ActivityStackSupervisor.java revision 38f96e5020b3e82b98fe97b0be363a5ad185860f
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.IThumbnailReceiver; 45import android.app.PendingIntent; 46import android.app.ActivityManager.RunningTaskInfo; 47import android.app.IActivityManager.WaitResult; 48import android.app.ResultInfo; 49import android.content.ComponentName; 50import android.content.Context; 51import android.content.IIntentSender; 52import android.content.Intent; 53import android.content.IntentSender; 54import android.content.pm.ActivityInfo; 55import android.content.pm.ApplicationInfo; 56import android.content.pm.PackageManager; 57import android.content.pm.ResolveInfo; 58import android.content.res.Configuration; 59import android.graphics.Point; 60import android.hardware.display.DisplayManager; 61import android.hardware.display.DisplayManager.DisplayListener; 62import android.hardware.display.DisplayManagerGlobal; 63import android.hardware.display.VirtualDisplay; 64import android.hardware.input.InputManager; 65import android.hardware.input.InputManagerInternal; 66import android.os.Binder; 67import android.os.Bundle; 68import android.os.Debug; 69import android.os.Handler; 70import android.os.IBinder; 71import android.os.Looper; 72import android.os.Message; 73import android.os.ParcelFileDescriptor; 74import android.os.PowerManager; 75import android.os.Process; 76import android.os.RemoteException; 77import android.os.SystemClock; 78import android.os.UserHandle; 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.os.TransferPipe; 90import com.android.server.LocalServices; 91import com.android.server.am.ActivityManagerService.PendingActivityLaunch; 92import com.android.server.am.ActivityStack.ActivityState; 93import com.android.server.wm.WindowManagerService; 94 95import java.io.FileDescriptor; 96import java.io.IOException; 97import java.io.PrintWriter; 98import java.lang.ref.WeakReference; 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; 129 130 private final static String VIRTUAL_DISPLAY_BASE_NAME = "ActivityViewVirtualDisplay"; 131 132 // For debugging to make sure the caller when acquiring/releasing our 133 // wake lock is the system process. 134 static final boolean VALIDATE_WAKE_LOCK_CALLER = false; 135 136 final ActivityManagerService mService; 137 138 final ActivityStackSupervisorHandler mHandler; 139 140 /** Short cut */ 141 WindowManagerService mWindowManager; 142 DisplayManager mDisplayManager; 143 144 /** Dismiss the keyguard after the next activity is displayed? */ 145 boolean mDismissKeyguardOnNextActivity = false; 146 147 /** Identifier counter for all ActivityStacks */ 148 private int mLastStackId = HOME_STACK_ID; 149 150 /** Task identifier that activities are currently being started in. Incremented each time a 151 * new task is created. */ 152 private int mCurTaskId = 0; 153 154 /** The current user */ 155 private int mCurrentUser; 156 157 /** The stack containing the launcher app. Assumed to always be attached to 158 * Display.DEFAULT_DISPLAY. */ 159 private ActivityStack mHomeStack; 160 161 /** The stack currently receiving input or launching the next activity. */ 162 private ActivityStack mFocusedStack; 163 164 /** If this is the same as mFocusedStack then the activity on the top of the focused stack has 165 * been resumed. If stacks are changing position this will hold the old stack until the new 166 * stack becomes resumed after which it will be set to mFocusedStack. */ 167 private ActivityStack mLastFocusedStack; 168 169 /** List of activities that are waiting for a new activity to become visible before completing 170 * whatever operation they are supposed to do. */ 171 final ArrayList<ActivityRecord> mWaitingVisibleActivities = new ArrayList<ActivityRecord>(); 172 173 /** List of processes waiting to find out about the next visible activity. */ 174 final ArrayList<IActivityManager.WaitResult> mWaitingActivityVisible = 175 new ArrayList<IActivityManager.WaitResult>(); 176 177 /** List of processes waiting to find out about the next launched activity. */ 178 final ArrayList<IActivityManager.WaitResult> mWaitingActivityLaunched = 179 new ArrayList<IActivityManager.WaitResult>(); 180 181 /** List of activities that are ready to be stopped, but waiting for the next activity to 182 * settle down before doing so. */ 183 final ArrayList<ActivityRecord> mStoppingActivities = new ArrayList<ActivityRecord>(); 184 185 /** List of activities that are ready to be finished, but waiting for the previous activity to 186 * settle down before doing so. It contains ActivityRecord objects. */ 187 final ArrayList<ActivityRecord> mFinishingActivities = new ArrayList<ActivityRecord>(); 188 189 /** List of activities that are in the process of going to sleep. */ 190 final ArrayList<ActivityRecord> mGoingToSleepActivities = new ArrayList<ActivityRecord>(); 191 192 /** List of ActivityRecord objects that have been finished and must still report back to a 193 * pending thumbnail receiver. */ 194 final ArrayList<ActivityRecord> mCancelledThumbnails = new ArrayList<ActivityRecord>(); 195 196 /** Used on user changes */ 197 final ArrayList<UserStartedState> mStartingUsers = 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<WeakReference<ActivityContainer>> mActivityContainers = 227 new SparseArray<WeakReference<ActivityContainer>>(); 228 229 /** Mapping from displayId to display current state */ 230 private SparseArray<ActivityDisplay> mActivityDisplays = new SparseArray<ActivityDisplay>(); 231 232 InputManagerInternal mInputManagerInternal; 233 234 public ActivityStackSupervisor(ActivityManagerService service) { 235 mService = service; 236 PowerManager pm = (PowerManager)mService.mContext.getSystemService(Context.POWER_SERVICE); 237 mGoingToSleep = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "ActivityManager-Sleep"); 238 mHandler = new ActivityStackSupervisorHandler(mService.mHandler.getLooper()); 239 if (VALIDATE_WAKE_LOCK_CALLER && Binder.getCallingUid() != Process.myUid()) { 240 throw new IllegalStateException("Calling must be system uid"); 241 } 242 mLaunchingActivity = 243 pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "ActivityManager-Launch"); 244 mLaunchingActivity.setReferenceCounted(false); 245 } 246 247 void setWindowManager(WindowManagerService wm) { 248 synchronized (mService) { 249 mWindowManager = wm; 250 251 mDisplayManager = 252 (DisplayManager)mService.mContext.getSystemService(Context.DISPLAY_SERVICE); 253 mDisplayManager.registerDisplayListener(this, null); 254 255 Display[] displays = mDisplayManager.getDisplays(); 256 for (int displayNdx = displays.length - 1; displayNdx >= 0; --displayNdx) { 257 final int displayId = displays[displayNdx].getDisplayId(); 258 ActivityDisplay activityDisplay = new ActivityDisplay(displayId); 259 mActivityDisplays.put(displayId, activityDisplay); 260 } 261 262 createStackOnDisplay(null, HOME_STACK_ID, Display.DEFAULT_DISPLAY); 263 mHomeStack = mFocusedStack = mLastFocusedStack = getStack(HOME_STACK_ID); 264 265 mInputManagerInternal = LocalServices.getService(InputManagerInternal.class); 266 } 267 } 268 269 void dismissKeyguard() { 270 if (ActivityManagerService.DEBUG_LOCKSCREEN) mService.logLockScreen(""); 271 if (mDismissKeyguardOnNextActivity) { 272 mDismissKeyguardOnNextActivity = false; 273 mWindowManager.dismissKeyguard(); 274 } 275 } 276 277 ActivityStack getFocusedStack() { 278 return mFocusedStack; 279 } 280 281 ActivityStack getLastStack() { 282 return mLastFocusedStack; 283 } 284 285 // TODO: Split into two methods isFrontStack for any visible stack and isFrontmostStack for the 286 // top of all visible stacks. 287 boolean isFrontStack(ActivityStack stack) { 288 final ActivityRecord parent = stack.mActivityContainer.mParentActivity; 289 if (parent != null) { 290 stack = parent.task.stack; 291 } 292 ArrayList<ActivityStack> stacks = stack.mStacks; 293 if (stacks != null && !stacks.isEmpty()) { 294 return stack == stacks.get(stacks.size() - 1); 295 } 296 return false; 297 } 298 299 void moveHomeStack(boolean toFront) { 300 ArrayList<ActivityStack> stacks = mHomeStack.mStacks; 301 int topNdx = stacks.size() - 1; 302 if (topNdx <= 0) { 303 return; 304 } 305 ActivityStack topStack = stacks.get(topNdx); 306 final boolean homeInFront = topStack == mHomeStack; 307 if (homeInFront != toFront) { 308 mLastFocusedStack = topStack; 309 stacks.remove(mHomeStack); 310 stacks.add(toFront ? topNdx : 0, mHomeStack); 311 mFocusedStack = stacks.get(topNdx); 312 if (DEBUG_STACK) Slog.d(TAG, "moveHomeTask: topStack old=" + topStack + " new=" 313 + mFocusedStack); 314 } 315 } 316 317 void moveHomeToTop() { 318 moveHomeStack(true); 319 mHomeStack.moveHomeTaskToTop(); 320 } 321 322 boolean resumeHomeActivity(ActivityRecord prev) { 323 moveHomeToTop(); 324 if (prev != null) { 325 prev.task.mOnTopOfHome = false; 326 } 327 ActivityRecord r = mHomeStack.topRunningActivityLocked(null); 328 if (r != null && r.isHomeActivity()) { 329 mService.setFocusedActivityLocked(r); 330 return resumeTopActivitiesLocked(mHomeStack, prev, null); 331 } 332 return mService.startHomeActivityLocked(mCurrentUser); 333 } 334 335 void setDismissKeyguard(boolean dismiss) { 336 if (ActivityManagerService.DEBUG_LOCKSCREEN) mService.logLockScreen(" dismiss=" + dismiss); 337 mDismissKeyguardOnNextActivity = dismiss; 338 } 339 340 TaskRecord anyTaskForIdLocked(int id) { 341 int numDisplays = mActivityDisplays.size(); 342 for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) { 343 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 344 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 345 ActivityStack stack = stacks.get(stackNdx); 346 TaskRecord task = stack.taskForIdLocked(id); 347 if (task != null) { 348 return task; 349 } 350 } 351 } 352 return null; 353 } 354 355 ActivityRecord isInAnyStackLocked(IBinder token) { 356 int numDisplays = mActivityDisplays.size(); 357 for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) { 358 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 359 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 360 final ActivityRecord r = stacks.get(stackNdx).isInStackLocked(token); 361 if (r != null) { 362 return r; 363 } 364 } 365 } 366 return null; 367 } 368 369 int getNextTaskId() { 370 do { 371 mCurTaskId++; 372 if (mCurTaskId <= 0) { 373 mCurTaskId = 1; 374 } 375 } while (anyTaskForIdLocked(mCurTaskId) != null); 376 return mCurTaskId; 377 } 378 379 ActivityRecord resumedAppLocked() { 380 ActivityStack stack = getFocusedStack(); 381 if (stack == null) { 382 return null; 383 } 384 ActivityRecord resumedActivity = stack.mResumedActivity; 385 if (resumedActivity == null || resumedActivity.app == null) { 386 resumedActivity = stack.mPausingActivity; 387 if (resumedActivity == null || resumedActivity.app == null) { 388 resumedActivity = stack.topRunningActivityLocked(null); 389 } 390 } 391 return resumedActivity; 392 } 393 394 boolean attachApplicationLocked(ProcessRecord app) throws Exception { 395 final String processName = app.processName; 396 boolean didSomething = false; 397 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 398 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 399 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 400 final ActivityStack stack = stacks.get(stackNdx); 401 if (!isFrontStack(stack)) { 402 continue; 403 } 404 ActivityRecord hr = stack.topRunningActivityLocked(null); 405 if (hr != null) { 406 if (hr.app == null && app.uid == hr.info.applicationInfo.uid 407 && processName.equals(hr.processName)) { 408 try { 409 if (realStartActivityLocked(hr, app, true, true)) { 410 didSomething = true; 411 } 412 } catch (Exception e) { 413 Slog.w(TAG, "Exception in new application when starting activity " 414 + hr.intent.getComponent().flattenToShortString(), e); 415 throw e; 416 } 417 } 418 } 419 } 420 } 421 if (!didSomething) { 422 ensureActivitiesVisibleLocked(null, 0); 423 } 424 return didSomething; 425 } 426 427 boolean allResumedActivitiesIdle() { 428 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 429 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 430 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 431 final ActivityStack stack = stacks.get(stackNdx); 432 if (!isFrontStack(stack) || stack.numActivities() == 0) { 433 continue; 434 } 435 final ActivityRecord resumedActivity = stack.mResumedActivity; 436 if (resumedActivity == null || !resumedActivity.idle) { 437 if (DEBUG_STATES) Slog.d(TAG, "allResumedActivitiesIdle: stack=" 438 + stack.mStackId + " " + resumedActivity + " not idle"); 439 return false; 440 } 441 } 442 } 443 return true; 444 } 445 446 boolean allResumedActivitiesComplete() { 447 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 448 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 449 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 450 final ActivityStack stack = stacks.get(stackNdx); 451 if (isFrontStack(stack)) { 452 final ActivityRecord r = stack.mResumedActivity; 453 if (r != null && r.state != ActivityState.RESUMED) { 454 return false; 455 } 456 } 457 } 458 } 459 // TODO: Not sure if this should check if all Paused are complete too. 460 if (DEBUG_STACK) Slog.d(TAG, 461 "allResumedActivitiesComplete: mLastFocusedStack changing from=" + 462 mLastFocusedStack + " to=" + mFocusedStack); 463 mLastFocusedStack = mFocusedStack; 464 return true; 465 } 466 467 boolean allResumedActivitiesVisible() { 468 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 469 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 470 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 471 final ActivityStack stack = stacks.get(stackNdx); 472 final ActivityRecord r = stack.mResumedActivity; 473 if (r != null && (!r.nowVisible || r.waitingVisible)) { 474 return false; 475 } 476 } 477 } 478 return true; 479 } 480 481 /** 482 * Pause all activities in either all of the stacks or just the back stacks. 