Create API for launching from recents
Relaunch apps from recents using the same uid and package as was used
in the original launch.
Fixes bug 16358208.
Change-Id: I340800bfee79926b197929360d69f1d570bbf1eb
diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index 3aaa402..2d6d09b 100755
--- a/services/core/java/com/android/server/am/ActivityManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
@@ -18,6 +18,7 @@
import static android.Manifest.permission.INTERACT_ACROSS_USERS;
import static android.Manifest.permission.INTERACT_ACROSS_USERS_FULL;
+import static android.Manifest.permission.START_TASKS_FROM_RECENTS;
import static android.content.pm.PackageManager.PERMISSION_GRANTED;
import static com.android.internal.util.XmlUtils.readBooleanAttribute;
import static com.android.internal.util.XmlUtils.readIntAttribute;
@@ -3545,6 +3546,23 @@
}
}
+ @Override
+ public final int startActivityFromRecents(int taskId, Bundle options) {
+ if (checkCallingPermission(START_TASKS_FROM_RECENTS) != PackageManager.PERMISSION_GRANTED) {
+ String msg = "Permission Denial: startActivityFromRecents called without " +
+ START_TASKS_FROM_RECENTS;
+ Slog.w(TAG, msg);
+ throw new SecurityException(msg);
+ }
+ final TaskRecord task = mStackSupervisor.anyTaskForIdLocked(taskId);
+ if (task == null) {
+ throw new ActivityNotFoundException("Task " + taskId + " not found.");
+ }
+ return startActivityInPackage(task.mCallingUid, task.mCallingPackage,
+ task.intent, null, null, null, 0, 0, options, task.userId,
+ null);
+ }
+
final int startActivityInPackage(int uid, String callingPackage,
Intent intent, String resolvedType, IBinder resultTo,
String resultWho, int requestCode, int startFlags, Bundle options, int userId,
diff --git a/services/core/java/com/android/server/am/TaskRecord.java b/services/core/java/com/android/server/am/TaskRecord.java
index 767a970..69949a4 100644
--- a/services/core/java/com/android/server/am/TaskRecord.java
+++ b/services/core/java/com/android/server/am/TaskRecord.java
@@ -68,6 +68,8 @@
private static final String ATTR_TASK_AFFILIATION = "task_affiliation";
private static final String ATTR_PREV_AFFILIATION = "prev_affiliation";
private static final String ATTR_NEXT_AFFILIATION = "next_affiliation";
+ private static final String ATTR_CALLING_UID = "calling_uid";
+ private static final String ATTR_CALLING_PACKAGE = "calling_package";
private static final String LAST_ACTIVITY_ICON_SUFFIX = "_last_activity_icon_";
private static final String TASK_THUMBNAIL_SUFFIX = "_task_thumbnail";
@@ -144,6 +146,10 @@
TaskRecord mNextAffiliate; // next task in affiliated chain.
int mNextAffiliateTaskId = -1; // next id for persistence.
+ // For relaunching the task from recents as though it was launched by the original launcher.
+ int mCallingUid;
+ String mCallingPackage;
+
final ActivityManagerService mService;
TaskRecord(ActivityManagerService service, int _taskId, ActivityInfo info, Intent _intent,
@@ -167,7 +173,7 @@
String _lastDescription, ArrayList<ActivityRecord> activities, long _firstActiveTime,
long _lastActiveTime, long lastTimeMoved, boolean neverRelinquishIdentity,
ActivityManager.TaskDescription _lastTaskDescription, int taskAffiliation,
- int prevTaskId, int nextTaskId) {
+ int prevTaskId, int nextTaskId, int callingUid, String callingPackage) {
mService = service;
mFilename = String.valueOf(_taskId) + TASK_THUMBNAIL_SUFFIX +
TaskPersister.IMAGE_EXTENSION;
@@ -196,6 +202,8 @@
mAffiliatedTaskId = taskAffiliation;
mPrevAffiliateTaskId = prevTaskId;
mNextAffiliateTaskId = nextTaskId;
+ mCallingUid = callingUid;
+ mCallingPackage = callingPackage;
}
void touchActiveTime() {
@@ -458,6 +466,8 @@
if (mActivities.isEmpty()) {
taskType = r.mActivityType;
isPersistable = r.isPersistable();
+ mCallingUid = r.launchedFromUid;
+ mCallingPackage = r.launchedFromPackage;
// Clamp to [1, 100].
maxRecents = Math.min(Math.max(r.info.maxRecents, 1), 100);
} else {
@@ -765,6 +775,8 @@
out.attribute(null, ATTR_TASK_AFFILIATION, String.valueOf(mAffiliatedTaskId));
out.attribute(null, ATTR_PREV_AFFILIATION, String.valueOf(mPrevAffiliateTaskId));
out.attribute(null, ATTR_NEXT_AFFILIATION, String.valueOf(mNextAffiliateTaskId));
+ out.attribute(null, ATTR_CALLING_UID, String.valueOf(mCallingUid));
+ out.attribute(null, ATTR_CALLING_PACKAGE, mCallingPackage == null ? "" : mCallingPackage);
if (affinityIntent != null) {
out.startTag(null, TAG_AFFINITYINTENT);
@@ -816,6 +828,8 @@
int taskAffiliation = -1;
int prevTaskId = -1;
int nextTaskId = -1;
+ int callingUid = -1;
+ String callingPackage = "";
for (int attrNdx = in.getAttributeCount() - 1; attrNdx >= 0; --attrNdx) {
final String attrName = in.getAttributeName(attrNdx);
@@ -858,6 +872,10 @@
prevTaskId = Integer.valueOf(attrValue);
} else if (ATTR_NEXT_AFFILIATION.equals(attrName)) {
nextTaskId = Integer.valueOf(attrValue);
+ } else if (ATTR_CALLING_UID.equals(attrName)) {
+ callingUid = Integer.valueOf(attrValue);
+ } else if (ATTR_CALLING_PACKAGE.equals(attrName)) {
+ callingPackage = attrValue;
} else {
Slog.w(TAG, "TaskRecord: Unknown attribute=" + attrName);
}
@@ -898,7 +916,8 @@
affinityIntent, affinity, realActivity, origActivity, rootHasReset,
autoRemoveRecents, askedCompatMode, taskType, userId, lastDescription, activities,
firstActiveTime, lastActiveTime, lastTimeOnTop, neverRelinquishIdentity,
- taskDescription, taskAffiliation, prevTaskId, nextTaskId);
+ taskDescription, taskAffiliation, prevTaskId, nextTaskId, callingUid,
+ callingPackage);
for (int activityNdx = activities.size() - 1; activityNdx >=0; --activityNdx) {
activities.get(activityNdx).task = task;