diff --git a/core/java/android/app/usage/UsageEvents.java b/core/java/android/app/usage/UsageEvents.java
index ce8b05a..0d7a941 100644
--- a/core/java/android/app/usage/UsageEvents.java
+++ b/core/java/android/app/usage/UsageEvents.java
@@ -15,10 +15,13 @@
  */
 package android.app.usage;
 
+import android.annotation.IntDef;
 import android.content.res.Configuration;
 import android.os.Parcel;
 import android.os.Parcelable;
 
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
 import java.util.Arrays;
 import java.util.List;
 
@@ -28,6 +31,12 @@
  */
 public final class UsageEvents implements Parcelable {
 
+    /** @hide */
+    public static final String INSTANT_APP_PACKAGE_NAME = "android.instant_app";
+
+    /** @hide */
+    public static final String INSTANT_APP_CLASS_NAME = "android.instant_class";
+
     /**
      * An event representing a state change for a component.
      */
@@ -91,6 +100,17 @@
          */
         public static final int CHOOSER_ACTION = 9;
 
+        /** @hide */
+        public static final int FLAG_IS_PACKAGE_INSTANT_APP = 1 << 0;
+
+        /** @hide */
+        @IntDef(flag = true,
+                value = {
+                        FLAG_IS_PACKAGE_INSTANT_APP,
+                })
+        @Retention(RetentionPolicy.SOURCE)
+        public @interface EventFlags {}
+
         /**
          * {@hide}
          */
@@ -145,6 +165,27 @@
          */
         public String[] mContentAnnotations;
 
+        /** @hide */
+        @EventFlags
+        public int mFlags;
+
+        public Event() {
+        }
+
+        /** @hide */
+        public Event(Event orig) {
+            mPackage = orig.mPackage;
+            mClass = orig.mClass;
+            mTimeStamp = orig.mTimeStamp;
+            mEventType = orig.mEventType;
+            mConfiguration = orig.mConfiguration;
+            mShortcutId = orig.mShortcutId;
+            mAction = orig.mAction;
+            mContentType = orig.mContentType;
+            mContentAnnotations = orig.mContentAnnotations;
+            mFlags = orig.mFlags;
+        }
+
         /**
          * The package name of the source of this event.
          */
@@ -196,6 +237,20 @@
         public String getShortcutId() {
             return mShortcutId;
         }
+
+        /** @hide */
+        public Event getObfuscatedIfInstantApp() {
+            if ((mFlags & FLAG_IS_PACKAGE_INSTANT_APP) == 0) {
+                return this;
+            }
+            final Event ret = new Event(this);
+            ret.mPackage = INSTANT_APP_PACKAGE_NAME;
+            ret.mClass = INSTANT_APP_CLASS_NAME;
+
+            // Note there are other string fields too, but they're for app shortcuts and choosers,
+            // which instant apps can't use anyway, so there's no need to hide them.
+            return ret;
+        }
     }
 
     // Only used when creating the resulting events. Not used for reading/unparceling.
diff --git a/core/java/android/app/usage/UsageStats.java b/core/java/android/app/usage/UsageStats.java
index 0874095..7eef85c 100644
--- a/core/java/android/app/usage/UsageStats.java
+++ b/core/java/android/app/usage/UsageStats.java
@@ -85,6 +85,17 @@
         mChooserCounts = stats.mChooserCounts;
     }
 
+    /**
+     * {@hide}
+     */
+    public UsageStats getObfuscatedForInstantApp() {
+        final UsageStats ret = new UsageStats(this);
+
+        ret.mPackageName = UsageEvents.INSTANT_APP_PACKAGE_NAME;
+
+        return ret;
+    }
+
     public String getPackageName() {
         return mPackageName;
     }
diff --git a/core/java/android/app/usage/UsageStatsManagerInternal.java b/core/java/android/app/usage/UsageStatsManagerInternal.java
index 08595dd..dbaace2 100644
--- a/core/java/android/app/usage/UsageStatsManagerInternal.java
+++ b/core/java/android/app/usage/UsageStatsManagerInternal.java
@@ -127,7 +127,12 @@
 
     public abstract void applyRestoredPayload(int user, String key, byte[] payload);
 
