Merge "Create a OnTunerEventListener"
diff --git a/api/current.txt b/api/current.txt
index 92a89e6..a307fa4 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -36228,6 +36228,7 @@
     method public boolean isUserUnlocked();
     method public boolean isUserUnlocked(android.os.UserHandle);
     method public boolean requestQuietModeEnabled(boolean, @NonNull android.os.UserHandle);
+    method public boolean requestQuietModeEnabled(boolean, @NonNull android.os.UserHandle, int);
     method @Deprecated public boolean setRestrictionsChallenge(String);
     method @Deprecated public void setUserRestriction(String, boolean);
     method @Deprecated public void setUserRestrictions(android.os.Bundle);
@@ -36289,6 +36290,7 @@
     field public static final String DISALLOW_USER_SWITCH = "no_user_switch";
     field public static final String ENSURE_VERIFY_APPS = "ensure_verify_apps";
     field public static final String KEY_RESTRICTIONS_PENDING = "restrictions_pending";
+    field public static final int QUIET_MODE_DISABLE_ONLY_IF_CREDENTIAL_NOT_REQUIRED = 1; // 0x1
     field public static final int USER_CREATION_FAILED_NOT_PERMITTED = 1; // 0x1
     field public static final int USER_CREATION_FAILED_NO_MORE_USERS = 2; // 0x2
     field public static final int USER_OPERATION_ERROR_CURRENT_USER = 4; // 0x4
diff --git a/api/system-current.txt b/api/system-current.txt
index 3ff6116..451d2ab 100755
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -661,6 +661,7 @@
     method @RequiresPermission(allOf={android.Manifest.permission.DUMP, android.Manifest.permission.PACKAGE_USAGE_STATS}) public long[] getRegisteredExperimentIds() throws android.app.StatsManager.StatsUnavailableException;
     method @RequiresPermission(allOf={android.Manifest.permission.DUMP, android.Manifest.permission.PACKAGE_USAGE_STATS}) public byte[] getReports(long) throws android.app.StatsManager.StatsUnavailableException;
     method @RequiresPermission(allOf={android.Manifest.permission.DUMP, android.Manifest.permission.PACKAGE_USAGE_STATS}) public byte[] getStatsMetadata() throws android.app.StatsManager.StatsUnavailableException;
+    method public void registerPullAtomCallback(int, @Nullable android.app.StatsManager.PullAtomMetadata, @NonNull java.util.concurrent.Executor, @NonNull android.app.StatsManager.StatsPullAtomCallback);
     method @RequiresPermission(allOf={android.Manifest.permission.DUMP, android.Manifest.permission.PACKAGE_USAGE_STATS}) public void removeConfig(long) throws android.app.StatsManager.StatsUnavailableException;
     method @Deprecated @RequiresPermission(allOf={android.Manifest.permission.DUMP, android.Manifest.permission.PACKAGE_USAGE_STATS}) public boolean removeConfiguration(long);
     method @NonNull @RequiresPermission(allOf={android.Manifest.permission.DUMP, android.Manifest.permission.PACKAGE_USAGE_STATS}) public long[] setActiveConfigsChangedOperation(@Nullable android.app.PendingIntent) throws android.app.StatsManager.StatsUnavailableException;
@@ -668,6 +669,7 @@
     method @Deprecated @RequiresPermission(allOf={android.Manifest.permission.DUMP, android.Manifest.permission.PACKAGE_USAGE_STATS}) public boolean setBroadcastSubscriber(long, long, android.app.PendingIntent);
     method @Deprecated @RequiresPermission(allOf={android.Manifest.permission.DUMP, android.Manifest.permission.PACKAGE_USAGE_STATS}) public boolean setDataFetchOperation(long, android.app.PendingIntent);
     method @RequiresPermission(allOf={android.Manifest.permission.DUMP, android.Manifest.permission.PACKAGE_USAGE_STATS}) public void setFetchReportsOperation(android.app.PendingIntent, long) throws android.app.StatsManager.StatsUnavailableException;
+    method public void unregisterPullAtomCallback(int);
     field public static final String ACTION_STATSD_STARTED = "android.app.action.STATSD_STARTED";
     field public static final String EXTRA_STATS_ACTIVE_CONFIG_KEYS = "android.app.extra.STATS_ACTIVE_CONFIG_KEYS";
     field public static final String EXTRA_STATS_BROADCAST_SUBSCRIBER_COOKIES = "android.app.extra.STATS_BROADCAST_SUBSCRIBER_COOKIES";
@@ -676,6 +678,23 @@
     field public static final String EXTRA_STATS_DIMENSIONS_VALUE = "android.app.extra.STATS_DIMENSIONS_VALUE";
     field public static final String EXTRA_STATS_SUBSCRIPTION_ID = "android.app.extra.STATS_SUBSCRIPTION_ID";
     field public static final String EXTRA_STATS_SUBSCRIPTION_RULE_ID = "android.app.extra.STATS_SUBSCRIPTION_RULE_ID";
+    field public static final int PULL_SKIP = 1; // 0x1
+    field public static final int PULL_SUCCESS = 0; // 0x0
+  }
+
+  public static class StatsManager.PullAtomMetadata {
+  }
+
+  public static class StatsManager.PullAtomMetadata.Builder {
+    ctor public StatsManager.PullAtomMetadata.Builder();
+    method @NonNull public android.app.StatsManager.PullAtomMetadata build();
+    method @NonNull public android.app.StatsManager.PullAtomMetadata.Builder setAdditiveFields(@NonNull int[]);
+    method @NonNull public android.app.StatsManager.PullAtomMetadata.Builder setCoolDownNs(long);
+    method @NonNull public android.app.StatsManager.PullAtomMetadata.Builder setTimeoutNs(long);
+  }
+
+  public static interface StatsManager.StatsPullAtomCallback {
+    method public int onPullAtom(int, @NonNull java.util.List<android.util.StatsEvent>);
   }
 
   public static class StatsManager.StatsUnavailableException extends android.util.AndroidException {
@@ -6219,6 +6238,7 @@
     method @RequiresPermission(android.Manifest.permission.WIFI_UPDATE_USABILITY_STATS_SCORE) public void addOnWifiUsabilityStatsListener(@NonNull java.util.concurrent.Executor, @NonNull android.net.wifi.WifiManager.OnWifiUsabilityStatsListener);
     method @RequiresPermission(android.Manifest.permission.NETWORK_SETTINGS) public void allowAutojoin(int, boolean);
     method @RequiresPermission(android.Manifest.permission.NETWORK_SETTINGS) public void allowAutojoinPasspoint(@NonNull String, boolean);
+    method @RequiresPermission(android.Manifest.permission.WIFI_UPDATE_USABILITY_STATS_SCORE) public void clearWifiConnectedNetworkScorer();
     method @RequiresPermission(anyOf={android.Manifest.permission.NETWORK_SETTINGS, android.Manifest.permission.NETWORK_SETUP_WIZARD, android.Manifest.permission.NETWORK_STACK}) public void connect(@NonNull android.net.wifi.WifiConfiguration, @Nullable android.net.wifi.WifiManager.ActionListener);
     method @RequiresPermission(anyOf={android.Manifest.permission.NETWORK_SETTINGS, android.Manifest.permission.NETWORK_SETUP_WIZARD, android.Manifest.permission.NETWORK_STACK}) public void connect(int, @Nullable android.net.wifi.WifiManager.ActionListener);
     method @Deprecated @RequiresPermission(anyOf={android.Manifest.permission.NETWORK_SETTINGS, android.Manifest.permission.NETWORK_SETUP_WIZARD, android.Manifest.permission.NETWORK_STACK}) public void disable(int, @Nullable android.net.wifi.WifiManager.ActionListener);
@@ -6263,6 +6283,7 @@
     method @RequiresPermission(android.Manifest.permission.NETWORK_SETTINGS) public void setMacRandomizationSettingPasspointEnabled(@NonNull String, boolean);
     method @RequiresPermission(android.Manifest.permission.NETWORK_SETTINGS) public boolean setSoftApConfiguration(@NonNull android.net.wifi.SoftApConfiguration);
     method @Deprecated @RequiresPermission(android.Manifest.permission.CHANGE_WIFI_STATE) public boolean setWifiApConfiguration(android.net.wifi.WifiConfiguration);
+    method @RequiresPermission(android.Manifest.permission.WIFI_UPDATE_USABILITY_STATS_SCORE) public boolean setWifiConnectedNetworkScorer(@NonNull java.util.concurrent.Executor, @NonNull android.net.wifi.WifiManager.WifiConnectedNetworkScorer);
     method @RequiresPermission(anyOf={android.Manifest.permission.NETWORK_SETTINGS, android.Manifest.permission.NETWORK_SETUP_WIZARD}) public void startEasyConnectAsConfiguratorInitiator(@NonNull String, int, int, @NonNull java.util.concurrent.Executor, @NonNull android.net.wifi.EasyConnectStatusCallback);
     method @RequiresPermission(anyOf={android.Manifest.permission.NETWORK_SETTINGS, android.Manifest.permission.NETWORK_SETUP_WIZARD}) public void startEasyConnectAsEnrolleeInitiator(@NonNull String, @NonNull java.util.concurrent.Executor, @NonNull android.net.wifi.EasyConnectStatusCallback);
     method @RequiresPermission(anyOf={android.Manifest.permission.NETWORK_SETTINGS, android.Manifest.permission.NETWORK_SETUP_WIZARD}) public void startLocalOnlyHotspot(@NonNull android.net.wifi.SoftApConfiguration, @Nullable java.util.concurrent.Executor, @Nullable android.net.wifi.WifiManager.LocalOnlyHotspotCallback);
@@ -6352,6 +6373,11 @@
     method public void onWifiUsabilityStats(int, boolean, @NonNull android.net.wifi.WifiUsabilityStatsEntry);
   }
 
