Android/frameworks_base
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Workaround for not showing previous tasks when time is set.

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Bug: 28908500
Change-Id: I32201d4ce1af0bca1c73c2e0c7862771dac7a8d7
This commit is contained in:
Winson
2016-09-15 16:28:22 -07:00
parent 82f050f736
commit a4fab41e8b
2 changed files with 37 additions and 7 deletions
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37
packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java
View File

@@ -17,6 +17,7 @@
package com.android.systemui.recents;
import android.app.Activity;
import android.app.ActivityManager;
import android.app.ActivityOptions;
import android.app.TaskStackBuilder;
import android.content.BroadcastReceiver;
@@ -87,6 +88,7 @@ import com.android.systemui.statusbar.BaseStatusBar;
import java.io.FileDescriptor;
import java.io.PrintWriter;
import java.util.List;
/**
* The main Recents activity that is started from RecentsComponent.
@@ -165,18 +167,39 @@ public class RecentsActivity extends Activity implements ViewTreeObserver.OnPreD
*/
final BroadcastReceiver mSystemBroadcastReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
public void onReceive(Context ctx, Intent intent) {
String action = intent.getAction();
if (action.equals(Intent.ACTION_SCREEN_OFF)) {
// When the screen turns off, dismiss Recents to Home
dismissRecentsToHomeIfVisible(false);
} else if (action.equals(Intent.ACTION_TIME_CHANGED)) {
// For the time being, if the time changes, then invalidate the
// last-stack-active-time, this ensures that we will just show the last N tasks
// the next time that Recents loads, but prevents really old tasks from showing
// up if the task time is set forward.
Prefs.putLong(RecentsActivity.this, Prefs.Key.OVERVIEW_LAST_STACK_TASK_ACTIVE_TIME,
0);
// If the time shifts but the currentTime >= lastStackActiveTime, then that boundary
// is still valid. Otherwise, we need to reset the lastStackactiveTime to the
// currentTime and remove the old tasks in between which would not be previously
// visible, but currently would be in the new currentTime
long oldLastStackActiveTime = Prefs.getLong(RecentsActivity.this,
Prefs.Key.OVERVIEW_LAST_STACK_TASK_ACTIVE_TIME, -1);
if (oldLastStackActiveTime != -1) {
long currentTime = System.currentTimeMillis();
if (currentTime < oldLastStackActiveTime) {
// We are only removing tasks that are between the new current time
// and the old last stack active time, they were not visible and in the
// TaskStack so we don't need to remove any associated TaskViews but we do
// need to load the task id's from the system
RecentsTaskLoadPlan loadPlan = Recents.getTaskLoader().createLoadPlan(ctx);
loadPlan.preloadRawTasks(false /* includeFrontMostExcludedTask */);
List<ActivityManager.RecentTaskInfo> tasks = loadPlan.getRawTasks();
for (int i = tasks.size() - 1; i >= 0; i--) {
ActivityManager.RecentTaskInfo task = tasks.get(i);
if (currentTime <= task.lastActiveTime && task.lastActiveTime <
oldLastStackActiveTime) {
Recents.getSystemServices().removeTask(task.persistentId);
}
}
Prefs.putLong(RecentsActivity.this,
Prefs.Key.OVERVIEW_LAST_STACK_TASK_ACTIVE_TIME, currentTime);
}
}
}
}
};

7
packages/SystemUI/src/com/android/systemui/recents/model/RecentsTaskLoadPlan.java
View File

@@ -248,6 +248,13 @@ public class RecentsTaskLoadPlan {
return mStack;
}
/**
* Returns the raw list of recent tasks.
*/
public List<ActivityManager.RecentTaskInfo> getRawTasks() {
return mRawTasks;
}
/** Returns whether there are any tasks in any stacks. */
public boolean hasTasks() {
if (mStack != null) {