-    /* Cache Quota Service API */
+    /**
+     * Return usage stats.
+     *
+     * @param obfuscateInstantApps whether instant app package names need to be obfuscated in the
+     *     result.
+     */
     public abstract List<UsageStats> queryUsageStatsForUser(
-            int userId, int interval, long beginTime, long endTime);
+            int userId, int interval, long beginTime, long endTime, boolean obfuscateInstantApps);
 }
diff --git a/core/java/android/content/pm/PackageManagerInternal.java b/core/java/android/content/pm/PackageManagerInternal.java
index 426f3cf..87e6a84 100644
--- a/core/java/android/content/pm/PackageManagerInternal.java
+++ b/core/java/android/content/pm/PackageManagerInternal.java
@@ -341,4 +341,7 @@
      * Return the taget SDK version for the app with the given UID.
      */
     public abstract int getUidTargetSdkVersion(int uid);
+
+    /** Whether the binder caller can access instant apps. */
+    public abstract boolean canAccessInstantApps(int callingUid);
 }
diff --git a/services/core/java/com/android/server/pm/PackageManagerService.java b/services/core/java/com/android/server/pm/PackageManagerService.java
index d171f6e..acd9cfa 100644
--- a/services/core/java/com/android/server/pm/PackageManagerService.java
+++ b/services/core/java/com/android/server/pm/PackageManagerService.java
@@ -3480,6 +3480,31 @@
         return cur;
     }
 
+    /**
+     * Returns whether or not a full application can see an instant application.
+     * <p>
+     * Currently, there are three cases in which this can occur:
+     * <ol>
+     * <li>The calling application is a "special" process. The special
+     *     processes are {@link Process#SYSTEM_UID}, {@link Process#SHELL_UID}
+     *     and {@code 0}</li>
+     * <li>The calling application has the permission
+     *     {@link android.Manifest.permission#ACCESS_INSTANT_APPS}</li>
+     * <li>[TODO] The calling application is the default launcher on the
+     *     system partition.</li>
+     * </ol>
+     */
+    private boolean canAccessInstantApps(int callingUid) {
+        final boolean isSpecialProcess =
+                callingUid == Process.SYSTEM_UID
+                        || callingUid == Process.SHELL_UID
+                        || callingUid == 0;
+        final boolean allowMatchInstant =
+                isSpecialProcess
+                        || mContext.checkCallingOrSelfPermission(
+                        android.Manifest.permission.ACCESS_INSTANT_APPS) == PERMISSION_GRANTED;
+        return allowMatchInstant;
+    }
     private PackageInfo generatePackageInfo(PackageSetting ps, int flags, int userId) {
         if (!sUserManager.exists(userId)) return null;
         if (ps == null) {
@@ -3489,19 +3514,15 @@
         if (p == null) {
             return null;
         }
+        final int callingUid =  Binder.getCallingUid();
         // Filter out ephemeral app metadata:
         //   * The system/shell/root can see metadata for any app
         //   * An installed app can see metadata for 1) other installed apps
         //     and 2) ephemeral apps that have explicitly interacted with it
         //   * Ephemeral apps can only see their own data and exposed installed apps
         //   * Holding a signature permission allows seeing instant apps
-        final int callingAppId = UserHandle.getAppId(Binder.getCallingUid());
-        if (callingAppId != Process.SYSTEM_UID
-                && callingAppId != Process.SHELL_UID
-                && callingAppId != Process.ROOT_UID
-                && checkUidPermission(Manifest.permission.ACCESS_INSTANT_APPS,
-                        Binder.getCallingUid()) != PackageManager.PERMISSION_GRANTED) {
-            final String instantAppPackageName = getInstantAppPackageName(Binder.getCallingUid());
+        if (!canAccessInstantApps(callingUid)) {
+            final String instantAppPackageName = getInstantAppPackageName(callingUid);
             if (instantAppPackageName != null) {
                 // ephemeral apps can only get information on themselves or
                 // installed apps that are exposed.
@@ -3512,6 +3533,7 @@
             } else {
                 if (ps.getInstantApp(userId)) {
                     // only get access to the ephemeral app if we've been granted access
+                    final int callingAppId = UserHandle.getAppId(callingUid);
                     if (!mInstantAppRegistry.isInstantAccessGranted(
                             userId, callingAppId, ps.appId)) {
                         return null;
@@ -23840,6 +23862,11 @@
                 return getUidTargetSdkVersionLockedLPr(uid);
             }
         }
+
+        @Override
+        public boolean canAccessInstantApps(int callingUid) {
+            return PackageManagerService.this.canAccessInstantApps(callingUid);
+        }
     }
 