+  public static interface WifiManager.ScoreChangeCallback {
+    method public void onStatusChange(int, boolean);
+    method public void onTriggerUpdateOfWifiUsabilityStats(int);
+  }
+
   public static interface WifiManager.SoftApCallback {
     method public default void onBlockedClientConnecting(@NonNull android.net.wifi.WifiClient, int);
     method public default void onCapabilityChanged(@NonNull android.net.wifi.SoftApCapability);
@@ -6368,6 +6394,12 @@
     field public static final int DATA_ACTIVITY_OUT = 2; // 0x2
   }
 
+  public static interface WifiManager.WifiConnectedNetworkScorer {
+    method public void setScoreChangeCallback(@NonNull android.net.wifi.WifiManager.ScoreChangeCallback);
+    method public void start(int);
+    method public void stop(int);
+  }
+
   public class WifiNetworkConnectionStatistics implements android.os.Parcelable {
     ctor public WifiNetworkConnectionStatistics(int, int);
     ctor public WifiNetworkConnectionStatistics();
diff --git a/core/java/android/app/INotificationManager.aidl b/core/java/android/app/INotificationManager.aidl
index 7af7a4a..f6014e5 100644
--- a/core/java/android/app/INotificationManager.aidl
+++ b/core/java/android/app/INotificationManager.aidl
@@ -95,7 +95,7 @@
     void updateNotificationChannelForPackage(String pkg, int uid, in NotificationChannel channel);
     NotificationChannel getNotificationChannel(String callingPkg, int userId, String pkg, String channelId);
     NotificationChannel getConversationNotificationChannel(String callingPkg, int userId, String pkg, String channelId, boolean returnParentIfNoConversationChannel, String conversationId);
-    void createConversationNotificationChannelForPackage(String pkg, int uid, in NotificationChannel parentChannel, String conversationId);
+    void createConversationNotificationChannelForPackage(String pkg, int uid, String triggeringKey, in NotificationChannel parentChannel, String conversationId);
     NotificationChannel getNotificationChannelForPackage(String pkg, int uid, String channelId, boolean includeDeleted);
     void deleteNotificationChannel(String pkg, String channelId);
     void deleteConversationNotificationChannels(String pkg, int uid, String conversationId);
diff --git a/core/java/android/app/StatsManager.java b/core/java/android/app/StatsManager.java
index dde6dda..0beceb0 100644
--- a/core/java/android/app/StatsManager.java
+++ b/core/java/android/app/StatsManager.java
@@ -18,11 +18,13 @@
 import static android.Manifest.permission.DUMP;
 import static android.Manifest.permission.PACKAGE_USAGE_STATS;
 
+import android.annotation.CallbackExecutor;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.RequiresPermission;
 import android.annotation.SystemApi;
 import android.content.Context;
+import android.os.Binder;
 import android.os.IBinder;
 import android.os.IPullAtomCallback;
 import android.os.IPullAtomResultReceiver;
@@ -108,13 +110,11 @@
     /**
      * Value indicating that this pull was successful and that the result should be used.
      *
-     * @hide
      **/
     public static final int PULL_SUCCESS = 0;
 
     /**
      * Value indicating that this pull was unsuccessful and that the result should not be used.
-     * @hide
      **/
     public static final int PULL_SKIP = 1;
 
@@ -512,6 +512,17 @@
 
 
     /**
+     * Temp registration for while the migration is in progress.
+     *
+     * @hide
+     */
+    public void registerPullAtomCallback(int atomTag, @Nullable PullAtomMetadata metadata,
+            @NonNull StatsPullAtomCallback callback,
+            @NonNull @CallbackExecutor Executor executor) {
+        registerPullAtomCallback(atomTag, metadata, executor, callback);
+    }
+
+    /**
      * Registers a callback for an atom when that atom is to be pulled. The stats service will
      * invoke pullData in the callback when the stats service determines that this atom needs to be
      * pulled.
@@ -520,18 +531,19 @@
      * @param metadata          Optional metadata specifying the timeout, cool down time, and
      *                          additive fields for mapping isolated to host uids.
      * @param callback          The callback to be invoked when the stats service pulls the atom.
-     * @param executor          The executor in which to run the callback
+     * @param executor          The executor in which to run the callback.
      *
-     * @hide
      */
     public void registerPullAtomCallback(int atomTag, @Nullable PullAtomMetadata metadata,
-            @NonNull StatsPullAtomCallback callback, @NonNull Executor executor) {
+            @NonNull @CallbackExecutor Executor executor,
+            @NonNull StatsPullAtomCallback callback) {
         long coolDownNs = metadata == null ? DEFAULT_COOL_DOWN_NS : metadata.mCoolDownNs;
         long timeoutNs = metadata == null ? DEFAULT_TIMEOUT_NS : metadata.mTimeoutNs;
         int[] additiveFields = metadata == null ? new int[0] : metadata.mAdditiveFields;
         if (additiveFields == null) {
             additiveFields = new int[0];
         }
+
         synchronized (sLock) {
             try {
                 IStatsManagerService service = getIStatsManagerServiceLocked();
@@ -551,7 +563,6 @@
      *
      * @param atomTag           The tag of the atom of which to unregister
      *
-     * @hide
      */
     public void unregisterPullAtomCallback(int atomTag) {
         synchronized (sLock) {
@@ -577,21 +588,26 @@
 
         @Override
         public void onPullAtom(int atomTag, IPullAtomResultReceiver resultReceiver) {
-            mExecutor.execute(() -> {
-                List<StatsEvent> data = new ArrayList<>();
-                int successInt = mCallback.onPullAtom(atomTag, data);
-                boolean success = successInt == PULL_SUCCESS;
-                StatsEventParcel[] parcels = new StatsEventParcel[data.size()];
-                for (int i = 0; i < data.size(); i++) {
-                    parcels[i] = new StatsEventParcel();
-                    parcels[i].buffer = data.get(i).getBytes();
-                }
-                try {
-                    resultReceiver.pullFinished(atomTag, success, parcels);
-                } catch (RemoteException e) {
-                    Slog.w(TAG, "StatsPullResultReceiver failed for tag " + mAtomId);
-                }
-            });
+            long token = Binder.clearCallingIdentity();
+            try {
+                mExecutor.execute(() -> {
+                    List<StatsEvent> data = new ArrayList<>();
+                    int successInt = mCallback.onPullAtom(atomTag, data);
+                    boolean success = successInt == PULL_SUCCESS;
+                    StatsEventParcel[] parcels = new StatsEventParcel[data.size()];
+                    for (int i = 0; i < data.size(); i++) {
+                        parcels[i] = new StatsEventParcel();
+                        parcels[i].buffer = data.get(i).getBytes();
+                    }
+                    try {
+                        resultReceiver.pullFinished(atomTag, success, parcels);
+                    } catch (RemoteException e) {
+                        Slog.w(TAG, "StatsPullResultReceiver failed for tag " + mAtomId);
+                    }
+                });
+            } finally {
+                Binder.restoreCallingIdentity(token);
+            }
         }
     }
 
@@ -599,7 +615,6 @@
      * Metadata required for registering a StatsPullAtomCallback.
      * All fields are optional, and defaults will be used for fields that are unspecified.
      *
-     * @hide
      */
     public static class PullAtomMetadata {
         private final long mCoolDownNs;
@@ -614,22 +629,27 @@
         }
 
         /**
-         * Returns a new PullAtomMetadata.Builder object for constructing PullAtomMetadata for
-         * StatsManager#registerPullAtomCallback
+         * Temp for while migrations are in progress.
+         *
+         * @hide
          */
         public static PullAtomMetadata.Builder newBuilder() {
             return new PullAtomMetadata.Builder();
         }
 
         /**
-         * Builder for PullAtomMetadata.
+         *  Builder for PullAtomMetadata.
          */
         public static class Builder {
             private long mCoolDownNs;
             private long mTimeoutNs;
             private int[] mAdditiveFields;
 
-            private Builder() {
+            /**
+             * Returns a new PullAtomMetadata.Builder object for constructing PullAtomMetadata for
+             * StatsManager#registerPullAtomCallback
+             */
+            public Builder() {
                 mCoolDownNs = DEFAULT_COOL_DOWN_NS;
                 mTimeoutNs = DEFAULT_TIMEOUT_NS;
                 mAdditiveFields = null;
@@ -662,7 +682,7 @@
              * will be combined when the non-additive fields are the same.
              */
             @NonNull
-            public Builder setAdditiveFields(int[] additiveFields) {
+            public Builder setAdditiveFields(@NonNull int[] additiveFields) {
                 mAdditiveFields = additiveFields;
                 return this;
             }
@@ -705,14 +725,13 @@
     /**
      * Callback interface for pulling atoms requested by the stats service.
      *
-     * @hide
      */
     public interface StatsPullAtomCallback {
         /**
          * Pull data for the specified atom tag, filling in the provided list of StatsEvent data.
          * @return {@link #PULL_SUCCESS} if the pull was successful, or {@link #PULL_SKIP} if not.
          */
-        int onPullAtom(int atomTag, List<StatsEvent> data);
+        int onPullAtom(int atomTag, @NonNull List<StatsEvent> data);
     }
 
     private class StatsdDeathRecipient implements IBinder.DeathRecipient {
diff --git a/core/java/android/content/Context.java b/core/java/android/content/Context.java
index 68acfc7..3df94a7 100644
--- a/core/java/android/content/Context.java
+++ b/core/java/android/content/Context.java
@@ -4051,6 +4051,7 @@
      * @hide
      */
     @SystemApi
+    @SuppressLint("ServiceName")
     public static final String WIFI_COND_SERVICE = "wificond";
 
     /**
diff --git a/core/java/android/os/IUserManager.aidl b/core/java/android/os/IUserManager.aidl
index edaaf81..33d6131 100644
--- a/core/java/android/os/IUserManager.aidl
+++ b/core/java/android/os/IUserManager.aidl
@@ -113,7 +113,7 @@
     boolean isUserRunning(int userId);
     boolean isUserNameSet(int userId);
     boolean hasRestrictedProfiles();
-    boolean requestQuietModeEnabled(String callingPackage, boolean enableQuietMode, int userId, in IntentSender target);
+    boolean requestQuietModeEnabled(String callingPackage, boolean enableQuietMode, int userId, in IntentSender target, int flags);
     String getUserName();
     long getUserStartRealtime();
     long getUserUnlockRealtime();
diff --git a/core/java/android/os/UserManager.java b/core/java/android/os/UserManager.java
index 2eaefca..12e843c 100644
--- a/core/java/android/os/UserManager.java
+++ b/core/java/android/os/UserManager.java
@@ -133,6 +133,22 @@
     public static final String USER_TYPE_SYSTEM_HEADLESS = "android.os.usertype.system.HEADLESS";
 
