/** Starts the recents activity */
void startRecentsActivity(ActivityManager.RunningTaskInfo topTask, boolean isTopTaskHome) {
RecentsTaskLoader loader = RecentsTaskLoader.getInstance();
RecentsConfiguration.reinitialize(mContext, mSystemServicesProxy);
if (sInstanceLoadPlan == null) {
// Create a new load plan if onPreloadRecents() was never triggered
sInstanceLoadPlan = loader.createLoadPlan(mContext);
}
// Temporarily skip the transition (use a dummy fade) if multi stack is enabled.
// For multi-stack we need to figure out where each of the tasks are going.
if (mConfig.multiStackEnabled) {
loader.preloadTasks(sInstanceLoadPlan, true);
ArrayList<TaskStack> stacks = sInstanceLoadPlan.getAllTaskStacks();
TaskStack stack = stacks.get(0);
mDummyStackView.updateMinMaxScrollForStack(stack, mTriggeredFromAltTab, true);
TaskStackViewLayoutAlgorithm.VisibilityReport stackVr =
mDummyStackView.computeStackVisibilityReport();
ActivityOptions opts = getUnknownTransitionActivityOptions();
startAlternateRecentsActivity(
topTask,
opts,
true /* fromHome */,
false /* fromSearchHome */,
false /* fromThumbnail */,
stackVr);
return;
}
if (!sInstanceLoadPlan.hasTasks()) {
loader.preloadTasks(sInstanceLoadPlan, isTopTaskHome);
}
ArrayList<TaskStack> stacks = sInstanceLoadPlan.getAllTaskStacks();
TaskStack stack = stacks.get(0);
// Prepare the dummy stack for the transition
mDummyStackView.updateMinMaxScrollForStack(stack, mTriggeredFromAltTab, isTopTaskHome);
TaskStackViewLayoutAlgorithm.VisibilityReport stackVr =
mDummyStackView.computeStackVisibilityReport();
boolean hasRecentTasks = stack.getTaskCount() > 0;
boolean useThumbnailTransition = (topTask != null) && !isTopTaskHome && hasRecentTasks;
if (useThumbnailTransition) {
// Try starting with a thumbnail transition
ActivityOptions opts = getThumbnailTransitionActivityOptions(topTask, stack, mDummyStackView);
if (opts != null) {
startAlternateRecentsActivity(
topTask,
opts,
false /* fromHome */,
false /* fromSearchHome */,
true /* fromThumbnail */,
stackVr);
} else {
// Fall through below to the non-thumbnail transition
useThumbnailTransition = false;
}
}
if (!useThumbnailTransition) {
// If there is no thumbnail transition, but is launching from home into recents, then
// use a quick home transition and do the animation from home
if (hasRecentTasks) {
String homeActivityPackage = mSystemServicesProxy.getHomeActivityPackageName();
String searchWidgetPackage =
Prefs.getString(mContext, Prefs.Key.SEARCH_APP_WIDGET_PACKAGE, null);
// Determine whether we are coming from a search owned home activity
boolean fromSearchHome =
(homeActivityPackage != null) && homeActivityPackage.equals(searchWidgetPackage);
ActivityOptions opts = getHomeTransitionActivityOptions(fromSearchHome);
startAlternateRecentsActivity(
topTask, opts, true /* fromHome */, fromSearchHome, false /* fromThumbnail */, stackVr);
} else {
// Otherwise we do the normal fade from an unknown source
ActivityOptions opts = getUnknownTransitionActivityOptions();
startAlternateRecentsActivity(
topTask,
opts,
true /* fromHome */,
false /* fromSearchHome */,
false /* fromThumbnail */,
stackVr);
}
}
mLastToggleTime = SystemClock.elapsedRealtime();
}
