Examples with ResultInfo android.app.ResultInfo used on opensource projects

Example 26 with ResultInfo

use of android.app.ResultInfo in project android_frameworks_base by crdroidandroid.

the class ActivityStack method resumeTopActivityInnerLocked.

private boolean resumeTopActivityInnerLocked(ActivityRecord prev, ActivityOptions options) {
    if (DEBUG_LOCKSCREEN)
        mService.logLockScreen("");
    if (!mService.mBooting && !mService.mBooted) {
        // Not ready yet!
        return false;
    }
    ActivityRecord parent = mActivityContainer.mParentActivity;
    if ((parent != null && parent.state != ActivityState.RESUMED) || !mActivityContainer.isAttachedLocked()) {
        // TODO: If in a loop, make sure that parent stack resumeTopActivity is called 1st.
        return false;
    }
    mStackSupervisor.cancelInitializingActivities();
    // Find the first activity that is not finishing.
    final ActivityRecord next = topRunningActivityLocked();
    // Remember how we'll process this pause/resume situation, and ensure
    // that the state is reset however we wind up proceeding.
    final boolean userLeaving = mStackSupervisor.mUserLeaving;
    mStackSupervisor.mUserLeaving = false;
    final TaskRecord prevTask = prev != null ? prev.task : null;
    if (next == null) {
        // There are no more activities!
        final String reason = "noMoreActivities";
        final int returnTaskType = prevTask == null || !prevTask.isOverHomeStack() ? HOME_ACTIVITY_TYPE : prevTask.getTaskToReturnTo();
        if (!mFullscreen && adjustFocusToNextFocusableStackLocked(returnTaskType, reason)) {
            // stack is not covering the entire screen.
            return mStackSupervisor.resumeFocusedStackTopActivityLocked(mStackSupervisor.getFocusedStack(), prev, null);
        }
        // Let's just start up the Launcher...
        ActivityOptions.abort(options);
        if (DEBUG_STATES)
            Slog.d(TAG_STATES, "resumeTopActivityLocked: No more activities go home");
        if (DEBUG_STACK)
            mStackSupervisor.validateTopActivitiesLocked();
        // Only resume home if on home display
        return isOnHomeDisplay() && mStackSupervisor.resumeHomeStackTask(returnTaskType, prev, reason);
    }
    next.delayedResume = false;
    // If the top activity is the resumed one, nothing to do.
    if (mResumedActivity == next && next.state == ActivityState.RESUMED && mStackSupervisor.allResumedActivitiesComplete()) {
        // Make sure we have executed any pending transitions, since there
        // should be nothing left to do at this point.
        mWindowManager.executeAppTransition();
        mNoAnimActivities.clear();
        ActivityOptions.abort(options);
        if (DEBUG_STATES)
            Slog.d(TAG_STATES, "resumeTopActivityLocked: Top activity resumed " + next);
        if (DEBUG_STACK)
            mStackSupervisor.validateTopActivitiesLocked();
        return false;
    }
    final TaskRecord nextTask = next.task;
    if (prevTask != null && prevTask.stack == this && prevTask.isOverHomeStack() && prev.finishing && prev.frontOfTask) {
        if (DEBUG_STACK)
            mStackSupervisor.validateTopActivitiesLocked();
        if (prevTask == nextTask) {
            prevTask.setFrontOfTask();
        } else if (prevTask != topTask()) {
            // This task is going away but it was supposed to return to the home stack.