483 * @param userLeaving Passed to pauseActivity() to indicate whether to call onUserLeaving(). 484 * @return true if any activity was paused as a result of this call. 485 */ 486 boolean pauseBackStacks(boolean userLeaving) { 487 boolean someActivityPaused = false; 488 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 489 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 490 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 491 final ActivityStack stack = stacks.get(stackNdx); 492 if (!isFrontStack(stack) && stack.mResumedActivity != null) { 493 if (DEBUG_STATES) Slog.d(TAG, "pauseBackStacks: stack=" + stack + 494 " mResumedActivity=" + stack.mResumedActivity); 495 stack.startPausingLocked(userLeaving, false); 496 someActivityPaused = true; 497 } 498 } 499 } 500 return someActivityPaused; 501 } 502 503 boolean allPausedActivitiesComplete() { 504 boolean pausing = true; 505 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 506 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 507 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 508 final ActivityStack stack = stacks.get(stackNdx); 509 final ActivityRecord r = stack.mPausingActivity; 510 if (r != null && r.state != ActivityState.PAUSED 511 && r.state != ActivityState.STOPPED 512 && r.state != ActivityState.STOPPING) { 513 if (DEBUG_STATES) { 514 Slog.d(TAG, "allPausedActivitiesComplete: r=" + r + " state=" + r.state); 515 pausing = false; 516 } else { 517 return false; 518 } 519 } 520 } 521 } 522 return pausing; 523 } 524 525 void pauseChildStacks(ActivityRecord parent, boolean userLeaving, boolean uiSleeping) { 526 // TODO: Put all stacks in supervisor and iterate through them instead. 527 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 528 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 529 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 530 final ActivityStack stack = stacks.get(stackNdx); 531 if (stack.mResumedActivity != null && 532 stack.mActivityContainer.mParentActivity == parent) { 533 stack.startPausingLocked(userLeaving, uiSleeping); 534 } 535 } 536 } 537 } 538 539 void reportActivityVisibleLocked(ActivityRecord r) { 540 for (int i = mWaitingActivityVisible.size()-1; i >= 0; i--) { 541 WaitResult w = mWaitingActivityVisible.get(i); 542 w.timeout = false; 543 if (r != null) { 544 w.who = new ComponentName(r.info.packageName, r.info.name); 545 } 546 w.totalTime = SystemClock.uptimeMillis() - w.thisTime; 547 w.thisTime = w.totalTime; 548 } 549 mService.notifyAll(); 550 dismissKeyguard(); 551 } 552 553 void reportActivityLaunchedLocked(boolean timeout, ActivityRecord r, 554 long thisTime, long totalTime) { 555 for (int i = mWaitingActivityLaunched.size() - 1; i >= 0; i--) { 556 WaitResult w = mWaitingActivityLaunched.remove(i); 557 w.timeout = timeout; 558 if (r != null) { 559 w.who = new ComponentName(r.info.packageName, r.info.name); 560 } 561 w.thisTime = thisTime; 562 w.totalTime = totalTime; 563 } 564 mService.notifyAll(); 565 } 566 567 ActivityRecord topRunningActivityLocked() { 568 final ActivityStack focusedStack = getFocusedStack(); 569 ActivityRecord r = focusedStack.topRunningActivityLocked(null); 570 if (r != null) { 571 return r; 572 } 573 574 // Return to the home stack. 575 final ArrayList<ActivityStack> stacks = mHomeStack.mStacks; 576 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 577 final ActivityStack stack = stacks.get(stackNdx); 578 if (stack != focusedStack && isFrontStack(stack)) { 579 r = stack.topRunningActivityLocked(null); 580 if (r != null) { 581 return r; 582 } 583 } 584 } 585 return null; 586 } 587 588 ActivityRecord getTasksLocked(int maxNum, IThumbnailReceiver receiver, 589 PendingThumbnailsRecord pending, List<RunningTaskInfo> list) { 590 ActivityRecord r = null; 591 592 // Gather all of the running tasks for each stack into runningTaskLists. 593 ArrayList<ArrayList<RunningTaskInfo>> runningTaskLists = 594 new ArrayList<ArrayList<RunningTaskInfo>>(); 595 final int numDisplays = mActivityDisplays.size(); 596 for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) { 597 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 598 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 599 final ActivityStack stack = stacks.get(stackNdx); 600 ArrayList<RunningTaskInfo> stackTaskList = new ArrayList<RunningTaskInfo>(); 601 runningTaskLists.add(stackTaskList); 602 final ActivityRecord ar = stack.getTasksLocked(receiver, pending, stackTaskList); 603 if (r == null && isFrontStack(stack)) { 604 r = ar; 605 } 606 } 607 } 608 609 // The lists are already sorted from most recent to oldest. Just pull the most recent off 610 // each list and add it to list. Stop when all lists are empty or maxNum reached. 611 while (maxNum > 0) { 612 long mostRecentActiveTime = Long.MIN_VALUE; 613 ArrayList<RunningTaskInfo> selectedStackList = null; 614 final int numTaskLists = runningTaskLists.size(); 615 for (int stackNdx = 0; stackNdx < numTaskLists; ++stackNdx) { 616 ArrayList<RunningTaskInfo> stackTaskList = runningTaskLists.get(stackNdx); 617 if (!stackTaskList.isEmpty()) { 618 final long lastActiveTime = stackTaskList.get(0).lastActiveTime; 619 if (lastActiveTime > mostRecentActiveTime) { 620 mostRecentActiveTime = lastActiveTime; 621 selectedStackList = stackTaskList; 622 } 623 } 624 } 625 if (selectedStackList != null) { 626 list.add(selectedStackList.remove(0)); 627 --maxNum; 628 } else { 629 break; 630 } 631 } 632 633 return r; 634 } 635 636 ActivityInfo resolveActivity(Intent intent, String resolvedType, int startFlags, 637 String profileFile, ParcelFileDescriptor profileFd, int userId) { 638 // Collect information about the target of the Intent. 639 ActivityInfo aInfo; 640 try { 641 ResolveInfo rInfo = 642 AppGlobals.getPackageManager().resolveIntent( 643 intent, resolvedType, 644 PackageManager.MATCH_DEFAULT_ONLY 645 | ActivityManagerService.STOCK_PM_FLAGS, userId); 646 aInfo = rInfo != null ? rInfo.activityInfo : null; 647 } catch (RemoteException e) { 648 aInfo = null; 649 } 650 651 if (aInfo != null) { 652 // Store the found target back into the intent, because now that 653 // we have it we never want to do this again. For example, if the 654 // user navigates back to this point in the history, we should 655 // always restart the exact same activity. 656 intent.setComponent(new ComponentName( 657 aInfo.applicationInfo.packageName, aInfo.name)); 658 659 // Don't debug things in the system process 660 if ((startFlags&ActivityManager.START_FLAG_DEBUG) != 0) { 661 if (!aInfo.processName.equals("system")) { 662 mService.setDebugApp(aInfo.processName, true, false); 663 } 664 } 665 666 if ((startFlags&ActivityManager.START_FLAG_OPENGL_TRACES) != 0) { 667 if (!aInfo.processName.equals("system")) { 668 mService.setOpenGlTraceApp(aInfo.applicationInfo, aInfo.processName); 669 } 670 } 671 672 if (profileFile != null) { 673 if (!aInfo.processName.equals("system")) { 674 mService.setProfileApp(aInfo.applicationInfo, aInfo.processName, 675 profileFile, profileFd, 676 (startFlags&ActivityManager.START_FLAG_AUTO_STOP_PROFILER) != 0); 677 } 678 } 679 } 680 return aInfo; 681 } 682 683 void startHomeActivity(Intent intent, ActivityInfo aInfo) { 684 moveHomeToTop(); 685 startActivityLocked(null, intent, null, aInfo, null, null, 0, 0, 0, null, 0, 686 null, false, null, null); 687 } 688 689 final int startActivityMayWait(IApplicationThread caller, int callingUid, 690 String callingPackage, Intent intent, String resolvedType, IBinder resultTo, 691 String resultWho, int requestCode, int startFlags, String profileFile, 692 ParcelFileDescriptor profileFd, WaitResult outResult, Configuration config, 693 Bundle options, int userId, IActivityContainer iContainer) { 694 // Refuse possible leaked file descriptors 695 if (intent != null && intent.hasFileDescriptors()) { 696 throw new IllegalArgumentException("File descriptors passed in Intent"); 697 } 698 boolean componentSpecified = intent.getComponent() != null; 699 700 // Don't modify the client's object! 701 intent = new Intent(intent); 702 703 // Collect information about the target of the Intent. 704 ActivityInfo aInfo = resolveActivity(intent, resolvedType, startFlags, 705 profileFile, profileFd, userId); 706 707 ActivityContainer container = (ActivityContainer)iContainer; 708 synchronized (mService) { 709 int callingPid; 710 if (callingUid >= 0) { 711 callingPid = -1; 712 } else if (caller == null) { 713 callingPid = Binder.getCallingPid(); 714 callingUid = Binder.getCallingUid(); 715 } else { 716 callingPid = callingUid = -1; 717 } 718 719 final ActivityStack stack; 720 if (container == null || container.mStack.isOnHomeDisplay()) { 721 stack = getFocusedStack(); 722 } else { 723 stack = container.mStack; 724 } 725 stack.mConfigWillChange = config != null 726 && mService.mConfiguration.diff(config) != 0; 727 if (DEBUG_CONFIGURATION) Slog.v(TAG, 728 "Starting activity when config will change = " + stack.mConfigWillChange); 729 730 final long origId = Binder.clearCallingIdentity(); 731 732 if (aInfo != null && 733 (aInfo.applicationInfo.flags&ApplicationInfo.FLAG_CANT_SAVE_STATE) != 0) { 734 // This may be a heavy-weight process! Check to see if we already 735 // have another, different heavy-weight process running. 736 if (aInfo.processName.equals(aInfo.applicationInfo.packageName)) { 737 if (mService.mHeavyWeightProcess != null && 738 (mService.mHeavyWeightProcess.info.uid != aInfo.applicationInfo.uid || 739 !mService.mHeavyWeightProcess.processName.equals(aInfo.processName))) { 740 int realCallingUid = callingUid; 741 if (caller != null) { 742 ProcessRecord callerApp = mService.getRecordForAppLocked(caller); 743 if (callerApp != null) { 744 realCallingUid = callerApp.info.uid; 745 } else { 746 Slog.w(TAG, "Unable to find app for caller " + caller 747 + " (pid=" + callingPid + ") when starting: " 748 + intent.toString()); 749 ActivityOptions.abort(options); 750 return ActivityManager.START_PERMISSION_DENIED; 751 } 752 } 753 754 IIntentSender target = mService.getIntentSenderLocked( 755 ActivityManager.INTENT_SENDER_ACTIVITY, "android", 756 realCallingUid, userId, null, null, 0, new Intent[] { intent }, 757 new String[] { resolvedType }, PendingIntent.FLAG_CANCEL_CURRENT 758 | PendingIntent.FLAG_ONE_SHOT, null); 759 760 Intent newIntent = new Intent(); 761 if (requestCode >= 0) { 762 // Caller is requesting a result. 763 newIntent.putExtra(HeavyWeightSwitcherActivity.KEY_HAS_RESULT, true); 764 } 765 newIntent.putExtra(HeavyWeightSwitcherActivity.KEY_INTENT, 766 new IntentSender(target)); 767 if (mService.mHeavyWeightProcess.activities.size() > 0) { 768 ActivityRecord hist = mService.mHeavyWeightProcess.activities.get(0); 769 newIntent.putExtra(HeavyWeightSwitcherActivity.KEY_CUR_APP, 770 hist.packageName); 771 newIntent.putExtra(HeavyWeightSwitcherActivity.KEY_CUR_TASK, 772 hist.task.taskId); 773 } 774 newIntent.putExtra(HeavyWeightSwitcherActivity.KEY_NEW_APP, 775 aInfo.packageName); 776 newIntent.setFlags(intent.getFlags()); 777 newIntent.setClassName("android", 778 HeavyWeightSwitcherActivity.class.getName()); 779 intent = newIntent; 780 resolvedType = null; 781 caller = null; 782 callingUid = Binder.getCallingUid(); 783 callingPid = Binder.getCallingPid(); 784 componentSpecified = true; 785 try { 786 ResolveInfo rInfo = 787 AppGlobals.getPackageManager().resolveIntent( 788 intent, null, 789 PackageManager.MATCH_DEFAULT_ONLY 790 | ActivityManagerService.STOCK_PM_FLAGS, userId); 791 aInfo = rInfo != null ? rInfo.activityInfo : null; 792 aInfo = mService.getActivityInfoForUser(aInfo, userId); 793 } catch (RemoteException e) { 794 aInfo = null; 795 } 796 } 797 } 798 } 799 800 int res = startActivityLocked(caller, intent, resolvedType, aInfo, resultTo, resultWho, 801 requestCode, callingPid, callingUid, callingPackage, startFlags, options, 802 componentSpecified, null, container); 803 804 if (stack.mConfigWillChange) { 805 // If the caller also wants to switch to a new configuration, 806 // do so now. This allows a clean switch, as we are waiting 807 // for the current activity to pause (so we will not destroy 808 // it), and have not yet started the next activity. 809 mService.enforceCallingPermission(android.Manifest.permission.CHANGE_CONFIGURATION, 810 "updateConfiguration()"); 811 stack.mConfigWillChange = false; 812 if (DEBUG_CONFIGURATION) Slog.v(TAG, 813 "Updating to new configuration after starting activity."); 814 mService.updateConfigurationLocked(config, null, false, false); 815 } 816 817 Binder.restoreCallingIdentity(origId); 818 819 if (outResult != null) { 820 outResult.result = res; 821 if (res == ActivityManager.START_SUCCESS) { 822 mWaitingActivityLaunched.add(outResult); 823 do { 824 try { 825 mService.wait(); 826 } catch (InterruptedException e) { 827 } 828 } while (!outResult.timeout && outResult.who == null); 829 } else if (res == ActivityManager.START_TASK_TO_FRONT) { 830 ActivityRecord r = stack.topRunningActivityLocked(null); 831 if (r.nowVisible) { 832 outResult.timeout = false; 833 outResult.who = new ComponentName(r.info.packageName, r.info.name); 834 outResult.totalTime = 0; 835 outResult.thisTime = 0; 836 } else { 837 outResult.thisTime = SystemClock.uptimeMillis(); 838 mWaitingActivityVisible.add(outResult); 839 do { 840 try { 841 mService.wait(); 842 } catch (InterruptedException e) { 843 } 844 } while (!outResult.timeout && outResult.who == null); 845 } 846 } 847 } 848 849 return res; 850 } 851 } 852 853 final int startActivities(IApplicationThread caller, int callingUid, String callingPackage, 854 Intent[] intents, String[] resolvedTypes, IBinder resultTo, 855 Bundle options, int userId) { 856 if (intents == null) { 857 throw new NullPointerException("intents is null"); 858 } 859 if (resolvedTypes == null) { 860 throw new NullPointerException("resolvedTypes is null"); 861 } 862 if (intents.length != resolvedTypes.length) { 863 throw new IllegalArgumentException("intents are length different than resolvedTypes"); 864 } 865 866 867 int callingPid; 868 if (callingUid >= 0) { 869 callingPid = -1; 870 } else if (caller == null) { 871 callingPid = Binder.getCallingPid(); 872 callingUid = Binder.getCallingUid(); 873 } else { 874 callingPid = callingUid = -1; 875 } 876 final long origId = Binder.clearCallingIdentity(); 877 try { 878 synchronized (mService) { 879 ActivityRecord[] outActivity = new ActivityRecord[1]; 880 for (int i=0; i<intents.length; i++) { 881 Intent intent = intents[i]; 882 if (intent == null) { 883 continue; 884 } 885 886 // Refuse possible leaked file descriptors 887 if (intent != null && intent.hasFileDescriptors()) { 888 throw new IllegalArgumentException("File descriptors passed in Intent"); 889 } 890 891 boolean componentSpecified = intent.getComponent() != null; 892 893 // Don't modify the client's object! 