Snap for 6692658 from c29468777021f4970ab20b38601448fe81ecdcbb to rvc-release

Change-Id: I538293eb83bf3caf72bc986d7aad9f6a385c1f1b

12 files changed, 164 insertions, 17 deletions

diff --git a/media/java/android/media/MediaMetrics.java b/media/java/android/media/MediaMetrics.java
index f6f482dd0cd3..eaf86bb3936c 100644
--- a/media/java/android/media/MediaMetrics.java
+++ b/media/java/android/media/MediaMetrics.java
@@ -53,6 +53,7 @@ public class MediaMetrics {
         public static final String AUDIO_SERVICE = AUDIO + SEPARATOR + "service";
         public static final String AUDIO_VOLUME = AUDIO + SEPARATOR + "volume";
         public static final String AUDIO_VOLUME_EVENT = AUDIO_VOLUME + SEPARATOR + "event";
+        public static final String AUDIO_MODE = AUDIO + SEPARATOR + "mode";
     }
 
     /**
@@ -140,6 +141,10 @@ public class MediaMetrics {
         public static final Key<String> REQUEST =
                 createKey("request", String.class);
 
+        // For audio mode
+        public static final Key<String> REQUESTED_MODE =
+                createKey("requestedMode", String.class); // audio_mode
+
         // For Bluetooth
         public static final Key<String> SCO_AUDIO_MODE =
                 createKey("scoAudioMode", String.class);
diff --git a/packages/Shell/res/values-bn/strings.xml b/packages/Shell/res/values-bn/strings.xml
index 39f62fe6a00a..ede125bce935 100644
--- a/packages/Shell/res/values-bn/strings.xml
+++ b/packages/Shell/res/values-bn/strings.xml
@@ -35,7 +35,7 @@
     <string name="bugreport_add_details_to_zip_failed" msgid="1302931926486712371">"জিপ ফাইলে ত্রুটি প্রতিবেদনের বিশদ বিবরণ যোগ করা যায়নি"</string>
     <string name="bugreport_unnamed" msgid="2800582406842092709">"নামবিহীন"</string>
     <string name="bugreport_info_action" msgid="2158204228510576227">"বিশদ বিবরণ"</string>
-    <string name="bugreport_screenshot_action" msgid="8677781721940614995">"স্ক্রিনশট"</string>
+    <string name="bugreport_screenshot_action" msgid="8677781721940614995">"স্ক্রিনশট নিন"</string>
     <string name="bugreport_screenshot_taken" msgid="5684211273096253120">"স্ক্রিনশট সফলভাবে নেওয়া হয়েছে৷"</string>
     <string name="bugreport_screenshot_failed" msgid="5853049140806834601">"স্ক্রিনশট নেওয়া যায়নি৷"</string>
     <string name="bugreport_info_dialog_title" msgid="1355948594292983332">"ত্রুটির প্রতিবেদন <xliff:g id="ID">#%d</xliff:g> এর বিশদ বিবরণ"</string>
diff --git a/packages/SystemUI/res/values-bn/strings.xml b/packages/SystemUI/res/values-bn/strings.xml
index bb988350703f..08cf5d19d315 100644
--- a/packages/SystemUI/res/values-bn/strings.xml
+++ b/packages/SystemUI/res/values-bn/strings.xml
@@ -76,7 +76,7 @@
     <string name="learn_more" msgid="4690632085667273811">"আরও জানুন"</string>
     <string name="compat_mode_on" msgid="4963711187149440884">"স্ক্রীণ পূরণ করতে জুম করুন"</string>
     <string name="compat_mode_off" msgid="7682459748279487945">"ফুল স্ক্রিন করুন"</string>
-    <string name="global_action_screenshot" msgid="2760267567509131654">"স্ক্রিনশট"</string>
+    <string name="global_action_screenshot" msgid="2760267567509131654">"স্ক্রিনশট নিন"</string>
     <string name="remote_input_image_insertion_text" msgid="4850791636452521123">"একটি ছবি পাঠানো হয়েছে"</string>
     <string name="screenshot_saving_ticker" msgid="6519186952674544916">"স্ক্রিনশট সেভ করা হচ্ছে..."</string>
     <string name="screenshot_saving_title" msgid="2298349784913287333">"স্ক্রিনশট সেভ করা হচ্ছে..."</string>
diff --git a/packages/SystemUI/res/values-ca/strings.xml b/packages/SystemUI/res/values-ca/strings.xml
index be2637c6b5e2..f5330d3b2d6a 100644
--- a/packages/SystemUI/res/values-ca/strings.xml
+++ b/packages/SystemUI/res/values-ca/strings.xml
@@ -21,7 +21,7 @@
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_label" msgid="4811759950673118541">"IU del sistema"</string>
     <string name="status_bar_clear_all_button" msgid="2491321682873657397">"Esborra"</string>
-    <string name="status_bar_no_notifications_title" msgid="7812479124981107507">"Cap notificació"</string>
+    <string name="status_bar_no_notifications_title" msgid="7812479124981107507">"No hi ha cap notificació"</string>
     <string name="status_bar_ongoing_events_title" msgid="3986169317496615446">"Continu"</string>