     @Override
diff --git a/services/core/java/com/android/server/storage/CacheQuotaStrategy.java b/services/core/java/com/android/server/storage/CacheQuotaStrategy.java
index 82dd9ac..7a35bf7 100644
--- a/services/core/java/com/android/server/storage/CacheQuotaStrategy.java
+++ b/services/core/java/com/android/server/storage/CacheQuotaStrategy.java
@@ -177,7 +177,7 @@
             UserInfo info = users.get(i);
             List<UsageStats> stats =
                     mUsageStats.queryUsageStatsForUser(info.id, UsageStatsManager.INTERVAL_BEST,
-                            oneYearAgo, timeNow);
+                            oneYearAgo, timeNow, /*obfuscateInstantApps=*/ false);
             if (stats == null) {
                 continue;
             }
diff --git a/services/usage/java/com/android/server/usage/UsageStatsService.java b/services/usage/java/com/android/server/usage/UsageStatsService.java
index 4ba457d..0de3c7c 100644
--- a/services/usage/java/com/android/server/usage/UsageStatsService.java
+++ b/services/usage/java/com/android/server/usage/UsageStatsService.java
@@ -39,6 +39,7 @@
 import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
+import android.content.pm.PackageManagerInternal;
 import android.content.pm.PackageManager.NameNotFoundException;
 import android.content.pm.ParceledListSlice;
 import android.content.pm.UserInfo;
@@ -80,6 +81,7 @@
 import com.android.internal.util.ArrayUtils;
 import com.android.internal.util.DumpUtils;
 import com.android.internal.util.IndentingPrintWriter;
+import com.android.server.LocalServices;
 import com.android.server.SystemService;
 
 import java.io.File;
@@ -137,6 +139,7 @@
     AppOpsManager mAppOps;
     UserManager mUserManager;
     PackageManager mPackageManager;
+    PackageManagerInternal mPackageManagerInternal;
     AppWidgetManager mAppWidgetManager;
     IDeviceIdleController mDeviceIdleController;
     private DisplayManager mDisplayManager;
@@ -179,6 +182,7 @@
         mAppOps = (AppOpsManager) getContext().getSystemService(Context.APP_OPS_SERVICE);
         mUserManager = (UserManager) getContext().getSystemService(Context.USER_SERVICE);
         mPackageManager = getContext().getPackageManager();
+        mPackageManagerInternal = LocalServices.getService(PackageManagerInternal.class);
         mHandler = new H(BackgroundThread.get().getLooper());
 
         File systemDataDir = new File(Environment.getDataDirectory(), "system");
@@ -407,6 +411,10 @@
         }
     }
 
+    private boolean shouldObfuscateInstantAppsForCaller(int callingUid) {
+        return !mPackageManagerInternal.canAccessInstantApps(callingUid);
+    }
+
     void clearAppIdleForPackage(String packageName, int userId) {
         synchronized (mAppIdleLock) {
             mAppIdleHistory.clearUsage(packageName, userId);
@@ -704,6 +712,11 @@
             final long elapsedRealtime = SystemClock.elapsedRealtime();
             convertToSystemTimeLocked(event);
 
+            if (event.getPackageName() != null
+                    && mPackageManagerInternal.isPackageEphemeral(userId, event.getPackageName())) {
+                event.mFlags |= Event.FLAG_IS_PACKAGE_INSTANT_APP;
+            }
+
             final UserUsageStatsService service =
                     getUserDataAndInitializeIfNeededLocked(userId, timeNow);
             service.reportEvent(event);
@@ -807,7 +820,8 @@
     /**
      * Called by the Binder stub.
      */
-    List<UsageStats> queryUsageStats(int userId, int bucketType, long beginTime, long endTime) {
+    List<UsageStats> queryUsageStats(int userId, int bucketType, long beginTime, long endTime,
+            boolean obfuscateInstantApps) {
         synchronized (mLock) {
             final long timeNow = checkAndGetTimeLocked();
             if (!validRange(timeNow, beginTime, endTime)) {
@@ -816,7 +830,20 @@
 
             final UserUsageStatsService service =
                     getUserDataAndInitializeIfNeededLocked(userId, timeNow);
-            return service.queryUsageStats(bucketType, beginTime, endTime);
+            List<UsageStats> list = service.queryUsageStats(bucketType, beginTime, endTime);
+
+            // Mangle instant app names *using their current state (not whether they were ephemeral
+            // when the data was recorded)*.
+            if (obfuscateInstantApps) {
+                for (int i = list.size() - 1; i >= 0; i--) {
+                    final UsageStats stats = list.get(i);
+                    if (mPackageManagerInternal.isPackageEphemeral(userId, stats.mPackageName)) {
+                        list.set(i, stats.getObfuscatedForInstantApp());
+                    }
+                }
+            }
+
+            return list;
         }
     }
 
