From 5e640ac80e3b457cb2054d50f6892513a4b78b06 Mon Sep 17 00:00:00 2001
From: Jack Yu <jackyu@google.com>
Date: Wed, 12 Jun 2019 11:00:16 -0700
Subject: [PATCH] Fixed incorrect merge service state

The existing logic for merging service state when device is on
IWLAN does not work properly on AP-assisted mode devices. Fixed
by copying the IWLAN preferred flag into IMS service state so
it can get the correct data RAT for AP-assisted mode devices.

Bug: 134706530
Test: WFC manual tests
Change-Id: Ic18934adb870a0114c913855cdb68e0ef33caa79
---
 telephony/java/android/telephony/ServiceState.java | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/telephony/java/android/telephony/ServiceState.java b/telephony/java/android/telephony/ServiceState.java
index 518da74eb9e25..b7e40336c7547 100644
--- a/telephony/java/android/telephony/ServiceState.java
+++ b/telephony/java/android/telephony/ServiceState.java
@@ -2035,4 +2035,18 @@ public class ServiceState implements Parcelable {
     public void setIwlanPreferred(boolean isIwlanPreferred) {
         mIsIwlanPreferred = isIwlanPreferred;
     }
+
+    /**
+     * @return {@code true} if any data network is preferred on IWLAN.
+     *
+     * Note only when this value is true, {@link #getDataNetworkType()} will return
+     * {@link TelephonyManager#NETWORK_TYPE_IWLAN} when AP-assisted mode device camps on both
+     * cellular and IWLAN. This value does not affect legacy mode devices as the data network
+     * type is directly reported by the modem.
+     *
+     * @hide
+     */
+    public boolean isIwlanPreferred() {
+        return mIsIwlanPreferred;
+    }
 }