diff --git a/api/current.txt b/api/current.txt
index 5ac58d0..5b4ba87 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -31737,7 +31737,7 @@
     field public static final int GROUP_OWNER_INTENT_MAX = 15; // 0xf
     field public static final int GROUP_OWNER_INTENT_MIN = 0; // 0x0
     field public String deviceAddress;
-    field public int groupOwnerIntent;
+    field @IntRange(from=0, to=15) public int groupOwnerIntent;
     field public android.net.wifi.WpsInfo wps;
   }
 
@@ -31929,14 +31929,14 @@
     method public int getDeviceType();
     method public int getMaxThroughput();
     method public boolean isContentProtectionSupported();
+    method public boolean isEnabled();
     method public boolean isSessionAvailable();
-    method public boolean isWfdEnabled();
     method public void setContentProtectionSupported(boolean);
-    method public void setControlPort(int);
+    method public void setControlPort(@IntRange(from=0) int);
     method public boolean setDeviceType(int);
-    method public void setMaxThroughput(int);
+    method public void setEnabled(boolean);
+    method public void setMaxThroughput(@IntRange(from=0) int);
     method public void setSessionAvailable(boolean);
-    method public void setWfdEnabled(boolean);
     method public void writeToParcel(@NonNull android.os.Parcel, int);
     field @NonNull public static final android.os.Parcelable.Creator<android.net.wifi.p2p.WifiP2pWfdInfo> CREATOR;
     field public static final int DEVICE_TYPE_PRIMARY_SINK = 1; // 0x1
diff --git a/api/system-current.txt b/api/system-current.txt
index ed9f134..58b7ab3 100755
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -8102,7 +8102,7 @@
 
   public final class WifiP2pGroupList implements android.os.Parcelable {
     method public int describeContents();
-    method @NonNull public java.util.Collection<android.net.wifi.p2p.WifiP2pGroup> getGroupList();
+    method @NonNull public java.util.List<android.net.wifi.p2p.WifiP2pGroup> getGroupList();
     method public void writeToParcel(@NonNull android.os.Parcel, int);
     field @NonNull public static final android.os.Parcelable.Creator<android.net.wifi.p2p.WifiP2pGroupList> CREATOR;
   }
@@ -8110,12 +8110,13 @@
   public class WifiP2pManager {
     method @RequiresPermission(anyOf={android.Manifest.permission.NETWORK_SETTINGS, android.Manifest.permission.NETWORK_STACK, android.Manifest.permission.OVERRIDE_WIFI_CONFIG}) public void deletePersistentGroup(@NonNull android.net.wifi.p2p.WifiP2pManager.Channel, int, @Nullable android.net.wifi.p2p.WifiP2pManager.ActionListener);
     method @RequiresPermission(android.Manifest.permission.NETWORK_SETTINGS) public void factoryReset(@NonNull android.net.wifi.p2p.WifiP2pManager.Channel, @Nullable android.net.wifi.p2p.WifiP2pManager.ActionListener);
-    method @RequiresPermission(android.Manifest.permission.NETWORK_SETTINGS) public void listen(@NonNull android.net.wifi.p2p.WifiP2pManager.Channel, boolean, @Nullable android.net.wifi.p2p.WifiP2pManager.ActionListener);
     method @RequiresPermission(anyOf={android.Manifest.permission.NETWORK_SETTINGS, android.Manifest.permission.NETWORK_STACK, android.Manifest.permission.READ_WIFI_CREDENTIAL}) public void requestPersistentGroupInfo(@NonNull android.net.wifi.p2p.WifiP2pManager.Channel, @Nullable android.net.wifi.p2p.WifiP2pManager.PersistentGroupInfoListener);
     method @RequiresPermission(anyOf={android.Manifest.permission.NETWORK_SETTINGS, android.Manifest.permission.NETWORK_STACK, android.Manifest.permission.OVERRIDE_WIFI_CONFIG}) public void setDeviceName(@NonNull android.net.wifi.p2p.WifiP2pManager.Channel, @NonNull String, @Nullable android.net.wifi.p2p.WifiP2pManager.ActionListener);
     method @RequiresPermission(allOf={android.Manifest.permission.CONNECTIVITY_INTERNAL, android.Manifest.permission.CONFIGURE_WIFI_DISPLAY}) public void setMiracastMode(int);
     method @RequiresPermission(android.Manifest.permission.CONFIGURE_WIFI_DISPLAY) public void setWfdInfo(@NonNull android.net.wifi.p2p.WifiP2pManager.Channel, @NonNull android.net.wifi.p2p.WifiP2pWfdInfo, @Nullable android.net.wifi.p2p.WifiP2pManager.ActionListener);
     method @RequiresPermission(anyOf={android.Manifest.permission.NETWORK_SETTINGS, android.Manifest.permission.NETWORK_STACK, android.Manifest.permission.OVERRIDE_WIFI_CONFIG}) public void setWifiP2pChannels(@NonNull android.net.wifi.p2p.WifiP2pManager.Channel, int, int, @Nullable android.net.wifi.p2p.WifiP2pManager.ActionListener);
+    method @RequiresPermission(android.Manifest.permission.NETWORK_SETTINGS) public void startListening(@NonNull android.net.wifi.p2p.WifiP2pManager.Channel, @Nullable android.net.wifi.p2p.WifiP2pManager.ActionListener);
+    method @RequiresPermission(android.Manifest.permission.NETWORK_SETTINGS) public void stopListening(@NonNull android.net.wifi.p2p.WifiP2pManager.Channel, @Nullable android.net.wifi.p2p.WifiP2pManager.ActionListener);
     field public static final String ACTION_WIFI_P2P_PERSISTENT_GROUPS_CHANGED = "android.net.wifi.p2p.action.WIFI_P2P_PERSISTENT_GROUPS_CHANGED";
     field public static final int MIRACAST_DISABLED = 0; // 0x0
     field public static final int MIRACAST_SINK = 2; // 0x2
diff --git a/services/core/java/com/android/server/display/WifiDisplayController.java b/services/core/java/com/android/server/display/WifiDisplayController.java
index 2992f1e..a7e1a28 100644
--- a/services/core/java/com/android/server/display/WifiDisplayController.java
+++ b/services/core/java/com/android/server/display/WifiDisplayController.java
@@ -291,7 +291,7 @@
                 mWfdEnabling = true;
 
