[Sim Bouncer] Show sim pin view.

Show sim pin view when sim is switched to a different locked sim.

Bug: 239799178
Test: Added a unit test and also tested by adding 2 esims and switching
between the two. I was able to reproduce the issue (the logs correspond
to the bug) and was able to see the expected behavior after making the
code change.

Change-Id: If7735ab4a6ae637ccfa479cdea65c3848a107d03

packages/SystemUI/src/com/android/systemui/keyguard/KeyguardViewMediator.java

@@ -635,13 +635,13 @@ public class KeyguardViewMediator extends CoreStartable implements Dumpable,
                 case TelephonyManager.SIM_STATE_PUK_REQUIRED:
                     synchronized (KeyguardViewMediator.this) {
                         mSimWasLocked.append(slotId, true);
+                        mPendingPinLock = true;
                         if (!mShowing) {
                             if (DEBUG_SIM_STATES) Log.d(TAG,
                                     "INTENT_VALUE_ICC_LOCKED and keygaurd isn't "
                                     + "showing; need to show keyguard so user can enter sim pin");
                             doKeyguardLocked(null);
                         } else {
-                            mPendingPinLock = true;
                             resetStateLocked();
                         }
                     }
@@ -2984,6 +2984,7 @@ public class KeyguardViewMediator extends CoreStartable implements Dumpable,
         pw.print("  mPendingReset: "); pw.println(mPendingReset);
         pw.print("  mPendingLock: "); pw.println(mPendingLock);
         pw.print("  wakeAndUnlocking: "); pw.println(mWakeAndUnlocking);
+        pw.print("  mPendingPinLock: "); pw.println(mPendingPinLock);
     }
 
     /**

packages/SystemUI/tests/src/com/android/systemui/keyguard/KeyguardViewMediatorTest.java

@@ -185,6 +185,31 @@ public class KeyguardViewMediatorTest extends SysuiTestCase {
         verify(mStatusBarKeyguardViewManager, atLeast(1)).show(null);
     }
 
+    @Test
+    @TestableLooper.RunWithLooper(setAsMainLooper = true)
+    public void restoreBouncerWhenSimLockedAndKeyguardIsGoingAway_initiallyNotShowing() {
+        // When showing and provisioned
+        mViewMediator.onSystemReady();
+        when(mUpdateMonitor.isDeviceProvisioned()).thenReturn(true);
+        mViewMediator.setShowingLocked(false);
+
+        // and a SIM becomes locked and requires a PIN
+        mViewMediator.mUpdateCallback.onSimStateChanged(
+                1 /* subId */,
+                0 /* slotId */,
+                TelephonyManager.SIM_STATE_PIN_REQUIRED);
+
+        // and the keyguard goes away
+        mViewMediator.setShowingLocked(false);
+        when(mStatusBarKeyguardViewManager.isShowing()).thenReturn(false);
+        mViewMediator.mUpdateCallback.onKeyguardVisibilityChanged(false);
+
+        TestableLooper.get(this).processAllMessages();
+
+        // then make sure it comes back
+        verify(mStatusBarKeyguardViewManager, atLeast(1)).show(null);
+    }
+
     @Test
     public void testBouncerPrompt_deviceLockedByAdmin() {
         // GIVEN no trust agents enabled and biometrics aren't enrolled