     /**
+     * Flag passed to {@link #requestQuietModeEnabled} to request disabling quiet mode only if
+     * there is no need to confirm the user credentials. If credentials are required to disable
+     * quiet mode, {@link #requestQuietModeEnabled} will do nothing and return {@code false}.
+     */
+    public static final int QUIET_MODE_DISABLE_ONLY_IF_CREDENTIAL_NOT_REQUIRED = 0x1;
+
+    /**
+     * List of flags available for the {@link #requestQuietModeEnabled} method.
+     * @hide
+     */
+    @Retention(RetentionPolicy.SOURCE)
+    @IntDef(flag = true, prefix = { "QUIET_MODE_" }, value = {
+            QUIET_MODE_DISABLE_ONLY_IF_CREDENTIAL_NOT_REQUIRED })
+    public @interface QuietModeFlag {}
+
+    /**
      * @hide
      * No user restriction.
      */
@@ -3216,6 +3232,25 @@
     }
 
     /**
+     * Perform the same operation as {@link #requestQuietModeEnabled(boolean, UserHandle)}, but
+     * with a flag to tweak the behavior of the request.
+     *
+     * @param enableQuietMode whether quiet mode should be enabled or disabled
+     * @param userHandle user handle of the profile
+     * @param flags Can be 0 or {@link #QUIET_MODE_DISABLE_ONLY_IF_CREDENTIAL_NOT_REQUIRED}.
+     * @return {@code false} if user's credential is needed in order to turn off quiet mode,
+     *         {@code true} otherwise
+     * @throws SecurityException if the caller is invalid
+     * @throws IllegalArgumentException if {@code userHandle} is not a managed profile
+     *
+     * @see #isQuietModeEnabled(UserHandle)
+     */
+    public boolean requestQuietModeEnabled(boolean enableQuietMode, @NonNull UserHandle userHandle,
+            @QuietModeFlag int flags) {
+        return requestQuietModeEnabled(enableQuietMode, userHandle, null, flags);
+    }
+
+    /**
      * Similar to {@link #requestQuietModeEnabled(boolean, UserHandle)}, except you can specify
      * a target to start when user is unlocked. If {@code target} is specified, caller must have
      * the {@link android.Manifest.permission#MANAGE_USERS} permission.
@@ -3225,9 +3260,23 @@
      */
     public boolean requestQuietModeEnabled(
             boolean enableQuietMode, @NonNull UserHandle userHandle, IntentSender target) {
+        return requestQuietModeEnabled(enableQuietMode, userHandle, target, 0);
+    }
+    /**
+     * Similar to {@link #requestQuietModeEnabled(boolean, UserHandle)}, except you can specify
+     * a target to start when user is unlocked. If {@code target} is specified, caller must have
+     * the {@link android.Manifest.permission#MANAGE_USERS} permission.
+     *
+     * @see {@link #requestQuietModeEnabled(boolean, UserHandle)}
+     * @hide
+     */
+    public boolean requestQuietModeEnabled(
+            boolean enableQuietMode, @NonNull UserHandle userHandle, IntentSender target,
+            int flags) {
         try {
             return mService.requestQuietModeEnabled(
-                    mContext.getPackageName(), enableQuietMode, userHandle.getIdentifier(), target);
+                    mContext.getPackageName(), enableQuietMode, userHandle.getIdentifier(), target,
+                    flags);
         } catch (RemoteException re) {
             throw re.rethrowFromSystemServer();
         }
diff --git a/core/java/android/service/notification/StatusBarNotification.java b/core/java/android/service/notification/StatusBarNotification.java
index 389040c..4f400a8 100644
--- a/core/java/android/service/notification/StatusBarNotification.java
+++ b/core/java/android/service/notification/StatusBarNotification.java
@@ -16,6 +16,9 @@
 
 package android.service.notification;
 
+import static android.app.NotificationChannel.PLACEHOLDER_CONVERSATION_ID;
+import static android.util.FeatureFlagUtils.*;
+
 import android.annotation.NonNull;
 import android.app.Notification;
 import android.app.NotificationManager;
@@ -29,6 +32,8 @@
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.os.UserHandle;
+import android.text.TextUtils;
+import android.util.FeatureFlagUtils;
 
 import com.android.internal.logging.nano.MetricsProto;
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
@@ -436,6 +441,19 @@
         return logMaker;
     }
 
+    /**
+     * @hide
+     */
+    public String getShortcutId(Context context) {
+        String conversationId = getNotification().getShortcutId();
+        if (isEnabled(context,  NOTIF_CONVO_BYPASS_SHORTCUT_REQ)
+                && getNotification().getNotificationStyle() == Notification.MessagingStyle.class
+                && TextUtils.isEmpty(conversationId)) {
+            conversationId = getId() + getTag() + PLACEHOLDER_CONVERSATION_ID;
+        }
+        return conversationId;
+    }
+
     private String getGroupLogTag() {
         return shortenTag(getGroup());
     }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/NotificationConversationInfo.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/NotificationConversationInfo.java
index 6d3f3f4..64bdd97 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/NotificationConversationInfo.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/NotificationConversationInfo.java
@@ -17,7 +17,6 @@
 package com.android.systemui.statusbar.notification.row;
 
 import static android.app.Notification.EXTRA_IS_GROUP_CONVERSATION;
-import static android.app.NotificationChannel.PLACEHOLDER_CONVERSATION_ID;
 import static android.app.NotificationManager.IMPORTANCE_DEFAULT;
 import static android.app.NotificationManager.IMPORTANCE_LOW;
 import static android.app.NotificationManager.IMPORTANCE_UNSPECIFIED;
@@ -103,7 +102,6 @@
     private NotificationEntry mEntry;
     private StatusBarNotification mSbn;
     private boolean mIsDeviceProvisioned;
-
     private int mStartingChannelImportance;
     private boolean mStartedAsBubble;
     private boolean mIsBubbleable;
@@ -212,11 +210,10 @@
         mLauncherApps = launcherApps;
         mConversationId = mNotificationChannel.getConversationId();
         if (TextUtils.isEmpty(mNotificationChannel.getConversationId())) {
-            mConversationId = mSbn.getNotification().getShortcutId();
+            mConversationId = mSbn.getShortcutId(mContext);
         }
-        // TODO: flag this when flag exists
         if (TextUtils.isEmpty(mConversationId)) {
-            mConversationId = mSbn.getId() + mSbn.getTag() + PLACEHOLDER_CONVERSATION_ID;
+            throw new IllegalArgumentException("Does not have required information");
         }
         // TODO: consider querying this earlier in the notification pipeline and passing it in
         LauncherApps.ShortcutQuery query = new LauncherApps.ShortcutQuery()
@@ -243,10 +240,9 @@
         // a custom channel
         if (TextUtils.isEmpty(mNotificationChannel.getConversationId())) {
             try {
-                // TODO: associate this key with this channel service side so the customization
-                // isn't forgotten on the next update
                 mINotificationManager.createConversationNotificationChannelForPackage(
-                        mPackageName, mAppUid, mNotificationChannel, mConversationId);
+                        mPackageName, mAppUid, mSbn.getKey(), mNotificationChannel,
+                        mConversationId);
                 mNotificationChannel = mINotificationManager.getConversationNotificationChannel(
                         mContext.getOpPackageName(), UserHandle.getUserId(mAppUid), mPackageName,
                         mNotificationChannel.getId(), false, mConversationId);
@@ -363,7 +359,6 @@
             image.setImageDrawable(mLauncherApps.getShortcutBadgedIconDrawable(mShortcutInfo,
                     mContext.getResources().getDisplayMetrics().densityDpi));
         } else {
-            // TODO: flag this behavior
             if (mSbn.getNotification().extras.getBoolean(EXTRA_IS_GROUP_CONVERSATION, false)) {
                 // TODO: maybe use a generic group icon, or a composite of recent senders
                 image.setImageDrawable(mPm.getDefaultActivityIcon());
@@ -391,7 +386,6 @@
         if (mShortcutInfo != null) {
             name.setText(mShortcutInfo.getShortLabel());
         } else {
-            // TODO: flag this behavior
             Bundle extras = mSbn.getNotification().extras;
             String nameString = extras.getString(Notification.EXTRA_CONVERSATION_TITLE);
             if (TextUtils.isEmpty(nameString)) {
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/row/NotificationConversationInfoTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/row/NotificationConversationInfoTest.java
index 61f0b26..9ae477e 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/row/NotificationConversationInfoTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/row/NotificationConversationInfoTest.java
@@ -797,7 +797,7 @@
                 null,
                 true);
         verify(mMockINotificationManager, times(1)).createConversationNotificationChannelForPackage(
-                anyString(), anyInt(), any(), eq(CONVERSATION_ID));
+                anyString(), anyInt(), anyString(), any(), eq(CONVERSATION_ID));
     }
 
     @Test
@@ -817,7 +817,7 @@
                 null,
                 true);
         verify(mMockINotificationManager, never()).createConversationNotificationChannelForPackage(
-                anyString(), anyInt(), any(), eq(CONVERSATION_ID));
+                anyString(), anyInt(), anyString(), any(), eq(CONVERSATION_ID));
     }
 
     @Test
diff --git a/services/core/java/com/android/server/notification/NotificationChannelExtractor.java b/services/core/java/com/android/server/notification/NotificationChannelExtractor.java
index eaf120e..0e14364 100644
--- a/services/core/java/com/android/server/notification/NotificationChannelExtractor.java
+++ b/services/core/java/com/android/server/notification/NotificationChannelExtractor.java
@@ -15,7 +15,10 @@
 */
 package com.android.server.notification;
 
