[Bouncer] Reset alpha and translation of view.

Reset alpha and translation of pin view in modern arch. The alpha and
translation is affected in the disappear animation. We want to reset it.

Bug: 249336718
Test: Manual on device
Change-Id: Id506792fc263c07e9b0fc99dd515fe47daedf5af

packages/SystemUI/src/com/android/keyguard/KeyguardPINView.java

@@ -176,6 +176,8 @@ public class KeyguardPINView extends KeyguardPinBasedInputView {
 
     @Override
     public void startAppearAnimation() {
+        setAlpha(1f);
+        setTranslationY(0);
         if (mAppearAnimator.isRunning()) {
             mAppearAnimator.cancel();
         }

packages/SystemUI/src/com/android/keyguard/KeyguardSecurityContainer.java

@@ -538,7 +538,7 @@ public class KeyguardSecurityContainer extends FrameLayout {
     }
 
     /**
-     * Runs after a succsssful authentication only
+     * Runs after a successful authentication only
      */
     public void startDisappearAnimation(SecurityMode securitySelection) {
         mDisappearAnimRunning = true;
@@ -1063,6 +1063,7 @@ public class KeyguardSecurityContainer extends FrameLayout {
                 mPopup.dismiss();
                 mPopup = null;
             }
+            setupUserSwitcher();
         }
 
         @Override
@@ -1096,7 +1097,6 @@ public class KeyguardSecurityContainer extends FrameLayout {
                 return;
             }
 
-            mView.setAlpha(1f);
             mUserSwitcherViewGroup.setAlpha(0f);
             ObjectAnimator alphaAnim = ObjectAnimator.ofFloat(mUserSwitcherViewGroup, View.ALPHA,
                     1f);

packages/SystemUI/src/com/android/keyguard/KeyguardSecurityContainerController.java

@@ -427,6 +427,7 @@ public class KeyguardSecurityContainerController extends ViewController<Keyguard
 
     public void startAppearAnimation() {
         if (mCurrentSecurityMode != SecurityMode.None) {
+            mView.setAlpha(1f);
             mView.startAppearAnimation(mCurrentSecurityMode);
             getCurrentSecurityController().startAppearAnimation();
         }