894 intent = new Intent(intent); 895 896 // Collect information about the target of the Intent. 897 ActivityInfo aInfo = resolveActivity(intent, resolvedTypes[i], 898 0, null, null, userId); 899 // TODO: New, check if this is correct 900 aInfo = mService.getActivityInfoForUser(aInfo, userId); 901 902 if (aInfo != null && 903 (aInfo.applicationInfo.flags & ApplicationInfo.FLAG_CANT_SAVE_STATE) 904 != 0) { 905 throw new IllegalArgumentException( 906 "FLAG_CANT_SAVE_STATE not supported here"); 907 } 908 909 Bundle theseOptions; 910 if (options != null && i == intents.length-1) { 911 theseOptions = options; 912 } else { 913 theseOptions = null; 914 } 915 int res = startActivityLocked(caller, intent, resolvedTypes[i], 916 aInfo, resultTo, null, -1, callingPid, callingUid, callingPackage, 917 0, theseOptions, componentSpecified, outActivity, null); 918 if (res < 0) { 919 return res; 920 } 921 922 resultTo = outActivity[0] != null ? outActivity[0].appToken : null; 923 } 924 } 925 } finally { 926 Binder.restoreCallingIdentity(origId); 927 } 928 929 return ActivityManager.START_SUCCESS; 930 } 931 932 final boolean realStartActivityLocked(ActivityRecord r, 933 ProcessRecord app, boolean andResume, boolean checkConfig) 934 throws RemoteException { 935 936 r.startFreezingScreenLocked(app, 0); 937 if (false) Slog.d(TAG, "realStartActivity: setting app visibility true"); 938 mWindowManager.setAppVisibility(r.appToken, true); 939 940 // schedule launch ticks to collect information about slow apps. 941 r.startLaunchTickingLocked(); 942 943 // Have the window manager re-evaluate the orientation of 944 // the screen based on the new activity order. Note that 945 // as a result of this, it can call back into the activity 946 // manager with a new orientation. We don't care about that, 947 // because the activity is not currently running so we are 948 // just restarting it anyway. 949 if (checkConfig) { 950 Configuration config = mWindowManager.updateOrientationFromAppTokens( 951 mService.mConfiguration, 952 r.mayFreezeScreenLocked(app) ? r.appToken : null); 953 mService.updateConfigurationLocked(config, r, false, false); 954 } 955 956 r.app = app; 957 app.waitingToKill = null; 958 r.launchCount++; 959 r.lastLaunchTime = SystemClock.uptimeMillis(); 960 961 if (localLOGV) Slog.v(TAG, "Launching: " + r); 962 963 int idx = app.activities.indexOf(r); 964 if (idx < 0) { 965 app.activities.add(r); 966 } 967 mService.updateLruProcessLocked(app, true, null); 968 mService.updateOomAdjLocked(); 969 970 final ActivityStack stack = r.task.stack; 971 try { 972 if (app.thread == null) { 973 throw new RemoteException(); 974 } 975 List<ResultInfo> results = null; 976 List<Intent> newIntents = null; 977 if (andResume) { 978 results = r.results; 979 newIntents = r.newIntents; 980 } 981 if (DEBUG_SWITCH) Slog.v(TAG, "Launching: " + r 982 + " icicle=" + r.icicle 983 + " with results=" + results + " newIntents=" + newIntents 984 + " andResume=" + andResume); 985 if (andResume) { 986 EventLog.writeEvent(EventLogTags.AM_RESTART_ACTIVITY, 987 r.userId, System.identityHashCode(r), 988 r.task.taskId, r.shortComponentName); 989 } 990 if (r.isHomeActivity() && r.isNotResolverActivity()) { 991 // Home process is the root process of the task. 992 mService.mHomeProcess = r.task.mActivities.get(0).app; 993 } 994 mService.ensurePackageDexOpt(r.intent.getComponent().getPackageName()); 995 r.sleeping = false; 996 r.forceNewConfig = false; 997 mService.showAskCompatModeDialogLocked(r); 998 r.compat = mService.compatibilityInfoForPackageLocked(r.info.applicationInfo); 999 String profileFile = null; 1000 ParcelFileDescriptor profileFd = null; 1001 boolean profileAutoStop = false; 1002 if (mService.mProfileApp != null && mService.mProfileApp.equals(app.processName)) { 1003 if (mService.mProfileProc == null || mService.mProfileProc == app) { 1004 mService.mProfileProc = app; 1005 profileFile = mService.mProfileFile; 1006 profileFd = mService.mProfileFd; 1007 profileAutoStop = mService.mAutoStopProfiler; 1008 } 1009 } 1010 app.hasShownUi = true; 1011 app.pendingUiClean = true; 1012 if (profileFd != null) { 1013 try { 1014 profileFd = profileFd.dup(); 1015 } catch (IOException e) { 1016 if (profileFd != null) { 1017 try { 1018 profileFd.close(); 1019 } catch (IOException o) { 1020 } 1021 profileFd = null; 1022 } 1023 } 1024 } 1025 app.forceProcessStateUpTo(ActivityManager.PROCESS_STATE_TOP); 1026 app.thread.scheduleLaunchActivity(new Intent(r.intent), r.appToken, 1027 System.identityHashCode(r), r.info, 1028 new Configuration(mService.mConfiguration), r.compat, 1029 app.repProcState, r.icicle, results, newIntents, !andResume, 1030 mService.isNextTransitionForward(), profileFile, profileFd, 1031 profileAutoStop); 1032 1033 if ((app.info.flags&ApplicationInfo.FLAG_CANT_SAVE_STATE) != 0) { 1034 // This may be a heavy-weight process! Note that the package 1035 // manager will ensure that only activity can run in the main 1036 // process of the .apk, which is the only thing that will be 1037 // considered heavy-weight. 1038 if (app.processName.equals(app.info.packageName)) { 1039 if (mService.mHeavyWeightProcess != null 1040 && mService.mHeavyWeightProcess != app) { 1041 Slog.w(TAG, "Starting new heavy weight process " + app 1042 + " when already running " 1043 + mService.mHeavyWeightProcess); 1044 } 1045 mService.mHeavyWeightProcess = app; 1046 Message msg = mService.mHandler.obtainMessage( 1047 ActivityManagerService.POST_HEAVY_NOTIFICATION_MSG); 1048 msg.obj = r; 1049 mService.mHandler.sendMessage(msg); 1050 } 1051 } 1052 1053 } catch (RemoteException e) { 1054 if (r.launchFailed) { 1055 // This is the second time we failed -- finish activity 1056 // and give up. 1057 Slog.e(TAG, "Second failure launching " 1058 + r.intent.getComponent().flattenToShortString() 1059 + ", giving up", e); 1060 mService.appDiedLocked(app, app.pid, app.thread); 1061 stack.requestFinishActivityLocked(r.appToken, Activity.RESULT_CANCELED, null, 1062 "2nd-crash", false); 1063 return false; 1064 } 1065 1066 // This is the first time we failed -- restart process and 1067 // retry. 1068 app.activities.remove(r); 1069 throw e; 1070 } 1071 1072 r.launchFailed = false; 1073 if (stack.updateLRUListLocked(r)) { 1074 Slog.w(TAG, "Activity " + r 1075 + " being launched, but already in LRU list"); 1076 } 1077 1078 if (andResume) { 1079 // As part of the process of launching, ActivityThread also performs 1080 // a resume. 1081 stack.minimalResumeActivityLocked(r); 1082 } else { 1083 // This activity is not starting in the resumed state... which 1084 // should look like we asked it to pause+stop (but remain visible), 1085 // and it has done so and reported back the current icicle and 1086 // other state. 1087 if (DEBUG_STATES) Slog.v(TAG, "Moving to STOPPED: " + r 1088 + " (starting in stopped state)"); 1089 r.state = ActivityState.STOPPED; 1090 r.stopped = true; 1091 } 1092 1093 // Launch the new version setup screen if needed. We do this -after- 1094 // launching the initial activity (that is, home), so that it can have 1095 // a chance to initialize itself while in the background, making the 1096 // switch back to it faster and look better. 1097 if (isFrontStack(stack)) { 1098 mService.startSetupActivityLocked(); 1099 } 1100 1101 return true; 1102 } 1103 1104 void startSpecificActivityLocked(ActivityRecord r, 1105 boolean andResume, boolean checkConfig) { 1106 // Is this activity's application already running? 1107 ProcessRecord app = mService.getProcessRecordLocked(r.processName, 1108 r.info.applicationInfo.uid, true); 1109 1110 r.task.stack.setLaunchTime(r); 1111 1112 if (app != null && app.thread != null) { 1113 try { 1114 if ((r.info.flags&ActivityInfo.FLAG_MULTIPROCESS) == 0 1115 || !"android".equals(r.info.packageName)) { 1116 // Don't add this if it is a platform component that is marked 1117 // to run in multiple processes, because this is actually 1118 // part of the framework so doesn't make sense to track as a 1119 // separate apk in the process. 1120 app.addPackage(r.info.packageName, mService.mProcessStats); 1121 } 1122 realStartActivityLocked(r, app, andResume, checkConfig); 1123 return; 1124 } catch (RemoteException e) { 1125 Slog.w(TAG, "Exception when starting activity " 1126 + r.intent.getComponent().flattenToShortString(), e); 1127 } 1128 1129 // If a dead object exception was thrown -- fall through to 1130 // restart the application. 1131 } 1132 1133 mService.startProcessLocked(r.processName, r.info.applicationInfo, true, 0, 1134 "activity", r.intent.getComponent(), false, false, true); 1135 } 1136 1137 final int startActivityLocked(IApplicationThread caller, 1138 Intent intent, String resolvedType, ActivityInfo aInfo, IBinder resultTo, 1139 String resultWho, int requestCode, 1140 int callingPid, int callingUid, String callingPackage, int startFlags, Bundle options, 1141 boolean componentSpecified, ActivityRecord[] outActivity, ActivityContainer container) { 1142 int err = ActivityManager.START_SUCCESS; 1143 1144 ProcessRecord callerApp = null; 1145 if (caller != null) { 1146 callerApp = mService.getRecordForAppLocked(caller); 1147 if (callerApp != null) { 1148 callingPid = callerApp.pid; 1149 callingUid = callerApp.info.uid; 1150 } else { 1151 Slog.w(TAG, "Unable to find app for caller " + caller 1152 + " (pid=" + callingPid + ") when starting: " 1153 + intent.toString()); 1154 err = ActivityManager.START_PERMISSION_DENIED; 1155 } 1156 } 1157 1158 if (err == ActivityManager.START_SUCCESS) { 1159 final int userId = aInfo != null ? UserHandle.getUserId(aInfo.applicationInfo.uid) : 0; 1160 Slog.i(TAG, "START u" + userId + " {" + intent.toShortString(true, true, true, false) 1161 + "} from pid " + (callerApp != null ? callerApp.pid : callingPid) 1162 + " on display " + (container == null ? (mFocusedStack == null ? 1163 Display.DEFAULT_DISPLAY : mFocusedStack.mDisplayId) : 1164 (container.mActivityDisplay == null ? Display.DEFAULT_DISPLAY : 1165 container.mActivityDisplay.mDisplayId))); 1166 } 1167 1168 ActivityRecord sourceRecord = null; 1169 ActivityRecord resultRecord = null; 1170 if (resultTo != null) { 1171 sourceRecord = isInAnyStackLocked(resultTo); 1172 if (DEBUG_RESULTS) Slog.v( 1173 TAG, "Will send result to " + resultTo + " " + sourceRecord); 1174 if (sourceRecord != null) { 1175 if (requestCode >= 0 && !sourceRecord.finishing) { 1176 resultRecord = sourceRecord; 1177 } 1178 } 1179 } 1180 ActivityStack resultStack = resultRecord == null ? null : resultRecord.task.stack; 1181 1182 int launchFlags = intent.getFlags(); 1183 1184 if ((launchFlags&Intent.FLAG_ACTIVITY_FORWARD_RESULT) != 0 1185 && sourceRecord != null) { 1186 // Transfer the result target from the source activity to the new 1187 // one being started, including any failures. 1188 if (requestCode >= 0) { 1189 ActivityOptions.abort(options); 1190 return ActivityManager.START_FORWARD_AND_REQUEST_CONFLICT; 1191 } 1192 resultRecord = sourceRecord.resultTo; 1193 resultWho = sourceRecord.resultWho; 1194 requestCode = sourceRecord.requestCode; 1195 sourceRecord.resultTo = null; 1196 if (resultRecord != null) { 1197 resultRecord.removeResultsLocked( 1198 sourceRecord, resultWho, requestCode); 1199 } 1200 } 1201 1202 if (err == ActivityManager.START_SUCCESS && intent.getComponent() == null) { 1203 // We couldn't find a class that can handle the given Intent. 1204 // That's the end of that! 1205 err = ActivityManager.START_INTENT_NOT_RESOLVED; 1206 } 1207 1208 if (err == ActivityManager.START_SUCCESS && aInfo == null) { 1209 // We couldn't find the specific class specified in the Intent. 1210 // Also the end of the line. 1211 err = ActivityManager.START_CLASS_NOT_FOUND; 1212 } 1213 1214 if (err != ActivityManager.START_SUCCESS) { 1215 if (resultRecord != null) { 1216 resultStack.sendActivityResultLocked(-1, 1217 resultRecord, resultWho, requestCode, 1218 Activity.RESULT_CANCELED, null); 1219 } 1220 setDismissKeyguard(false); 1221 ActivityOptions.abort(options); 1222 return err; 1223 } 1224 1225 final int startAnyPerm = mService.checkPermission( 1226 START_ANY_ACTIVITY, callingPid, callingUid); 1227 final int componentPerm = mService.checkComponentPermission(aInfo.permission, callingPid, 1228 callingUid, aInfo.applicationInfo.uid, aInfo.exported); 1229 if (startAnyPerm != PERMISSION_GRANTED && componentPerm != PERMISSION_GRANTED) { 1230 if (resultRecord != null) { 1231 resultStack.sendActivityResultLocked(-1, 1232 resultRecord, resultWho, requestCode, 1233 Activity.RESULT_CANCELED, null); 1234 } 1235 setDismissKeyguard(false); 1236 String msg; 1237 if (!aInfo.exported) { 1238 msg = "Permission Denial: starting " + intent.toString() 1239 + " from " + callerApp + " (pid=" + callingPid 1240 + ", uid=" + callingUid + ")" 1241 + " not exported from uid " + aInfo.applicationInfo.uid; 1242 } else { 1243 msg = "Permission Denial: starting " + intent.toString() 1244 + " from " + callerApp + " (pid=" + callingPid 1245 + ", uid=" + callingUid + ")" 1246 + " requires " + aInfo.permission; 1247 } 1248 Slog.w(TAG, msg); 1249 throw new SecurityException(msg); 1250 } 1251 1252 boolean abort = !mService.mIntentFirewall.checkStartActivity(intent, callingUid, 1253 callingPid, resolvedType, aInfo.applicationInfo); 1254 1255 if (mService.mController != null) { 1256 try { 1257 // The Intent we give to the watcher has the extra data 1258 // stripped off, since it can contain private information. 