            // Now the task above it has to return to the home task instead.
            final int taskNdx = mTaskHistory.indexOf(prevTask) + 1;
            mTaskHistory.get(taskNdx).setTaskToReturnTo(HOME_ACTIVITY_TYPE);
        } else if (!isOnHomeDisplay()) {
            return false;
        } else if (!isHomeStack()) {
            if (DEBUG_STATES)
                Slog.d(TAG_STATES, "resumeTopActivityLocked: Launching home next");
            final int returnTaskType = prevTask == null || !prevTask.isOverHomeStack() ? HOME_ACTIVITY_TYPE : prevTask.getTaskToReturnTo();
            return isOnHomeDisplay() && mStackSupervisor.resumeHomeStackTask(returnTaskType, prev, "prevFinished");
        }
    }
    // activity is paused, well that is the state we want.
    if (mService.isSleepingOrShuttingDownLocked() && mLastPausedActivity == next && mStackSupervisor.allPausedActivitiesComplete()) {
        // Make sure we have executed any pending transitions, since there
        // should be nothing left to do at this point.
        mWindowManager.executeAppTransition();
        mNoAnimActivities.clear();
        ActivityOptions.abort(options);
        if (DEBUG_STATES)
            Slog.d(TAG_STATES, "resumeTopActivityLocked: Going to sleep and all paused");
        if (DEBUG_STACK)
            mStackSupervisor.validateTopActivitiesLocked();
        return false;
    }
    // another user's activities to the top of the stack.
    if (!mService.mUserController.hasStartedUserState(next.userId)) {
        Slog.w(TAG, "Skipping resume of top activity " + next + ": user " + next.userId + " is stopped");
        if (DEBUG_STACK)
            mStackSupervisor.validateTopActivitiesLocked();
        return false;
    }
    // Some activities may want to alter the system power management
    if (mStackSupervisor.mService.mPerf != null) {
        mStackSupervisor.mService.mPerf.activityResumed(next.intent);
    }
    // The activity may be waiting for stop, but that is no longer
    // appropriate for it.
    mStackSupervisor.mStoppingActivities.remove(next);
    mStackSupervisor.mGoingToSleepActivities.remove(next);
    next.sleeping = false;
    mStackSupervisor.mWaitingVisibleActivities.remove(next);
    if (DEBUG_SWITCH)
        Slog.v(TAG_SWITCH, "Resuming " + next);
    // If we are currently pausing an activity, then don't do anything until that is done.
    if (!mStackSupervisor.allPausedActivitiesComplete()) {
        if (DEBUG_SWITCH || DEBUG_PAUSE || DEBUG_STATES)
            Slog.v(TAG_PAUSE, "resumeTopActivityLocked: Skip resume: some activity pausing.");
        if (DEBUG_STACK)
            mStackSupervisor.validateTopActivitiesLocked();
        return false;
    }
    mStackSupervisor.setLaunchSource(next.info.applicationInfo.uid);
    // We need to start pausing the current activity so the top one can be resumed...
    final boolean dontWaitForPause = (next.info.flags & FLAG_RESUME_WHILE_PAUSING) != 0;
    boolean pausing = mStackSupervisor.pauseBackStacks(userLeaving, next, dontWaitForPause);
    if (mResumedActivity != null) {
        if (DEBUG_STATES)
            Slog.d(TAG_STATES, "resumeTopActivityLocked: Pausing " + mResumedActivity);
        pausing |= startPausingLocked(userLeaving, false, next, dontWaitForPause);
    }
    if (pausing) {
        if (DEBUG_SWITCH || DEBUG_STATES)
            Slog.v(TAG_STATES, "resumeTopActivityLocked: Skip resume: need to start pausing");
        // happens to be sitting towards the end.
        if (next.app != null && next.app.thread != null) {
            mService.updateLruProcessLocked(next.app, true, null);
        }
        if (DEBUG_STACK)
            mStackSupervisor.validateTopActivitiesLocked();
        return true;
    } else if (mResumedActivity == next && next.state == ActivityState.RESUMED && mStackSupervisor.allResumedActivitiesComplete()) {
        // It is possible for the activity to be resumed when we paused back stacks above if the
        // next activity doesn't have to wait for pause to complete.
