActivityStack stack = stacks.get(stackNdx); 2060 if (stack.forceStopPackageLocked(name, doit, evenPersistent, userId)) { 2061 didSomething = true; 2062 } 2063 } 2064 } 2065 return didSomething; 2066 } 2067 2068 void updatePreviousProcessLocked(ActivityRecord r) { 2069 // Now that this process has stopped, we may want to consider 2070 // it to be the previous app to try to keep around in case 2071 // the user wants to return to it. 2072 2073 // First, found out what is currently the foreground app, so that 2074 // we don't blow away the previous app if this activity is being 2075 // hosted by the process that is actually still the foreground. 2076 ProcessRecord fgApp = null; 2077 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2078 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2079 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2080 final ActivityStack stack = stacks.get(stackNdx); 2081 if (isFrontStack(stack)) { 2082 if (stack.mResumedActivity != null) { 2083 fgApp = stack.mResumedActivity.app; 2084 } else if (stack.mPausingActivity != null) { 2085 fgApp = stack.mPausingActivity.app; 2086 } 2087 break; 2088 } 2089 } 2090 } 2091 2092 // Now set this one as the previous process, only if that really 2093 // makes sense to. 2094 if (r.app != null && fgApp != null && r.app != fgApp 2095 && r.lastVisibleTime > mService.mPreviousProcessVisibleTime 2096 && r.app != mService.mHomeProcess) { 2097 mService.mPreviousProcess = r.app; 2098 mService.mPreviousProcessVisibleTime = r.lastVisibleTime; 2099 } 2100 } 2101 2102 boolean resumeTopActivitiesLocked() { 2103 return resumeTopActivitiesLocked(null, null, null); 2104 } 2105 2106 boolean resumeTopActivitiesLocked(ActivityStack targetStack, ActivityRecord target, 2107 Bundle targetOptions) { 2108 if (targetStack == null) { 2109 targetStack = getFocusedStack(); 2110 } 2111 // Do targetStack first. 2112 boolean result = false; 2113 if (isFrontStack(targetStack)) { 2114 result = targetStack.resumeTopActivityLocked(target, targetOptions); 2115 } 2116 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2117 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2118 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2119 final ActivityStack stack = stacks.get(stackNdx); 2120 if (stack == targetStack) { 2121 // Already started above. 2122 continue; 2123 } 2124 if (isFrontStack(stack)) { 2125 stack.resumeTopActivityLocked(null); 2126 } 2127 } 2128 } 2129 return result; 2130 } 2131 2132 void finishTopRunningActivityLocked(ProcessRecord app) { 2133 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2134 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2135 final int numStacks = stacks.size(); 2136 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 2137 final ActivityStack stack = stacks.get(stackNdx); 2138 stack.finishTopRunningActivityLocked(app); 2139 } 2140 } 2141 } 2142 2143 void findTaskToMoveToFrontLocked(TaskRecord task, int flags, Bundle options) { 2144 if ((flags & ActivityManager.MOVE_TASK_NO_USER_ACTION) == 0) { 2145 mUserLeaving = true; 2146 } 2147 if ((flags & ActivityManager.MOVE_TASK_WITH_HOME) != 0) { 2148 // Caller wants the home activity moved with it. To accomplish this, 2149 // we'll just indicate that this task returns to the home task. 2150 task.mOnTopOfHome = true; 2151 } 2152 task.stack.moveTaskToFrontLocked(task, null, options); 2153 if (DEBUG_STACK) Slog.d(TAG, "findTaskToMoveToFront: moved to front of stack=" 2154 + task.stack); 2155 } 2156 2157 ActivityStack getStack(int stackId) { 2158 ActivityContainer activityContainer = mActivityContainers.get(stackId); 2159 if (activityContainer != null) { 2160 return activityContainer.mStack; 2161 } 2162 return null; 2163 } 2164 2165 ArrayList<ActivityStack> getStacks() { 2166 ArrayList<ActivityStack> allStacks = new ArrayList<ActivityStack>(); 2167 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2168 allStacks.addAll(mActivityDisplays.valueAt(displayNdx).mStacks); 2169 } 2170 return allStacks; 2171 } 2172 2173 IBinder getHomeActivityToken() { 2174 final ArrayList<TaskRecord> tasks = mHomeStack.getAllTasks(); 2175 for (int taskNdx = tasks.size() - 1; taskNdx >= 0; --taskNdx) { 2176 final TaskRecord task = tasks.get(taskNdx); 2177 if (task.isHomeTask()) { 2178 final ArrayList<ActivityRecord> activities = task.mActivities; 2179 for (int activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) { 2180 final ActivityRecord r = activities.get(activityNdx); 2181 if (r.isHomeActivity()) { 2182 return r.appToken; 2183 } 2184 } 2185 } 2186 } 2187 return null; 2188 } 2189 2190 ActivityContainer createActivityContainer(ActivityRecord parentActivity, 2191 IActivityContainerCallback callback) { 2192 ActivityContainer activityContainer = new VirtualActivityContainer(parentActivity, callback); 2193 mActivityContainers.put(activityContainer.mStackId, activityContainer); 2194 parentActivity.mChildContainers.add(activityContainer); 2195 return activityContainer; 2196 } 2197 2198 void removeChildActivityContainers(ActivityRecord parentActivity) { 2199 final ArrayList<ActivityContainer> childStacks = parentActivity.mChildContainers; 2200 for (int containerNdx = childStacks.size() - 1; containerNdx >= 0; --containerNdx) { 2201 ActivityContainer container = childStacks.remove(containerNdx); 2202 container.release(); 2203 } 2204 } 2205 2206 void deleteActivityContainer(IActivityContainer container) { 2207 ActivityContainer activityContainer = (ActivityContainer)container; 2208 if (activityContainer != null) { 2209 activityContainer.mStack.finishAllActivitiesLocked(); 2210 final ActivityRecord parent = activityContainer.mParentActivity; 2211 if (parent != null) { 2212 parent.mChildContainers.remove(activityContainer); 2213 } 2214 final int stackId = activityContainer.mStackId; 2215 mActivityContainers.remove(stackId); 2216 mWindowManager.removeStack(stackId); 2217 } 2218 } 2219 2220 private int createStackOnDisplay(int stackId, int displayId) { 2221 ActivityDisplay activityDisplay = mActivityDisplays.get(displayId); 2222 if (activityDisplay == null) { 2223 return -1; 2224 } 2225 2226 ActivityContainer activityContainer = new ActivityContainer(stackId); 2227 mActivityContainers.put(stackId, activityContainer); 2228 activityContainer.attachToDisplayLocked(activityDisplay); 2229 return stackId; 2230 } 2231 2232 int getNextStackId() { 2233 while (true) { 2234 if (++mLastStackId <= HOME_STACK_ID) { 2235 mLastStackId = HOME_STACK_ID + 1; 2236 } 2237 if (getStack(mLastStackId) == null) { 2238 break; 2239 } 2240 } 2241 return mLastStackId; 2242 } 2243 2244 void moveTaskToStack(int taskId, int stackId, boolean toTop) { 2245 final TaskRecord task = anyTaskForIdLocked(taskId); 2246 if (task == null) { 2247 return; 2248 } 2249 final ActivityStack stack = getStack(stackId); 2250 if (stack == null) { 2251 Slog.w(TAG, "moveTaskToStack: no stack for id=" + stackId); 2252 return; 2253 } 2254 task.stack.removeTask(task, true); 2255 stack.addTask(task, toTop, true); 2256 mWindowManager.addTask(taskId, stackId, toTop); 2257 resumeTopActivitiesLocked(); 2258 } 2259 2260 ActivityRecord findTaskLocked(ActivityRecord r) { 2261 if (DEBUG_TASKS) Slog.d(TAG, "Looking for task of " + r); 2262 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2263 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2264 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2265 final ActivityStack stack = stacks.get(stackNdx); 2266 if (!r.isApplicationActivity() && !stack.isHomeStack()) { 2267 if (DEBUG_TASKS) Slog.d(TAG, "Skipping stack: " + stack); 2268 continue; 2269 } 2270 final ActivityRecord ar = stack.findTaskLocked(r); 2271 if (ar != null) { 2272 return ar; 2273 } 2274 } 2275 } 2276 if (DEBUG_TASKS) Slog.d(TAG, "No task found"); 2277 return null; 2278 } 2279 2280 ActivityRecord findActivityLocked(Intent intent, ActivityInfo info) { 2281 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2282 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2283 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2284 final ActivityRecord ar = stacks.get(stackNdx).findActivityLocked(intent, info); 2285 if (ar != null) { 2286 return ar; 2287 } 2288 } 2289 } 2290 return null; 2291 } 2292 2293 void goingToSleepLocked() { 2294 scheduleSleepTimeout(); 2295 if (!mGoingToSleep.isHeld()) { 2296 mGoingToSleep.acquire(); 2297 if (mLaunchingActivity.isHeld()) { 2298 if (VALIDATE_WAKE_LOCK_CALLER && Binder.getCallingUid() != Process.myUid()) { 2299 throw new IllegalStateException("Calling must be system uid"); 2300 } 2301 mLaunchingActivity.release(); 2302 mService.mHandler.removeMessages(LAUNCH_TIMEOUT_MSG); 2303 } 2304 } 2305 checkReadyForSleepLocked(); 2306 setLockTaskModeLocked(null); 2307 } 2308 2309 boolean shutdownLocked(int timeout) { 2310 goingToSleepLocked(); 2311 2312 boolean timedout = false; 2313 final long endTime = System.currentTimeMillis() + timeout; 2314 while (true) { 2315 boolean cantShutdown = false; 2316 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2317 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2318 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2319 cantShutdown |= stacks.get(stackNdx).checkReadyForSleepLocked(); 2320 } 2321 } 2322 if (cantShutdown) { 2323 long timeRemaining = endTime - System.currentTimeMillis(); 2324 if (timeRemaining > 0) { 2325 try { 2326 mService.wait(timeRemaining); 2327 } catch (InterruptedException e) { 2328 } 2329 } else { 2330 Slog.w(TAG, "Activity manager shutdown timed out"); 2331 timedout = true; 2332 break; 2333 } 2334 } else { 2335 break; 2336 } 2337 } 2338 2339 // Force checkReadyForSleep to complete. 2340 mSleepTimeout = true; 2341 checkReadyForSleepLocked(); 2342 2343 return timedout; 2344 } 2345 2346 void comeOutOfSleepIfNeededLocked() { 2347 removeSleepTimeouts(); 2348 if (mGoingToSleep.isHeld()) { 2349 mGoingToSleep.release(); 2350 } 2351 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2352 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2353 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2354 final ActivityStack stack = stacks.get(stackNdx); 2355 stack.awakeFromSleepingLocked(); 2356 if (isFrontStack(stack)) { 2357 resumeTopActivitiesLocked(); 2358 } 2359 } 2360 } 2361 mGoingToSleepActivities.clear(); 2362 } 2363 2364 void activitySleptLocked(ActivityRecord r) { 2365 mGoingToSleepActivities.remove(r); 2366 checkReadyForSleepLocked(); 2367 } 2368 2369 void checkReadyForSleepLocked() { 2370 if (!mService.isSleepingOrShuttingDown()) { 2371 // Do not care. 2372 return; 2373 } 2374 2375 if (!mSleepTimeout) { 2376 boolean dontSleep = false; 2377 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2378 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2379 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2380 dontSleep |= stacks.get(stackNdx).checkReadyForSleepLocked(); 2381 } 2382 } 2383 2384 if (mStoppingActivities.size() > 0) { 2385 // Still need to tell some activities to stop; can't sleep yet. 2386 if (DEBUG_PAUSE) Slog.v(TAG, "Sleep still need to stop " 2387 + mStoppingActivities.size() + " activities"); 2388 scheduleIdleLocked(); 2389 dontSleep = true; 2390 } 2391 2392 if (mGoingToSleepActivities.size() > 0) { 2393 // Still need to tell some activities