1259 Intent watchIntent = intent.cloneFilter(); 1260 abort |= !mService.mController.activityStarting(watchIntent, 1261 aInfo.applicationInfo.packageName); 1262 } catch (RemoteException e) { 1263 mService.mController = null; 1264 } 1265 } 1266 1267 if (abort) { 1268 if (resultRecord != null) { 1269 resultStack.sendActivityResultLocked(-1, resultRecord, resultWho, requestCode, 1270 Activity.RESULT_CANCELED, null); 1271 } 1272 // We pretend to the caller that it was really started, but 1273 // they will just get a cancel result. 1274 setDismissKeyguard(false); 1275 ActivityOptions.abort(options); 1276 return ActivityManager.START_SUCCESS; 1277 } 1278 1279 ActivityRecord r = new ActivityRecord(mService, callerApp, callingUid, callingPackage, 1280 intent, resolvedType, aInfo, mService.mConfiguration, resultRecord, resultWho, 1281 requestCode, componentSpecified, this, container); 1282 if (outActivity != null) { 1283 outActivity[0] = r; 1284 } 1285 1286 final ActivityStack stack = getFocusedStack(); 1287 if (stack.mResumedActivity == null 1288 || stack.mResumedActivity.info.applicationInfo.uid != callingUid) { 1289 if (!mService.checkAppSwitchAllowedLocked(callingPid, callingUid, "Activity start")) { 1290 PendingActivityLaunch pal = 1291 new PendingActivityLaunch(r, sourceRecord, startFlags, stack); 1292 mService.mPendingActivityLaunches.add(pal); 1293 setDismissKeyguard(false); 1294 ActivityOptions.abort(options); 1295 return ActivityManager.START_SWITCHES_CANCELED; 1296 } 1297 } 1298 1299 if (mService.mDidAppSwitch) { 1300 // This is the second allowed switch since we stopped switches, 1301 // so now just generally allow switches. Use case: user presses 1302 // home (switches disabled, switch to home, mDidAppSwitch now true); 1303 // user taps a home icon (coming from home so allowed, we hit here 1304 // and now allow anyone to switch again). 1305 mService.mAppSwitchesAllowedTime = 0; 1306 } else { 1307 mService.mDidAppSwitch = true; 1308 } 1309 1310 mService.doPendingActivityLaunchesLocked(false); 1311 1312 err = startActivityUncheckedLocked(r, sourceRecord, startFlags, true, options); 1313 1314 if (allPausedActivitiesComplete()) { 1315 // If someone asked to have the keyguard dismissed on the next 1316 // activity start, but we are not actually doing an activity 1317 // switch... just dismiss the keyguard now, because we 1318 // probably want to see whatever is behind it. 1319 dismissKeyguard(); 1320 } 1321 return err; 1322 } 1323 1324 ActivityStack adjustStackFocus(ActivityRecord r) { 1325 final TaskRecord task = r.task; 1326 if (r.isApplicationActivity() || (task != null && task.isApplicationTask())) { 1327 if (task != null) { 1328 final ActivityStack taskStack = task.stack; 1329 if (taskStack.isOnHomeDisplay()) { 1330 if (mFocusedStack != taskStack) { 1331 if (DEBUG_FOCUS || DEBUG_STACK) Slog.d(TAG, "adjustStackFocus: Setting " + 1332 "focused stack to r=" + r + " task=" + task); 1333 mFocusedStack = taskStack; 1334 } else { 1335 if (DEBUG_FOCUS || DEBUG_STACK) Slog.d(TAG, 1336 "adjustStackFocus: Focused stack already=" + mFocusedStack); 1337 } 1338 } 1339 return taskStack; 1340 } 1341 1342 final ActivityContainer container = r.mInitialActivityContainer; 1343 if (container != null) { 1344 // The first time put it on the desired stack, after this put on task stack. 1345 r.mInitialActivityContainer = null; 1346 return container.mStack; 1347 } 1348 1349 if (mFocusedStack != mHomeStack) { 1350 if (DEBUG_FOCUS || DEBUG_STACK) Slog.d(TAG, 1351 "adjustStackFocus: Have a focused stack=" + mFocusedStack); 1352 return mFocusedStack; 1353 } 1354 1355 final ArrayList<ActivityStack> homeDisplayStacks = mHomeStack.mStacks; 1356 for (int stackNdx = homeDisplayStacks.size() - 1; stackNdx >= 0; --stackNdx) { 1357 final ActivityStack stack = homeDisplayStacks.get(stackNdx); 1358 if (!stack.isHomeStack()) { 1359 if (DEBUG_FOCUS || DEBUG_STACK) Slog.d(TAG, 1360 "adjustStackFocus: Setting focused stack=" + stack); 1361 mFocusedStack = stack; 1362 return mFocusedStack; 1363 } 1364 } 1365 1366 // Need to create an app stack for this user. 1367 int stackId = createStackOnDisplay(null, getNextStackId(), Display.DEFAULT_DISPLAY); 1368 if (DEBUG_FOCUS || DEBUG_STACK) Slog.d(TAG, "adjustStackFocus: New stack r=" + r + 1369 " stackId=" + stackId); 1370 mFocusedStack = getStack(stackId); 1371 return mFocusedStack; 1372 } 1373 return mHomeStack; 1374 } 1375 1376 void setFocusedStack(ActivityRecord r) { 1377 if (r != null) { 1378 final boolean isHomeActivity = 1379 !r.isApplicationActivity() || (r.task != null && !r.task.isApplicationTask()); 1380 moveHomeStack(isHomeActivity); 1381 } 1382 } 1383 1384 final int startActivityUncheckedLocked(ActivityRecord r, 1385 ActivityRecord sourceRecord, int startFlags, boolean doResume, 1386 Bundle options) { 1387 final Intent intent = r.intent; 1388 final int callingUid = r.launchedFromUid; 1389 1390 int launchFlags = intent.getFlags(); 1391 1392 // We'll invoke onUserLeaving before onPause only if the launching 1393 // activity did not explicitly state that this is an automated launch. 1394 mUserLeaving = (launchFlags&Intent.FLAG_ACTIVITY_NO_USER_ACTION) == 0; 1395 if (DEBUG_USER_LEAVING) Slog.v(TAG, "startActivity() => mUserLeaving=" + mUserLeaving); 1396 1397 // If the caller has asked not to resume at this point, we make note 1398 // of this in the record so that we can skip it when trying to find 1399 // the top running activity. 1400 if (!doResume) { 1401 r.delayedResume = true; 1402 } 1403 1404 ActivityRecord notTop = (launchFlags&Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOP) != 0 ? r : null; 1405 1406 // If the onlyIfNeeded flag is set, then we can do this if the activity 1407 // being launched is the same as the one making the call... or, as 1408 // a special case, if we do not know the caller then we count the 1409 // current top activity as the caller. 1410 if ((startFlags&ActivityManager.START_FLAG_ONLY_IF_NEEDED) != 0) { 1411 ActivityRecord checkedCaller = sourceRecord; 1412 if (checkedCaller == null) { 1413 checkedCaller = getFocusedStack().topRunningNonDelayedActivityLocked(notTop); 1414 } 1415 if (!checkedCaller.realActivity.equals(r.realActivity)) { 1416 // Caller is not the same as launcher, so always needed. 1417 startFlags &= ~ActivityManager.START_FLAG_ONLY_IF_NEEDED; 1418 } 1419 } 1420 1421 if (sourceRecord == null) { 1422 // This activity is not being started from another... in this 1423 // case we -always- start a new task. 1424 if ((launchFlags&Intent.FLAG_ACTIVITY_NEW_TASK) == 0) { 1425 Slog.w(TAG, "startActivity called from non-Activity context; forcing " + 1426 "Intent.FLAG_ACTIVITY_NEW_TASK for: " + intent); 1427 launchFlags |= Intent.FLAG_ACTIVITY_NEW_TASK; 1428 } 1429 } else if (sourceRecord.launchMode == ActivityInfo.LAUNCH_SINGLE_INSTANCE) { 1430 // The original activity who is starting us is running as a single 1431 // instance... this new activity it is starting must go on its 1432 // own task. 1433 launchFlags |= Intent.FLAG_ACTIVITY_NEW_TASK; 1434 } else if (r.launchMode == ActivityInfo.LAUNCH_SINGLE_INSTANCE 1435 || r.launchMode == ActivityInfo.LAUNCH_SINGLE_TASK) { 1436 // The activity being started is a single instance... it always 1437 // gets launched into its own task. 1438 launchFlags |= Intent.FLAG_ACTIVITY_NEW_TASK; 1439 } 1440 1441 ActivityInfo newTaskInfo = null; 1442 Intent newTaskIntent = null; 1443 final ActivityStack sourceStack; 1444 if (sourceRecord != null) { 1445 if (sourceRecord.finishing) { 1446 // If the source is finishing, we can't further count it as our source. This 1447 // is because the task it is associated with may now be empty and on its way out, 1448 // so we don't want to blindly throw it in to that task. Instead we will take 1449 // the NEW_TASK flow and try to find a task for it. But save the task information 1450 // so it can be used when creating the new task. 1451 if ((launchFlags&Intent.FLAG_ACTIVITY_NEW_TASK) == 0) { 1452 Slog.w(TAG, "startActivity called from finishing " + sourceRecord 1453 + "; forcing " + "Intent.FLAG_ACTIVITY_NEW_TASK for: " + intent); 1454 launchFlags |= Intent.FLAG_ACTIVITY_NEW_TASK; 1455 newTaskInfo = sourceRecord.info; 1456 newTaskIntent = sourceRecord.task.intent; 1457 } 1458 sourceRecord = null; 1459 sourceStack = null; 1460 } else { 1461 sourceStack = sourceRecord.task.stack; 1462 } 1463 } else { 1464 sourceStack = null; 1465 } 1466 1467 if (r.resultTo != null && (launchFlags&Intent.FLAG_ACTIVITY_NEW_TASK) != 0) { 1468 // For whatever reason this activity is being launched into a new 1469 // task... yet the caller has requested a result back. Well, that 1470 // is pretty messed up, so instead immediately send back a cancel 1471 // and let the new task continue launched as normal without a 1472 // dependency on its originator. 1473 Slog.w(TAG, "Activity is launching as a new task, so cancelling activity result."); 1474 r.resultTo.task.stack.sendActivityResultLocked(-1, 1475 r.resultTo, r.resultWho, r.requestCode, 1476 Activity.RESULT_CANCELED, null); 1477 r.resultTo = null; 1478 } 1479 1480 boolean addingToTask = false; 1481 boolean movedHome = false; 1482 TaskRecord reuseTask = null; 1483 ActivityStack targetStack; 1484 if (((launchFlags&Intent.FLAG_ACTIVITY_NEW_TASK) != 0 && 1485 (launchFlags&Intent.FLAG_ACTIVITY_MULTIPLE_TASK) == 0) 1486 || r.launchMode == ActivityInfo.LAUNCH_SINGLE_TASK 1487 || r.launchMode == ActivityInfo.LAUNCH_SINGLE_INSTANCE) { 1488 // If bring to front is requested, and no result is requested, and 1489 // we can find a task that was started with this same 1490 // component, then instead of launching bring that one to the front. 1491 if (r.resultTo == null) { 1492 // See if there is a task to bring to the front. If this is 1493 // a SINGLE_INSTANCE activity, there can be one and only one 1494 // instance of it in the history, and it is always in its own 1495 // unique task, so we do a special search. 1496 ActivityRecord intentActivity = r.launchMode != ActivityInfo.LAUNCH_SINGLE_INSTANCE 1497 ? findTaskLocked(r) 1498 : findActivityLocked(intent, r.info); 1499 if (intentActivity != null) { 1500 if (r.task == null) { 1501 r.task = intentActivity.task; 1502 } 1503 targetStack = intentActivity.task.stack; 1504 targetStack.mLastPausedActivity = null; 1505 if (DEBUG_TASKS) Slog.d(TAG, "Bring to front target: " + targetStack 1506 + " from " + intentActivity); 1507 targetStack.moveToFront(); 1508 if (intentActivity.task.intent == null) { 1509 // This task was started because of movement of 1510 // the activity based on affinity... now that we 1511 // are actually launching it, we can assign the 1512 // base intent. 1513 intentActivity.task.setIntent(intent, r.info); 1514 } 1515 // If the target task is not in the front, then we need 1516 // to bring it to the front... except... well, with 1517 // SINGLE_TASK_LAUNCH it's not entirely clear. We'd like 1518 // to have the same behavior as if a new instance was 1519 // being started, which means not bringing it to the front 1520 // if the caller is not itself in the front. 1521 final ActivityStack lastStack = getLastStack(); 1522 ActivityRecord curTop = lastStack == null? 1523 null : lastStack.topRunningNonDelayedActivityLocked(notTop); 1524 if (curTop != null && (curTop.task != intentActivity.task || 1525 curTop.task != lastStack.topTask())) { 1526 r.intent.addFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT); 1527 if (sourceRecord == null || (sourceStack.topActivity() != null && 1528 sourceStack.topActivity().task == sourceRecord.task)) { 1529 // We really do want to push this one into the 1530 // user's face, right now. 1531 movedHome = true; 1532 targetStack.moveTaskToFrontLocked(intentActivity.task, r, options); 1533 if ((launchFlags & 1534 (FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_TASK_ON_HOME)) 1535 == (FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_TASK_ON_HOME)) { 1536 // Caller wants to appear on home activity. 1537 intentActivity.task.mOnTopOfHome = true; 1538 } 1539 options = null; 1540 } 1541 } 1542 // If the caller has requested that the target task be 1543 // reset, then do so. 1544 if ((launchFlags&Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED) != 0) { 1545 intentActivity = targetStack.resetTaskIfNeededLocked(intentActivity, r); 1546 } 1547 if ((startFlags&ActivityManager.START_FLAG_ONLY_IF_NEEDED) != 0) { 1548 // We don't need to start a new activity, and 1549 // the client said not to do anything if that 1550 // is the case, so this is it! And for paranoia, make 1551 // sure we have correctly resumed the top activity. 1552 if (doResume) { 1553 resumeTopActivitiesLocked(targetStack, null, options); 1554 } else { 1555 ActivityOptions.abort(options); 1556 } 1557 return ActivityManager.START_RETURN_INTENT_TO_CALLER; 1558 } 1559 if ((launchFlags & 1560 (Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TASK)) 1561 == (Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TASK)) { 1562 // The caller has requested to completely replace any 1563 // existing task with its new activity. Well that should 1564 // not be too hard... 1565 reuseTask = intentActivity.task; 1566 reuseTask.performClearTaskLocked(); 1567 reuseTask.setIntent(r.intent, r.info); 1568 } else if ((launchFlags&Intent.FLAG_ACTIVITY_CLEAR_TOP) != 0 1569 || r.launchMode == ActivityInfo.LAUNCH_SINGLE_TASK 1570 || r.launchMode == ActivityInfo.LAUNCH_SINGLE_INSTANCE) { 1571 // In this situation we want to remove all activities 1572 // from the task up to the one being started. In most 1573 // cases this means we are resetting the task to its 1574 // initial state. 