     <string name="status_bar_latest_events_title" msgid="202755896454005436">"Notificacions"</string>
     <string name="battery_low_title" msgid="6891106956328275225">"És possible que la bateria s\'esgoti aviat"</string>
@@ -517,7 +517,7 @@
     <string name="accessibility_notification_section_header_gentle_clear_all" msgid="6490207897764933919">"Esborra totes les notificacions silencioses"</string>
     <string name="dnd_suppressing_shade_text" msgid="5588252250634464042">"Notificacions pausades pel mode No molestis"</string>
     <string name="media_projection_action_text" msgid="3634906766918186440">"Comença ara"</string>
-    <string name="empty_shade_text" msgid="8935967157319717412">"Cap notificació"</string>
+    <string name="empty_shade_text" msgid="8935967157319717412">"No hi ha cap notificació"</string>
     <string name="profile_owned_footer" msgid="2756770645766113964">"El perfil es pot supervisar"</string>
     <string name="vpn_footer" msgid="3457155078010607471">"És possible que la xarxa estigui supervisada."</string>
     <string name="branded_vpn_footer" msgid="816930186313188514">"És possible que la xarxa estigui supervisada"</string>
diff --git a/packages/SystemUI/res/values-hi/strings.xml b/packages/SystemUI/res/values-hi/strings.xml
index 1f6000b4f49d..44c065672a6b 100644
--- a/packages/SystemUI/res/values-hi/strings.xml
+++ b/packages/SystemUI/res/values-hi/strings.xml
@@ -370,7 +370,7 @@
     <string name="quick_settings_location_off_label" msgid="7923929131443915919">"जगह की जानकारी बंद है"</string>
     <string name="quick_settings_media_device_label" msgid="8034019242363789941">"मीडिया डिवाइस"</string>
     <string name="quick_settings_rssi_label" msgid="3397615415140356701">"RSSI"</string>
-    <string name="quick_settings_rssi_emergency_only" msgid="7499207215265078598">"केवल आपातकालीन कॉल"</string>
+    <string name="quick_settings_rssi_emergency_only" msgid="7499207215265078598">"सिर्फ़ आपातकालीन कॉल"</string>
     <string name="quick_settings_settings_label" msgid="2214639529565474534">"सेटिंग"</string>
     <string name="quick_settings_time_label" msgid="3352680970557509303">"समय"</string>
     <string name="quick_settings_user_label" msgid="1253515509432672496">"मुझे"</string>
@@ -519,7 +519,7 @@
     <string name="accessibility_notification_section_header_gentle_clear_all" msgid="6490207897764933919">"बिना आवाज़ की सभी सूचनाएं हटाएं"</string>
     <string name="dnd_suppressing_shade_text" msgid="5588252250634464042">"\'परेशान न करें\' सुविधा के ज़रिए कुछ समय के लिए सूचनाएं दिखाना रोक दिया गया है"</string>
     <string name="media_projection_action_text" msgid="3634906766918186440">"अभी शुरू करें"</string>
-    <string name="empty_shade_text" msgid="8935967157319717412">"कोई सूचना नहीं मिली"</string>
+    <string name="empty_shade_text" msgid="8935967157319717412">"कोई सूचना नहीं है"</string>
     <string name="profile_owned_footer" msgid="2756770645766113964">"प्रोफ़ाइल को मॉनीटर किया जा सकता है"</string>
     <string name="vpn_footer" msgid="3457155078010607471">"नेटवर्क को मॉनीटर किया जा सकता है"</string>
     <string name="branded_vpn_footer" msgid="816930186313188514">"नेटवर्क को मॉनिटर किया जा सकता है"</string>
diff --git a/packages/SystemUI/res/values-iw/strings.xml b/packages/SystemUI/res/values-iw/strings.xml
index cb4fade417f2..61a5d5d2f829 100644
--- a/packages/SystemUI/res/values-iw/strings.xml
+++ b/packages/SystemUI/res/values-iw/strings.xml
@@ -920,7 +920,7 @@
     <string name="tuner_lock_screen" msgid="2267383813241144544">"מסך נעילה"</string>
     <string name="pip_phone_expand" msgid="1424988917240616212">"הרחב"</string>
     <string name="pip_phone_minimize" msgid="9057117033655996059">"מזער"</string>
-    <string name="pip_phone_close" msgid="8801864042095341824">"סגור"</string>
+    <string name="pip_phone_close" msgid="8801864042095341824">"סגירה"</string>
     <string name="pip_phone_settings" msgid="5687538631925004341">"הגדרות"</string>
     <string name="pip_phone_dismiss_hint" msgid="5825740708095316710">"גרור למטה כדי לסגור"</string>
     <string name="pip_menu_title" msgid="6365909306215631910">"תפריט"</string>
diff --git a/packages/SystemUI/res/values-lv/strings.xml b/packages/SystemUI/res/values-lv/strings.xml
index 9b48c9bc3746..c804f22e296c 100644