to sleep; can't sleep yet. 2394 if (DEBUG_PAUSE) Slog.v(TAG, "Sleep still need to sleep " 2395 + mGoingToSleepActivities.size() + " activities"); 2396 dontSleep = true; 2397 } 2398 2399 if (dontSleep) { 2400 return; 2401 } 2402 } 2403 2404 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2405 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2406 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2407 stacks.get(stackNdx).goToSleep(); 2408 } 2409 } 2410 2411 removeSleepTimeouts(); 2412 2413 if (mGoingToSleep.isHeld()) { 2414 mGoingToSleep.release(); 2415 } 2416 if (mService.mShuttingDown) { 2417 mService.notifyAll(); 2418 } 2419 } 2420 2421 boolean reportResumedActivityLocked(ActivityRecord r) { 2422 final ActivityStack stack = r.task.stack; 2423 if (isFrontStack(stack)) { 2424 mService.updateUsageStats(r, true); 2425 } 2426 if (allResumedActivitiesComplete()) { 2427 ensureActivitiesVisibleLocked(null, 0); 2428 mWindowManager.executeAppTransition(); 2429 return true; 2430 } 2431 return false; 2432 } 2433 2434 void handleAppCrashLocked(ProcessRecord app) { 2435 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2436 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2437 final int numStacks = stacks.size(); 2438 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 2439 final ActivityStack stack = stacks.get(stackNdx); 2440 stack.handleAppCrashLocked(app); 2441 } 2442 } 2443 } 2444 2445 void ensureActivitiesVisibleLocked(ActivityRecord starting, int configChanges) { 2446 // First the front stacks. In case any are not fullscreen and are in front of home. 2447 boolean showHomeBehindStack = false; 2448 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2449 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2450 final int topStackNdx = stacks.size() - 1; 2451 for (int stackNdx = topStackNdx; stackNdx >= 0; --stackNdx) { 2452 final ActivityStack stack = stacks.get(stackNdx); 2453 if (stackNdx == topStackNdx) { 2454 // Top stack. 2455 showHomeBehindStack = 2456 stack.ensureActivitiesVisibleLocked(starting, configChanges); 2457 } else { 2458 // Back stack. 2459 stack.ensureActivitiesVisibleLocked(starting, configChanges, 2460 showHomeBehindStack); 2461 } 2462 } 2463 } 2464 } 2465 2466 void scheduleDestroyAllActivities(ProcessRecord app, String reason) { 2467 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2468 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2469 final int numStacks = stacks.size(); 2470 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 2471 final ActivityStack stack = stacks.get(stackNdx); 2472 stack.scheduleDestroyActivities(app, false, reason); 2473 } 2474 } 2475 } 2476 2477 boolean switchUserLocked(int userId, UserStartedState uss) { 2478 mUserStackInFront.put(mCurrentUser, getFocusedStack().getStackId()); 2479 final int restoreStackId = mUserStackInFront.get(userId, HOME_STACK_ID); 2480 mCurrentUser = userId; 2481 2482 mStartingUsers.add(uss); 2483 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2484 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2485 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2486 final ActivityStack stack = stacks.get(stackNdx); 2487 stack.switchUserLocked(userId); 2488 TaskRecord task = stack.topTask(); 2489 if (task != null) { 2490 mWindowManager.moveTaskToTop(task.taskId); 2491 } 2492 } 2493 } 2494 2495 ActivityStack stack = getStack(restoreStackId); 2496 if (stack == null) { 2497 stack = mHomeStack; 2498 } 2499 final boolean homeInFront = stack.isHomeStack(); 2500 if (stack.isOnHomeDisplay()) { 2501 moveHomeStack(homeInFront); 2502 TaskRecord task = stack.topTask(); 2503 if (task != null) { 2504 mWindowManager.moveTaskToTop(task.taskId); 2505 } 2506 } else { 2507 // Stack was moved to another display while user was swapped out. 2508 resumeHomeActivity(null); 2509 } 2510 return homeInFront; 2511 } 2512 2513 /** 2514 * Add background users to send boot completed events to. 2515 * @param userId The user being started in the background 2516 * @param uss The state object for the user. 2517 */ 2518 public void startBackgroundUserLocked(int userId, UserStartedState uss) { 2519 mStartingBackgroundUsers.add(uss); 2520 } 2521 2522 final ArrayList<ActivityRecord> processStoppingActivitiesLocked(boolean remove) { 2523 int N = mStoppingActivities.size(); 2524 if (N <= 0) return null; 2525 2526 ArrayList<ActivityRecord> stops = null; 2527 2528 final boolean nowVisible = allResumedActivitiesVisible(); 2529 for (int i=0; i<N; i++) { 2530 ActivityRecord s = mStoppingActivities.get(i); 2531 if (localLOGV) Slog.v(TAG, "Stopping " + s + ": nowVisible=" 2532 + nowVisible + " waitingVisible=" + s.waitingVisible 2533 + " finishing=" + s.finishing); 2534 if (s.waitingVisible && nowVisible) { 2535 mWaitingVisibleActivities.remove(s); 2536 s.waitingVisible = false; 2537 if (s.finishing) { 2538 // If this activity is finishing, it is sitting on top of 2539 // everyone else but we now know it is no longer needed... 