1575 ActivityRecord top = 1576 intentActivity.task.performClearTaskLocked(r, launchFlags); 1577 if (top != null) { 1578 if (top.frontOfTask) { 1579 // Activity aliases may mean we use different 1580 // intents for the top activity, so make sure 1581 // the task now has the identity of the new 1582 // intent. 1583 top.task.setIntent(r.intent, r.info); 1584 } 1585 ActivityStack.logStartActivity(EventLogTags.AM_NEW_INTENT, 1586 r, top.task); 1587 top.deliverNewIntentLocked(callingUid, r.intent); 1588 } else { 1589 // A special case: we need to 1590 // start the activity because it is not currently 1591 // running, and the caller has asked to clear the 1592 // current task to have this activity at the top. 1593 addingToTask = true; 1594 // Now pretend like this activity is being started 1595 // by the top of its task, so it is put in the 1596 // right place. 1597 sourceRecord = intentActivity; 1598 } 1599 } else if (r.realActivity.equals(intentActivity.task.realActivity)) { 1600 // In this case the top activity on the task is the 1601 // same as the one being launched, so we take that 1602 // as a request to bring the task to the foreground. 1603 // If the top activity in the task is the root 1604 // activity, deliver this new intent to it if it 1605 // desires. 1606 if (((launchFlags&Intent.FLAG_ACTIVITY_SINGLE_TOP) != 0 1607 || r.launchMode == ActivityInfo.LAUNCH_SINGLE_TOP) 1608 && intentActivity.realActivity.equals(r.realActivity)) { 1609 ActivityStack.logStartActivity(EventLogTags.AM_NEW_INTENT, r, 1610 intentActivity.task); 1611 if (intentActivity.frontOfTask) { 1612 intentActivity.task.setIntent(r.intent, r.info); 1613 } 1614 intentActivity.deliverNewIntentLocked(callingUid, r.intent); 1615 } else if (!r.intent.filterEquals(intentActivity.task.intent)) { 1616 // In this case we are launching the root activity 1617 // of the task, but with a different intent. We 1618 // should start a new instance on top. 1619 addingToTask = true; 1620 sourceRecord = intentActivity; 1621 } 1622 } else if ((launchFlags&Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED) == 0) { 1623 // In this case an activity is being launched in to an 1624 // existing task, without resetting that task. This 1625 // is typically the situation of launching an activity 1626 // from a notification or shortcut. We want to place 1627 // the new activity on top of the current task. 1628 addingToTask = true; 1629 sourceRecord = intentActivity; 1630 } else if (!intentActivity.task.rootWasReset) { 1631 // In this case we are launching in to an existing task 1632 // that has not yet been started from its front door. 1633 // The current task has been brought to the front. 1634 // Ideally, we'd probably like to place this new task 1635 // at the bottom of its stack, but that's a little hard 1636 // to do with the current organization of the code so 1637 // for now we'll just drop it. 1638 intentActivity.task.setIntent(r.intent, r.info); 1639 } 1640 if (!addingToTask && reuseTask == null) { 1641 // We didn't do anything... but it was needed (a.k.a., client 1642 // don't use that intent!) And for paranoia, make 1643 // sure we have correctly resumed the top activity. 1644 if (doResume) { 1645 targetStack.resumeTopActivityLocked(null, options); 1646 } else { 1647 ActivityOptions.abort(options); 1648 } 1649 return ActivityManager.START_TASK_TO_FRONT; 1650 } 1651 } 1652 } 1653 } 1654 1655 //String uri = r.intent.toURI(); 1656 //Intent intent2 = new Intent(uri); 1657 //Slog.i(TAG, "Given intent: " + r.intent); 1658 //Slog.i(TAG, "URI is: " + uri); 1659 //Slog.i(TAG, "To intent: " + intent2); 1660 1661 if (r.packageName != null) { 1662 // If the activity being launched is the same as the one currently 1663 // at the top, then we need to check if it should only be launched 1664 // once. 1665 ActivityStack topStack = getFocusedStack(); 1666 ActivityRecord top = topStack.topRunningNonDelayedActivityLocked(notTop); 1667 if (top != null && r.resultTo == null) { 1668 if (top.realActivity.equals(r.realActivity) && top.userId == r.userId) { 1669 if (top.app != null && top.app.thread != null) { 1670 if ((launchFlags&Intent.FLAG_ACTIVITY_SINGLE_TOP) != 0 1671 || r.launchMode == ActivityInfo.LAUNCH_SINGLE_TOP 1672 || r.launchMode == ActivityInfo.LAUNCH_SINGLE_TASK) { 1673 ActivityStack.logStartActivity(EventLogTags.AM_NEW_INTENT, top, 1674 top.task); 1675 // For paranoia, make sure we have correctly 1676 // resumed the top activity. 1677 topStack.mLastPausedActivity = null; 1678 if (doResume) { 1679 resumeTopActivitiesLocked(); 1680 } 1681 ActivityOptions.abort(options); 1682 if ((startFlags&ActivityManager.START_FLAG_ONLY_IF_NEEDED) != 0) { 1683 // We don't need to start a new activity, and 1684 // the client said not to do anything if that 1685 // is the case, so this is it! 1686 return ActivityManager.START_RETURN_INTENT_TO_CALLER; 1687 } 1688 top.deliverNewIntentLocked(callingUid, r.intent); 1689 return ActivityManager.START_DELIVERED_TO_TOP; 1690 } 1691 } 1692 } 1693 } 1694 1695 } else { 1696 if (r.resultTo != null) { 1697 r.resultTo.task.stack.sendActivityResultLocked(-1, r.resultTo, r.resultWho, 1698 r.requestCode, Activity.RESULT_CANCELED, null); 1699 } 1700 ActivityOptions.abort(options); 1701 return ActivityManager.START_CLASS_NOT_FOUND; 1702 } 1703 1704 boolean newTask = false; 1705 boolean keepCurTransition = false; 1706 1707 // Should this be considered a new task? 1708 if (r.resultTo == null && !addingToTask 1709 && (launchFlags&Intent.FLAG_ACTIVITY_NEW_TASK) != 0) { 1710 targetStack = adjustStackFocus(r); 1711 targetStack.moveToFront(); 1712 if (reuseTask == null) { 1713 r.setTask(targetStack.createTaskRecord(getNextTaskId(), 1714 newTaskInfo != null ? newTaskInfo : r.info, 1715 newTaskIntent != null ? newTaskIntent : intent, 1716 true), null, true); 1717 if (DEBUG_TASKS) Slog.v(TAG, "Starting new activity " + r + " in new task " + 1718 r.task); 1719 } else { 1720 r.setTask(reuseTask, reuseTask, true); 1721 } 1722 newTask = true; 1723 if (!movedHome) { 1724 if ((launchFlags & 1725 (Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_TASK_ON_HOME)) 1726 == (Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_TASK_ON_HOME)) { 1727 // Caller wants to appear on home activity, so before starting 1728 // their own activity we will bring home to the front. 1729 r.task.mOnTopOfHome = r.task.stack.isOnHomeDisplay(); 1730 } 1731 } 1732 } else if (sourceRecord != null) { 1733 TaskRecord sourceTask = sourceRecord.task; 1734 targetStack = sourceTask.stack; 1735 targetStack.moveToFront(); 1736 if (!addingToTask && 1737 (launchFlags&Intent.FLAG_ACTIVITY_CLEAR_TOP) != 0) { 1738 // In this case, we are adding the activity to an existing 1739 // task, but the caller has asked to clear that task if the 1740 // activity is already running. 1741 ActivityRecord top = sourceTask.performClearTaskLocked(r, launchFlags); 1742 keepCurTransition = true; 1743 if (top != null) { 1744 ActivityStack.logStartActivity(EventLogTags.AM_NEW_INTENT, r, top.task); 1745 top.deliverNewIntentLocked(callingUid, r.intent); 1746 // For paranoia, make sure we have correctly 1747 // resumed the top activity. 1748 targetStack.mLastPausedActivity = null; 1749 if (doResume) { 1750 targetStack.resumeTopActivityLocked(null); 1751 } 1752 ActivityOptions.abort(options); 1753 return ActivityManager.START_DELIVERED_TO_TOP; 1754 } 1755 } else if (!addingToTask && 1756 (launchFlags&Intent.FLAG_ACTIVITY_REORDER_TO_FRONT) != 0) { 1757 // In this case, we are launching an activity in our own task 1758 // that may already be running somewhere in the history, and 1759 // we want to shuffle it to the front of the stack if so. 1760 final ActivityRecord top = sourceTask.findActivityInHistoryLocked(r); 1761 if (top != null) { 1762 final TaskRecord task = top.task; 1763 task.moveActivityToFrontLocked(top); 1764 ActivityStack.logStartActivity(EventLogTags.AM_NEW_INTENT, r, task); 1765 top.updateOptionsLocked(options); 1766 top.deliverNewIntentLocked(callingUid, r.intent); 1767 targetStack.mLastPausedActivity = null; 1768 if (doResume) { 1769 targetStack.resumeTopActivityLocked(null); 1770 } 1771 return ActivityManager.START_DELIVERED_TO_TOP; 1772 } 1773 } 1774 // An existing activity is starting this new activity, so we want 1775 // to keep the new one in the same task as the one that is starting 1776 // it. 1777 r.setTask(sourceTask, sourceRecord.thumbHolder, false); 1778 if (DEBUG_TASKS) Slog.v(TAG, "Starting new activity " + r 1779 + " in existing task " + r.task + " from source " + sourceRecord); 1780 1781 } else { 1782 // This not being started from an existing activity, and not part 1783 // of a new task... just put it in the top task, though these days 1784 // this case should never happen. 1785 targetStack = adjustStackFocus(r); 1786 targetStack.moveToFront(); 1787 ActivityRecord prev = targetStack.topActivity(); 1788 r.setTask(prev != null ? prev.task 1789 : targetStack.createTaskRecord(getNextTaskId(), r.info, intent, true), 1790 null, true); 1791 if (DEBUG_TASKS) Slog.v(TAG, "Starting new activity " + r 1792 + " in new guessed " + r.task); 1793 } 1794 1795 mService.grantUriPermissionFromIntentLocked(callingUid, r.packageName, 1796 intent, r.getUriPermissionsLocked()); 1797 1798 if (newTask) { 1799 EventLog.writeEvent(EventLogTags.AM_CREATE_TASK, r.userId, r.task.taskId); 1800 } 1801 ActivityStack.logStartActivity(EventLogTags.AM_CREATE_ACTIVITY, r, r.task); 1802 targetStack.mLastPausedActivity = null; 1803 targetStack.startActivityLocked(r, newTask, doResume, keepCurTransition, options); 1804 mService.setFocusedActivityLocked(r); 1805 return ActivityManager.START_SUCCESS; 1806 } 1807 1808 void acquireLaunchWakelock() { 1809 if (VALIDATE_WAKE_LOCK_CALLER && Binder.getCallingUid() != Process.myUid()) { 1810 throw new IllegalStateException("Calling must be system uid"); 1811 } 1812 mLaunchingActivity.acquire(); 1813 if (!mHandler.hasMessages(LAUNCH_TIMEOUT_MSG)) { 1814 // To be safe, don't allow the wake lock to be held for too long. 1815 mHandler.sendEmptyMessageDelayed(LAUNCH_TIMEOUT_MSG, LAUNCH_TIMEOUT); 1816 } 1817 } 1818 1819 // Checked. 1820 final ActivityRecord activityIdleInternalLocked(final IBinder token, boolean fromTimeout, 1821 Configuration config) { 1822 if (localLOGV) Slog.v(TAG, "Activity idle: " + token); 1823 1824 ArrayList<ActivityRecord> stops = null; 1825 ArrayList<ActivityRecord> finishes = null; 1826 ArrayList<UserStartedState> startingUsers = null; 1827 int NS = 0; 1828 int NF = 0; 1829 IApplicationThread sendThumbnail = null; 1830 boolean booting = false; 1831 boolean enableScreen = false; 1832 boolean activityRemoved = false; 1833 1834 ActivityRecord r = ActivityRecord.forToken(token); 1835 if (r != null) { 1836 if (DEBUG_IDLE) Slog.d(TAG, "activityIdleInternalLocked: Callers=" + 1837 Debug.getCallers(4)); 1838 mHandler.removeMessages(IDLE_TIMEOUT_MSG, r); 1839 r.finishLaunchTickingLocked(); 1840 if (fromTimeout) { 1841 reportActivityLaunchedLocked(fromTimeout, r, -1, -1); 1842 } 1843 1844 // This is a hack to semi-deal with a race condition 1845 // in the client where it can be constructed with a 1846 // newer configuration from when we asked it to launch. 1847 // We'll update with whatever configuration it now says 1848 // it used to launch. 1849 if (config != null) { 1850 r.configuration = config; 1851 } 1852 1853 // We are now idle. If someone is waiting for a thumbnail from 1854 // us, we can now deliver. 1855 r.idle = true; 1856 1857 if (r.thumbnailNeeded && r.app != null && r.app.thread != null) { 1858 sendThumbnail = r.app.thread; 1859 r.thumbnailNeeded = false; 1860 } 1861 1862 //Slog.i(TAG, "IDLE: mBooted=" + mBooted + ", fromTimeout=" + fromTimeout); 1863 if (!mService.mBooted && isFrontStack(r.task.stack)) { 1864 mService.mBooted = true; 1865 enableScreen = true; 1866 } 1867 } 1868 1869 if (allResumedActivitiesIdle()) { 1870 if (r != null) { 1871 mService.scheduleAppGcsLocked(); 1872 } 1873 1874 if (mLaunchingActivity.isHeld()) { 1875 mHandler.removeMessages(LAUNCH_TIMEOUT_MSG); 1876 if (VALIDATE_WAKE_LOCK_CALLER && 1877 Binder.getCallingUid() != Process.myUid()) { 1878 throw new IllegalStateException("Calling must be system uid"); 1879 } 1880 mLaunchingActivity.release(); 1881 } 1882 ensureActivitiesVisibleLocked(null, 0); 1883 } 1884 1885 // Atomically retrieve all of the other things to do. 1886 stops = processStoppingActivitiesLocked(true); 1887 NS = stops != null ? stops.size() : 0; 1888 if ((NF=mFinishingActivities.size()) > 0) { 1889 finishes = new ArrayList<ActivityRecord>(mFinishingActivities); 1890 mFinishingActivities.clear(); 1891 } 1892 1893 final ArrayList<ActivityRecord> thumbnails; 1894 final int NT = mCancelledThumbnails.size(); 1895 if (NT > 0) { 1896 thumbnails = new ArrayList<ActivityRecord>(mCancelledThumbnails); 1897 mCancelledThumbnails.clear(); 1898 } else { 1899 thumbnails = null; 1900 } 1901 1902 if (isFrontStack(mHomeStack)) { 1903 booting = mService.mBooting; 1904 mService.mBooting = false; 1905 } 1906 1907 if (mStartingUsers.size() > 0) { 1908 startingUsers = new ArrayList<UserStartedState>(mStartingUsers); 1909 mStartingUsers.clear(); 1910 } 1911 1912 // Perform the following actions from unsynchronized state. 1913 final IApplicationThread thumbnailThread = sendThumbnail; 1914 mHandler.post(new Runnable() { 1915 @Override 1916 public void run() { 1917 if (thumbnailThread != null) { 1918 try { 1919 thumbnailThread.requestThumbnail(token); 1920 } catch (Exception e) { 1921 Slog.w(TAG, "Exception thrown when requesting thumbnail", e); 1922 mService.sendPendingThumbnail(null, token, null, null, true); 1923 } 1924 } 1925 1926 // Report back to any thumbnail receivers. 