        // So, nothing else to-do except:
        // Make sure we have executed any pending transitions, since there
        // should be nothing left to do at this point.
        mWindowManager.executeAppTransition();
        mNoAnimActivities.clear();
        ActivityOptions.abort(options);
        if (DEBUG_STATES)
            Slog.d(TAG_STATES, "resumeTopActivityLocked: Top activity resumed (dontWaitForPause) " + next);
        if (DEBUG_STACK)
            mStackSupervisor.validateTopActivitiesLocked();
        return true;
    }
    // sure to finish it as we're making a new activity topmost.
    if (mService.isSleepingLocked() && mLastNoHistoryActivity != null && !mLastNoHistoryActivity.finishing) {
        if (DEBUG_STATES)
            Slog.d(TAG_STATES, "no-history finish of " + mLastNoHistoryActivity + " on new resume");
        requestFinishActivityLocked(mLastNoHistoryActivity.appToken, Activity.RESULT_CANCELED, null, "resume-no-history", false);
        mLastNoHistoryActivity = null;
    }
    if (prev != null && prev != next) {
        if (!mStackSupervisor.mWaitingVisibleActivities.contains(prev) && next != null && !next.nowVisible) {
            mStackSupervisor.mWaitingVisibleActivities.add(prev);
            if (DEBUG_SWITCH)
                Slog.v(TAG_SWITCH, "Resuming top, waiting visible to hide: " + prev);
        } else {
            // new one is found to be full-screen or not.
            if (prev.finishing) {
                mWindowManager.setAppVisibility(prev.appToken, false);
                if (DEBUG_SWITCH)
                    Slog.v(TAG_SWITCH, "Not waiting for visible to hide: " + prev + ", waitingVisible=" + mStackSupervisor.mWaitingVisibleActivities.contains(prev) + ", nowVisible=" + next.nowVisible);
            } else {
                if (DEBUG_SWITCH)
                    Slog.v(TAG_SWITCH, "Previous already visible but still waiting to hide: " + prev + ", waitingVisible=" + mStackSupervisor.mWaitingVisibleActivities.contains(prev) + ", nowVisible=" + next.nowVisible);
            }
        }
    }
    // considered stopped.
    try {
        AppGlobals.getPackageManager().setPackageStoppedState(next.packageName, false, next.userId);
    /* TODO: Verify if correct userid */
    } catch (RemoteException e1) {
    } catch (IllegalArgumentException e) {
        Slog.w(TAG, "Failed trying to unstop package " + next.packageName + ": " + e);
    }
    // We are starting up the next activity, so tell the window manager
    // that the previous one will be hidden soon.  This way it can know
    // to ignore it when computing the desired screen orientation.
    boolean anim = true;
    if (prev != null) {
        if (prev.finishing) {
            if (DEBUG_TRANSITION)
                Slog.v(TAG_TRANSITION, "Prepare close transition: prev=" + prev);
            if (mNoAnimActivities.contains(prev)) {
                anim = false;
                mWindowManager.prepareAppTransition(TRANSIT_NONE, false);
            } else {
                mWindowManager.prepareAppTransition(prev.task == next.task ? TRANSIT_ACTIVITY_CLOSE : TRANSIT_TASK_CLOSE, false);
                if (prev.task != next.task) {
                    if (mStackSupervisor.mService.mPerf != null) {
                        mStackSupervisor.mService.mPerf.cpuBoost(2000 * 1000);
                    }
                }
            }
            mWindowManager.setAppVisibility(prev.appToken, false);
        } else {
            if (DEBUG_TRANSITION)
                Slog.v(TAG_TRANSITION, "Prepare open transition: prev=" + prev);
            if (mNoAnimActivities.contains(next)) {
                anim = false;
                mWindowManager.prepareAppTransition(TRANSIT_NONE, false);
            } else {
                mWindowManager.prepareAppTransition(prev.task == next.task ? TRANSIT_ACTIVITY_OPEN : next.mLaunchTaskBehind ? TRANSIT_TASK_OPEN_BEHIND : TRANSIT_TASK_OPEN, false);
                if (prev.task != next.task) {
                    if (mStackSupervisor.mService.mPerf != null) {
                        mStackSupervisor.mService.mPerf.cpuBoost(2000 * 1000);
                    }
                }
            }
        }
    } else {
        if (DEBUG_TRANSITION)