                 WifiP2pWfdInfo wfdInfo = new WifiP2pWfdInfo();
-                wfdInfo.setWfdEnabled(true);
+                wfdInfo.setEnabled(true);
                 wfdInfo.setDeviceType(WifiP2pWfdInfo.DEVICE_TYPE_WFD_SOURCE);
                 wfdInfo.setSessionAvailable(true);
                 wfdInfo.setControlPort(DEFAULT_CONTROL_PORT);
@@ -323,7 +323,7 @@
             // WFD should be disabled.
             if (mWfdEnabled || mWfdEnabling) {
                 WifiP2pWfdInfo wfdInfo = new WifiP2pWfdInfo();
-                wfdInfo.setWfdEnabled(false);
+                wfdInfo.setEnabled(false);
                 mWifiP2pManager.setWfdInfo(mWifiP2pChannel, wfdInfo, new ActionListener() {
                     @Override
                     public void onSuccess() {
@@ -1044,7 +1044,7 @@
     private static boolean isWifiDisplay(WifiP2pDevice device) {
         WifiP2pWfdInfo wfdInfo = device.getWfdInfo();
         return wfdInfo != null
-                && wfdInfo.isWfdEnabled()
+                && wfdInfo.isEnabled()
                 && isPrimarySinkDeviceType(wfdInfo.getDeviceType());
     }
 
diff --git a/wifi/java/android/net/wifi/p2p/WifiP2pConfig.java b/wifi/java/android/net/wifi/p2p/WifiP2pConfig.java
index 36c7213..d479892 100644
--- a/wifi/java/android/net/wifi/p2p/WifiP2pConfig.java
+++ b/wifi/java/android/net/wifi/p2p/WifiP2pConfig.java
@@ -17,6 +17,7 @@
 package android.net.wifi.p2p;
 
 import android.annotation.IntDef;
+import android.annotation.IntRange;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.compat.annotation.UnsupportedAppUsage;
@@ -133,6 +134,7 @@
      *
      * By default this field is set to {@link #GROUP_OWNER_INTENT_AUTO}.
      */
+    @IntRange(from = 0, to = 15)
     public int groupOwnerIntent = GROUP_OWNER_INTENT_AUTO;
 
     /** @hide */
diff --git a/wifi/java/android/net/wifi/p2p/WifiP2pGroupList.java b/wifi/java/android/net/wifi/p2p/WifiP2pGroupList.java
index cdb2806..8a86311 100644
--- a/wifi/java/android/net/wifi/p2p/WifiP2pGroupList.java
+++ b/wifi/java/android/net/wifi/p2p/WifiP2pGroupList.java
@@ -22,7 +22,9 @@
 import android.os.Parcelable;
 import android.util.LruCache;
 