2540 // so get rid of it. Otherwise, we need to go through the 2541 // normal flow and hide it once we determine that it is 2542 // hidden by the activities in front of it. 2543 if (localLOGV) Slog.v(TAG, "Before stopping, can hide: " + s); 2544 mWindowManager.setAppVisibility(s.appToken, false); 2545 } 2546 } 2547 if ((!s.waitingVisible || mService.isSleepingOrShuttingDown()) && remove) { 2548 if (localLOGV) Slog.v(TAG, "Ready to stop: " + s); 2549 if (stops == null) { 2550 stops = new ArrayList<ActivityRecord>(); 2551 } 2552 stops.add(s); 2553 mStoppingActivities.remove(i); 2554 N--; 2555 i--; 2556 } 2557 } 2558 2559 return stops; 2560 } 2561 2562 void validateTopActivitiesLocked() { 2563 // FIXME 2564/* for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2565 final ActivityStack stack = stacks.get(stackNdx); 2566 final ActivityRecord r = stack.topRunningActivityLocked(null); 2567 final ActivityState state = r == null ? ActivityState.DESTROYED : r.state; 2568 if (isFrontStack(stack)) { 2569 if (r == null) { 2570 Slog.e(TAG, "validateTop...: null top activity, stack=" + stack); 2571 } else { 2572 final ActivityRecord pausing = stack.mPausingActivity; 2573 if (pausing != null && pausing == r) { 2574 Slog.e(TAG, "validateTop...: top stack has pausing activity r=" + r + 2575 " state=" + state); 2576 } 2577 if (state != ActivityState.INITIALIZING && state != ActivityState.RESUMED) { 2578 Slog.e(TAG, "validateTop...: activity in front not resumed r=" + r + 2579 " state=" + state); 2580 } 2581 } 2582 } else { 2583 final ActivityRecord resumed = stack.mResumedActivity; 2584 if (resumed != null && resumed == r) { 2585 Slog.e(TAG, "validateTop...: back stack has resumed activity r=" + r + 2586 " state=" + state); 2587 } 2588 if (r != null && (state == ActivityState.INITIALIZING 2589 || state == ActivityState.RESUMED)) { 2590 Slog.e(TAG, "validateTop...: activity in back resumed r=" + r + 2591 " state=" + state); 2592 } 2593 } 2594 } 2595*/ 2596 } 2597 2598 public void dump(PrintWriter pw, String prefix) { 2599 pw.print(prefix); pw.print("mDismissKeyguardOnNextActivity="); 2600 pw.println(mDismissKeyguardOnNextActivity); 2601 pw.print(prefix); pw.print("mFocusedStack=" + mFocusedStack); 2602 pw.print(" mLastFocusedStack="); pw.println(mLastFocusedStack); 2603 pw.print(prefix); pw.println("mSleepTimeout=" + mSleepTimeout); 2604 pw.print(prefix); pw.println("mCurTaskId=" + mCurTaskId); 2605 pw.print(prefix); pw.println("mUserStackInFront=" + mUserStackInFront); 2606 pw.print(prefix); pw.println("mActivityContainers=" + mActivityContainers); 2607 } 2608 2609 ArrayList<ActivityRecord> getDumpActivitiesLocked(String name) { 2610 return getFocusedStack().getDumpActivitiesLocked(name); 2611 } 2612 2613 static boolean printThisActivity(PrintWriter pw, ActivityRecord activity, String dumpPackage, 2614 boolean needSep, String prefix) { 2615 if (activity != null) { 2616 if (dumpPackage == null || dumpPackage.equals(activity.packageName)) { 2617 if (needSep) { 2618 pw.println(); 2619 } 2620 pw.print(prefix); 2621 pw.println(activity); 2622 return true; 2623 } 2624 } 2625 return false; 2626 } 2627 2628 boolean dumpActivitiesLocked(FileDescriptor fd, PrintWriter pw, boolean dumpAll, 2629 boolean dumpClient, String dumpPackage) { 2630 boolean printed = false; 2631 boolean needSep = false; 2632 for (int displayNdx = 0; displayNdx < mActivityDisplays.size(); ++displayNdx) { 2633 ActivityDisplay activityDisplay = mActivityDisplays.valueAt(displayNdx); 2634 pw.print("Display #"); pw.println(activityDisplay.mDisplayId); 2635 ArrayList<ActivityStack> stacks = activityDisplay.mStacks; 2636 final int numStacks = stacks.size(); 2637 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 2638 final ActivityStack stack = stacks.get(stackNdx); 2639 StringBuilder stackHeader = new StringBuilder(128); 2640 stackHeader.append(" Stack #"); 2641 stackHeader.append(stack.mStackId); 2642 stackHeader.append(":"); 2643 printed |= stack.dumpActivitiesLocked(fd, pw, dumpAll, dumpClient, dumpPackage, 2644 needSep, stackHeader.toString()); 2645 printed |= dumpHistoryList(fd, pw, stack.mLRUActivities, " ", "Run", false, 2646 !dumpAll, false, dumpPackage, true, 2647 " Running activities (most recent first):", null); 2648 2649 needSep = printed; 2650 boolean pr = printThisActivity(pw, stack.mPausingActivity, dumpPackage, needSep, 2651 " mPausingActivity: "); 2652 if (pr) { 2653 printed = true; 2654 needSep = false; 2655 } 2656 pr = printThisActivity(pw, stack.mResumedActivity, dumpPackage, needSep, 2657 " mResumedActivity: "); 2658 if (pr) { 2659 printed = true; 2660 needSep = false; 2661 } 2662 if (dumpAll) { 2663 pr = printThisActivity(pw, stack.mLastPausedActivity, dumpPackage, needSep, 2664 " mLastPausedActivity: "); 2665 if (pr) { 2666 printed = true; 2667 needSep = true; 2668 } 2669 printed |= printThisActivity(pw, stack.mLastNoHistoryActivity, dumpPackage, 2670 needSep, " mLastNoHistoryActivity: "); 2671 } 2672 needSep = printed; 2673 } 2674 } 2675 2676 printed |= dumpHistoryList(fd, pw, mFinishingActivities, " ", "Fin", false, !dumpAll, 2677 false, dumpPackage, true, " Activities waiting to finish:", null); 2678 printed |= dumpHistoryList(fd, pw, mStoppingActivities, " ", "Stop", false, !dumpAll, 2679 false, dumpPackage, true, " Activities waiting to stop:", null); 2680 printed |= dumpHistoryList(fd, pw, mWaitingVisibleActivities, " ", "Wait", false, !dumpAll, 2681 false, dumpPackage, true, " Activities waiting for another to become visible:", 2682 null); 2683 printed |= dumpHistoryList(fd, pw, mGoingToSleepActivities, " ", "Sleep", false, !dumpAll, 2684 false, dumpPackage, true, " Activities waiting to sleep:", null); 2685 printed |= dumpHistoryList(fd, pw, mGoingToSleepActivities, " ", "Sleep", false, !dumpAll, 2686 false, dumpPackage, true, " Activities waiting to sleep:", null); 2687 2688 return printed; 2689 } 2690 2691 static boolean dumpHistoryList(FileDescriptor fd, PrintWriter pw, List<ActivityRecord> list, 2692 String prefix, String label, boolean complete, boolean brief, boolean client, 2693 String dumpPackage, boolean needNL, String header1, String header2) { 2694 TaskRecord lastTask = null; 2695 String innerPrefix = null; 2696 String[] args = null; 2697 