--- a/packages/SystemUI/res/values-lv/strings.xml
+++ b/packages/SystemUI/res/values-lv/strings.xml
@@ -294,7 +294,7 @@
     <string name="accessibility_quick_settings_more_time" msgid="7646479831704665284">"Vairāk laika."</string>
     <string name="accessibility_quick_settings_less_time" msgid="9110364286464977870">"Mazāk laika."</string>
     <string name="accessibility_quick_settings_flashlight_off" msgid="7606563260714825190">"Apgaismojums ir izslēgts."</string>
-    <string name="accessibility_quick_settings_flashlight_unavailable" msgid="7458591827288347635">"Zibspuldze nav pieejama."</string>
+    <string name="accessibility_quick_settings_flashlight_unavailable" msgid="7458591827288347635">"Lukturītis nav pieejams."</string>
     <string name="accessibility_quick_settings_flashlight_on" msgid="3785616827729850766">"Apgaismojums ir ieslēgts."</string>
     <string name="accessibility_quick_settings_flashlight_changed_off" msgid="3782375441381402599">"Apgaismojums ir izslēgts."</string>
     <string name="accessibility_quick_settings_flashlight_changed_on" msgid="4747870681508334200">"Apgaismojums ir ieslēgts."</string>
@@ -407,7 +407,7 @@
       <item quantity="other">%d ierīces</item>
     </plurals>
     <string name="quick_settings_notifications_label" msgid="3379631363952582758">"Paziņojumi"</string>
-    <string name="quick_settings_flashlight_label" msgid="4904634272006284185">"Zibspuldze"</string>
+    <string name="quick_settings_flashlight_label" msgid="4904634272006284185">"Lukturītis"</string>
     <string name="quick_settings_flashlight_camera_in_use" msgid="4820591564526512571">"Kamera tiek lietota"</string>
     <string name="quick_settings_cellular_detail_title" msgid="792977203299358893">"Mobilie dati"</string>
     <string name="quick_settings_cellular_detail_data_usage" msgid="6105969068871138427">"Datu lietojums"</string>
diff --git a/packages/SystemUI/res/values-pl/strings.xml b/packages/SystemUI/res/values-pl/strings.xml
index 14047c86eb6f..4449ca730245 100644
--- a/packages/SystemUI/res/values-pl/strings.xml
+++ b/packages/SystemUI/res/values-pl/strings.xml
@@ -992,7 +992,7 @@
     <string name="slice_permission_deny" msgid="6870256451658176895">"Odmów"</string>
     <string name="auto_saver_title" msgid="6873691178754086596">"Kliknij, by zaplanować działanie oszczędzania baterii"</string>
     <string name="auto_saver_text" msgid="3214960308353838764">"Oszczędzanie baterii włącza się, jeśli bateria jest prawie wyczerpana"</string>
-    <string name="no_auto_saver_action" msgid="7467924389609773835">"Nie"</string>
+    <string name="no_auto_saver_action" msgid="7467924389609773835">"Nie, dziękuję"</string>
     <string name="auto_saver_enabled_title" msgid="4294726198280286333">"Harmonogram oszczędzania baterii jest aktywny"</string>
     <string name="auto_saver_enabled_text" msgid="7889491183116752719">"Oszczędzanie baterii włączy się automatycznie, gdy poziom naładowania baterii spadnie poniżej <xliff:g id="PERCENTAGE">%d</xliff:g>%%."</string>
     <string name="open_saver_setting_action" msgid="2111461909782935190">"Ustawienia"</string>
diff --git a/services/core/java/com/android/server/audio/AudioService.java b/services/core/java/com/android/server/audio/AudioService.java
index 5e908b26fafa..c4eca605206d 100755
--- a/services/core/java/com/android/server/audio/AudioService.java
+++ b/services/core/java/com/android/server/audio/AudioService.java
@@ -283,6 +283,7 @@ public class AudioService extends IAudioService.Stub
     private static final int MSG_HDMI_VOLUME_CHECK = 28;
     private static final int MSG_PLAYBACK_CONFIG_CHANGE = 29;
     private static final int MSG_BROADCAST_MICROPHONE_MUTE = 30;
+    private static final int MSG_CHECK_MODE_FOR_UID = 31;
     // start of messages handled under wakelock
     //   these messages can only be queued, i.e. sent with queueMsgUnderWakeLock(),
     //   and not with sendMsg(..., ..., SENDMSG_QUEUE, ...)
@@ -3679,12 +3680,14 @@ public class AudioService extends IAudioService.Stub
         private final IBinder mCb; // To be notified of client's death
         private final int mPid;
         private final int mUid;
+        private String mPackage;
         private int mMode = AudioSystem.MODE_NORMAL; // Current mode set by this client
 