1927 for (int i = 0; i < NT; i++) { 1928 ActivityRecord r = thumbnails.get(i); 1929 mService.sendPendingThumbnail(r, null, null, null, true); 1930 } 1931 } 1932 }); 1933 1934 // Stop any activities that are scheduled to do so but have been 1935 // waiting for the next one to start. 1936 for (int i = 0; i < NS; i++) { 1937 r = stops.get(i); 1938 final ActivityStack stack = r.task.stack; 1939 if (r.finishing) { 1940 stack.finishCurrentActivityLocked(r, ActivityStack.FINISH_IMMEDIATELY, false); 1941 } else { 1942 stack.stopActivityLocked(r); 1943 } 1944 } 1945 1946 // Finish any activities that are scheduled to do so but have been 1947 // waiting for the next one to start. 1948 for (int i = 0; i < NF; i++) { 1949 r = finishes.get(i); 1950 activityRemoved |= r.task.stack.destroyActivityLocked(r, true, false, "finish-idle"); 1951 } 1952 1953 if (booting) { 1954 mService.finishBooting(); 1955 } else if (startingUsers != null) { 1956 for (int i = 0; i < startingUsers.size(); i++) { 1957 mService.finishUserSwitch(startingUsers.get(i)); 1958 } 1959 } 1960 1961 mService.trimApplications(); 1962 //dump(); 1963 //mWindowManager.dump(); 1964 1965 if (enableScreen) { 1966 mService.enableScreenAfterBoot(); 1967 } 1968 1969 if (activityRemoved) { 1970 resumeTopActivitiesLocked(); 1971 } 1972 1973 return r; 1974 } 1975 1976 boolean handleAppDiedLocked(ProcessRecord app) { 1977 boolean hasVisibleActivities = false; 1978 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 1979 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 1980 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 1981 hasVisibleActivities |= stacks.get(stackNdx).handleAppDiedLocked(app); 1982 } 1983 } 1984 return hasVisibleActivities; 1985 } 1986 1987 void closeSystemDialogsLocked() { 1988 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 1989 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 1990 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 1991 stacks.get(stackNdx).closeSystemDialogsLocked(); 1992 } 1993 } 1994 } 1995 1996 void removeUserLocked(int userId) { 1997 mUserStackInFront.delete(userId); 1998 } 1999 2000 /** 2001 * @return true if some activity was finished (or would have finished if doit were true). 2002 */ 2003 boolean forceStopPackageLocked(String name, boolean doit, boolean evenPersistent, int userId) { 2004 boolean didSomething = false; 2005 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2006 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2007 final int numStacks = stacks.size(); 2008 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 2009 final ActivityStack stack = stacks.get(stackNdx); 2010 if (stack.forceStopPackageLocked(name, doit, evenPersistent, userId)) { 2011 didSomething = true; 2012 } 2013 } 2014 } 2015 return didSomething; 2016 } 2017 2018 void updatePreviousProcessLocked(ActivityRecord r) { 2019 // Now that this process has stopped, we may want to consider 2020 // it to be the previous app to try to keep around in case 2021 // the user wants to return to it. 2022 2023 // First, found out what is currently the foreground app, so that 2024 // we don't blow away the previous app if this activity is being 2025 // hosted by the process that is actually still the foreground. 2026 ProcessRecord fgApp = null; 2027 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2028 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2029 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2030 final ActivityStack stack = stacks.get(stackNdx); 2031 if (isFrontStack(stack)) { 2032 if (stack.mResumedActivity != null) { 2033 fgApp = stack.mResumedActivity.app; 2034 } else if (stack.mPausingActivity != null) { 2035 fgApp = stack.mPausingActivity.app; 2036 } 2037 break; 2038 } 2039 } 2040 } 2041 2042 // Now set this one as the previous process, only if that really 2043 // makes sense to. 2044 if (r.app != null && fgApp != null && r.app != fgApp 2045 && r.lastVisibleTime > mService.mPreviousProcessVisibleTime 2046 && r.app != mService.mHomeProcess) { 2047 mService.mPreviousProcess = r.app; 2048 mService.mPreviousProcessVisibleTime = r.lastVisibleTime; 2049 } 2050 } 2051 2052 boolean resumeTopActivitiesLocked() { 2053 return resumeTopActivitiesLocked(null, null, null); 2054 } 2055 2056 boolean resumeTopActivitiesLocked(ActivityStack targetStack, ActivityRecord target, 2057 Bundle targetOptions) { 2058 if (targetStack == null) { 2059 targetStack = getFocusedStack(); 2060 } 2061 boolean result = false; 2062 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2063 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2064 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2065 final ActivityStack stack = stacks.get(stackNdx); 2066 if (isFrontStack(stack)) { 2067 if (stack == targetStack) { 2068 result = stack.resumeTopActivityLocked(target, targetOptions); 2069 } else { 2070 stack.resumeTopActivityLocked(null); 2071 } 2072 } 2073 } 2074 } 2075 return result; 2076 } 2077 2078 void finishTopRunningActivityLocked(ProcessRecord app) { 2079 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2080 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2081 final int numStacks = stacks.size(); 2082 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 2083 final ActivityStack stack = stacks.get(stackNdx); 2084 stack.finishTopRunningActivityLocked(app); 2085 } 2086 } 2087 } 2088 2089 void findTaskToMoveToFrontLocked(int taskId, int flags, Bundle options) { 2090 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2091 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2092 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2093 if (stacks.get(stackNdx).findTaskToMoveToFrontLocked(taskId, flags, options)) { 2094 if (DEBUG_STACK) Slog.d(TAG, "findTaskToMoveToFront: moved to front of stack=" 2095 + stacks.get(stackNdx)); 2096 return; 2097 } 2098 } 2099 } 2100 } 2101 2102 ActivityStack getStack(int stackId) { 2103 WeakReference<ActivityContainer> weakReference = mActivityContainers.get(stackId); 2104 if (weakReference != null) { 2105 ActivityContainer activityContainer = weakReference.get(); 2106 if (activityContainer != null) { 2107 return activityContainer.mStack; 2108 } else { 2109 mActivityContainers.remove(stackId); 2110 } 2111 } 2112 return null; 2113 } 2114 2115 ArrayList<ActivityStack> getStacks() { 2116 ArrayList<ActivityStack> allStacks = new ArrayList<ActivityStack>(); 2117 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2118 allStacks.addAll(mActivityDisplays.valueAt(displayNdx).mStacks); 2119 } 2120 return allStacks; 2121 } 2122 2123 IBinder getHomeActivityToken() { 2124 final ArrayList<TaskRecord> tasks = mHomeStack.getAllTasks(); 2125 for (int taskNdx = tasks.size() - 1; taskNdx >= 0; --taskNdx) { 2126 final TaskRecord task = tasks.get(taskNdx); 2127 if (task.isHomeTask()) { 2128 final ArrayList<ActivityRecord> activities = task.mActivities; 2129 for (int activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) { 2130 final ActivityRecord r = activities.get(activityNdx); 2131 if (r.isHomeActivity()) { 2132 return r.appToken; 2133 } 2134 } 2135 } 2136 } 2137 return null; 2138 } 2139 2140 ActivityContainer createActivityContainer(ActivityRecord parentActivity, int stackId, 2141 IActivityContainerCallback callback) { 2142 ActivityContainer activityContainer = new ActivityContainer(parentActivity, stackId, 2143 callback); 2144 mActivityContainers.put(stackId, new WeakReference<ActivityContainer>(activityContainer)); 2145 if (parentActivity != null) { 2146 parentActivity.mChildContainers.add(activityContainer.mStack); 2147 } 2148 return activityContainer; 2149 } 2150 2151 ActivityContainer createActivityContainer(ActivityRecord parentActivity, 2152 IActivityContainerCallback callback) { 2153 return createActivityContainer(parentActivity, getNextStackId(), callback); 2154 } 2155 2156 void removeChildActivityContainers(ActivityRecord parentActivity) { 2157 for (int ndx = mActivityContainers.size() - 1; ndx >= 0; --ndx) { 2158 final ActivityContainer container = mActivityContainers.valueAt(ndx).get(); 2159 if (container == null) { 2160 mActivityContainers.removeAt(ndx); 2161 continue; 2162 } 2163 if (container.mParentActivity != parentActivity) { 2164 continue; 2165 } 2166 2167 ActivityStack stack = container.mStack; 2168 ActivityRecord top = stack.topRunningNonDelayedActivityLocked(null); 2169 if (top != null) { 2170 // TODO: Make sure the next activity doesn't start up when top is destroyed. 2171 stack.destroyActivityLocked(top, true, true, "stack removal"); 2172 } 2173 mActivityContainers.removeAt(ndx); 2174 container.detachLocked(); 2175 } 2176 } 2177 2178 private int createStackOnDisplay(ActivityRecord parentActivity, int stackId, int displayId) { 2179 ActivityDisplay activityDisplay = mActivityDisplays.get(displayId); 2180 if (activityDisplay == null) { 2181 return -1; 2182 } 2183 2184 ActivityContainer activityContainer = 2185 createActivityContainer(parentActivity, stackId, null); 2186 activityContainer.attachToDisplayLocked(activityDisplay); 2187 return stackId; 2188 } 2189 2190 int getNextStackId() { 2191 while (true) { 2192 if (++mLastStackId <= HOME_STACK_ID) { 2193 mLastStackId = HOME_STACK_ID + 1; 2194 } 2195 if (getStack(mLastStackId) == null) { 2196 break; 2197 } 2198 } 2199 return mLastStackId; 2200 } 2201 2202 void moveTaskToStack(int taskId, int stackId, boolean toTop) { 2203 final TaskRecord task = anyTaskForIdLocked(taskId); 2204 if (task == null) { 2205 return; 2206 } 2207 final ActivityStack stack = getStack(stackId); 2208 if (stack == null) { 2209 Slog.w(TAG, "moveTaskToStack: no stack for id=" + stackId); 2210 return; 2211 } 2212 task.stack.removeTask(task); 2213 stack.addTask(task, toTop); 2214 mWindowManager.addTask(taskId, stackId, toTop); 2215 resumeTopActivitiesLocked(); 2216 } 2217 2218 ActivityRecord findTaskLocked(ActivityRecord r) { 2219 if (DEBUG_TASKS) Slog.d(TAG, "Looking for task of " + r); 2220 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2221 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2222 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2223 final ActivityStack stack = stacks.get(stackNdx); 2224 if (!r.isApplicationActivity() && !stack.isHomeStack()) { 2225 if (DEBUG_TASKS) Slog.d(TAG, "Skipping stack: " + stack); 2226 continue; 2227 } 2228 final ActivityRecord ar = stack.findTaskLocked(r); 2229 if (ar != null) { 2230 return ar; 2231 } 2232 } 2233 } 2234 if (DEBUG_TASKS) Slog.d(TAG, "No task found"); 2235 return null; 2236 } 2237 2238 ActivityRecord findActivityLocked(Intent intent, ActivityInfo info) { 2239 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2240 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2241 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2242 final ActivityRecord ar = stacks.get(stackNdx).findActivityLocked(intent, info); 2243 if (ar != null) { 2244 return ar; 2245 } 2246 } 2247 } 2248 return null; 2249 } 2250 2251 void goingToSleepLocked() { 2252 scheduleSleepTimeout(); 2253 if (!mGoingToSleep.isHeld()) { 2254 mGoingToSleep.acquire(); 2255 if (mLaunchingActivity.isHeld()) { 2256 if (VALIDATE_WAKE_LOCK_CALLER && Binder.getCallingUid() != Process.myUid()) { 2257 throw new IllegalStateException("Calling must be system uid"); 2258 } 2259 mLaunchingActivity.release(); 2260 mService.mHandler.removeMessages(LAUNCH_TIMEOUT_MSG); 2261 } 2262 } 2263 checkReadyForSleepLocked(); 2264 } 2265 2266 boolean shutdownLocked(int timeout) { 2267 boolean timedout = false; 2268 goingToSleepLocked(); 2269 2270 final long endTime = System.currentTimeMillis() + timeout; 2271 while (true) { 2272 boolean cantShutdown = false; 2273 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2274 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2275 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2276 cantShutdown |= stacks.get(stackNdx).checkReadyForSleepLocked(); 2277 } 2278 } 2279 if (cantShutdown) { 2280 long timeRemaining = endTime - System.currentTimeMillis(); 2281 if (timeRemaining > 0) { 2282 try { 2283 mService.wait(timeRemaining); 2284 } catch (InterruptedException e) { 2285 } 2286 } else { 2287 Slog.w(TAG, "Activity manager shutdown timed out"); 2288 timedout = true; 2289 break; 2290 } 2291 } else { 2292 break; 2293 } 2294 } 2295 2296 // Force checkReadyForSleep to complete. 