+import android.app.Notification;
+import android.app.NotificationChannel;
 import android.content.Context;
+import android.util.FeatureFlagUtils;
 import android.util.Slog;
 
 /**
@@ -26,8 +29,10 @@
     private static final boolean DBG = false;
 
     private RankingConfig mConfig;
+    private Context mContext;
 
     public void initialize(Context ctx, NotificationUsageStats usageStats) {
+        mContext = ctx;
         if (DBG) Slog.d(TAG, "Initializing  " + getClass().getSimpleName() + ".");
     }
 
@@ -41,11 +46,11 @@
             if (DBG) Slog.d(TAG, "missing config");
             return null;
         }
-
-        record.updateNotificationChannel(mConfig.getConversationNotificationChannel(
+        NotificationChannel updatedChannel = mConfig.getConversationNotificationChannel(
                 record.sbn.getPackageName(),
                 record.sbn.getUid(), record.getChannel().getId(),
-                record.getNotification().getShortcutId(), true, false));
+                record.sbn.getShortcutId(mContext), true, false);
+        record.updateNotificationChannel(updatedChannel);
 
         return null;
     }
diff --git a/services/core/java/com/android/server/notification/NotificationManagerService.java b/services/core/java/com/android/server/notification/NotificationManagerService.java
index 1d49364..385d84a 100755
--- a/services/core/java/com/android/server/notification/NotificationManagerService.java
+++ b/services/core/java/com/android/server/notification/NotificationManagerService.java
@@ -208,6 +208,7 @@
 import android.util.ArrayMap;
 import android.util.ArraySet;
 import android.util.AtomicFile;
+import android.util.FeatureFlagUtils;
 import android.util.IntArray;
 import android.util.Log;
 import android.util.Pair;
@@ -3038,7 +3039,7 @@
 
         @Override
         public void createConversationNotificationChannelForPackage(String pkg, int uid,
-                NotificationChannel parentChannel, String conversationId) {
+                String triggeringKey, NotificationChannel parentChannel, String conversationId) {
             enforceSystemOrSystemUI("only system can call this");
             Preconditions.checkNotNull(parentChannel);
             Preconditions.checkNotNull(conversationId);
@@ -3049,6 +3050,8 @@
             conversationChannel.setConversationId(parentId, conversationId);
             createNotificationChannelsImpl(
                     pkg, uid, new ParceledListSlice(Arrays.asList(conversationChannel)));
+            mRankingHandler.requestSort();
+            handleSavePolicyFile();
         }
 
         @Override
@@ -5257,9 +5260,10 @@
         if (mIsTelevision && (new Notification.TvExtender(notification)).getChannelId() != null) {
             channelId = (new Notification.TvExtender(notification)).getChannelId();
         }
-        // TODO: flag this behavior
         String shortcutId = notification.getShortcutId();
-        if (shortcutId == null
+        if (FeatureFlagUtils.isEnabled(getContext(),
+                FeatureFlagUtils.NOTIF_CONVO_BYPASS_SHORTCUT_REQ)
+            && shortcutId == null
             && notification.getNotificationStyle() == Notification.MessagingStyle.class) {
             shortcutId = id + tag + NotificationChannel.PLACEHOLDER_CONVERSATION_ID;
         }
diff --git a/services/core/java/com/android/server/notification/PreferencesHelper.java b/services/core/java/com/android/server/notification/PreferencesHelper.java
index 185d75c..b0c1863 100644
--- a/services/core/java/com/android/server/notification/PreferencesHelper.java
+++ b/services/core/java/com/android/server/notification/PreferencesHelper.java
@@ -16,6 +16,7 @@
 
 package com.android.server.notification;
 
+import static android.app.NotificationChannel.PLACEHOLDER_CONVERSATION_ID;
 import static android.app.NotificationManager.IMPORTANCE_NONE;
 import static android.app.NotificationManager.IMPORTANCE_UNSPECIFIED;
 
@@ -40,6 +41,7 @@
 import android.text.TextUtils;
 import android.util.ArrayMap;
 import android.util.ArraySet;
+import android.util.FeatureFlagUtils;
 import android.util.Pair;
 import android.util.Slog;
 import android.util.SparseBooleanArray;
@@ -139,6 +141,8 @@
     private boolean mAreChannelsBypassingDnd;
     private boolean mHideSilentStatusBarIcons = DEFAULT_HIDE_SILENT_STATUS_BAR_ICONS;
 
+    private boolean mAllowInvalidShortcuts = false;
+
     private static final String BADGING_FORCED_TRUE = "force_badging_true_for_bug";
 
     // STOPSHIP (b/142218092) this should be removed before ship
@@ -164,6 +168,8 @@
         updateBadgingEnabled();
         updateBubblesEnabled();
         syncChannelsBypassingDnd(mContext.getUserId());
+        mAllowInvalidShortcuts = FeatureFlagUtils.isEnabled(mContext,
+                FeatureFlagUtils.NOTIF_CONVO_BYPASS_SHORTCUT_REQ);
     }
 
     public void readXml(XmlPullParser parser, boolean forRestore, int userId)
@@ -266,7 +272,14 @@
                                         }
                                         channel.setImportanceLockedByCriticalDeviceFunction(
                                                 r.defaultAppLockedImportance);
-                                        r.channels.put(id, channel);
+                                        boolean isInvalidShortcutChannel =
+                                                channel.getConversationId() != null &&
+                                                        channel.getConversationId().contains(
+                                                                PLACEHOLDER_CONVERSATION_ID);
+                                        if (mAllowInvalidShortcuts || (!mAllowInvalidShortcuts
+                                                && !isInvalidShortcutChannel)) {
+                                            r.channels.put(id, channel);
+                                        }
                                     }
                                 }
                                 // Delegate
diff --git a/services/core/java/com/android/server/pm/UserManagerService.java b/services/core/java/com/android/server/pm/UserManagerService.java
index 66a2b01..2a249d2 100644
--- a/services/core/java/com/android/server/pm/UserManagerService.java
+++ b/services/core/java/com/android/server/pm/UserManagerService.java
@@ -74,6 +74,7 @@
 import android.os.UserHandle;
 import android.os.UserManager;
 import android.os.UserManager.EnforcingUser;
+import android.os.UserManager.QuietModeFlag;
 import android.os.UserManagerInternal;
 import android.os.UserManagerInternal.UserRestrictionsListener;
 import android.os.storage.StorageManager;
@@ -914,7 +915,7 @@
 
     @Override
     public boolean requestQuietModeEnabled(@NonNull String callingPackage, boolean enableQuietMode,
-            @UserIdInt int userId, @Nullable IntentSender target) {
+            @UserIdInt int userId, @Nullable IntentSender target, @QuietModeFlag int flags) {
         Objects.requireNonNull(callingPackage);
 
         if (enableQuietMode && target != null) {
@@ -925,24 +926,24 @@
         ensureCanModifyQuietMode(callingPackage, Binder.getCallingUid(), userId, target != null);
         final long identity = Binder.clearCallingIdentity();
         try {
-            boolean result = false;
             if (enableQuietMode) {
                 setQuietModeEnabled(
                         userId, true /* enableQuietMode */, target, callingPackage);
-                result = true;
-            } else {
-                boolean needToShowConfirmCredential =
-                        mLockPatternUtils.isSecure(userId)
-                                && !StorageManager.isUserKeyUnlocked(userId);
-                if (needToShowConfirmCredential) {
-                    showConfirmCredentialToDisableQuietMode(userId, target);
-                } else {
-                    setQuietModeEnabled(
-                            userId, false /* enableQuietMode */, target, callingPackage);
-                    result = true;
-                }
+                return true;
             }
-            return result;
+            boolean needToShowConfirmCredential =
+                    mLockPatternUtils.isSecure(userId)
+                            && !StorageManager.isUserKeyUnlocked(userId);
+            if (needToShowConfirmCredential) {
+                if ((flags & UserManager.QUIET_MODE_DISABLE_ONLY_IF_CREDENTIAL_NOT_REQUIRED) != 0) {
+                    return false;
+                }
+                showConfirmCredentialToDisableQuietMode(userId, target);
+                return false;
+            }
+            setQuietModeEnabled(
+                    userId, false /* enableQuietMode */, target, callingPackage);
+            return true;
         } finally {
             Binder.restoreCallingIdentity(identity);
         }
diff --git a/services/core/java/com/android/server/stats/pull/StatsPullAtomService.java b/services/core/java/com/android/server/stats/pull/StatsPullAtomService.java
index 3bc860a..1e85688 100644
--- a/services/core/java/com/android/server/stats/pull/StatsPullAtomService.java
+++ b/services/core/java/com/android/server/stats/pull/StatsPullAtomService.java
@@ -173,7 +173,6 @@
 import java.util.UUID;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.Executor;
-import java.util.concurrent.Executors;
 import java.util.concurrent.ThreadLocalRandom;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.TimeoutException;
@@ -349,14 +348,14 @@
     }
     private void registerWifiBytesTransfer() {
         int tagId = StatsLog.WIFI_BYTES_TRANSFER;
-        PullAtomMetadata metadata = PullAtomMetadata.newBuilder()
+        PullAtomMetadata metadata = new PullAtomMetadata.Builder()
                 .setAdditiveFields(new int[] {2, 3, 4, 5})
                 .build();
         mStatsManager.registerPullAtomCallback(
                 tagId,
                 metadata,
-                (atomTag, data) -> pullWifiBytesTransfer(atomTag, data),
-                Executors.newSingleThreadExecutor()
+                BackgroundThread.getExecutor(),
+                (atomTag, data) -> pullWifiBytesTransfer(atomTag, data)
         );
     }
 
