Merge "Remove usage of Telephonymanager getDefault() and from() hidden APIs"
diff --git a/core/java/android/os/UserManager.java b/core/java/android/os/UserManager.java
index 9c9829f..c15618b 100644
--- a/core/java/android/os/UserManager.java
+++ b/core/java/android/os/UserManager.java
@@ -1295,8 +1295,11 @@
                 mContext.getContentResolver(),
                 Settings.Global.ALLOW_USER_SWITCHING_WHEN_SYSTEM_USER_LOCKED, 0) != 0;
         boolean isSystemUserUnlocked = isUserUnlocked(UserHandle.SYSTEM);
-        boolean inCall = TelephonyManager.getDefault().getCallState()
-                != TelephonyManager.CALL_STATE_IDLE;
+        boolean inCall = false;
+        TelephonyManager telephonyManager = mContext.getSystemService(TelephonyManager.class);
+        if (telephonyManager != null) {
+            inCall = telephonyManager.getCallState() != TelephonyManager.CALL_STATE_IDLE;
+        }
         boolean isUserSwitchDisallowed = hasUserRestriction(DISALLOW_USER_SWITCH);
         return (allowUserSwitchingWhenSystemUserLocked || isSystemUserUnlocked) && !inCall
                 && !isUserSwitchDisallowed;
diff --git a/core/java/com/android/internal/app/LocaleStore.java b/core/java/com/android/internal/app/LocaleStore.java
index c11089b..49f77e1 100644
--- a/core/java/com/android/internal/app/LocaleStore.java
+++ b/core/java/com/android/internal/app/LocaleStore.java
@@ -194,7 +194,7 @@
     private static Set<String> getSimCountries(Context context) {
         Set<String> result = new HashSet<>();
 
-        TelephonyManager tm = TelephonyManager.from(context);
+        TelephonyManager tm = context.getSystemService(TelephonyManager.class);
 
         if (tm != null) {
             String iso = tm.getSimCountryIso().toUpperCase(Locale.US);
diff --git a/services/core/java/com/android/server/notification/NotificationManagerService.java b/services/core/java/com/android/server/notification/NotificationManagerService.java
index 0d9dcff..faac78d 100755
--- a/services/core/java/com/android/server/notification/NotificationManagerService.java
+++ b/services/core/java/com/android/server/notification/NotificationManagerService.java
@@ -7234,7 +7234,7 @@
     }
 
     private void listenForCallState() {
-        TelephonyManager.from(getContext()).listen(new PhoneStateListener() {
+        getContext().getSystemService(TelephonyManager.class).listen(new PhoneStateListener() {
             @Override
             public void onCallStateChanged(int state, String incomingNumber) {
                 if (mCallState == state) return;
diff --git a/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java b/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
index 37931be..2e56fb0 100644
--- a/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
+++ b/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
@@ -1939,7 +1939,7 @@
         }
 
         TelephonyManager getTelephonyManager() {
-            return TelephonyManager.from(mContext);
+            return mContext.getSystemService(TelephonyManager.class);
         }
 
         TrustManager getTrustManager() {