-        SetModeDeathHandler(IBinder cb, int pid, int uid) {
+        SetModeDeathHandler(IBinder cb, int pid, int uid, String caller) {
             mCb = cb;
             mPid = pid;
             mUid = uid;
+            mPackage = caller;
         }
 
         public void binderDied() {
@@ -3722,6 +3725,10 @@ public class AudioService extends IAudioService.Stub
         public int getUid() {
             return mUid;
         }
+
+        public String getPackage() {
+            return mPackage;
+        }
     }
 
     /** @see AudioManager#setMode(int) */
@@ -3803,6 +3810,9 @@ public class AudioService extends IAudioService.Stub
                 hdlr = h;
                 // Remove from client list so that it is re-inserted at top of list
                 iter.remove();
+                if (hdlr.getMode() == AudioSystem.MODE_IN_COMMUNICATION) {
+                    mAudioHandler.removeEqualMessages(MSG_CHECK_MODE_FOR_UID, hdlr);
+                }
                 try {
                     hdlr.getBinder().unlinkToDeath(hdlr, 0);
                     if (cb != hdlr.getBinder()) {
@@ -3833,7 +3843,7 @@ public class AudioService extends IAudioService.Stub
                 }
             } else {
                 if (hdlr == null) {
-                    hdlr = new SetModeDeathHandler(cb, pid, uid);
+                    hdlr = new SetModeDeathHandler(cb, pid, uid, caller);
                 }
                 // Register for client death notification
                 try {
@@ -3880,6 +3890,7 @@ public class AudioService extends IAudioService.Stub
             // Note: newModeOwnerPid is always 0 when actualMode is MODE_NORMAL
             mModeLogger.log(
                     new PhoneStateEvent(caller, pid, mode, newModeOwnerPid, actualMode));
+
             int streamType = getActiveStreamType(AudioManager.USE_DEFAULT_STREAM_TYPE);
             int device = getDeviceForStream(streamType);
             int index = mStreamStates[mStreamVolumeAlias[streamType]].getIndex(device);
@@ -3890,6 +3901,16 @@ public class AudioService extends IAudioService.Stub
 