@@ -441,14 +440,14 @@
 
     private void registerWifiBytesTransferBackground() {
         int tagId = StatsLog.WIFI_BYTES_TRANSFER_BY_FG_BG;
-        PullAtomMetadata metadata = PullAtomMetadata.newBuilder()
+        PullAtomMetadata metadata = new PullAtomMetadata.Builder()
                 .setAdditiveFields(new int[] {3, 4, 5, 6})
                 .build();
         mStatsManager.registerPullAtomCallback(
                 tagId,
                 metadata,
-                (atomTag, data) -> pullWifiBytesTransferBackground(atomTag, data),
-                Executors.newSingleThreadExecutor()
+                BackgroundThread.getExecutor(),
+                (atomTag, data) -> pullWifiBytesTransferBackground(atomTag, data)
         );
     }
 
@@ -479,14 +478,14 @@
 
     private void registerMobileBytesTransfer() {
         int tagId = StatsLog.MOBILE_BYTES_TRANSFER;
-        PullAtomMetadata metadata = PullAtomMetadata.newBuilder()
+        PullAtomMetadata metadata = new PullAtomMetadata.Builder()
                 .setAdditiveFields(new int[] {2, 3, 4, 5})
                 .build();
         mStatsManager.registerPullAtomCallback(
                 tagId,
                 metadata,
-                (atomTag, data) -> pullMobileBytesTransfer(atomTag, data),
-                Executors.newSingleThreadExecutor()
+                BackgroundThread.getExecutor(),
+                (atomTag, data) -> pullMobileBytesTransfer(atomTag, data)
         );
     }
 
@@ -517,14 +516,14 @@
 
     private void registerMobileBytesTransferBackground() {
         int tagId = StatsLog.MOBILE_BYTES_TRANSFER_BY_FG_BG;
-        PullAtomMetadata metadata = PullAtomMetadata.newBuilder()
+        PullAtomMetadata metadata = new PullAtomMetadata.Builder()
                 .setAdditiveFields(new int[] {3, 4, 5, 6})
                 .build();
         mStatsManager.registerPullAtomCallback(
                 tagId,
                 metadata,
-                (atomTag, data) -> pullMobileBytesTransferBackground(atomTag, data),
-                Executors.newSingleThreadExecutor()
+                BackgroundThread.getExecutor(),
+                (atomTag, data) -> pullMobileBytesTransferBackground(atomTag, data)
         );
     }
 
@@ -555,14 +554,14 @@
 
     private void registerBluetoothBytesTransfer() {
         int tagId = StatsLog.BLUETOOTH_BYTES_TRANSFER;
-        PullAtomMetadata metadata = PullAtomMetadata.newBuilder()
+        PullAtomMetadata metadata = new PullAtomMetadata.Builder()
                 .setAdditiveFields(new int[] {2, 3})
                 .build();
         mStatsManager.registerPullAtomCallback(
                 tagId,
                 metadata,
-                (atomTag, data) -> pullBluetoothBytesTransfer(atomTag, data),
-                Executors.newSingleThreadExecutor()
+                BackgroundThread.getExecutor(),
+                (atomTag, data) -> pullBluetoothBytesTransfer(atomTag, data)
         );
     }
 
@@ -634,8 +633,8 @@
         mStatsManager.registerPullAtomCallback(
                 tagId,
                 /* PullAtomMetadata */ null,
-                (atomTag, data) -> pullKernelWakelock(atomTag, data),
-                Executors.newSingleThreadExecutor()
+                BackgroundThread.getExecutor(),
+                (atomTag, data) -> pullKernelWakelock(atomTag, data)
         );
     }
 
@@ -670,14 +669,14 @@
 
     private void registerCpuTimePerFreq() {
         int tagId = StatsLog.CPU_TIME_PER_FREQ;
-        PullAtomMetadata metadata = PullAtomMetadata.newBuilder()
+        PullAtomMetadata metadata = new PullAtomMetadata.Builder()
                 .setAdditiveFields(new int[] {3})
                 .build();
         mStatsManager.registerPullAtomCallback(
                 tagId,
                 metadata,
-                (atomTag, data) -> pullCpuTimePerFreq(atomTag, data),
-                Executors.newSingleThreadExecutor()
+                BackgroundThread.getExecutor(),
+                (atomTag, data) -> pullCpuTimePerFreq(atomTag, data)
         );
     }
 
@@ -701,14 +700,14 @@
 
     private void registerCpuTimePerUid() {
         int tagId = StatsLog.CPU_TIME_PER_UID;
-        PullAtomMetadata metadata = PullAtomMetadata.newBuilder()
+        PullAtomMetadata metadata = new PullAtomMetadata.Builder()
                 .setAdditiveFields(new int[] {2, 3})
                 .build();
         mStatsManager.registerPullAtomCallback(
                 tagId,
                 metadata,
-                (atomTag, data) -> pullCpuTimePerUid(atomTag, data),
-                Executors.newSingleThreadExecutor()
+                BackgroundThread.getExecutor(),
+                (atomTag, data) -> pullCpuTimePerUid(atomTag, data)
         );
     }
 
@@ -730,14 +729,14 @@
         // the throttling is 3sec, handled in
         // frameworks/base/core/java/com/android/internal/os/KernelCpuProcReader
         int tagId = StatsLog.CPU_TIME_PER_UID_FREQ;
-        PullAtomMetadata metadata = PullAtomMetadata.newBuilder()
+        PullAtomMetadata metadata = new PullAtomMetadata.Builder()
                 .setAdditiveFields(new int[] {4})
                 .build();
         mStatsManager.registerPullAtomCallback(
                 tagId,
                 metadata,
-                (atomTag, data) -> pullCpuTimeperUidFreq(atomTag, data),
-                Executors.newSingleThreadExecutor()
+                BackgroundThread.getExecutor(),
+                (atomTag, data) -> pullCpuTimeperUidFreq(atomTag, data)
         );
     }
 
@@ -762,14 +761,14 @@
         // the throttling is 3sec, handled in
         // frameworks/base/core/java/com/android/internal/os/KernelCpuProcReader
         int tagId = StatsLog.CPU_ACTIVE_TIME;
-        PullAtomMetadata metadata = PullAtomMetadata.newBuilder()
+        PullAtomMetadata metadata = new PullAtomMetadata.Builder()
                 .setAdditiveFields(new int[] {2})
                 .build();
         mStatsManager.registerPullAtomCallback(
                 tagId,
                 metadata,
-                (atomTag, data) -> pullCpuActiveTime(atomTag, data),
-                Executors.newSingleThreadExecutor()
+                BackgroundThread.getExecutor(),
+                (atomTag, data) -> pullCpuActiveTime(atomTag, data)
         );
     }
 
@@ -789,14 +788,14 @@
         // the throttling is 3sec, handled in
         // frameworks/base/core/java/com/android/internal/os/KernelCpuProcReader
         int tagId = StatsLog.CPU_CLUSTER_TIME;
-        PullAtomMetadata metadata = PullAtomMetadata.newBuilder()
+        PullAtomMetadata metadata = new PullAtomMetadata.Builder()
                 .setAdditiveFields(new int[] {3})
                 .build();
         mStatsManager.registerPullAtomCallback(
                 tagId,
                 metadata,
-                (atomTag, data) -> pullCpuClusterTime(atomTag, data),
-                Executors.newSingleThreadExecutor()
+                BackgroundThread.getExecutor(),
+                (atomTag, data) -> pullCpuClusterTime(atomTag, data)
         );
     }
 
@@ -913,8 +912,8 @@
         mStatsManager.registerPullAtomCallback(
                 tagId,
                 /* metadata */ null,
-                (atomTag, data) -> pullBluetoothActivityInfo(atomTag, data),
-                Executors.newSingleThreadExecutor()
+                BackgroundThread.getExecutor(),
+                (atomTag, data) -> pullBluetoothActivityInfo(atomTag, data)
         );
     }
 
@@ -949,8 +948,8 @@
         mStatsManager.registerPullAtomCallback(
                 tagId,
                 null, // use default PullAtomMetadata values
-                (atomTag, data) -> pullSystemUptime(atomTag, data),
-                Executors.newSingleThreadExecutor()
+                BackgroundThread.getExecutor(),
+                (atomTag, data) -> pullSystemUptime(atomTag, data)
         );
     }
 
@@ -1232,8 +1231,8 @@
         mStatsManager.registerPullAtomCallback(
                 tagId,
                 /* PullAtomMetadata */ null,
-                (atomTag, data) -> pullIonHeapSize(atomTag, data),
-                Executors.newSingleThreadExecutor()
+                BackgroundThread.getExecutor(),
+                (atomTag, data) -> pullIonHeapSize(atomTag, data)
         );
     }
 
@@ -1511,8 +1510,8 @@
         mStatsManager.registerPullAtomCallback(
                 tagId,
                 /* PullAtomMetadata */ null,
-                (atomTag, data) -> pullPowerProfile(atomTag, data),
-                Executors.newSingleThreadExecutor()
+                BackgroundThread.getExecutor(),
+                (atomTag, data) -> pullPowerProfile(atomTag, data)
         );
     }
 
