DO NOT MERGE Disable app pinning when emergency call button pressed

Also disables app pinning when the "return to call" button is pressed
and brings up the in-call screen when app pinning is stopped if there is
an existing call.

Combination of ag/1091397 and ag/1085584 adapted for MNC.

Bug: 28558307
Bug: 28761672
Change-Id: I82ec4042bff387c845ce571b197a4a86e1dd5ec8

2 files changed, 8 insertions, 1 deletions

diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index daa4c13..50d74a2 100644
--- a/services/core/java/com/android/server/am/ActivityManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
@@ -213,6 +213,7 @@ import android.os.UpdateLock;
 import android.os.UserHandle;
 import android.os.UserManager;
 import android.provider.Settings;
+import android.telecom.TelecomManager;
 import android.text.format.DateUtils;
 import android.text.format.Time;
 import android.util.AtomicFile;
@@ -9179,6 +9180,10 @@ public final class ActivityManagerService extends ActivityManagerNative
                 mStackSupervisor.setLockTaskModeLocked(null, ActivityManager.LOCK_TASK_MODE_NONE,
                         "stopLockTask", true);
             }
+            TelecomManager tm = (TelecomManager) mContext.getSystemService(Context.TELECOM_SERVICE);
+            if (tm != null) {
+                tm.showInCallScreen(false);
+            }
         } finally {
             Binder.restoreCallingIdentity(ident);
         }
diff --git a/services/core/java/com/android/server/am/ActivityStackSupervisor.java b/services/core/java/com/android/server/am/ActivityStackSupervisor.java
index 17a86ca..29f8d6f 100644
--- a/services/core/java/com/android/server/am/ActivityStackSupervisor.java
+++ b/services/core/java/com/android/server/am/ActivityStackSupervisor.java
@@ -3868,7 +3868,9 @@ public final class ActivityStackSupervisor implements DisplayListener {
     }
 
     void showLockTaskToast() {
-        mLockTaskNotify.showToast(mLockTaskModeState);
+        if (mLockTaskNotify != null) {
+            mLockTaskNotify.showToast(mLockTaskModeState);
+        }
     }
 
     void showLockTaskEscapeMessageLocked(TaskRecord task) {