boolean printed = false; 2698 for (int i=list.size()-1; i>=0; i--) { 2699 final ActivityRecord r = list.get(i); 2700 if (dumpPackage != null && !dumpPackage.equals(r.packageName)) { 2701 continue; 2702 } 2703 if (innerPrefix == null) { 2704 innerPrefix = prefix + " "; 2705 args = new String[0]; 2706 } 2707 printed = true; 2708 final boolean full = !brief && (complete || !r.isInHistory()); 2709 if (needNL) { 2710 pw.println(""); 2711 needNL = false; 2712 } 2713 if (header1 != null) { 2714 pw.println(header1); 2715 header1 = null; 2716 } 2717 if (header2 != null) { 2718 pw.println(header2); 2719 header2 = null; 2720 } 2721 if (lastTask != r.task) { 2722 lastTask = r.task; 2723 pw.print(prefix); 2724 pw.print(full ? "* " : " "); 2725 pw.println(lastTask); 2726 if (full) { 2727 lastTask.dump(pw, prefix + " "); 2728 } else if (complete) { 2729 // Complete + brief == give a summary. Isn't that obvious?!? 2730 if (lastTask.intent != null) { 2731 pw.print(prefix); pw.print(" "); 2732 pw.println(lastTask.intent.toInsecureStringWithClip()); 2733 } 2734 } 2735 } 2736 pw.print(prefix); pw.print(full ? " * " : " "); pw.print(label); 2737 pw.print(" #"); pw.print(i); pw.print(": "); 2738 pw.println(r); 2739 if (full) { 2740 r.dump(pw, innerPrefix); 2741 } else if (complete) { 2742 // Complete + brief == give a summary. Isn't that obvious?!? 2743 pw.print(innerPrefix); pw.println(r.intent.toInsecureString()); 2744 if (r.app != null) { 2745 pw.print(innerPrefix); pw.println(r.app); 2746 } 2747 } 2748 if (client && r.app != null && r.app.thread != null) { 2749 // flush anything that is already in the PrintWriter since the thread is going 2750 // to write to the file descriptor directly 2751 pw.flush(); 2752 try { 2753 TransferPipe tp = new TransferPipe(); 2754 try { 2755 r.app.thread.dumpActivity(tp.getWriteFd().getFileDescriptor(), 2756 r.appToken, innerPrefix, args); 2757 // Short timeout, since blocking here can 2758 // deadlock with the application. 2759 tp.go(fd, 2000); 2760 } finally { 2761 tp.kill(); 2762 } 2763 } catch (IOException e) { 2764 pw.println(innerPrefix + "Failure while dumping the activity: " + e); 2765 } catch (RemoteException e) { 2766 pw.println(innerPrefix + "Got a RemoteException while dumping the activity"); 2767 } 2768 needNL = true; 2769 } 2770 } 2771 return printed; 2772 } 2773 2774 void scheduleIdleTimeoutLocked(ActivityRecord next) { 2775 if (DEBUG_IDLE) Slog.d(TAG, "scheduleIdleTimeoutLocked: Callers=" + Debug.getCallers(4)); 2776 Message msg = mHandler.obtainMessage(IDLE_TIMEOUT_MSG, next); 2777 mHandler.sendMessageDelayed(msg, IDLE_TIMEOUT); 2778 } 2779 2780 final void scheduleIdleLocked() { 2781 mHandler.sendEmptyMessage(IDLE_NOW_MSG); 2782 } 2783 2784 void removeTimeoutsForActivityLocked(ActivityRecord r) { 2785 if (DEBUG_IDLE) Slog.d(TAG, "removeTimeoutsForActivity: Callers=" + Debug.getCallers(4)); 2786 mHandler.removeMessages(IDLE_TIMEOUT_MSG, r); 2787 } 2788 2789 final void scheduleResumeTopActivities() { 2790 if (!mHandler.hasMessages(RESUME_TOP_ACTIVITY_MSG)) { 2791 mHandler.sendEmptyMessage(RESUME_TOP_ACTIVITY_MSG); 2792 } 2793 } 2794 2795 void removeSleepTimeouts() { 2796 mSleepTimeout = false; 2797 mHandler.removeMessages(SLEEP_TIMEOUT_MSG); 2798 } 2799 2800 final void scheduleSleepTimeout() { 2801 removeSleepTimeouts(); 2802 mHandler.sendEmptyMessageDelayed(SLEEP_TIMEOUT_MSG, SLEEP_TIMEOUT); 2803 } 2804 2805 @Override 2806 public void onDisplayAdded(int displayId) { 2807 mHandler.sendMessage(mHandler.obtainMessage(HANDLE_DISPLAY_ADDED, displayId, 0)); 2808 } 2809 2810 @Override 2811 public void onDisplayRemoved(int displayId) { 2812 mHandler.sendMessage(mHandler.obtainMessage(HANDLE_DISPLAY_REMOVED, displayId, 0)); 2813 } 2814 2815 @Override 2816 public void onDisplayChanged(int displayId) { 2817 mHandler.sendMessage(mHandler.obtainMessage(HANDLE_DISPLAY_CHANGED, displayId, 0)); 2818 } 2819 2820 public void handleDisplayAddedLocked(int displayId) { 2821 boolean newDisplay; 2822 synchronized (mService) { 2823 newDisplay = mActivityDisplays.get(displayId) == null; 2824 if (newDisplay) { 2825 ActivityDisplay activityDisplay = new ActivityDisplay(displayId); 2826 mActivityDisplays.put(displayId, activityDisplay); 2827 } 2828 } 2829 if (newDisplay) { 2830 mWindowManager.onDisplayAdded(displayId); 2831 } 2832 } 2833 2834 public void handleDisplayRemovedLocked(int displayId) { 2835 synchronized (mService) { 2836 ActivityDisplay activityDisplay = mActivityDisplays.get(displayId); 2837 if (activityDisplay != null) { 2838 ArrayList<ActivityStack> stacks = activityDisplay.mStacks; 2839 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2840 stacks.get(stackNdx).mActivityContainer.detachLocked(); 2841 } 2842 mActivityDisplays.remove(displayId); 2843 } 2844 } 2845 mWindowManager.onDisplayRemoved(displayId); 2846 } 2847 2848 public void handleDisplayChangedLocked(int displayId) { 2849 synchronized (mService) { 2850 ActivityDisplay activityDisplay = mActivityDisplays.get(displayId); 2851 if (activityDisplay != null) { 2852 // TODO: Update the bounds. 