2297 mSleepTimeout = true; 2298 checkReadyForSleepLocked(); 2299 2300 return timedout; 2301 } 2302 2303 void comeOutOfSleepIfNeededLocked() { 2304 removeSleepTimeouts(); 2305 if (mGoingToSleep.isHeld()) { 2306 mGoingToSleep.release(); 2307 } 2308 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2309 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2310 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2311 final ActivityStack stack = stacks.get(stackNdx); 2312 stack.awakeFromSleepingLocked(); 2313 if (isFrontStack(stack)) { 2314 resumeTopActivitiesLocked(); 2315 } 2316 } 2317 } 2318 mGoingToSleepActivities.clear(); 2319 } 2320 2321 void activitySleptLocked(ActivityRecord r) { 2322 mGoingToSleepActivities.remove(r); 2323 checkReadyForSleepLocked(); 2324 } 2325 2326 void checkReadyForSleepLocked() { 2327 if (!mService.isSleepingOrShuttingDown()) { 2328 // Do not care. 2329 return; 2330 } 2331 2332 if (!mSleepTimeout) { 2333 boolean dontSleep = false; 2334 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2335 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2336 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2337 dontSleep |= stacks.get(stackNdx).checkReadyForSleepLocked(); 2338 } 2339 } 2340 2341 if (mStoppingActivities.size() > 0) { 2342 // Still need to tell some activities to stop; can't sleep yet. 2343 if (DEBUG_PAUSE) Slog.v(TAG, "Sleep still need to stop " 2344 + mStoppingActivities.size() + " activities"); 2345 scheduleIdleLocked(); 2346 dontSleep = true; 2347 } 2348 2349 if (mGoingToSleepActivities.size() > 0) { 2350 // Still need to tell some activities to sleep; can't sleep yet. 2351 if (DEBUG_PAUSE) Slog.v(TAG, "Sleep still need to sleep " 2352 + mGoingToSleepActivities.size() + " activities"); 2353 dontSleep = true; 2354 } 2355 2356 if (dontSleep) { 2357 return; 2358 } 2359 } 2360 2361 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2362 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2363 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2364 stacks.get(stackNdx).goToSleep(); 2365 } 2366 } 2367 2368 removeSleepTimeouts(); 2369 2370 if (mGoingToSleep.isHeld()) { 2371 mGoingToSleep.release(); 2372 } 2373 if (mService.mShuttingDown) { 2374 mService.notifyAll(); 2375 } 2376 } 2377 2378 boolean reportResumedActivityLocked(ActivityRecord r) { 2379 final ActivityStack stack = r.task.stack; 2380 if (isFrontStack(stack)) { 2381 mService.updateUsageStats(r, true); 2382 } 2383 if (allResumedActivitiesComplete()) { 2384 ensureActivitiesVisibleLocked(null, 0); 2385 mWindowManager.executeAppTransition(); 2386 return true; 2387 } 2388 return false; 2389 } 2390 2391 void handleAppCrashLocked(ProcessRecord app) { 2392 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2393 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2394 final int numStacks = stacks.size(); 2395 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 2396 final ActivityStack stack = stacks.get(stackNdx); 2397 stack.handleAppCrashLocked(app); 2398 } 2399 } 2400 } 2401 2402 void ensureActivitiesVisibleLocked(ActivityRecord starting, int configChanges) { 2403 // First the front stacks. In case any are not fullscreen and are in front of home. 2404 boolean showHomeBehindStack = false; 2405 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2406 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2407 final int topStackNdx = stacks.size() - 1; 2408 for (int stackNdx = topStackNdx; stackNdx >= 0; --stackNdx) { 2409 final ActivityStack stack = stacks.get(stackNdx); 2410 if (stackNdx == topStackNdx) { 2411 // Top stack. 2412 showHomeBehindStack = 2413 stack.ensureActivitiesVisibleLocked(starting, configChanges); 2414 } else { 2415 // Back stack. 2416 stack.ensureActivitiesVisibleLocked(starting, configChanges, 2417 showHomeBehindStack); 2418 } 2419 } 2420 } 2421 } 2422 2423 void scheduleDestroyAllActivities(ProcessRecord app, String reason) { 2424 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2425 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2426 final int numStacks = stacks.size(); 2427 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 2428 final ActivityStack stack = stacks.get(stackNdx); 2429 stack.scheduleDestroyActivities(app, false, reason); 2430 } 2431 } 2432 } 2433 2434 boolean switchUserLocked(int userId, UserStartedState uss) { 2435 mUserStackInFront.put(mCurrentUser, getFocusedStack().getStackId()); 2436 final int restoreStackId = mUserStackInFront.get(userId, HOME_STACK_ID); 2437 mCurrentUser = userId; 2438 2439 mStartingUsers.add(uss); 2440 for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { 2441 final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2442 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2443 final ActivityStack stack = stacks.get(stackNdx); 2444 stack.switchUserLocked(userId); 2445 mWindowManager.moveTaskToTop(stack.topTask().taskId); 2446 } 2447 } 2448 2449 ActivityStack stack = getStack(restoreStackId); 2450 if (stack == null) { 2451 stack = mHomeStack; 2452 } 2453 final boolean homeInFront = stack.isHomeStack(); 2454 if (stack.isOnHomeDisplay()) { 2455 moveHomeStack(homeInFront); 2456 mWindowManager.moveTaskToTop(stack.topTask().taskId); 2457 } else { 2458 // Stack was moved to another display while user was swapped out. 2459 resumeHomeActivity(null); 2460 } 2461 return homeInFront; 2462 } 2463 2464 final ArrayList<ActivityRecord> processStoppingActivitiesLocked(boolean remove) { 2465 int N = mStoppingActivities.size(); 2466 if (N <= 0) return null; 2467 2468 ArrayList<ActivityRecord> stops = null; 2469 2470 final boolean nowVisible = allResumedActivitiesVisible(); 2471 for (int i=0; i<N; i++) { 2472 ActivityRecord s = mStoppingActivities.get(i); 2473 if (localLOGV) Slog.v(TAG, "Stopping " + s + ": nowVisible=" 2474 + nowVisible + " waitingVisible=" + s.waitingVisible 2475 + " finishing=" + s.finishing); 2476 if (s.waitingVisible && nowVisible) { 2477 mWaitingVisibleActivities.remove(s); 2478 s.waitingVisible = false; 2479 if (s.finishing) { 2480 // If this activity is finishing, it is sitting on top of 2481 // everyone else but we now know it is no longer needed... 2482 // so get rid of it. Otherwise, we need to go through the 2483 // normal flow and hide it once we determine that it is 2484 // hidden by the activities in front of it. 2485 if (localLOGV) Slog.v(TAG, "Before stopping, can hide: " + s); 2486 mWindowManager.setAppVisibility(s.appToken, false); 2487 } 2488 } 2489 if ((!s.waitingVisible || mService.isSleepingOrShuttingDown()) && remove) { 2490 if (localLOGV) Slog.v(TAG, "Ready to stop: " + s); 2491 if (stops == null) { 2492 stops = new ArrayList<ActivityRecord>(); 2493 } 2494 stops.add(s); 2495 mStoppingActivities.remove(i); 2496 N--; 2497 i--; 2498 } 2499 } 2500 2501 return stops; 2502 } 2503 2504 void validateTopActivitiesLocked() { 2505 // FIXME 2506/* for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2507 final ActivityStack stack = stacks.get(stackNdx); 2508 final ActivityRecord r = stack.topRunningActivityLocked(null); 2509 final ActivityState state = r == null ? ActivityState.DESTROYED : r.state; 2510 if (isFrontStack(stack)) { 2511 if (r == null) { 2512 Slog.e(TAG, "validateTop...: null top activity, stack=" + stack); 2513 } else { 2514 final ActivityRecord pausing = stack.mPausingActivity; 2515 if (pausing != null && pausing == r) { 2516 Slog.e(TAG, "validateTop...: top stack has pausing activity r=" + r + 2517 " state=" + state); 2518 } 2519 if (state != ActivityState.INITIALIZING && state != ActivityState.RESUMED) { 2520 Slog.e(TAG, "validateTop...: activity in front not resumed r=" + r + 2521 " state=" + state); 2522 } 2523 } 2524 } else { 2525 final ActivityRecord resumed = stack.mResumedActivity; 2526 if (resumed != null && resumed == r) { 2527 Slog.e(TAG, "validateTop...: back stack has resumed activity r=" + r + 2528 " state=" + state); 2529 } 2530 if (r != null && (state == ActivityState.INITIALIZING 2531 || state == ActivityState.RESUMED)) { 2532 Slog.e(TAG, "validateTop...: activity in back resumed r=" + r + 2533 " state=" + state); 2534 } 2535 } 2536 } 2537*/ 2538 } 2539 2540 public void dump(PrintWriter pw, String prefix) { 2541 pw.print(prefix); pw.print("mDismissKeyguardOnNextActivity="); 2542 pw.println(mDismissKeyguardOnNextActivity); 2543 pw.print(prefix); pw.print("mFocusedStack=" + mFocusedStack); 2544 pw.print(" mLastFocusedStack="); pw.println(mLastFocusedStack); 2545 pw.print(prefix); pw.println("mSleepTimeout=" + mSleepTimeout); 2546 pw.print(prefix); pw.println("mCurTaskId=" + mCurTaskId); 2547 pw.print(prefix); pw.println("mUserStackInFront=" + mUserStackInFront); 2548 } 2549 2550 ArrayList<ActivityRecord> getDumpActivitiesLocked(String name) { 2551 return getFocusedStack().getDumpActivitiesLocked(name); 2552 } 2553 2554 static boolean printThisActivity(PrintWriter pw, ActivityRecord activity, String dumpPackage, 2555 boolean needSep, String prefix) { 2556 if (activity != null) { 2557 if (dumpPackage == null || dumpPackage.equals(activity.packageName)) { 2558 if (needSep) { 2559 pw.println(); 2560 } 2561 pw.print(prefix); 2562 pw.println(activity); 2563 return true; 2564 } 2565 } 2566 return false; 2567 } 2568 2569 boolean dumpActivitiesLocked(FileDescriptor fd, PrintWriter pw, boolean dumpAll, 2570 boolean dumpClient, String dumpPackage) { 2571 boolean printed = false; 2572 boolean needSep = false; 2573 for (int displayNdx = 0; displayNdx < mActivityDisplays.size(); ++displayNdx) { 2574 ActivityDisplay activityDisplay = mActivityDisplays.valueAt(displayNdx); 2575 pw.print("Display #"); pw.println(activityDisplay.mDisplayId); 2576 ArrayList<ActivityStack> stacks = activityDisplay.mStacks; 2577 final int numStacks = stacks.size(); 2578 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 2579 final ActivityStack stack = stacks.get(stackNdx); 2580 StringBuilder stackHeader = new StringBuilder(128); 2581 stackHeader.append(" Stack #"); 2582 stackHeader.append(stack.mStackId); 2583 stackHeader.append(":"); 2584 printed |= stack.dumpActivitiesLocked(fd, pw, dumpAll, dumpClient, dumpPackage, 2585 needSep, stackHeader.toString()); 2586 printed |= dumpHistoryList(fd, pw, stack.mLRUActivities, " ", "Run", false, 2587 !dumpAll, false, dumpPackage, true, 2588 " Running activities (most recent first):", null); 2589 2590 needSep = printed; 2591 boolean pr = printThisActivity(pw, stack.mPausingActivity, dumpPackage, needSep, 2592 " mPausingActivity: "); 2593 if (pr) { 2594 printed = true; 2595 needSep = false; 2596 } 2597 pr = printThisActivity(pw, stack.mResumedActivity, dumpPackage, needSep, 2598 " mResumedActivity: "); 2599 if (pr) { 2600 printed = true; 2601 needSep = false; 2602 } 2603 if (dumpAll) { 2604 pr = printThisActivity(pw, stack.mLastPausedActivity, dumpPackage, needSep, 2605 " mLastPausedActivity: "); 2606 if (pr) { 2607 printed = true; 2608 needSep = true; 2609 } 2610 printed |= printThisActivity(pw, stack.mLastNoHistoryActivity, dumpPackage, 2611 needSep, " mLastNoHistoryActivity: "); 2612 } 2613 needSep = printed; 2614 } 2615 } 2616 2617 printed |= dumpHistoryList(fd, pw, mFinishingActivities, " ", "Fin", false, !dumpAll, 2618 false, dumpPackage, true, " Activities waiting to finish:", null); 2619 printed |= dumpHistoryList(fd, pw, mStoppingActivities, " ", "Stop", false, !dumpAll, 2620 false, dumpPackage, true, " Activities waiting to stop:", null); 2621 printed |= dumpHistoryList(fd, pw, mWaitingVisibleActivities, " ", "Wait", false, !dumpAll, 2622 false, dumpPackage, true, " Activities waiting for another to become visible:", 2623 null); 2624 printed |= dumpHistoryList(fd, pw, mGoingToSleepActivities, " ", "Sleep", false, !dumpAll, 2625 false, dumpPackage, true, " Activities waiting to sleep:", null); 2626 printed |= dumpHistoryList(fd, pw, mGoingToSleepActivities, " ", "Sleep", false, !dumpAll, 2627 false, dumpPackage, true, " Activities waiting to sleep:", null); 2628 2629 return printed; 2630 } 2631 2632 static boolean dumpHistoryList(FileDescriptor fd, PrintWriter pw, List<ActivityRecord> list, 2633 String prefix, String label, boolean complete, boolean brief, boolean client, 2634 String dumpPackage, boolean needNL, String header1, String header2) { 2635 TaskRecord lastTask = null; 2636 String innerPrefix = null; 2637 String[] args = null; 2638 boolean printed = false; 2639 for (int i=list.size()-1; i>=0; i--) { 2640 final ActivityRecord r = list.get(i); 2641 if (dumpPackage != null && !dumpPackage.equals(r.packageName)) { 2642 continue; 2643 } 2644 if (innerPrefix == null) { 2645 innerPrefix = prefix + " "; 2646 args = new String[0]; 2647 } 2648 printed = true; 2649 final boolean full = !brief && (complete || !r.isInHistory()); 2650 if (needNL) { 2651 pw.println(""); 2652 needNL = false; 2653 } 2654 if (header1 != null) { 2655 pw.println(header1); 2656 header1 = null; 2657 } 2658 if (header2 != null) { 2659 pw.println(header2); 2660 header2 = null; 2661 } 2662 if (lastTask != r.task) { 2663 lastTask = r.task; 2664 pw.print(prefix); 2665 pw.print(full ? "* " : " "); 2666 pw.println(lastTask); 2667 if (full) { 2668 lastTask.dump(pw, prefix + " "); 2669 } else if (complete) { 2670 // Complete + brief == give a summary. Isn't that obvious?!? 2671 if (lastTask.intent != null) { 2672 pw.print(prefix); pw.print(" "); 2673 pw.println(lastTask.intent.toInsecureStringWithClip()); 2674 } 2675 } 2676 } 2677 pw.print(prefix); pw.print(full ? " * " : " "); pw.print(label); 2678 pw.print(" #"); pw.print(i); pw.print(": "); 2679 pw.println(r); 2680 if (full) { 2681 r.dump(pw, innerPrefix); 2682 } else if (complete) { 2683 // Complete + brief == give a summary. Isn't that obvious?!? 2684 pw.print(innerPrefix); pw.println(r.intent.toInsecureString()); 2685 if (r.app != null) { 2686 pw.print(innerPrefix); pw.println(r.app); 2687 } 2688 } 2689 if (client && r.app != null && r.app.thread != null) { 2690 // flush anything that is already in the PrintWriter since the thread is going 2691 // to write to the file descriptor directly 2692 pw.flush(); 2693 try { 2694 TransferPipe tp = new TransferPipe(); 2695 try { 2696 r.app.thread.dumpActivity(tp.getWriteFd().getFileDescriptor(), 2697 r.appToken, innerPrefix, args); 2698 // Short timeout, since blocking here can 2699 // deadlock with the application. 