            Slog.v(TAG_TRANSITION, "Prepare open transition: no previous");
        if (mNoAnimActivities.contains(next)) {
            anim = false;
            mWindowManager.prepareAppTransition(TRANSIT_NONE, false);
        } else {
            mWindowManager.prepareAppTransition(TRANSIT_ACTIVITY_OPEN, false);
        }
    }
    Bundle resumeAnimOptions = null;
    if (anim) {
        ActivityOptions opts = next.getOptionsForTargetActivityLocked();
        if (opts != null) {
            resumeAnimOptions = opts.toBundle();
        }
        next.applyOptionsLocked();
    } else {
        next.clearOptionsLocked();
    }
    ActivityStack lastStack = mStackSupervisor.getLastStack();
    if (next.app != null && next.app.thread != null) {
        if (DEBUG_SWITCH)
            Slog.v(TAG_SWITCH, "Resume running: " + next + " stopped=" + next.stopped + " visible=" + next.visible);
        // If the previous activity is translucent, force a visibility update of
        // the next activity, so that it's added to WM's opening app list, and
        // transition animation can be set up properly.
        // For example, pressing Home button with a translucent activity in focus.
        // Launcher is already visible in this case. If we don't add it to opening
        // apps, maybeUpdateTransitToWallpaper() will fail to identify this as a
        // TRANSIT_WALLPAPER_OPEN animation, and run some funny animation.
        final boolean lastActivityTranslucent = lastStack != null && (!lastStack.mFullscreen || (lastStack.mLastPausedActivity != null && !lastStack.mLastPausedActivity.fullscreen));
        // This activity is now becoming visible.
        if (!next.visible || next.stopped || lastActivityTranslucent) {
            mWindowManager.setAppVisibility(next.appToken, true);
        }
        // schedule launch ticks to collect information about slow apps.
        next.startLaunchTickingLocked();
        ActivityRecord lastResumedActivity = lastStack == null ? null : lastStack.mResumedActivity;
        ActivityState lastState = next.state;
        mService.updateCpuStats();
        if (DEBUG_STATES)
            Slog.v(TAG_STATES, "Moving to RESUMED: " + next + " (in existing)");
        next.state = ActivityState.RESUMED;
        mResumedActivity = next;
        next.task.touchActiveTime();
        mRecentTasks.addLocked(next.task);
        mService.updateLruProcessLocked(next.app, true, null);
        updateLRUListLocked(next);
        mService.updateOomAdjLocked();
        // Have the window manager re-evaluate the orientation of
        // the screen based on the new activity order.
        boolean notUpdated = true;
        if (mStackSupervisor.isFocusedStack(this)) {
            Configuration config = mWindowManager.updateOrientationFromAppTokens(mService.mConfiguration, next.mayFreezeScreenLocked(next.app) ? next.appToken : null);
            if (config != null) {
                next.frozenBeforeDestroy = true;
            }
            notUpdated = !mService.updateConfigurationLocked(config, next, false);
        }
        if (notUpdated) {
            // The configuration update wasn't able to keep the existing
            // instance of the activity, and instead started a new one.
            // We should be all done, but let's just make sure our activity
            // is still at the top and schedule another run if something
            // weird happened.
            ActivityRecord nextNext = topRunningActivityLocked();
            if (DEBUG_SWITCH || DEBUG_STATES)
                Slog.i(TAG_STATES, "Activity config changed during resume: " + next + ", new next: " + nextNext);
            if (nextNext != next) {
                // Do over!
                mStackSupervisor.scheduleResumeTopActivities();
            }
            if (mStackSupervisor.reportResumedActivityLocked(next)) {
                mNoAnimActivities.clear();
                if (DEBUG_STACK)
                    mStackSupervisor.validateTopActivitiesLocked();
                return true;
            }
            if (DEBUG_STACK)
                mStackSupervisor.validateTopActivitiesLocked();
            return false;
        }
        try {
            // Deliver all pending results.