2853 } 2854 } 2855 mWindowManager.onDisplayChanged(displayId); 2856 } 2857 2858 StackInfo getStackInfo(ActivityStack stack) { 2859 StackInfo info = new StackInfo(); 2860 mWindowManager.getStackBounds(stack.mStackId, info.bounds); 2861 info.displayId = Display.DEFAULT_DISPLAY; 2862 info.stackId = stack.mStackId; 2863 2864 ArrayList<TaskRecord> tasks = stack.getAllTasks(); 2865 final int numTasks = tasks.size(); 2866 int[] taskIds = new int[numTasks]; 2867 String[] taskNames = new String[numTasks]; 2868 for (int i = 0; i < numTasks; ++i) { 2869 final TaskRecord task = tasks.get(i); 2870 taskIds[i] = task.taskId; 2871 taskNames[i] = task.origActivity != null ? task.origActivity.flattenToString() 2872 : task.realActivity != null ? task.realActivity.flattenToString() 2873 : task.getTopActivity() != null ? task.getTopActivity().packageName 2874 : "unknown"; 2875 } 2876 info.taskIds = taskIds; 2877 info.taskNames = taskNames; 2878 return info; 2879 } 2880 2881 StackInfo getStackInfoLocked(int stackId) { 2882 ActivityStack stack = getStack(stackId); 2883 if (stack != null) { 2884 return getStackInfo(stack); 2885 } 2886 return null; 2887 } 2888 2889 ArrayList<StackInfo> getAllStackInfosLocked() { 2890 ArrayList<StackInfo> list = new ArrayList<StackInfo>(); 2891 for (int displayNdx = 0; displayNdx < mActivityDisplays.size(); ++displayNdx) { 2892 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2893 for (int ndx = stacks.size() - 1; ndx >= 0; --ndx) { 2894 list.add(getStackInfo(stacks.get(ndx))); 2895 } 2896 } 2897 return list; 2898 } 2899 2900 void setLockTaskModeLocked(TaskRecord task) { 2901 if (task == null) { 2902 // Take out of lock task mode. 2903 mLockTaskModeTask = null; 2904 return; 2905 } 2906 if (isLockTaskModeViolation(task)) { 2907 Slog.e(TAG, "setLockTaskMode: Attempt to start a second Lock Task Mode task."); 2908 return; 2909 } 2910 mLockTaskModeTask = task; 2911 findTaskToMoveToFrontLocked(task, 0, null); 2912 resumeTopActivitiesLocked(); 2913 } 2914 2915 boolean isLockTaskModeViolation(TaskRecord task) { 2916 return mLockTaskModeTask != null && mLockTaskModeTask != task; 2917 } 2918 2919 void endLockTaskModeIfTaskEnding(TaskRecord task) { 2920 if (mLockTaskModeTask != null && mLockTaskModeTask == task) { 2921 mLockTaskModeTask = null; 2922 } 2923 } 2924 2925 boolean isInLockTaskMode() { 2926 return mLockTaskModeTask != null; 2927 } 2928 2929 private final class ActivityStackSupervisorHandler extends Handler { 2930 2931 public ActivityStackSupervisorHandler(Looper looper) { 2932 super(looper); 2933 } 2934 2935 void activityIdleInternal(ActivityRecord r) { 2936 synchronized (mService) { 2937 activityIdleInternalLocked(r != null ? r.appToken : null, true, null); 2938 } 2939 } 2940 2941 @Override 2942 public void handleMessage(Message msg) { 2943 switch (msg.what) { 2944 case IDLE_TIMEOUT_MSG: { 2945 if (DEBUG_IDLE) Slog.d(TAG, "handleMessage: IDLE_TIMEOUT_MSG: r=" + msg.obj); 2946 if (mService.mDidDexOpt) { 2947 mService.mDidDexOpt = false; 2948 Message nmsg = mHandler.obtainMessage(IDLE_TIMEOUT_MSG); 2949 nmsg.obj = msg.obj; 2950 mHandler.sendMessageDelayed(nmsg, IDLE_TIMEOUT); 2951 return; 2952 } 2953 // We don't at this point know if the activity is fullscreen, 2954 // so we need to be conservative and assume it isn't. 2955 activityIdleInternal((ActivityRecord)msg.obj); 2956 } break; 2957 case IDLE_NOW_MSG: { 2958 if (DEBUG_IDLE) Slog.d(TAG, "handleMessage: IDLE_NOW_MSG: r=" + msg.obj); 2959 activityIdleInternal((ActivityRecord)msg.obj); 2960 } break; 2961 case RESUME_TOP_ACTIVITY_MSG: { 2962 synchronized (mService) { 2963 resumeTopActivitiesLocked(); 2964 } 2965 } break; 2966 case SLEEP_TIMEOUT_MSG: { 2967 synchronized (mService) { 2968 if (mService.isSleepingOrShuttingDown()) { 2969 Slog.w(TAG, "Sleep timeout! Sleeping now."); 2970 mSleepTimeout = true; 2971 checkReadyForSleepLocked(); 2972 } 2973 } 2974 } break; 2975 case LAUNCH_TIMEOUT_MSG: { 2976 if (mService.mDidDexOpt) { 2977 mService.mDidDexOpt = false; 2978 mHandler.sendEmptyMessageDelayed(LAUNCH_TIMEOUT_MSG, LAUNCH_TIMEOUT); 2979 return; 2980 } 2981 synchronized (mService) { 2982 if (mLaunchingActivity.isHeld()) { 2983 Slog.w(TAG, "Launch timeout has expired, giving up wake lock!"); 2984 if (VALIDATE_WAKE_LOCK_CALLER 2985 && Binder.getCallingUid() != Process.myUid()) { 2986 throw new IllegalStateException("Calling must be system uid"); 2987 } 2988 mLaunchingActivity.release(); 2989 } 2990 } 2991 } break; 2992 case HANDLE_DISPLAY_ADDED: { 2993 handleDisplayAddedLocked(msg.arg1); 2994 } break; 2995 case HANDLE_DISPLAY_CHANGED: { 2996 handleDisplayChangedLocked(msg.arg1); 2997 } break; 2998 case HANDLE_DISPLAY_REMOVED: { 2999 handleDisplayRemovedLocked(msg.arg1); 3000 } break; 3001 case CONTAINER_CALLBACK_VISIBILITY: { 3002 final ActivityContainer container = (ActivityContainer) msg.obj; 3003 try { 3004 // We only send this message if mCallback is non-null. 3005 container.mCallback.setVisible(container.asBinder(), msg.arg1 == 1); 3006 } catch (RemoteException e) { 3007 } 3008 } 3009 } 3010 } 3011 } 3012 3013 class ActivityContainer extends android.app.IActivityContainer.Stub { 3014 final static int FORCE_NEW_TASK_FLAGS = Intent.FLAG_ACTIVITY_NEW_TASK | 3015 Intent.FLAG_ACTIVITY_MULTIPLE_TASK; 3016 final int mStackId; 3017 IActivityContainerCallback mCallback = null; 3018 final ActivityStack mStack; 3019 ActivityRecord mParentActivity = null; 3020 String mIdString; 3021 3022 boolean mVisible = true; 3023 3024 /** Display this ActivityStack is currently on. Null if not attached to a Display. */ 3025 ActivityDisplay mActivityDisplay; 3026 3027 final static int CONTAINER_STATE_HAS_SURFACE = 0; 3028 final static int CONTAINER_STATE_NO_SURFACE = 1; 3029 final static int CONTAINER_STATE_FINISHING = 2; 3030 int mContainerState = CONTAINER_STATE_HAS_SURFACE; 3031 3032 ActivityContainer(int stackId) { 3033 synchronized (mService) { 3034 mStackId = stackId; 3035 mStack = new ActivityStack(this); 3036 mIdString = "ActivtyContainer{" + mStackId + "}"; 3037 if (DEBUG_STACK) Slog.d(TAG, "Creating " + this); 3038 } 3039 } 3040 3041 void attachToDisplayLocked(ActivityDisplay activityDisplay) { 