             // change of mode may require volume to be re-applied on some devices
             updateAbsVolumeMultiModeDevices(oldMode, actualMode);
+
+            if (actualMode == AudioSystem.MODE_IN_COMMUNICATION) {
+                sendMsg(mAudioHandler,
+                        MSG_CHECK_MODE_FOR_UID,
+                        SENDMSG_QUEUE,
+                        0,
+                        0,
+                        hdlr,
+                        CHECK_MODE_FOR_UID_PERIOD_MS);
+            }
         }
         return newModeOwnerPid;
     }
@@ -6374,6 +6395,35 @@ public class AudioService extends IAudioService.Stub
                 case MSG_BROADCAST_MICROPHONE_MUTE:
                     mSystemServer.sendMicrophoneMuteChangedIntent();
                     break;
+
+                case MSG_CHECK_MODE_FOR_UID:
+                    synchronized (mDeviceBroker.mSetModeLock) {
+                        if (msg.obj == null) {
+                            break;
+                        }
+                        // If the app corresponding to this mode death handler object is not
+                        // capturing or playing audio anymore after 3 seconds, remove it
+                        // from the stack. Otherwise, check again in 3 seconds.
+                        SetModeDeathHandler h = (SetModeDeathHandler) msg.obj;
+                        if (mSetModeDeathHandlers.indexOf(h) < 0) {
+                            break;
+                        }
+                        if (mRecordMonitor.isRecordingActiveForUid(h.getUid())
+                                || mPlaybackMonitor.isPlaybackActiveForUid(h.getUid())) {
+                            sendMsg(mAudioHandler,
+                                    MSG_CHECK_MODE_FOR_UID,
+                                    SENDMSG_QUEUE,
+                                    0,
+                                    0,
+                                    h,
+                                    CHECK_MODE_FOR_UID_PERIOD_MS);
+                            break;
+                        }
+                        // For now just log the fact that an app is hogging the audio mode.
+                        // TODO(b/160260850): remove abusive app from audio mode stack.
+                        mModeLogger.log(new PhoneStateEvent(h.getPackage(), h.getPid()));
+                    }
+                    break;
             }
         }
     }
@@ -7017,6 +7067,8 @@ public class AudioService extends IAudioService.Stub
     private static final int UNSAFE_VOLUME_MUSIC_ACTIVE_MS_MAX = (20 * 3600 * 1000); // 20 hours
     private static final int MUSIC_ACTIVE_POLL_PERIOD_MS = 60000;  // 1 minute polling interval
     private static final int SAFE_VOLUME_CONFIGURE_TIMEOUT_MS = 30000;  // 30s after boot completed
+    // check playback or record activity every 3 seconds for UIDs owning mode IN_COMMUNICATION
+    private static final int CHECK_MODE_FOR_UID_PERIOD_MS = 3000;
 
     private int safeMediaVolumeIndex(int device) {
         if (!mSafeMediaVolumeDevices.contains(device)) {
diff --git a/services/core/java/com/android/server/audio/AudioServiceEvents.java b/services/core/java/com/android/server/audio/AudioServiceEvents.java
index f3ff02f3aedc..0eb5a5d1fb48 100644
--- a/services/core/java/com/android/server/audio/AudioServiceEvents.java
+++ b/services/core/java/com/android/server/audio/AudioServiceEvents.java
@@ -27,28 +27,82 @@ import com.android.server.audio.AudioDeviceInventory.WiredDeviceConnectionState;
 public class AudioServiceEvents {
 
     final static class PhoneStateEvent extends AudioEventLogger.Event {
+        static final int MODE_SET = 0;
+        static final int MODE_IN_COMMUNICATION_TIMEOUT = 1;
+
+        final int mOp;
         final String mPackage;
         final int mOwnerPid;
         final int mRequesterPid;
         final int mRequestedMode;
         final int mActualMode;
 
+        /** used for MODE_SET */
         PhoneStateEvent(String callingPackage, int requesterPid, int requestedMode,
                         int ownerPid, int actualMode) {
+            mOp = MODE_SET;
             mPackage = callingPackage;
             mRequesterPid = requesterPid;
             mRequestedMode = requestedMode;
             mOwnerPid = ownerPid;
             mActualMode = actualMode;
+            logMetricEvent();
+        }
+
+        /** used for MODE_IN_COMMUNICATION_TIMEOUT */
+        PhoneStateEvent(String callingPackage, int ownerPid) {
+            mOp = MODE_IN_COMMUNICATION_TIMEOUT;
+            mPackage = callingPackage;
+            mOwnerPid = ownerPid;
+            mRequesterPid = 0;
+            mRequestedMode = 0;
+            mActualMode = 0;
+            logMetricEvent();
         }
 