+import java.util.ArrayList;
 import java.util.Collection;
+import java.util.List;
 import java.util.Map;
 
 
@@ -78,8 +80,8 @@
      * Get the list of P2P groups.
      */
     @NonNull
-    public Collection<WifiP2pGroup> getGroupList() {
-        return mGroups.snapshot().values();
+    public List<WifiP2pGroup> getGroupList() {
+        return new ArrayList<>(mGroups.snapshot().values());
     }
 
     /**
diff --git a/wifi/java/android/net/wifi/p2p/WifiP2pManager.java b/wifi/java/android/net/wifi/p2p/WifiP2pManager.java
index 0fe0675..9c2cad9 100644
--- a/wifi/java/android/net/wifi/p2p/WifiP2pManager.java
+++ b/wifi/java/android/net/wifi/p2p/WifiP2pManager.java
@@ -326,6 +326,12 @@
 
     /**
      * Broadcast intent action indicating that remembered persistent groups have changed.
+     *
+     * You can <em>not</em> receive this through components declared
+     * in manifests, only by explicitly registering for it with
+     * {@link android.content.Context#registerReceiver(android.content.BroadcastReceiver,
+     * android.content.IntentFilter) Context.registerReceiver()}.
+     *
      * @hide
      */
     @SystemApi
@@ -1347,20 +1353,33 @@
     }
 
     /**
-     * Force p2p to enter or exit listen state
+     * Force p2p to enter listen state
      *
      * @param c is the channel created at {@link #initialize(Context, Looper, ChannelListener)}
-     * @param enable enables or disables listening
      * @param listener for callbacks on success or failure. Can be null.
      *
      * @hide
      */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.NETWORK_SETTINGS)
-    public void listen(@NonNull Channel c, boolean enable, @Nullable ActionListener listener) {
+    public void startListening(@NonNull Channel c, @Nullable ActionListener listener) {
         checkChannel(c);
-        c.mAsyncChannel.sendMessage(enable ? START_LISTEN : STOP_LISTEN,
-                0, c.putListener(listener));
+        c.mAsyncChannel.sendMessage(START_LISTEN, 0, c.putListener(listener));
+    }
+
+    /**
+     * Force p2p to exit listen state
+     *
+     * @param c is the channel created at {@link #initialize(Context, Looper, ChannelListener)}
+     * @param listener for callbacks on success or failure. Can be null.
+     *
+     * @hide
+     */
+    @SystemApi
+    @RequiresPermission(android.Manifest.permission.NETWORK_SETTINGS)
+    public void stopListening(@NonNull Channel c, @Nullable ActionListener listener) {
+        checkChannel(c);
+        c.mAsyncChannel.sendMessage(STOP_LISTEN, 0, c.putListener(listener));
     }
 
     /**
diff --git a/wifi/java/android/net/wifi/p2p/WifiP2pWfdInfo.java b/wifi/java/android/net/wifi/p2p/WifiP2pWfdInfo.java
index 5484d24..e399b5b 100644
--- a/wifi/java/android/net/wifi/p2p/WifiP2pWfdInfo.java
+++ b/wifi/java/android/net/wifi/p2p/WifiP2pWfdInfo.java
@@ -17,6 +17,7 @@
 package android.net.wifi.p2p;
 
 import android.annotation.IntDef;
+import android.annotation.IntRange;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.compat.annotation.UnsupportedAppUsage;
@@ -34,7 +35,7 @@
  */
 public final class WifiP2pWfdInfo implements Parcelable {
 
-    private boolean mWfdEnabled;
+    private boolean mEnabled;
 
     /** Device information bitmap */
     private int mDeviceInfo;
@@ -85,15 +86,15 @@
     /** @hide */
     @UnsupportedAppUsage
     public WifiP2pWfdInfo(int devInfo, int ctrlPort, int maxTput) {
-        mWfdEnabled = true;
+        mEnabled = true;
         mDeviceInfo = devInfo;
         mCtrlPort = ctrlPort;
         mMaxThroughput = maxTput;
     }
 
     /** Returns true is Wifi Display is enabled, false otherwise. */
-    public boolean isWfdEnabled() {
-        return mWfdEnabled;
+    public boolean isEnabled() {
+        return mEnabled;
     }
 
     /**
@@ -101,8 +102,8 @@
      *
      * @param enabled true to enable Wifi Display, false to disable
      */
-    public void setWfdEnabled(boolean enabled) {
-        mWfdEnabled = enabled;
+    public void setEnabled(boolean enabled) {
+        mEnabled = enabled;
     }
 