@@ -840,7 +867,8 @@
     /**
      * Called by the Binder stub.
      */
-    UsageEvents queryEvents(int userId, long beginTime, long endTime) {
+    UsageEvents queryEvents(int userId, long beginTime, long endTime,
+            boolean shouldObfuscateInstantApps) {
         synchronized (mLock) {
             final long timeNow = checkAndGetTimeLocked();
             if (!validRange(timeNow, beginTime, endTime)) {
@@ -849,7 +877,7 @@
 
             final UserUsageStatsService service =
                     getUserDataAndInitializeIfNeededLocked(userId, timeNow);
-            return service.queryEvents(beginTime, endTime);
+            return service.queryEvents(beginTime, endTime, shouldObfuscateInstantApps);
         }
     }
 
@@ -884,10 +912,15 @@
         }
     }
 
-    boolean isAppIdleFilteredOrParoled(String packageName, int userId, long elapsedRealtime) {
+    boolean isAppIdleFilteredOrParoled(String packageName, int userId, long elapsedRealtime,
+            boolean shouldObfuscateInstantApps) {
         if (isParoledOrCharging()) {
             return false;
         }
+        if (shouldObfuscateInstantApps &&
+                mPackageManagerInternal.isPackageEphemeral(userId, packageName)) {
+            return false;
+        }
         return isAppIdleFiltered(packageName, getAppId(packageName), userId, elapsedRealtime);
     }
 
@@ -1353,11 +1386,14 @@
                 return null;
             }
 
+            final boolean obfuscateInstantApps = shouldObfuscateInstantAppsForCaller(
+                    Binder.getCallingUid());
+
             final int userId = UserHandle.getCallingUserId();
             final long token = Binder.clearCallingIdentity();
             try {
                 final List<UsageStats> results = UsageStatsService.this.queryUsageStats(
-                        userId, bucketType, beginTime, endTime);
+                        userId, bucketType, beginTime, endTime, obfuscateInstantApps);
                 if (results != null) {
                     return new ParceledListSlice<>(results);
                 }
@@ -1395,10 +1431,14 @@
                 return null;
             }
 
+            final boolean obfuscateInstantApps = shouldObfuscateInstantAppsForCaller(
+                    Binder.getCallingUid());
+
             final int userId = UserHandle.getCallingUserId();
             final long token = Binder.clearCallingIdentity();
             try {
-                return UsageStatsService.this.queryEvents(userId, beginTime, endTime);
+                return UsageStatsService.this.queryEvents(userId, beginTime, endTime,
+                        obfuscateInstantApps);
             } finally {
                 Binder.restoreCallingIdentity(token);
             }
@@ -1412,10 +1452,12 @@
             } catch (RemoteException re) {
                 throw re.rethrowFromSystemServer();
             }
+            final boolean obfuscateInstantApps = shouldObfuscateInstantAppsForCaller(
+                    Binder.getCallingUid());
             final long token = Binder.clearCallingIdentity();
             try {
                 return UsageStatsService.this.isAppIdleFilteredOrParoled(packageName, userId,
-                        SystemClock.elapsedRealtime());
+                        SystemClock.elapsedRealtime(), obfuscateInstantApps);
             } finally {
                 Binder.restoreCallingIdentity(token);
             }
@@ -1647,9 +1689,10 @@
 
         @Override
         public List<UsageStats> queryUsageStatsForUser(
-                int userId, int intervalType, long beginTime, long endTime) {
+                int userId, int intervalType, long beginTime, long endTime,
+                boolean obfuscateInstantApps) {
             return UsageStatsService.this.queryUsageStats(
-                    userId, intervalType, beginTime, endTime);
+                    userId, intervalType, beginTime, endTime, obfuscateInstantApps);
         }
     }
 }
diff --git a/services/usage/java/com/android/server/usage/UsageStatsXmlV1.java b/services/usage/java/com/android/server/usage/UsageStatsXmlV1.java
index 96f3305..cc53a9c 100644
--- a/services/usage/java/com/android/server/usage/UsageStatsXmlV1.java
+++ b/services/usage/java/com/android/server/usage/UsageStatsXmlV1.java
@@ -26,7 +26,10 @@
 import android.app.usage.UsageEvents;
 import android.app.usage.UsageStats;
 import android.content.res.Configuration;
+import android.text.TextUtils;
 import android.util.ArrayMap;
+import android.util.Log;
+import android.util.LogWriter;
 
 import java.io.IOException;
 import java.net.ProtocolException;
@@ -35,6 +38,8 @@
  * UsageStats reader/writer for version 1 of the XML format.
  */
 final class UsageStatsXmlV1 {
+    private static final String TAG = "UsageStatsXmlV1";
+
     private static final String PACKAGES_TAG = "packages";
     private static final String PACKAGE_TAG = "package";
 