@@ -1681,8 +1680,8 @@
         mStatsManager.registerPullAtomCallback(
                 tagId,
                 null, // use default PullAtomMetadata values
-                (atomTag, data) -> pullBuildInformation(atomTag, data),
-                BackgroundThread.getExecutor()
+                BackgroundThread.getExecutor(),
+                (atomTag, data) -> pullBuildInformation(atomTag, data)
         );
     }
 
diff --git a/services/java/com/android/server/SystemServer.java b/services/java/com/android/server/SystemServer.java
index 109a6fd..92bdba0 100644
--- a/services/java/com/android/server/SystemServer.java
+++ b/services/java/com/android/server/SystemServer.java
@@ -223,8 +223,14 @@
             "com.android.server.usb.UsbService$Lifecycle";
     private static final String MIDI_SERVICE_CLASS =
             "com.android.server.midi.MidiService$Lifecycle";
+    private static final String WIFI_APEX_SERVICE_JAR_PATH =
+            "/apex/com.android.wifi/javalib/wifi-service.jar";
     private static final String WIFI_SERVICE_CLASS =
             "com.android.server.wifi.WifiService";
+    private static final String WIFI_SCANNING_SERVICE_CLASS =
+            "com.android.server.wifi.scanner.WifiScanningService";
+    private static final String WIFI_RTT_SERVICE_CLASS =
+            "com.android.server.wifi.rtt.RttService";
     private static final String WIFI_AWARE_SERVICE_CLASS =
             "com.android.server.wifi.aware.WifiAwareService";
     private static final String WIFI_P2P_SERVICE_CLASS =
@@ -1426,33 +1432,36 @@
                     PackageManager.FEATURE_WIFI)) {
                 // Wifi Service must be started first for wifi-related services.
                 t.traceBegin("StartWifi");
-                mSystemServiceManager.startService(WIFI_SERVICE_CLASS);
+                mSystemServiceManager.startServiceFromJar(
+                        WIFI_SERVICE_CLASS, WIFI_APEX_SERVICE_JAR_PATH);
                 t.traceEnd();
                 t.traceBegin("StartWifiScanning");
-                mSystemServiceManager.startService(
-                        "com.android.server.wifi.scanner.WifiScanningService");
+                mSystemServiceManager.startServiceFromJar(
+                        WIFI_SCANNING_SERVICE_CLASS, WIFI_APEX_SERVICE_JAR_PATH);
                 t.traceEnd();
             }
 
             if (context.getPackageManager().hasSystemFeature(
                     PackageManager.FEATURE_WIFI_RTT)) {
                 t.traceBegin("StartRttService");
-                mSystemServiceManager.startService(
-                        "com.android.server.wifi.rtt.RttService");
+                mSystemServiceManager.startServiceFromJar(
+                        WIFI_RTT_SERVICE_CLASS, WIFI_APEX_SERVICE_JAR_PATH);
                 t.traceEnd();
             }
 
             if (context.getPackageManager().hasSystemFeature(
                     PackageManager.FEATURE_WIFI_AWARE)) {
                 t.traceBegin("StartWifiAware");
-                mSystemServiceManager.startService(WIFI_AWARE_SERVICE_CLASS);
+                mSystemServiceManager.startServiceFromJar(
+                        WIFI_AWARE_SERVICE_CLASS, WIFI_APEX_SERVICE_JAR_PATH);
                 t.traceEnd();
             }
 
             if (context.getPackageManager().hasSystemFeature(
                     PackageManager.FEATURE_WIFI_DIRECT)) {
                 t.traceBegin("StartWifiP2P");
-                mSystemServiceManager.startService(WIFI_P2P_SERVICE_CLASS);
+                mSystemServiceManager.startServiceFromJar(
+                        WIFI_P2P_SERVICE_CLASS, WIFI_APEX_SERVICE_JAR_PATH);
                 t.traceEnd();
             }
 
diff --git a/services/tests/uiservicestests/src/com/android/server/notification/NotificationChannelExtractorTest.java b/services/tests/uiservicestests/src/com/android/server/notification/NotificationChannelExtractorTest.java
index f5af3ec..d16c232a 100644
--- a/services/tests/uiservicestests/src/com/android/server/notification/NotificationChannelExtractorTest.java
+++ b/services/tests/uiservicestests/src/com/android/server/notification/NotificationChannelExtractorTest.java
@@ -18,6 +18,7 @@
 
 import static android.app.NotificationManager.IMPORTANCE_HIGH;
 import static android.app.NotificationManager.IMPORTANCE_LOW;
+import static android.util.FeatureFlagUtils.NOTIF_CONVO_BYPASS_SHORTCUT_REQ;
 
 import static junit.framework.Assert.assertEquals;
 import static junit.framework.Assert.assertNull;
@@ -30,6 +31,7 @@
 import android.app.Notification;
 import android.app.NotificationChannel;
 import android.os.UserHandle;
+import android.provider.Settings;
 import android.service.notification.StatusBarNotification;
 
 import com.android.server.UiServiceTestCase;
@@ -52,6 +54,7 @@
     public void testExtractsUpdatedChannel() {
         NotificationChannelExtractor extractor = new NotificationChannelExtractor();
         extractor.setConfig(mConfig);
+        extractor.initialize(mContext, null);
 
         NotificationChannel channel = new NotificationChannel("a", "a", IMPORTANCE_LOW);
         final Notification.Builder builder = new Notification.Builder(getContext())
@@ -71,4 +74,62 @@
         assertNull(extractor.process(r));
         assertEquals(updatedChannel, r.getChannel());
     }
+
+    @Test
+    public void testInvalidShortcutFlagEnabled_looksUpCorrectChannel() {
+        Settings.Global.putString(
+                mContext.getContentResolver(), NOTIF_CONVO_BYPASS_SHORTCUT_REQ, "true");
+
+        NotificationChannelExtractor extractor = new NotificationChannelExtractor();
+        extractor.setConfig(mConfig);
+        extractor.initialize(mContext, null);
+
+        NotificationChannel channel = new NotificationChannel("a", "a", IMPORTANCE_LOW);
+        final Notification.Builder builder = new Notification.Builder(getContext())
+                .setContentTitle("foo")
+                .setStyle(new Notification.MessagingStyle("name"))
+                .setSmallIcon(android.R.drawable.sym_def_app_icon);
+        Notification n = builder.build();
+        StatusBarNotification sbn = new StatusBarNotification("", "", 0, "tag", 0,
+                0, n, UserHandle.ALL, null, System.currentTimeMillis());
+        NotificationRecord r = new NotificationRecord(getContext(), sbn, channel);
+
+        NotificationChannel updatedChannel =
+                new NotificationChannel("a", "", IMPORTANCE_HIGH);
+        when(mConfig.getConversationNotificationChannel(
+                any(), anyInt(), eq("a"), eq(r.sbn.getShortcutId(mContext)), eq(true), eq(false)))
+                .thenReturn(updatedChannel);
+
+        assertNull(extractor.process(r));
+        assertEquals(updatedChannel, r.getChannel());
+    }
+
+    @Test
+    public void testInvalidShortcutFlagDisabled_looksUpCorrectChannel() {
+        Settings.Global.putString(
+                mContext.getContentResolver(), NOTIF_CONVO_BYPASS_SHORTCUT_REQ, "false");
+
+        NotificationChannelExtractor extractor = new NotificationChannelExtractor();
+        extractor.setConfig(mConfig);
+        extractor.initialize(mContext, null);
+
+        NotificationChannel channel = new NotificationChannel("a", "a", IMPORTANCE_LOW);
+        final Notification.Builder builder = new Notification.Builder(getContext())
+                .setContentTitle("foo")
+                .setStyle(new Notification.MessagingStyle("name"))
+                .setSmallIcon(android.R.drawable.sym_def_app_icon);
+        Notification n = builder.build();
+        StatusBarNotification sbn = new StatusBarNotification("", "", 0, "tag", 0,
+                0, n, UserHandle.ALL, null, System.currentTimeMillis());
+        NotificationRecord r = new NotificationRecord(getContext(), sbn, channel);
+
+        NotificationChannel updatedChannel =
+                new NotificationChannel("a", "", IMPORTANCE_HIGH);
+        when(mConfig.getConversationNotificationChannel(
+                any(), anyInt(), eq("a"), eq(null), eq(true), eq(false)))
+                .thenReturn(updatedChannel);
+
+        assertNull(extractor.process(r));
+        assertEquals(updatedChannel, r.getChannel());
+    }
 }
diff --git a/services/tests/uiservicestests/src/com/android/server/notification/NotificationManagerServiceTest.java b/services/tests/uiservicestests/src/com/android/server/notification/NotificationManagerServiceTest.java
index 2ac4642..c6c64c9 100755
--- a/services/tests/uiservicestests/src/com/android/server/notification/NotificationManagerServiceTest.java
+++ b/services/tests/uiservicestests/src/com/android/server/notification/NotificationManagerServiceTest.java
@@ -5834,7 +5834,8 @@
         mBinderService.createNotificationChannels(PKG, new ParceledListSlice(Arrays.asList(
                 orig)));
 
-        mBinderService.createConversationNotificationChannelForPackage(PKG, mUid, orig, "friend");
+        mBinderService.createConversationNotificationChannelForPackage(
+                PKG, mUid, "key", orig, "friend");
 
         NotificationChannel friendChannel = mBinderService.getConversationNotificationChannel(
                 PKG, 0, PKG, original.getId(), false, "friend");
@@ -5869,9 +5870,10 @@
         String conversationId = "friend";
 
         mBinderService.createConversationNotificationChannelForPackage(
-                PKG, mUid, NotificationChannel.CREATOR.createFromParcel(msgParcel), conversationId);
+                PKG, mUid, "key", NotificationChannel.CREATOR.createFromParcel(msgParcel),
+                conversationId);
         mBinderService.createConversationNotificationChannelForPackage(
-                PKG, mUid, NotificationChannel.CREATOR.createFromParcel(callParcel),
+                PKG, mUid, "key", NotificationChannel.CREATOR.createFromParcel(callParcel),
                 conversationId);
 
         NotificationChannel messagesChild = mBinderService.getConversationNotificationChannel(
diff --git a/services/tests/uiservicestests/src/com/android/server/notification/PreferencesHelperTest.java b/services/tests/uiservicestests/src/com/android/server/notification/PreferencesHelperTest.java
index 6f16574..c1c74da 100644
--- a/services/tests/uiservicestests/src/com/android/server/notification/PreferencesHelperTest.java
+++ b/services/tests/uiservicestests/src/com/android/server/notification/PreferencesHelperTest.java
@@ -22,6 +22,7 @@
 import static android.app.NotificationManager.IMPORTANCE_MAX;
 import static android.app.NotificationManager.IMPORTANCE_NONE;
 import static android.app.NotificationManager.IMPORTANCE_UNSPECIFIED;
+import static android.util.FeatureFlagUtils.NOTIF_CONVO_BYPASS_SHORTCUT_REQ;
 
 import static com.android.server.notification.PreferencesHelper.NOTIFICATION_CHANNEL_COUNT_LIMIT;
 