     /**
@@ -177,12 +178,12 @@
     }
 
     /** Sets the TCP port at which the WFD Device listens for RTSP messages. */
-    public void setControlPort(int port) {
+    public void setControlPort(@IntRange(from = 0) int port) {
         mCtrlPort = port;
     }
 
     /** Sets the maximum average throughput capability of the WFD Device, in megabits/second. */
-    public void setMaxThroughput(int maxThroughput) {
+    public void setMaxThroughput(@IntRange(from = 0) int maxThroughput) {
         mMaxThroughput = maxThroughput;
     }
 
@@ -200,7 +201,7 @@
     @Override
     public String toString() {
         StringBuffer sbuf = new StringBuffer();
-        sbuf.append("WFD enabled: ").append(mWfdEnabled);
+        sbuf.append("WFD enabled: ").append(mEnabled);
         sbuf.append("WFD DeviceInfo: ").append(mDeviceInfo);
         sbuf.append("\n WFD CtrlPort: ").append(mCtrlPort);
         sbuf.append("\n WFD MaxThroughput: ").append(mMaxThroughput);
@@ -215,7 +216,7 @@
     /** Copy constructor. */
     public WifiP2pWfdInfo(@Nullable WifiP2pWfdInfo source) {
         if (source != null) {
-            mWfdEnabled = source.mWfdEnabled;
+            mEnabled = source.mEnabled;
             mDeviceInfo = source.mDeviceInfo;
             mCtrlPort = source.mCtrlPort;
             mMaxThroughput = source.mMaxThroughput;
@@ -225,14 +226,14 @@
     /** Implement the Parcelable interface */
     @Override
     public void writeToParcel(@NonNull Parcel dest, int flags) {
-        dest.writeInt(mWfdEnabled ? 1 : 0);
+        dest.writeInt(mEnabled ? 1 : 0);
         dest.writeInt(mDeviceInfo);
         dest.writeInt(mCtrlPort);
         dest.writeInt(mMaxThroughput);
     }
 
     private void readFromParcel(Parcel in) {
-        mWfdEnabled = (in.readInt() == 1);
+        mEnabled = (in.readInt() == 1);
         mDeviceInfo = in.readInt();
         mCtrlPort = in.readInt();
         mMaxThroughput = in.readInt();
diff --git a/wifi/tests/src/android/net/wifi/p2p/WifiP2pDeviceTest.java b/wifi/tests/src/android/net/wifi/p2p/WifiP2pDeviceTest.java
index 17ee755..6edc287 100644
--- a/wifi/tests/src/android/net/wifi/p2p/WifiP2pDeviceTest.java
+++ b/wifi/tests/src/android/net/wifi/p2p/WifiP2pDeviceTest.java
@@ -45,7 +45,7 @@
         assertEquals(devA.groupCapability, devB.groupCapability);
         assertEquals(devA.status, devB.status);
         if (devA.wfdInfo != null) {
-            assertEquals(devA.wfdInfo.isWfdEnabled(), devB.wfdInfo.isWfdEnabled());
+            assertEquals(devA.wfdInfo.isEnabled(), devB.wfdInfo.isEnabled());
             assertEquals(devA.wfdInfo.getDeviceInfoHex(), devB.wfdInfo.getDeviceInfoHex());
             assertEquals(devA.wfdInfo.getControlPort(), devB.wfdInfo.getControlPort());
             assertEquals(devA.wfdInfo.getMaxThroughput(), devB.wfdInfo.getMaxThroughput());
diff --git a/wifi/tests/src/android/net/wifi/p2p/WifiP2pWfdInfoTest.java b/wifi/tests/src/android/net/wifi/p2p/WifiP2pWfdInfoTest.java
index 15a0aac..2a9b36b 100644
--- a/wifi/tests/src/android/net/wifi/p2p/WifiP2pWfdInfoTest.java
+++ b/wifi/tests/src/android/net/wifi/p2p/WifiP2pWfdInfoTest.java
@@ -55,8 +55,8 @@
     public void testSettersGetters() throws Exception {
         WifiP2pWfdInfo info = new WifiP2pWfdInfo();
 
-        info.setWfdEnabled(true);
-        assertTrue(info.isWfdEnabled());
+        info.setEnabled(true);
+        assertTrue(info.isEnabled());
 
         info.setDeviceType(WifiP2pWfdInfo.DEVICE_TYPE_WFD_SOURCE);
         assertEquals(WifiP2pWfdInfo.DEVICE_TYPE_WFD_SOURCE, info.getDeviceType());