3042 if (DEBUG_STACK) Slog.d(TAG, "attachToDisplayLocked: " + this 3043 + " to display=" + activityDisplay); 3044 mActivityDisplay = activityDisplay; 3045 mStack.mDisplayId = activityDisplay.mDisplayId; 3046 mStack.mStacks = activityDisplay.mStacks; 3047 3048 activityDisplay.attachActivities(mStack); 3049 mWindowManager.attachStack(mStackId, activityDisplay.mDisplayId); 3050 } 3051 3052 @Override 3053 public void attachToDisplay(int displayId) { 3054 synchronized (mService) { 3055 ActivityDisplay activityDisplay = mActivityDisplays.get(displayId); 3056 if (activityDisplay == null) { 3057 return; 3058 } 3059 attachToDisplayLocked(activityDisplay); 3060 } 3061 } 3062 3063 @Override 3064 public int getDisplayId() { 3065 if (mActivityDisplay != null) { 3066 return mActivityDisplay.mDisplayId; 3067 } 3068 return -1; 3069 } 3070 3071 @Override 3072 public boolean injectEvent(InputEvent event) { 3073 final long origId = Binder.clearCallingIdentity(); 3074 try { 3075 if (mActivityDisplay != null) { 3076 return mInputManagerInternal.injectInputEvent(event, 3077 mActivityDisplay.mDisplayId, 3078 InputManager.INJECT_INPUT_EVENT_MODE_ASYNC); 3079 } 3080 return false; 3081 } finally { 3082 Binder.restoreCallingIdentity(origId); 3083 } 3084 } 3085 3086 @Override 3087 public void release() { 3088 mContainerState = CONTAINER_STATE_FINISHING; 3089 mStack.finishAllActivitiesLocked(); 3090 detachLocked(); 3091 mWindowManager.removeStack(mStackId); 3092 } 3093 3094 private void detachLocked() { 3095 if (DEBUG_STACK) Slog.d(TAG, "detachLocked: " + this + " from display=" 3096 + mActivityDisplay + " Callers=" + Debug.getCallers(2)); 3097 if (mActivityDisplay != null) { 3098 mActivityDisplay.detachActivitiesLocked(mStack); 3099 mActivityDisplay = null; 3100 mStack.mDisplayId = -1; 3101 mStack.mStacks = null; 3102 mWindowManager.detachStack(mStackId); 3103 } 3104 } 3105 3106 @Override 3107 public final int startActivity(Intent intent) { 3108 mService.enforceNotIsolatedCaller("ActivityContainer.startActivity"); 3109 int userId = mService.handleIncomingUser(Binder.getCallingPid(), 3110 Binder.getCallingUid(), mCurrentUser, false, true, "ActivityContainer", null); 3111 // TODO: Switch to user app stacks here. 3112 intent.addFlags(FORCE_NEW_TASK_FLAGS); 3113 String mimeType = intent.getType(); 3114 if (mimeType == null && intent.getData() != null 3115 && "content".equals(intent.getData().getScheme())) { 3116 mimeType = mService.getProviderMimeType(intent.getData(), userId); 3117 } 3118 return startActivityMayWait(null, -1, null, intent, mimeType, null, null, null, null, 0, 0, null, 3119 null, null, null, null, userId, this); 3120 } 3121 3122 @Override 3123 public final int startActivityIntentSender(IIntentSender intentSender) { 3124 mService.enforceNotIsolatedCaller("ActivityContainer.startActivityIntentSender"); 3125 3126 if (!(intentSender instanceof PendingIntentRecord)) { 3127 throw new IllegalArgumentException("Bad PendingIntent object"); 3128 } 3129 3130 return ((PendingIntentRecord)intentSender).sendInner(0, null, null, null, null, null, 3131 null, 0, FORCE_NEW_TASK_FLAGS, FORCE_NEW_TASK_FLAGS, null, this); 3132 } 3133 3134 private void checkEmbeddedAllowedInner(Intent intent, String resolvedType) { 3135 int userId = mService.handleIncomingUser(Binder.getCallingPid(), 3136 Binder.getCallingUid(), mCurrentUser, false, true, "ActivityContainer", null); 3137 if (resolvedType == null) { 3138 resolvedType = intent.getType(); 3139 if (resolvedType == null && intent.getData() != null 3140 && "content".equals(intent.getData().getScheme())) { 3141 resolvedType = mService.getProviderMimeType(intent.getData(), userId); 3142 } 3143 } 3144 ActivityInfo aInfo = resolveActivity(intent, resolvedType, 0, null, null, userId); 3145 if (aInfo != null && (aInfo.flags & ActivityInfo.FLAG_ALLOW_EMBEDDED) == 0) { 3146 throw new SecurityException( 3147 "Attempt to embed activity that has not set allowEmbedded=\"true\""); 3148 } 3149 } 3150 3151 /** Throw a SecurityException if allowEmbedded is not true */ 3152 @Override 3153 public final void checkEmbeddedAllowed(Intent intent) { 3154 checkEmbeddedAllowedInner(intent, null); 3155 } 3156 3157 /** Throw a SecurityException if allowEmbedded is not true */ 3158 @Override 3159 public final void checkEmbeddedAllowedIntentSender(IIntentSender intentSender) { 3160 if (!(intentSender instanceof PendingIntentRecord)) { 3161 throw new IllegalArgumentException("Bad PendingIntent object"); 3162 } 3163 PendingIntentRecord pendingIntent = (PendingIntentRecord) intentSender; 3164 checkEmbeddedAllowedInner(pendingIntent.key.requestIntent, 3165 pendingIntent.key.requestResolvedType); 3166 } 3167 3168 @Override 3169 public IBinder asBinder() { 3170 return this; 3171 } 3172 3173 @Override 3174 public void setSurface(Surface surface, int width, int height, int density) { 3175 mService.enforceNotIsolatedCaller("ActivityContainer.attachToSurface"); 3176 } 3177 3178 ActivityStackSupervisor getOuter() { 3179 return ActivityStackSupervisor.this; 3180 } 3181 3182 boolean isAttached() { 3183 return mActivityDisplay != null; 3184 } 3185 3186 void getBounds(Point outBounds) { 3187 if (mActivityDisplay != null) { 3188 mActivityDisplay.getBounds(outBounds); 3189 } else { 3190 outBounds.set(0, 0); 3191 } 3192 } 3193 3194 // TODO: Make sure every change to ActivityRecord.visible results in a call to this. 3195 void setVisible(boolean visible) { 3196 if (mVisible != visible) { 3197 mVisible = visible; 3198 if (mCallback != null) { 3199 mHandler.obtainMessage(CONTAINER_CALLBACK_VISIBILITY, visible ? 