2700 tp.go(fd, 2000); 2701 } finally { 2702 tp.kill(); 2703 } 2704 } catch (IOException e) { 2705 pw.println(innerPrefix + "Failure while dumping the activity: " + e); 2706 } catch (RemoteException e) { 2707 pw.println(innerPrefix + "Got a RemoteException while dumping the activity"); 2708 } 2709 needNL = true; 2710 } 2711 } 2712 return printed; 2713 } 2714 2715 void scheduleIdleTimeoutLocked(ActivityRecord next) { 2716 if (DEBUG_IDLE) Slog.d(TAG, "scheduleIdleTimeoutLocked: Callers=" + Debug.getCallers(4)); 2717 Message msg = mHandler.obtainMessage(IDLE_TIMEOUT_MSG, next); 2718 mHandler.sendMessageDelayed(msg, IDLE_TIMEOUT); 2719 } 2720 2721 final void scheduleIdleLocked() { 2722 mHandler.sendEmptyMessage(IDLE_NOW_MSG); 2723 } 2724 2725 void removeTimeoutsForActivityLocked(ActivityRecord r) { 2726 if (DEBUG_IDLE) Slog.d(TAG, "removeTimeoutsForActivity: Callers=" + Debug.getCallers(4)); 2727 mHandler.removeMessages(IDLE_TIMEOUT_MSG, r); 2728 } 2729 2730 final void scheduleResumeTopActivities() { 2731 if (!mHandler.hasMessages(RESUME_TOP_ACTIVITY_MSG)) { 2732 mHandler.sendEmptyMessage(RESUME_TOP_ACTIVITY_MSG); 2733 } 2734 } 2735 2736 void removeSleepTimeouts() { 2737 mSleepTimeout = false; 2738 mHandler.removeMessages(SLEEP_TIMEOUT_MSG); 2739 } 2740 2741 final void scheduleSleepTimeout() { 2742 removeSleepTimeouts(); 2743 mHandler.sendEmptyMessageDelayed(SLEEP_TIMEOUT_MSG, SLEEP_TIMEOUT); 2744 } 2745 2746 @Override 2747 public void onDisplayAdded(int displayId) { 2748 mHandler.sendMessage(mHandler.obtainMessage(HANDLE_DISPLAY_ADDED, displayId, 0)); 2749 } 2750 2751 @Override 2752 public void onDisplayRemoved(int displayId) { 2753 mHandler.sendMessage(mHandler.obtainMessage(HANDLE_DISPLAY_REMOVED, displayId, 0)); 2754 } 2755 2756 @Override 2757 public void onDisplayChanged(int displayId) { 2758 mHandler.sendMessage(mHandler.obtainMessage(HANDLE_DISPLAY_CHANGED, displayId, 0)); 2759 } 2760 2761 public void handleDisplayAddedLocked(int displayId) { 2762 boolean newDisplay; 2763 synchronized (mService) { 2764 newDisplay = mActivityDisplays.get(displayId) == null; 2765 if (newDisplay) { 2766 ActivityDisplay activityDisplay = new ActivityDisplay(displayId); 2767 mActivityDisplays.put(displayId, activityDisplay); 2768 } 2769 } 2770 if (newDisplay) { 2771 mWindowManager.onDisplayAdded(displayId); 2772 } 2773 } 2774 2775 public void handleDisplayRemovedLocked(int displayId) { 2776 synchronized (mService) { 2777 ActivityDisplay activityDisplay = mActivityDisplays.get(displayId); 2778 if (activityDisplay != null) { 2779 ArrayList<ActivityStack> stacks = activityDisplay.mStacks; 2780 for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { 2781 stacks.get(stackNdx).mActivityContainer.detachLocked(); 2782 } 2783 mActivityDisplays.remove(displayId); 2784 } 2785 } 2786 mWindowManager.onDisplayRemoved(displayId); 2787 } 2788 2789 public void handleDisplayChangedLocked(int displayId) { 2790 synchronized (mService) { 2791 ActivityDisplay activityDisplay = mActivityDisplays.get(displayId); 2792 if (activityDisplay != null) { 2793 // TODO: Update the bounds. 2794 } 2795 } 2796 mWindowManager.onDisplayChanged(displayId); 2797 } 2798 2799 StackInfo getStackInfo(ActivityStack stack) { 2800 StackInfo info = new StackInfo(); 2801 mWindowManager.getStackBounds(stack.mStackId, info.bounds); 2802 info.displayId = Display.DEFAULT_DISPLAY; 2803 info.stackId = stack.mStackId; 2804 2805 ArrayList<TaskRecord> tasks = stack.getAllTasks(); 2806 final int numTasks = tasks.size(); 2807 int[] taskIds = new int[numTasks]; 2808 String[] taskNames = new String[numTasks]; 2809 for (int i = 0; i < numTasks; ++i) { 2810 final TaskRecord task = tasks.get(i); 2811 taskIds[i] = task.taskId; 2812 taskNames[i] = task.origActivity != null ? task.origActivity.flattenToString() 2813 : task.realActivity != null ? task.realActivity.flattenToString() 2814 : task.getTopActivity() != null ? task.getTopActivity().packageName 2815 : "unknown"; 2816 } 2817 info.taskIds = taskIds; 2818 info.taskNames = taskNames; 2819 return info; 2820 } 2821 2822 StackInfo getStackInfoLocked(int stackId) { 2823 ActivityStack stack = getStack(stackId); 2824 if (stack != null) { 2825 return getStackInfo(stack); 2826 } 2827 return null; 2828 } 2829 2830 ArrayList<StackInfo> getAllStackInfosLocked() { 2831 ArrayList<StackInfo> list = new ArrayList<StackInfo>(); 2832 for (int displayNdx = 0; displayNdx < mActivityDisplays.size(); ++displayNdx) { 2833 ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; 2834 for (int ndx = stacks.size() - 1; ndx >= 0; --ndx) { 2835 list.add(getStackInfo(stacks.get(ndx))); 2836 } 2837 } 2838 return list; 2839 } 2840 2841 private final class ActivityStackSupervisorHandler extends Handler { 2842 2843 public ActivityStackSupervisorHandler(Looper looper) { 2844 super(looper); 2845 } 2846 2847 void activityIdleInternal(ActivityRecord r) { 2848 synchronized (mService) { 2849 activityIdleInternalLocked(r != null ? r.appToken : null, true, null); 2850 } 2851 } 2852 2853 @Override 2854 public void handleMessage(Message msg) { 2855 switch (msg.what) { 2856 case IDLE_TIMEOUT_MSG: { 2857 if (DEBUG_IDLE) Slog.d(TAG, "handleMessage: IDLE_TIMEOUT_MSG: r=" + msg.obj); 2858 if (mService.mDidDexOpt) { 2859 mService.mDidDexOpt = false; 2860 Message nmsg = mHandler.obtainMessage(IDLE_TIMEOUT_MSG); 2861 nmsg.obj = msg.obj; 2862 mHandler.sendMessageDelayed(nmsg, IDLE_TIMEOUT); 2863 return; 2864 } 2865 // We don't at this point know if the activity is fullscreen, 2866 // so we need to be conservative and assume it isn't. 2867 activityIdleInternal((ActivityRecord)msg.obj); 2868 } break; 2869 case IDLE_NOW_MSG: { 2870 if (DEBUG_IDLE) Slog.d(TAG, "handleMessage: IDLE_NOW_MSG: r=" + msg.obj); 2871 activityIdleInternal((ActivityRecord)msg.obj); 2872 } break; 2873 case RESUME_TOP_ACTIVITY_MSG: { 2874 synchronized (mService) { 2875 resumeTopActivitiesLocked(); 2876 } 2877 } break; 2878 case SLEEP_TIMEOUT_MSG: { 2879 synchronized (mService) { 2880 if (mService.isSleepingOrShuttingDown()) { 2881 Slog.w(TAG, "Sleep timeout! Sleeping now."); 2882 mSleepTimeout = true; 2883 checkReadyForSleepLocked(); 2884 } 2885 } 2886 } break; 2887 case LAUNCH_TIMEOUT_MSG: { 2888 if (mService.mDidDexOpt) { 2889 mService.mDidDexOpt = false; 2890 mHandler.sendEmptyMessageDelayed(LAUNCH_TIMEOUT_MSG, LAUNCH_TIMEOUT); 2891 return; 2892 } 2893 synchronized (mService) { 2894 if (mLaunchingActivity.isHeld()) { 2895 Slog.w(TAG, "Launch timeout has expired, giving up wake lock!"); 2896 if (VALIDATE_WAKE_LOCK_CALLER 2897 && Binder.getCallingUid() != Process.myUid()) { 2898 throw new IllegalStateException("Calling must be system uid"); 2899 } 2900 mLaunchingActivity.release(); 2901 } 2902 } 2903 } break; 2904 case HANDLE_DISPLAY_ADDED: { 2905 handleDisplayAddedLocked(msg.arg1); 2906 } break; 2907 case HANDLE_DISPLAY_CHANGED: { 2908 handleDisplayChangedLocked(msg.arg1); 2909 } break; 2910 case HANDLE_DISPLAY_REMOVED: { 2911 handleDisplayRemovedLocked(msg.arg1); 2912 } break; 2913 } 2914 } 2915 } 2916 2917 class ActivityContainer extends IActivityContainer.Stub { 2918 final int mStackId; 2919 final IActivityContainerCallback mCallback; 2920 final ActivityStack mStack; 2921 final ActivityRecord mParentActivity; 2922 final String mIdString; 2923 2924 /** Display this ActivityStack is currently on. Null if not attached to a Display. */ 2925 ActivityDisplay mActivityDisplay; 2926 2927 ActivityContainer(ActivityRecord parentActivity, int stackId, 2928 IActivityContainerCallback callback) { 2929 synchronized (mService) { 2930 mStackId = stackId; 2931 mStack = new ActivityStack(this); 2932 mParentActivity = parentActivity; 2933 mCallback = callback; 2934 mIdString = "ActivtyContainer{" + mStackId + ", parent=" + mParentActivity + "}"; 2935 if (DEBUG_STACK) Slog.d(TAG, "Creating " + this); 2936 } 2937 } 2938 2939 void attachToDisplayLocked(ActivityDisplay activityDisplay) { 2940 if (DEBUG_STACK) Slog.d(TAG, "attachToDisplayLocked: " + this 2941 + " to display=" + activityDisplay); 2942 mActivityDisplay = activityDisplay; 2943 mStack.mDisplayId = activityDisplay.mDisplayId; 2944 mStack.mStacks = activityDisplay.mStacks; 2945 2946 activityDisplay.attachActivities(mStack); 2947 mWindowManager.attachStack(mStackId, activityDisplay.mDisplayId); 2948 } 2949 2950 @Override 2951 public void attachToDisplay(int displayId) { 2952 synchronized (mService) { 2953 ActivityDisplay activityDisplay = mActivityDisplays.get(displayId); 2954 if (activityDisplay == null) { 2955 return; 2956 } 2957 attachToDisplayLocked(activityDisplay); 2958 } 2959 } 2960 2961 @Override 2962 public int getDisplayId() { 2963 if (mActivityDisplay != null) { 2964 return mActivityDisplay.mDisplayId; 2965 } 2966 return -1; 2967 } 2968 2969 @Override 2970 public boolean injectEvent(InputEvent event) { 2971 final long origId = Binder.clearCallingIdentity(); 2972 try { 2973 if (mActivityDisplay != null) { 2974 return mInputManagerInternal.injectInputEvent(event, 2975 mActivityDisplay.mDisplayId, 2976 InputManager.INJECT_INPUT_EVENT_MODE_ASYNC); 2977 } 2978 return false; 2979 } finally { 2980 Binder.restoreCallingIdentity(origId); 2981 } 2982 } 2983 2984 private void detachLocked() { 2985 if (DEBUG_STACK) Slog.d(TAG, "detachLocked: " + this + " from display=" 2986 + mActivityDisplay + " Callers=" + Debug.getCallers(2)); 2987 if (mActivityDisplay != null) { 2988 mActivityDisplay.detachActivitiesLocked(mStack); 2989 mActivityDisplay = null; 2990 mStack.mDisplayId = -1; 2991 mStack.mStacks = null; 2992 mWindowManager.detachStack(mStackId); 2993 } 2994 } 2995 2996 @Override 2997 public void detachFromDisplay() { 2998 synchronized (mService) { 2999 detachLocked(); 3000 } 3001 } 3002 3003 @Override 3004 public final int startActivity(Intent intent) { 3005 mService.enforceNotIsolatedCaller("ActivityContainer.startActivity"); 3006 int userId = mService.handleIncomingUser(Binder.getCallingPid(), 3007 Binder.getCallingUid(), mCurrentUser, false, true, "ActivityContainer", null); 3008 // TODO: Switch to user app stacks here. 3009 String mimeType = intent.getType(); 3010 if (mimeType == null && intent.getData() != null 3011 && "content".equals(intent.getData().getScheme())) { 3012 mimeType = mService.getProviderMimeType(intent.getData(), userId); 3013 } 3014 return startActivityMayWait(null, -1, null, intent, mimeType, null, null, 0, 0, null, 3015 null, null, null, null, userId, this); 3016 } 3017 3018 @Override 3019 public final int startActivityIntentSender(IIntentSender intentSender) { 3020 mService.enforceNotIsolatedCaller("ActivityContainer.startActivityIntentSender"); 3021 3022 if (!(intentSender instanceof PendingIntentRecord)) { 3023 throw new IllegalArgumentException("Bad PendingIntent object"); 3024 } 3025 3026 return ((PendingIntentRecord)intentSender).sendInner(0, null, null, null, null, null, 3027 null, 0, 0, 0, null, this); 3028 } 3029 3030 @Override 3031 public IBinder asBinder() { 3032 return this; 3033 } 3034 3035 @Override 3036 public void attachToSurface(Surface surface, int width, int height, int density) { 3037 mService.enforceNotIsolatedCaller("ActivityContainer.attachToSurface"); 3038 3039 final long origId = Binder.clearCallingIdentity(); 3040 try { 3041 synchronized (mService) { 3042 ActivityDisplay activityDisplay = 3043 new ActivityDisplay(surface, width, height, density); 3044 mActivityDisplays.put(activityDisplay.mDisplayId, activityDisplay); 3045 attachToDisplayLocked(activityDisplay); 3046 mStack.resumeTopActivityLocked(null); 3047 } 3048 if (DEBUG_STACK) Slog.d(TAG, "attachToSurface: " + this + " to display=" 3049 + mActivityDisplay); 3050 } finally { 3051 Binder.restoreCallingIdentity(origId); 3052 } 3053 } 3054 3055 ActivityStackSupervisor getOuter() { 3056 return ActivityStackSupervisor.this; 3057 } 3058 3059 boolean isAttached() { 3060 return mActivityDisplay != null; 3061 } 3062 3063 void getBounds(Point outBounds) { 3064 if (mActivityDisplay != null) { 3065 mActivityDisplay.getBounds(outBounds); 3066 } else { 3067 outBounds.set(0, 0); 3068 } 3069 } 3070 3071 @Override 3072 public String toString() { 3073 return mIdString + (mActivityDisplay == null ? "N" : "A"); 3074 } 3075 } 3076 3077 /** Exactly one of these classes per Display in the system. Capable of holding zero or more 3078 * attached {@link ActivityStack}s */ 3079 final class ActivityDisplay { 3080 /** Actual Display this object tracks. */ 3081 int mDisplayId; 3082 Display mDisplay; 3083 DisplayInfo mDisplayInfo = new DisplayInfo(); 3084 Surface mSurface; 3085 3086 /** All of the stacks on this display. Order matters, topmost stack is in front of all other 3087 * stacks, bottommost behind. Accessed directly by ActivityManager package classes */ 3088 final ArrayList<ActivityStack> mStacks = new ArrayList<ActivityStack>(); 3089 3090 /** If this display is for an ActivityView then the VirtualDisplay created for it is stored 3091 * here. */ 3092 VirtualDisplay mVirtualDisplay; 3093 3094 ActivityDisplay(int displayId) { 3095 init(mDisplayManager.getDisplay(displayId)); 3096 } 3097 3098 ActivityDisplay(Surface surface, int width, int height, int density) { 3099 DisplayManagerGlobal dm = DisplayManagerGlobal.getInstance(); 3100 long ident = Binder.clearCallingIdentity(); 3101 try { 3102 mVirtualDisplay = dm.createVirtualDisplay(mService.mContext, 3103 VIRTUAL_DISPLAY_BASE_NAME, width, height, density, surface, 3104 DisplayManager.VIRTUAL_DISPLAY_FLAG_PUBLIC | 3105 DisplayManager.VIRTUAL_DISPLAY_FLAG_OWN_CONTENT_ONLY); 3106 } finally { 3107 Binder.restoreCallingIdentity(ident); 3108 } 3109 3110 init(mVirtualDisplay.getDisplay()); 3111 mSurface = surface; 3112 3113 mWindowManager.handleDisplayAdded(mDisplayId); 3114 } 3115 3116 private void init(Display display) { 3117 mDisplay = display; 3118 mDisplayId = display.getDisplayId(); 3119 mDisplay.getDisplayInfo(mDisplayInfo); 3120 } 3121 3122 void attachActivities(ActivityStack stack) { 3123 if (DEBUG_STACK) Slog.v(TAG, "attachActivities: attaching " + stack + " to displayId=" 3124 + mDisplayId); 3125 mStacks.add(stack); 3126 } 3127 3128 void detachActivitiesLocked(ActivityStack stack) { 3129 if (DEBUG_STACK) Slog.v(TAG, "detachActivitiesLocked: detaching " + stack 3130 + " from displayId=" + mDisplayId); 3131 mStacks.remove(stack); 3132 if (mStacks.isEmpty() && mVirtualDisplay != null) { 3133 mVirtualDisplay.release(); 3134 mVirtualDisplay = null; 3135 } 3136 mSurface.release(); 3137 } 3138 3139 void getBounds(Point bounds) { 3140 mDisplay.getDisplayInfo(mDisplayInfo); 3141 bounds.x = mDisplayInfo.appWidth; 3142 bounds.y = mDisplayInfo.appHeight; 3143 } 3144 3145 @Override 3146 public String toString() { 3147 return "ActivityDisplay={" + mDisplayId + (mVirtualDisplay == null ? "" : "V") 3148 + " numStacks=" + mStacks.size() + "}"; 3149 } 3150 } 3151} 3152