@@ -2858,4 +2859,84 @@
             // good
         }
     }
+
+    @Test
+    public void testPlaceholderConversationId_flagOn() throws Exception {
+        Settings.Global.putString(
+                mContext.getContentResolver(), NOTIF_CONVO_BYPASS_SHORTCUT_REQ, "true");
+        mHelper = new PreferencesHelper(getContext(), mPm, mHandler, mMockZenModeHelper);
+
+        final String xml = "<ranking version=\"1\">\n"
+                + "<package name=\"" + PKG_O + "\" uid=\"" + UID_O + "\" >\n"
+                + "<channel id=\"id\" name=\"hi\" importance=\"3\" conv_id=\"foo:placeholder_id\"/>"
+                + "</package>"
+                + "</ranking>";
+        XmlPullParser parser = Xml.newPullParser();
+        parser.setInput(new BufferedInputStream(new ByteArrayInputStream(xml.getBytes())),
+                null);
+        parser.nextTag();
+        mHelper.readXml(parser, false, UserHandle.USER_ALL);
+
+        assertNotNull(mHelper.getNotificationChannel(PKG_O, UID_O, "id", true));
+    }
+
+    @Test
+    public void testPlaceholderConversationId_flagOff() throws Exception {
+        Settings.Global.putString(
+                mContext.getContentResolver(), NOTIF_CONVO_BYPASS_SHORTCUT_REQ, "false");
+        mHelper = new PreferencesHelper(getContext(), mPm, mHandler, mMockZenModeHelper);
+
+        final String xml = "<ranking version=\"1\">\n"
+                + "<package name=\"" + PKG_O + "\" uid=\"" + UID_O + "\" >\n"
+                + "<channel id=\"id\" name=\"hi\" importance=\"3\" conv_id=\"foo:placeholder_id\"/>"
+                + "</package>"
+                + "</ranking>";
+        XmlPullParser parser = Xml.newPullParser();
+        parser.setInput(new BufferedInputStream(new ByteArrayInputStream(xml.getBytes())),
+                null);
+        parser.nextTag();
+        mHelper.readXml(parser, false, UserHandle.USER_ALL);
+
+        assertNull(mHelper.getNotificationChannel(PKG_O, UID_O, "id", true));
+    }
+
+    @Test
+    public void testNormalConversationId_flagOff() throws Exception {
+        Settings.Global.putString(
+                mContext.getContentResolver(), NOTIF_CONVO_BYPASS_SHORTCUT_REQ, "false");
+        mHelper = new PreferencesHelper(getContext(), mPm, mHandler, mMockZenModeHelper);
+
+        final String xml = "<ranking version=\"1\">\n"
+                + "<package name=\"" + PKG_O + "\" uid=\"" + UID_O + "\" >\n"
+                + "<channel id=\"id\" name=\"hi\" importance=\"3\" conv_id=\"other\"/>"
+                + "</package>"
+                + "</ranking>";
+        XmlPullParser parser = Xml.newPullParser();
+        parser.setInput(new BufferedInputStream(new ByteArrayInputStream(xml.getBytes())),
+                null);
+        parser.nextTag();
+        mHelper.readXml(parser, false, UserHandle.USER_ALL);
+
+        assertNotNull(mHelper.getNotificationChannel(PKG_O, UID_O, "id", true));
+    }
+
+    @Test
+    public void testNoConversationId_flagOff() throws Exception {
+        Settings.Global.putString(
+                mContext.getContentResolver(), NOTIF_CONVO_BYPASS_SHORTCUT_REQ, "false");
+        mHelper = new PreferencesHelper(getContext(), mPm, mHandler, mMockZenModeHelper);
+
+        final String xml = "<ranking version=\"1\">\n"
+                + "<package name=\"" + PKG_O + "\" uid=\"" + UID_O + "\" >\n"
+                + "<channel id=\"id\" name=\"hi\" importance=\"3\"/>"
+                + "</package>"
+                + "</ranking>";
+        XmlPullParser parser = Xml.newPullParser();
+        parser.setInput(new BufferedInputStream(new ByteArrayInputStream(xml.getBytes())),
+                null);
+        parser.nextTag();
+        mHelper.readXml(parser, false, UserHandle.USER_ALL);
+
+        assertNotNull(mHelper.getNotificationChannel(PKG_O, UID_O, "id", true));
+    }
 }
diff --git a/wifi/java/android/net/wifi/IScoreChangeCallback.aidl b/wifi/java/android/net/wifi/IScoreChangeCallback.aidl
new file mode 100644
index 0000000..fd23610
--- /dev/null
+++ b/wifi/java/android/net/wifi/IScoreChangeCallback.aidl
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.net.wifi;
+
+/**
+ * Interface for Wi-Fi network score callback.
+ *
+ * @hide
+ */
+oneway interface IScoreChangeCallback
+{
+    void onStatusChange(int sessionId, boolean exiting);
+
+    void onTriggerUpdateOfWifiUsabilityStats(int sessionId);
+}
diff --git a/wifi/java/android/net/wifi/IWifiConnectedNetworkScorer.aidl b/wifi/java/android/net/wifi/IWifiConnectedNetworkScorer.aidl
new file mode 100644
index 0000000..d9a3b01
--- /dev/null
+++ b/wifi/java/android/net/wifi/IWifiConnectedNetworkScorer.aidl
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.net.wifi;
+
+import android.net.wifi.IScoreChangeCallback;
+
+/**
+ * Interface for Wi-Fi connected network scorer.
+ *
+ * @hide
+ */
+oneway interface IWifiConnectedNetworkScorer
+{
+    void start(int sessionId);
+
+    void stop(int sessionId);
+
+    void setScoreChangeCallback(IScoreChangeCallback cbImpl);
+}
diff --git a/wifi/java/android/net/wifi/IWifiManager.aidl b/wifi/java/android/net/wifi/IWifiManager.aidl
index 67f1663..5a98ac8 100644
--- a/wifi/java/android/net/wifi/IWifiManager.aidl
+++ b/wifi/java/android/net/wifi/IWifiManager.aidl
@@ -35,6 +35,7 @@
 import android.net.wifi.ISuggestionConnectionStatusListener;
 import android.net.wifi.ITrafficStateCallback;
 import android.net.wifi.ITxPacketCountListener;
+import android.net.wifi.IWifiConnectedNetworkScorer;
 import android.net.wifi.ScanResult;
 import android.net.wifi.SoftApConfiguration;
 import android.net.wifi.WifiConfiguration;
@@ -254,4 +255,8 @@
     int calculateSignalLevel(int rssi);
 