1 : 0, 3200 0 /* unused */, this).sendToTarget(); 3201 } 3202 } 3203 } 3204 3205 void setDrawn() { 3206 } 3207 3208 @Override 3209 public String toString() { 3210 return mIdString + (mActivityDisplay == null ? "N" : "A"); 3211 } 3212 } 3213 3214 private class VirtualActivityContainer extends ActivityContainer { 3215 Surface mSurface; 3216 boolean mDrawn = false; 3217 3218 VirtualActivityContainer(ActivityRecord parent, IActivityContainerCallback callback) { 3219 super(getNextStackId()); 3220 mParentActivity = parent; 3221 mCallback = callback; 3222 mContainerState = CONTAINER_STATE_NO_SURFACE; 3223 mIdString = "VirtualActivtyContainer{" + mStackId + ", parent=" + mParentActivity + "}"; 3224 } 3225 3226 @Override 3227 public void setSurface(Surface surface, int width, int height, int density) { 3228 super.setSurface(surface, width, height, density); 3229 3230 synchronized (mService) { 3231 final long origId = Binder.clearCallingIdentity(); 3232 try { 3233 setSurfaceLocked(surface, width, height, density); 3234 } finally { 3235 Binder.restoreCallingIdentity(origId); 3236 } 3237 } 3238 } 3239 3240 private void setSurfaceLocked(Surface surface, int width, int height, int density) { 3241 if (mContainerState == CONTAINER_STATE_FINISHING) { 3242 return; 3243 } 3244 VirtualActivityDisplay virtualActivityDisplay = 3245 (VirtualActivityDisplay) mActivityDisplay; 3246 if (virtualActivityDisplay == null) { 3247 virtualActivityDisplay = 3248 new VirtualActivityDisplay(width, height, density); 3249 mActivityDisplay = virtualActivityDisplay; 3250 mActivityDisplays.put(virtualActivityDisplay.mDisplayId, virtualActivityDisplay); 3251 attachToDisplayLocked(virtualActivityDisplay); 3252 } 3253 3254 if (mSurface != null) { 3255 mSurface.release(); 3256 } 3257 3258 mSurface = surface; 3259 if (surface != null) { 3260 mStack.resumeTopActivityLocked(null); 3261 } else { 3262 mContainerState = CONTAINER_STATE_NO_SURFACE; 3263 ((VirtualActivityDisplay) mActivityDisplay).setSurface(null); 3264 if (mStack.mPausingActivity == null && mStack.mResumedActivity != null) { 3265 mStack.startPausingLocked(false, true); 3266 } 3267 } 3268 3269 setSurfaceIfReady(); 3270 3271 if (DEBUG_STACK) Slog.d(TAG, "setSurface: " + this + " to display=" 3272 + virtualActivityDisplay); 3273 } 3274 3275 @Override 3276 boolean isAttached() { 3277 return mSurface != null && super.isAttached(); 3278 } 3279 3280 @Override 3281 void setDrawn() { 3282 synchronized (mService) { 3283 mDrawn = true; 3284 setSurfaceIfReady(); 3285 } 3286 } 3287 3288 private void setSurfaceIfReady() { 3289 if (DEBUG_STACK) Slog.v(TAG, "setSurfaceIfReady: mDrawn=" + mDrawn + 3290 " mContainerState=" + mContainerState + " mSurface=" + mSurface); 3291 if (mDrawn && mSurface != null && mContainerState == CONTAINER_STATE_NO_SURFACE) { 3292 ((VirtualActivityDisplay) mActivityDisplay).setSurface(mSurface); 3293 mContainerState = CONTAINER_STATE_HAS_SURFACE; 3294 } 3295 } 3296 } 3297 3298 /** Exactly one of these classes per Display in the system. Capable of holding zero or more 3299 * attached {@link ActivityStack}s */ 3300 class ActivityDisplay { 3301 /** Actual Display this object tracks. */ 3302 int mDisplayId; 3303 Display mDisplay; 3304 DisplayInfo mDisplayInfo = new DisplayInfo(); 3305 3306 /** All of the stacks on this display. Order matters, topmost stack is in front of all other 3307 * stacks, bottommost behind. Accessed directly by ActivityManager package classes */ 3308 final ArrayList<ActivityStack> mStacks = new ArrayList<ActivityStack>(); 3309 3310 ActivityDisplay() { 3311 } 3312 3313 ActivityDisplay(int displayId) { 3314 init(mDisplayManager.getDisplay(displayId)); 3315 } 3316 3317 void init(Display display) { 3318 mDisplay = display; 3319 mDisplayId = display.getDisplayId(); 3320 mDisplay.getDisplayInfo(mDisplayInfo); 3321 } 3322 3323 void attachActivities(ActivityStack stack) { 3324 if (DEBUG_STACK) Slog.v(TAG, "attachActivities: attaching " + stack + " to displayId=" 3325 + mDisplayId); 3326 mStacks.add(stack); 3327 } 3328 3329 void detachActivitiesLocked(ActivityStack stack) { 3330 if (DEBUG_STACK) Slog.v(TAG, "detachActivitiesLocked: detaching " + stack 3331 + " from displayId=" + mDisplayId); 3332 mStacks.remove(stack); 3333 } 3334 3335 void getBounds(Point bounds) { 3336 mDisplay.getDisplayInfo(mDisplayInfo); 3337 bounds.x = mDisplayInfo.appWidth; 3338 bounds.y = mDisplayInfo.appHeight; 3339 } 3340 3341 @Override 3342 public String toString() { 3343 return "ActivityDisplay={" + mDisplayId + " numStacks=" + mStacks.size() + "}"; 3344 } 3345 } 3346 3347 class VirtualActivityDisplay extends ActivityDisplay { 3348 VirtualDisplay mVirtualDisplay; 3349 3350 VirtualActivityDisplay(int width, int height, int density) { 3351 DisplayManagerGlobal dm = DisplayManagerGlobal.getInstance(); 3352 mVirtualDisplay = dm.createVirtualDisplay(mService.mContext, VIRTUAL_DISPLAY_BASE_NAME, 3353 width, height, density, null, DisplayManager.VIRTUAL_DISPLAY_FLAG_PUBLIC | 3354 DisplayManager.VIRTUAL_DISPLAY_FLAG_OWN_CONTENT_ONLY); 3355 3356 init(mVirtualDisplay.getDisplay()); 3357 3358 mWindowManager.handleDisplayAdded(mDisplayId); 3359 } 3360 3361 void setSurface(Surface surface) { 3362 if (mVirtualDisplay != null) { 3363 mVirtualDisplay.setSurface(surface); 3364 } 3365 } 3366 3367 @Override 3368 void detachActivitiesLocked(ActivityStack stack) { 3369 super.detachActivitiesLocked(stack); 3370 if (mVirtualDisplay != null) { 3371 mVirtualDisplay.release(); 3372 mVirtualDisplay = null; 3373 } 3374 } 3375 3376 @Override 3377 public String toString() { 3378 return "VirtualActivityDisplay={" + mDisplayId + "}"; 3379 } 3380 } 3381} 3382