3 files changed, 16 insertions, 5 deletions
diff --git a/src/com/android/launcher3/compat/PackageInstallerCompat.java b/src/com/android/launcher3/compat/PackageInstallerCompat.java
index 0ae52bd23..62fc050df 100644
--- a/src/com/android/launcher3/compat/PackageInstallerCompat.java
+++ b/src/com/android/launcher3/compat/PackageInstallerCompat.java
@@ -20,6 +20,8 @@ import android.content.Context;
 
 import com.android.launcher3.Utilities;
 
+import java.util.HashSet;
+
 public abstract class PackageInstallerCompat {
 
     public static final int STATUS_INSTALLED = 0;
@@ -42,7 +44,7 @@ public abstract class PackageInstallerCompat {
         }
     }
 
-    public abstract void updateActiveSessionCache();
+    public abstract HashSet<String> updateAndGetActiveSessionCache();
 
     public abstract void onPause();
 
diff --git a/src/com/android/launcher3/compat/PackageInstallerCompatV16.java b/src/com/android/launcher3/compat/PackageInstallerCompatV16.java
index 4cc6fc12f..1910d22ae 100644
--- a/src/com/android/launcher3/compat/PackageInstallerCompatV16.java
+++ b/src/com/android/launcher3/compat/PackageInstallerCompatV16.java
@@ -29,6 +29,7 @@ import org.json.JSONStringer;
 import org.json.JSONTokener;
 
 import java.util.ArrayList;
+import java.util.HashSet;
 
 public class PackageInstallerCompatV16 extends PackageInstallerCompat {
 
@@ -76,9 +77,6 @@ public class PackageInstallerCompatV16 extends PackageInstallerCompat {
     @Override
     public void onStop() { }
 
-    @Override
-    public void updateActiveSessionCache() { }
-
     private void replayUpdates() {
         if (DEBUG) Log.d(TAG, "updates resumed");
         LauncherAppState app = LauncherAppState.getInstanceNoCreate();
@@ -169,4 +167,9 @@ public class PackageInstallerCompatV16 extends PackageInstallerCompat {
         }
         return value;
     }
+
+    @Override
+    public HashSet<String> updateAndGetActiveSessionCache() {
+        return new HashSet<String>();
+    }
 }
diff --git a/src/com/android/launcher3/compat/PackageInstallerCompatVL.java b/src/com/android/launcher3/compat/PackageInstallerCompatVL.java
index 2d56adf91..daacba834 100644
--- a/src/com/android/launcher3/compat/PackageInstallerCompatVL.java
+++ b/src/com/android/launcher3/compat/PackageInstallerCompatVL.java
@@ -27,6 +27,7 @@ import com.android.launcher3.IconCache;
 import com.android.launcher3.LauncherAppState;
 
 import java.util.ArrayList;
+import java.util.HashSet;
 
 public class PackageInstallerCompatVL extends PackageInstallerCompat {
 
@@ -57,11 +58,16 @@ public class PackageInstallerCompatVL extends PackageInstallerCompat {
     }
 
     @Override
-    public void updateActiveSessionCache() {
+    public HashSet<String> updateAndGetActiveSessionCache() {
+        HashSet<String> activePackages = new HashSet<String>();
         UserHandleCompat user = UserHandleCompat.myUserHandle();
         for (SessionInfo info : mInstaller.getAllSessions()) {
             addSessionInfoToCahce(info, user);
+            if (info.getAppPackageName() != null) {
+                activePackages.add(info.getAppPackageName());
+            }
         }
+        return activePackages;
     }
 
     private void addSessionInfoToCahce(SessionInfo info, UserHandleCompat user) {