     List<WifiConfiguration> getWifiConfigForMatchedNetworkSuggestionsSharedWithUser(in List<ScanResult> scanResults);
+
+    boolean setWifiConnectedNetworkScorer(in IBinder binder, in IWifiConnectedNetworkScorer scorer);
+
+    void clearWifiConnectedNetworkScorer();
 }
diff --git a/wifi/java/android/net/wifi/WifiManager.java b/wifi/java/android/net/wifi/WifiManager.java
index ec3de43..64d4eaf 100644
--- a/wifi/java/android/net/wifi/WifiManager.java
+++ b/wifi/java/android/net/wifi/WifiManager.java
@@ -5806,4 +5806,186 @@
             return new SparseArray<>();
         }
     }
+
+    /**
+     * Callback interface for framework to receive network status changes and trigger of updating
+     * {@link WifiUsabilityStatsEntry}.
+     *
+     * @hide
+     */
+    @SystemApi
+    public interface ScoreChangeCallback {
+        /**
+         * Called by applications to indicate network status.
+         *
+         * @param sessionId The ID to indicate current Wi-Fi network connection obtained from
+         *                  {@link WifiConnectedNetworkScorer#start(int)}.
+         * @param isUsable The bit to indicate whether current Wi-Fi network is usable or not.
+         *                 Populated by connected network scorer in applications.
+         */
+        void onStatusChange(int sessionId, boolean isUsable);
+
+        /**
+         * Called by applications to trigger an update of {@link WifiUsabilityStatsEntry}.
+         * To receive update applications need to add WifiUsabilityStatsEntry listener. See
+         * {@link addOnWifiUsabilityStatsListener(Executor, OnWifiUsabilityStatsListener)}.
+         *
+         * @param sessionId The ID to indicate current Wi-Fi network connection obtained from
+         *                  {@link WifiConnectedNetworkScorer#start(int)}.
+         */
+        void onTriggerUpdateOfWifiUsabilityStats(int sessionId);
+    }
+
+    /**
+     * Callback proxy for {@link ScoreChangeCallback} objects.
+     *
+     * @hide
+     */
+    private class ScoreChangeCallbackProxy implements ScoreChangeCallback {
+        private final IScoreChangeCallback mScoreChangeCallback;
+
+        private ScoreChangeCallbackProxy(IScoreChangeCallback callback) {
+            mScoreChangeCallback = callback;
+        }
+
+        @Override
+        public void onStatusChange(int sessionId, boolean isUsable) {
+            try {
+                mScoreChangeCallback.onStatusChange(sessionId, isUsable);
+            } catch (RemoteException e) {
+                throw e.rethrowFromSystemServer();
+            }
+        }
+
+        @Override
+        public void onTriggerUpdateOfWifiUsabilityStats(int sessionId) {
+            try {
+                mScoreChangeCallback.onTriggerUpdateOfWifiUsabilityStats(sessionId);
+            } catch (RemoteException e) {
+                throw e.rethrowFromSystemServer();
+            }
+        }
+    }
+
+    /**
+     * Interface for Wi-Fi connected network scorer. Should be implemented by applications and set
+     * when calling
+     * {@link WifiManager#setWifiConnectedNetworkScorer(Executor, WifiConnectedNetworkScorer)}.
+     *
+     * @hide
+     */
+    @SystemApi
+    public interface WifiConnectedNetworkScorer {
+        /**
+         * Called by framework to indicate the start of a network connection.
+         * @param sessionId The ID to indicate current Wi-Fi network connection.
+         */
+        void start(int sessionId);
+
+        /**
+         * Called by framework to indicate the end of a network connection.
+         * @param sessionId The ID to indicate current Wi-Fi network connection obtained from
+         *                  {@link WifiConnectedNetworkScorer#start(int)}.
+         */
+        void stop(int sessionId);
+
+        /**
+         * Framework sets callback for score change events after application sets its scorer.
+         * @param cbImpl The instance for {@link WifiManager#ScoreChangeCallback}. Should be
+         * implemented and instantiated by framework.
+         */
+        void setScoreChangeCallback(@NonNull ScoreChangeCallback cbImpl);
+    }
+
+    /**
+     * Callback proxy for {@link WifiConnectedNetworkScorer} objects.
+     *
+     * @hide
+     */
+    private class WifiConnectedNetworkScorerProxy extends IWifiConnectedNetworkScorer.Stub {
+        private Executor mExecutor;
+        private WifiConnectedNetworkScorer mScorer;
+
+        WifiConnectedNetworkScorerProxy(Executor executor, WifiConnectedNetworkScorer scorer) {
+            mExecutor = executor;
+            mScorer = scorer;
+        }
+
+        @Override
+        public void start(int sessionId) {
+            if (mVerboseLoggingEnabled) {
+                Log.v(TAG, "WifiConnectedNetworkScorer: " + "start: sessionId=" + sessionId);
+            }
+            Binder.clearCallingIdentity();
+            mExecutor.execute(() -> mScorer.start(sessionId));
+        }
+
+        @Override
+        public void stop(int sessionId) {
+            if (mVerboseLoggingEnabled) {
+                Log.v(TAG, "WifiConnectedNetworkScorer: " + "stop: sessionId=" + sessionId);
+            }
+            Binder.clearCallingIdentity();
+            mExecutor.execute(() -> mScorer.stop(sessionId));
+        }
+
+        @Override
+        public void setScoreChangeCallback(IScoreChangeCallback cbImpl) {
+            if (mVerboseLoggingEnabled) {
+                Log.v(TAG, "WifiConnectedNetworkScorer: "
+                        + "setScoreChangeCallback: cbImpl=" + cbImpl);
+            }
+            Binder.clearCallingIdentity();
+            mExecutor.execute(() -> mScorer.setScoreChangeCallback(
+                    new ScoreChangeCallbackProxy(cbImpl)));
+        }
+    }
+
+    /**
+     * Set a callback for Wi-Fi connected network scorer.  See {@link WifiConnectedNetworkScorer}.
+     * Only a single scorer can be set. Caller will be invoked periodically by framework to inform
+     * client about start and stop of Wi-Fi connection. Caller can clear a previously set scorer
+     * using {@link clearWifiConnectedNetworkScorer()}.
+     *
+     * @param executor The executor on which callback will be invoked.
+     * @param scorer Scorer for Wi-Fi network implemented by application.
+     * @return true Scorer is set successfully.
+     *
+     * @hide
+     */
+    @SystemApi
+    @RequiresPermission(android.Manifest.permission.WIFI_UPDATE_USABILITY_STATS_SCORE)
+    public boolean setWifiConnectedNetworkScorer(@NonNull @CallbackExecutor Executor executor,
+            @NonNull WifiConnectedNetworkScorer scorer) {
+        if (executor == null) throw new IllegalArgumentException("executor cannot be null");
+        if (scorer == null) throw new IllegalArgumentException("scorer cannot be null");
+        if (mVerboseLoggingEnabled) {
+            Log.v(TAG, "setWifiConnectedNetworkScorer: scorer=" + scorer);
+        }
+        try {
+            return mService.setWifiConnectedNetworkScorer(new Binder(),
+                    new WifiConnectedNetworkScorerProxy(executor, scorer));
+        } catch (RemoteException e) {
+            throw e.rethrowFromSystemServer();
+        }
+    }
+
+    /**
+     * Allow caller to clear a previously set scorer. After calling this method,
+     * client will no longer receive information about start and stop of Wi-Fi connection.
+     *
+     * @hide
+     */
+    @SystemApi
+    @RequiresPermission(android.Manifest.permission.WIFI_UPDATE_USABILITY_STATS_SCORE)
+    public void clearWifiConnectedNetworkScorer() {
+        if (mVerboseLoggingEnabled) {
+            Log.v(TAG, "clearWifiConnectedNetworkScorer");
+        }
+        try {
+            mService.clearWifiConnectedNetworkScorer();
+        } catch (RemoteException e) {
+            throw e.rethrowFromSystemServer();
+        }
+    }
 }
diff --git a/wifi/java/com/android/server/wifi/BaseWifiService.java b/wifi/java/com/android/server/wifi/BaseWifiService.java
index 1cf3825..08822e2 100644
--- a/wifi/java/com/android/server/wifi/BaseWifiService.java
+++ b/wifi/java/com/android/server/wifi/BaseWifiService.java
@@ -32,6 +32,7 @@
 import android.net.wifi.ISuggestionConnectionStatusListener;
 import android.net.wifi.ITrafficStateCallback;
 import android.net.wifi.ITxPacketCountListener;
+import android.net.wifi.IWifiConnectedNetworkScorer;
 import android.net.wifi.IWifiManager;
 import android.net.wifi.ScanResult;
 import android.net.wifi.SoftApConfiguration;
@@ -600,4 +601,15 @@
             List<ScanResult> scanResults) {
         throw new UnsupportedOperationException();
     }
+
+    @Override
+    public boolean setWifiConnectedNetworkScorer(IBinder binder,
+            IWifiConnectedNetworkScorer scorer) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void clearWifiConnectedNetworkScorer() {
+        throw new UnsupportedOperationException();
+    }
 }
diff --git a/wifi/tests/src/android/net/wifi/WifiManagerTest.java b/wifi/tests/src/android/net/wifi/WifiManagerTest.java
index 983ac82..1ee5374 100644
--- a/wifi/tests/src/android/net/wifi/WifiManagerTest.java
+++ b/wifi/tests/src/android/net/wifi/WifiManagerTest.java
@@ -82,6 +82,7 @@
 import android.net.wifi.WifiManager.SoftApCallback;
 import android.net.wifi.WifiManager.SuggestionConnectionStatusListener;
 import android.net.wifi.WifiManager.TrafficStateCallback;
+import android.net.wifi.WifiManager.WifiConnectedNetworkScorer;
 import android.os.Binder;
 import android.os.Build;
 import android.os.Handler;
@@ -138,6 +139,7 @@
     @Mock Executor mExecutor;
     @Mock Executor mAnotherExecutor;
     @Mock ActivityManager mActivityManager;
+    @Mock WifiConnectedNetworkScorer mWifiConnectedNetworkScorer;
 
     private Handler mHandler;
     private TestLooper mLooper;
@@ -2230,4 +2232,63 @@
         assertEquals(testResults, mWifiManager
                 .getWifiConfigForMatchedNetworkSuggestionsSharedWithUser(new ArrayList<>()));
     }
+
+    /**
+     * Verify the call to setWifiConnectedNetworkScorer goes to WifiServiceImpl.
+     */
+    @Test
+    public void setWifiConnectedNetworkScorerGoesToWifiServiceImpl() throws Exception {
+        mExecutor = new SynchronousExecutor();
+        mWifiManager.setWifiConnectedNetworkScorer(mExecutor, mWifiConnectedNetworkScorer);
+        verify(mWifiService).setWifiConnectedNetworkScorer(any(IBinder.class),
+                any(IWifiConnectedNetworkScorer.Stub.class));
+    }
+
+    /**
+     * Verify the call to clearWifiConnectedNetworkScorer goes to WifiServiceImpl.
+     */
+    @Test
+    public void clearWifiConnectedNetworkScorerGoesToWifiServiceImpl() throws Exception {
+        mExecutor = new SynchronousExecutor();
+        mWifiManager.setWifiConnectedNetworkScorer(mExecutor, mWifiConnectedNetworkScorer);
+        verify(mWifiService).setWifiConnectedNetworkScorer(any(IBinder.class),
+                any(IWifiConnectedNetworkScorer.Stub.class));
+
+        mWifiManager.clearWifiConnectedNetworkScorer();
+        verify(mWifiService).clearWifiConnectedNetworkScorer();
+    }
+
+    /**
+     * Verify that Wi-Fi connected scorer receives score change callback after registeration.
+     */
+    @Test
+    public void verifyScorerReceiveScoreChangeCallbackAfterRegistration() throws Exception {
+        mExecutor = new SynchronousExecutor();
+        mWifiManager.setWifiConnectedNetworkScorer(mExecutor, mWifiConnectedNetworkScorer);
+        ArgumentCaptor<IWifiConnectedNetworkScorer.Stub> scorerCaptor =
+                ArgumentCaptor.forClass(IWifiConnectedNetworkScorer.Stub.class);
+        verify(mWifiService).setWifiConnectedNetworkScorer(any(IBinder.class),
+                scorerCaptor.capture());
+        scorerCaptor.getValue().setScoreChangeCallback(any());
+        mLooper.dispatchAll();
+        verify(mWifiConnectedNetworkScorer).setScoreChangeCallback(any());
+    }
+
+    /**
+     * Verify that Wi-Fi connected scorer receives session ID when start/stop methods are called.
+     */
+    @Test
+    public void verifyScorerReceiveSessionIdWhenStartStopIsCalled() throws Exception {
+        mExecutor = new SynchronousExecutor();
+        mWifiManager.setWifiConnectedNetworkScorer(mExecutor, mWifiConnectedNetworkScorer);
+        ArgumentCaptor<IWifiConnectedNetworkScorer.Stub> callbackCaptor =
+                ArgumentCaptor.forClass(IWifiConnectedNetworkScorer.Stub.class);
+        verify(mWifiService).setWifiConnectedNetworkScorer(any(IBinder.class),
+                callbackCaptor.capture());
+        callbackCaptor.getValue().start(0);
+        callbackCaptor.getValue().stop(10);
+        mLooper.dispatchAll();
+        verify(mWifiConnectedNetworkScorer).start(0);
+        verify(mWifiConnectedNetworkScorer).stop(10);
+    }
 }