            ArrayList<ResultInfo> a = next.results;
            if (a != null) {
                final int N = a.size();
                if (!next.finishing && N > 0) {
                    if (DEBUG_RESULTS)
                        Slog.v(TAG_RESULTS, "Delivering results to " + next + ": " + a);
                    next.app.thread.scheduleSendResult(next.appToken, a);
                }
            }
            boolean allowSavedSurface = true;
            if (next.newIntents != null) {
                // what's left last time.
                for (int i = next.newIntents.size() - 1; i >= 0; i--) {
                    final Intent intent = next.newIntents.get(i);
                    if (intent != null && !ActivityRecord.isMainIntent(intent)) {
                        allowSavedSurface = false;
                        break;
                    }
                }
                next.app.thread.scheduleNewIntent(next.newIntents, next.appToken, false);
            }
            // Well the app will no longer be stopped.
            // Clear app token stopped state in window manager if needed.
            mWindowManager.notifyAppResumed(next.appToken, next.stopped, allowSavedSurface);
            EventLog.writeEvent(EventLogTags.AM_RESUME_ACTIVITY, next.userId, System.identityHashCode(next), next.task.taskId, next.shortComponentName);
            next.sleeping = false;
            mService.showUnsupportedZoomDialogIfNeededLocked(next);
            mService.showAskCompatModeDialogLocked(next);
            next.app.pendingUiClean = true;
            next.app.forceProcessStateUpTo(mService.mTopProcessState);
            next.clearOptionsLocked();
            next.app.thread.scheduleResumeActivity(next.appToken, next.app.repProcState, mService.isNextTransitionForward(), resumeAnimOptions);
            mStackSupervisor.checkReadyForSleepLocked();
            if (DEBUG_STATES)
                Slog.d(TAG_STATES, "resumeTopActivityLocked: Resumed " + next);
        } catch (Exception e) {
            // Whoops, need to restart this activity!
            if (DEBUG_STATES)
                Slog.v(TAG_STATES, "Resume failed; resetting state to " + lastState + ": " + next);
            next.state = lastState;
            if (lastStack != null) {
                lastStack.mResumedActivity = lastResumedActivity;
            }
            Slog.i(TAG, "Restarting because process died: " + next);
            if (!next.hasBeenLaunched) {
                next.hasBeenLaunched = true;
            } else if (SHOW_APP_STARTING_PREVIEW && lastStack != null && mStackSupervisor.isFrontStack(lastStack)) {
                next.showStartingWindow(null, true);
            }
            mStackSupervisor.startSpecificActivityLocked(next, true, false);
            if (DEBUG_STACK)
                mStackSupervisor.validateTopActivitiesLocked();
            return true;
        }
        // to recover the activity.
        try {
            completeResumeLocked(next);
        } catch (Exception e) {
            // If any exception gets thrown, toss away this
            // activity and try the next one.
            Slog.w(TAG, "Exception thrown during resume of " + next, e);
            requestFinishActivityLocked(next.appToken, Activity.RESULT_CANCELED, null, "resume-exception", true);
            if (DEBUG_STACK)
                mStackSupervisor.validateTopActivitiesLocked();
            return true;
        }
    } else {
        // Whoops, need to restart this activity!
        if (!next.hasBeenLaunched) {
            next.hasBeenLaunched = true;
        } else {
            if (SHOW_APP_STARTING_PREVIEW) {
                next.showStartingWindow(null, true);
            }
            if (DEBUG_SWITCH)
                Slog.v(TAG_SWITCH, "Restarting: " + next);
        }
        if (DEBUG_STATES)
            Slog.d(TAG_STATES, "resumeTopActivityLocked: Restarting " + next);
        mStackSupervisor.startSpecificActivityLocked(next, true, true);
    }
    if (DEBUG_STACK)
        mStackSupervisor.validateTopActivitiesLocked();
    return true;
}