         @Override
         public String eventToString() {
-            return new StringBuilder("setMode(").append(AudioSystem.modeToString(mRequestedMode))
-                    .append(") from package=").append(mPackage)
-                    .append(" pid=").append(mRequesterPid)
-                    .append(" selected mode=").append(AudioSystem.modeToString(mActualMode))
-                    .append(" by pid=").append(mOwnerPid).toString();
+            switch (mOp) {
+                case MODE_SET:
+                    return new StringBuilder("setMode(")
+                            .append(AudioSystem.modeToString(mRequestedMode))
+                            .append(") from package=").append(mPackage)
+                            .append(" pid=").append(mRequesterPid)
+                            .append(" selected mode=")
+                            .append(AudioSystem.modeToString(mActualMode))
+                            .append(" by pid=").append(mOwnerPid).toString();
+                case MODE_IN_COMMUNICATION_TIMEOUT:
+                    return new StringBuilder("mode IN COMMUNICATION timeout")
+                            .append(" for package=").append(mPackage)
+                            .append(" pid=").append(mOwnerPid).toString();
+                default: return new StringBuilder("FIXME invalid op:").append(mOp).toString();
+            }
+        }
+
+        /**
+         * Audio Analytics unique Id.
+         */
+        private static final String mMetricsId = MediaMetrics.Name.AUDIO_MODE;
+
+        private void logMetricEvent() {
+            switch (mOp) {
+                case MODE_SET:
+                    new MediaMetrics.Item(mMetricsId)
+                            .set(MediaMetrics.Property.EVENT, "set")
+                            .set(MediaMetrics.Property.REQUESTED_MODE,
+                                    AudioSystem.modeToString(mRequestedMode))
+                            .set(MediaMetrics.Property.MODE, AudioSystem.modeToString(mActualMode))
+                            .set(MediaMetrics.Property.CALLING_PACKAGE, mPackage)
+                            .record();
+                    return;
+                case MODE_IN_COMMUNICATION_TIMEOUT:
+                    new MediaMetrics.Item(mMetricsId)
+                            .set(MediaMetrics.Property.EVENT, "inCommunicationTimeout")
+                            .set(MediaMetrics.Property.CALLING_PACKAGE, mPackage)
+                            .record();
+                    return;
+                default: return;
+            }
         }
     }
 
diff --git a/services/core/java/com/android/server/audio/PlaybackActivityMonitor.java b/services/core/java/com/android/server/audio/PlaybackActivityMonitor.java
index 98f409ea98e7..a5778836aa6e 100644
--- a/services/core/java/com/android/server/audio/PlaybackActivityMonitor.java
+++ b/services/core/java/com/android/server/audio/PlaybackActivityMonitor.java
@@ -366,6 +366,23 @@ public final class PlaybackActivityMonitor
         releasePlayer(piid, 0);
     }
 
+    /**
+     * Returns true if a player belonging to the app with given uid is active.
+     *
+     * @param uid the app uid
+     * @return true if a player is active, false otherwise
+     */
+    public boolean isPlaybackActiveForUid(int uid) {
+        synchronized (mPlayerLock) {
+            for (AudioPlaybackConfiguration apc : mPlayers.values()) {
+                if (apc.isActive() && apc.getClientUid() == uid) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+
     protected void dump(PrintWriter pw) {
         // players
         pw.println("\nPlaybackActivityMonitor dump time: "
diff --git a/services/core/java/com/android/server/audio/RecordingActivityMonitor.java b/services/core/java/com/android/server/audio/RecordingActivityMonitor.java
index 32c6cc32a78d..ea0107ecfd23 100644
--- a/services/core/java/com/android/server/audio/RecordingActivityMonitor.java
+++ b/services/core/java/com/android/server/audio/RecordingActivityMonitor.java
@@ -215,6 +215,25 @@ public final class RecordingActivityMonitor implements AudioSystem.AudioRecordin
         dispatchCallbacks(updateSnapshot(AudioManager.RECORD_CONFIG_EVENT_RELEASE, riid, null));
     }
 
+    /**
+     * Returns true if a recorder belonging to the app with given uid is active.
+     *
+     * @param uid the app uid
+     * @return true if a recorder is active, false otherwise
+     */
+    public boolean isRecordingActiveForUid(int uid) {
+        synchronized (mRecordStates) {
+            for (RecordingState state : mRecordStates) {
+                // Note: isActiveConfiguration() == true => state.getConfig() != null
+                if (state.isActiveConfiguration()
+                        && state.getConfig().getClientUid() == uid) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+
     private void dispatchCallbacks(List<AudioRecordingConfiguration> configs) {
         if (configs == null) { // null means "no changes"
             return;