@@ -51,6 +56,7 @@
 
     // Attributes
     private static final String PACKAGE_ATTR = "package";
+    private static final String FLAGS_ATTR = "flags";
     private static final String CLASS_ATTR = "class";
     private static final String TOTAL_TIME_ACTIVE_ATTR = "timeActive";
     private static final String COUNT_ATTR = "count";
@@ -70,7 +76,6 @@
         if (pkg == null) {
             throw new ProtocolException("no " + PACKAGE_ATTR + " attribute present");
         }
-
         final UsageStats stats = statsOut.getOrCreateUsageStats(pkg);
 
         // Apply the offset to the beginTime to find the absolute time.
@@ -149,11 +154,12 @@
         if (packageName == null) {
             throw new ProtocolException("no " + PACKAGE_ATTR + " attribute present");
         }
-
         final String className = XmlUtils.readStringAttribute(parser, CLASS_ATTR);
 
         final UsageEvents.Event event = statsOut.buildEvent(packageName, className);
 
+        event.mFlags = XmlUtils.readIntAttribute(parser, FLAGS_ATTR, 0);
+
         // Apply the offset to the beginTime to find the absolute time of this event.
         event.mTimeStamp = statsOut.beginTime + XmlUtils.readLongAttribute(parser, TIME_ATTR);
 
@@ -256,6 +262,7 @@
         if (event.mClass != null) {
             XmlUtils.writeStringAttribute(xml, CLASS_ATTR, event.mClass);
         }
+        XmlUtils.writeIntAttribute(xml, FLAGS_ATTR, event.mFlags);
         XmlUtils.writeIntAttribute(xml, TYPE_ATTR, event.mEventType);
 
         switch (event.mEventType) {
diff --git a/services/usage/java/com/android/server/usage/UserUsageStatsService.java b/services/usage/java/com/android/server/usage/UserUsageStatsService.java
index 8d335a5..0abbb82 100644
--- a/services/usage/java/com/android/server/usage/UserUsageStatsService.java
+++ b/services/usage/java/com/android/server/usage/UserUsageStatsService.java
@@ -19,11 +19,8 @@
 import android.app.usage.ConfigurationStats;
 import android.app.usage.TimeSparseArray;
 import android.app.usage.UsageEvents;
-import android.app.usage.UsageEvents.Event;
 import android.app.usage.UsageStats;
 import android.app.usage.UsageStatsManager;
-import android.content.pm.PackageInfo;
-import android.content.pm.PackageManager;
 import android.content.res.Configuration;
 import android.os.SystemClock;
 import android.content.Context;
@@ -312,7 +309,8 @@
         return queryStats(bucketType, beginTime, endTime, sConfigStatsCombiner);
     }
 
-    UsageEvents queryEvents(final long beginTime, final long endTime) {
+    UsageEvents queryEvents(final long beginTime, final long endTime,
+            boolean obfuscateInstantApps) {
         final ArraySet<String> names = new ArraySet<>();
         List<UsageEvents.Event> results = queryStats(UsageStatsManager.INTERVAL_DAILY,
                 beginTime, endTime, new StatCombiner<UsageEvents.Event>() {
@@ -334,7 +332,10 @@
                                 return;
                             }
 
-                            final UsageEvents.Event event = stats.events.valueAt(i);
+                            UsageEvents.Event event = stats.events.valueAt(i);
+                            if (obfuscateInstantApps) {
+                                event = event.getObfuscatedIfInstantApp();
+                            }
                             names.add(event.mPackage);
                             if (event.mClass != null) {
                                 names.add(event.mClass);
@@ -586,6 +587,7 @@
             if (event.mShortcutId != null) {
                 pw.printPair("shortcutId", event.mShortcutId);
             }
+            pw.printHexPair("flags", event.mFlags);
             pw.println();
         }
         pw.decreaseIndent();
diff --git a/tests/UsageStatsTest/Android.mk b/tests/UsageStatsTest/Android.mk
index 5f7467a..6b5c999 100644
--- a/tests/UsageStatsTest/Android.mk
+++ b/tests/UsageStatsTest/Android.mk
@@ -8,6 +8,8 @@
 
 LOCAL_STATIC_JAVA_LIBRARIES := android-support-v4
 
+LOCAL_CERTIFICATE := platform
+
 LOCAL_PACKAGE_NAME := UsageStatsTest
 
 include $(BUILD_PACKAGE)
diff --git a/tests/UsageStatsTest/AndroidManifest.xml b/tests/UsageStatsTest/AndroidManifest.xml
index 589674a..c27be7b 100644
--- a/tests/UsageStatsTest/AndroidManifest.xml
+++ b/tests/UsageStatsTest/AndroidManifest.xml
@@ -1,7 +1,13 @@
 <?xml version="1.0" encoding="utf-8"?>
 
+<!--
+  Note: Add android:sharedUserId="android.uid.system" to the root element to simulate the system UID
+  caller case.
+-->
+
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.android.tests.usagestats">
+    package="com.android.tests.usagestats"
+    >
 
     <uses-permission android:name="android.permission.PACKAGE_USAGE_STATS" />
 
diff --git a/tests/UsageStatsTest/res/menu/main.xml b/tests/UsageStatsTest/res/menu/main.xml
index e781058..4ccbc81 100644
--- a/tests/UsageStatsTest/res/menu/main.xml
+++ b/tests/UsageStatsTest/res/menu/main.xml
@@ -2,4 +2,6 @@
 <menu xmlns:android="http://schemas.android.com/apk/res/android">
     <item android:id="@+id/log"
         android:title="View Log"/>
+    <item android:id="@+id/call_is_app_inactive"
+        android:title="Call isAppInactive()"/>
 </menu>
diff --git a/tests/UsageStatsTest/src/com/android/tests/usagestats/UsageStatsActivity.java b/tests/UsageStatsTest/src/com/android/tests/usagestats/UsageStatsActivity.java
index c08c1a3..9429d9b 100644
--- a/tests/UsageStatsTest/src/com/android/tests/usagestats/UsageStatsActivity.java
+++ b/tests/UsageStatsTest/src/com/android/tests/usagestats/UsageStatsActivity.java
@@ -16,12 +16,16 @@
 
 package com.android.tests.usagestats;
 
+import android.app.AlertDialog;
 import android.app.ListActivity;
 import android.app.usage.UsageStats;
 import android.app.usage.UsageStatsManager;
 import android.content.Context;
+import android.content.DialogInterface;
 import android.content.Intent;
 import android.os.Bundle;
+import android.text.InputType;
+import android.text.TextUtils;
 import android.text.format.DateUtils;
 import android.view.LayoutInflater;
 import android.view.Menu;
@@ -30,6 +34,7 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.BaseAdapter;
+import android.widget.EditText;
 import android.widget.TextView;
 
 import java.util.ArrayList;
@@ -69,6 +74,9 @@
             case R.id.log:
                 startActivity(new Intent(this, UsageLogActivity.class));
                 return true;
+            case R.id.call_is_app_inactive:
+                callIsAppInactive();
+                return true;
 
             default:
                 return super.onOptionsItemSelected(item);
@@ -81,6 +89,41 @@
         updateAdapter();
     }
 
+    private void callIsAppInactive() {
+        final AlertDialog.Builder builder = new AlertDialog.Builder(this);
+        builder.setTitle("Enter package name");
+        final EditText input = new EditText(this);
+        input.setInputType(InputType.TYPE_CLASS_TEXT);
+        input.setHint("com.android.tests.usagestats");
+        builder.setView(input);
+
+        builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
+            @Override
+            public void onClick(DialogInterface dialog, int which) {
+                final String packageName = input.getText().toString().trim();
+                if (!TextUtils.isEmpty(packageName)) {
+                    showInactive(packageName);
+                }
+            }
+        });
+        builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
+            @Override
+            public void onClick(DialogInterface dialog, int which) {
+                dialog.cancel();
+            }
+        });
+
+        builder.show();
+    }
+
+    private void showInactive(String packageName) {
+        final AlertDialog.Builder builder = new AlertDialog.Builder(this);
+        builder.setMessage(
+                "isAppInactive(\"" + packageName + "\") = "
+                        + (mUsageStatsManager.isAppInactive(packageName) ? "true" : "false"));
+        builder.show();
+    }
+
     private void updateAdapter() {
         long now = System.currentTimeMillis();
         long beginTime = now - USAGE_STATS_PERIOD;